| Entries |
| Document | Title | Date |
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| 20080202752 | Low density, high yield cement slurry formulation and method of using the same - A cement mix for cementing the well casing within a wellbore which contains a synergistic blend of an alkali metasilicate and/or alkali silicate, aluminum silicate and either silica fume or micro silica quartz along with a Portland cement. The cement mix, when combined with mix water, may render a cementitious slurry having a density less than or equal to 11.5 pounds per gallon (ppg); the amount of mix water in the cementitious slurry being between from about 200 to about 560 percent by weight of cement (BWOC). The compressive strength of such cementitious slurries, when cured, is in excess of 100 psi, more typically in excess of 200 psi, after 72 hours at 130° F. | 08-28-2008 |
| 20080210424 | Apparatus and Method of Fracturing - A method and apparatus for fracturing a formation containing a wellbore comprising the steps of (a) injecting a gel into the wellbore; (b) permitting for the gel to increase viscosity and (c) fracturing the formation in the vicinity of the gel. | 09-04-2008 |
| 20080236826 | METHODS OF USING WELLBORE SERVICING COMPOSITIONS - A method of servicing a wellbore comprising placing in the wellbore a composition comprising a calcium aluminate cement and at least one gelation inhibitor, and allowing the composition to set. A method of servicing a wellbore comprising adjusting the thickening time of calcium aluminate cement by contacting the cement with a salt and a gelation inhibitor, wherein the gelation inhibitor comprises a copolymer comprising one or more sulfonated aromatic monomers and one or more acrylate monomers, placing the cement in the wellbore, and allowing the cement to set. A method of servicing a wellbore comprising preventing premature gelation of calcium aluminate cement by contacting the calcium aluminate cement with a gelation inhibitor comprising a copolymer, wherein the copolymer comprises alkylbenzene sulfonic acid, at least one methallyl sulfonic acid monomer, at least one copolymerizable nonionic monomer, and at least one copolymerizable olefinically unsaturated carboxylic acid monomer, placing the cement in the wellbore, and allowing the cement to set. | 10-02-2008 |
| 20080277116 | Well Treatment Compositions and Methods Utilizing Nano-Particles - Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and combinations thereof. Embodiments also relate to methods of cementing that include the use of nano-particles. An exemplary method of cementing comprises introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water and a particulate nano-silica. Embodiments also relate to use of nano-particles in drilling fluids, completion fluids, stimulation fluids, and well clean-up fluids. | 11-13-2008 |
| 20080289824 | Primary Well Cementing With Downhole Mixed Epoxy - A two part epoxy resin system is mixed downhole in a method of primary cementing a well. Using this two part epoxy resin and activator system, one of the components is first placed in the annulus of the well at the desired plugging depth. Next, the other component is placed in the annulus above the first placed component. Densities of the components have been selected such that the density of the second placed component is sufficiently higher then the density of the first placed component to facilitate gravity mixing of the two components as the second placed component moves through the first placed component and in the process activation occurs. | 11-27-2008 |
| 20080289825 | Downhole Mixing Of Encapsulated Plug Components For Primary Cementing A Well - A two part encapsulated cementing system is mixed downhole in a method of primary cementing a well. Using this two part system, one of the components is first placed in the annulus of the well. Next, the other component is placed in the annulus above the first placed component. Densities of the components have been selected such that the density of the second placed component is sufficiently higher then the density of the first placed component to facilitate gravity mixing of the two components as the second placed component moves through the first placed component and in the process activation occurs. | 11-27-2008 |
| 20090008095 | Wellbore Fluid Comprising a Base Fluid and a Particulate Bridging Agent - A wellbore fluid comprising a base fluid and a particulate bridging agent comprised of a sparingly water-soluble material selected from the group consisting of melamine(2,4,5-triamino-1,3,5-triazine), lithium carbonate, lithium phosphate (Li | 01-08-2009 |
| 20090014178 | Well treatment - The present invention provides a method for the treatment of a subterranean formation which contains sand particles, said method comprising contacting said formation with a positively charged polymer capable of increasing the residual matrix strength of said sand particles whereby to reduce or prevent their migration whilst minimising any decrease in the permeability of said formation. Polymer materials suitable for use in the method of the invention include polyaminoacids, poly (diallyl ammonium salts) and mixtures thereof. | 01-15-2009 |
| 20090020286 | Plugging a Mined-Through Well - A system and method of plugging a well bore includes intersecting a portion of a well with a subterranean cavern. A portion of the well may be isolated to prevent accumulation of reservoir fluids in the subterranean cavern by, for example, inserting a packer in the well to form a seal. A sealing material may be pumped into and allowed of solidify in the portion of the well to form a partition between the subterranean cavern and the remainder of the well. The formed partition permits continued production from the well and continued mining in the subterranean cavern. | 01-22-2009 |
| 20090038800 | Sealant Compositions and Methods of Use - Of the many methods and compositions provided herein, one method includes a method comprising introducing a sealant composition into a well bore that penetrates a subterranean formation, wherein the sealant composition comprises a base fluid, a binder material, and a filler material; and allowing the sealant composition to form a cohesive sealant. One composition provided herein includes a sealant composition comprising a base fluid, a binder material, and a filler material, wherein the sealant composition will form a cohesive sealant. | 02-12-2009 |
| 20090056946 | WELL REMEDIATION USING DOWNHOLE SLURRY - A method of remediation of a well is provided utilizing a cement and cement activator plugging composition, in which one of the components is first placed in the well at the desired remediation depth. Next, the other component is placed in the well above the first placed component. Densities of the components have been selected such that the density of the second placed component is sufficiently higher then the density of the first placed component to facilitate gravity mixing of the two components as the second placed component moves through the first placed component and in the process activation occurs. | 03-05-2009 |
| 20090120643 | METHOD OF BLOCKING WATER-OUT ZONE IN A GAS WELL BY DUMPING CEMENT AND INJECTING PRESSURIZING GAS - In a method of blocking a water-out zone in a gas well by dumping cement and injecting pressurizing gas, a gas is injected into a target well to push and press accumulated water in the well back into the formation surrounding the well, so that the well is water-free; meanwhile, a dump bailer is lowered to the water-out zone in the well using a wire line. When the dump bailer has reached the water-out zone, it is controlled to open a bottom opening thereof to release cement milk loaded therein. The released cement milk accumulates in the water-out zone and then slowly flows into a gravel layer between a screen pipe and a wall of the well. The gas injection continues until the cement milk is cured and hardened to achieve the object of blocking the water-out zone. | 05-14-2009 |
| 20090120644 | Reduced Carbon Footprint Settable Compositions for Use in Subterranean Formations - An example method of cementing in a subterranean formation includes determining a settable composition for use in the subterranean formation; calculating a total carbon footprint of the settable composition; determining at least one additive for use in the settable composition, wherein the additive replaces at least a portion of the settable composition and reduces the total carbon footprint of the settable composition; preparing the settable composition comprising the additive; placing the settable composition comprising the additive in the subterranean formation; and allowing the settable composition comprising the additive to set in the subterranean formation. Additional embodiments of the present invention include determining an amount of reduction in the carbon footprint of the settable composition; and/or communicating the amount of reduction in the carbon footprint of the settable composition to a customer or end user. | 05-14-2009 |
| 20090183876 | Control of the Properties of Cement Slurries With Optimized Polymers Combination - The invention discloses a cement slurry composition for cementing a well comprising: an hydraulic cement, water and a combination made of a hydroxyethyl cellulose and an acrylamido-methyl-propane sulfonate-acrylamide copolymer. | 07-23-2009 |
| 20090194283 | Chemical Activation for Cement Setting - The present invention relates to a method of accelerating the compressive strength development and setting time of a cement slurry during a cementing operation for a wellbore. The method generally comprises the steps of preparing a cement slurry comprising a hydraulic cement and water at the surface; placing the cement slurry in the wellbore; adding an activator to the cement slurry in the wellbore; and allowing the cement composition to set, wherein the activator acts as a set accelerating agent and a compressive strength enhancing additive. | 08-06-2009 |
| 20090236096 | CEMENT DIFFUSER FOR ANNULUS CEMENTING - A cement diffuser and method for allowing a ported tubular to be cemented in place, while keeping an annulus about a port of the ported tubular generally free of set cement. The cement diffuser includes a collection of fibers secured over the port and extending out from an outer surface of the tubular. | 09-24-2009 |
| 20090250218 | OIL-, HOT WATER-AND HEAT-RESISTANT BINDERS, PROCESS FOR PREPARING THEM AND THEIR USE - A process for preparing a binder which comprises a heterocondensate of silicon compounds and metal and/or boron compounds. The process comprises mixing a silicon component which comprises (A), at least one hydrolyzable silicon compound having a non-hydrolyzable polymerizable group, with water to form a hydrolysis product, and 15 s to 15 min after mixing (A) with water, the addition of (B), at least one compound of boron or a metal selected from Al, Ga, In, Tl, Ge, Ga, Sn, Pb, Ti, Zr, Hf, Sc, Y and La. | 10-08-2009 |
| 20090255675 | Sealing devices having a metal foam material and methods of manufacturing and using same - Sealing devices such as packers comprise a metal foam material disposed on a surface. The metal foam material comprises an initial position comprising a plurality of pockets each having an initial volume and a compressed position in which at least one of the initial volumes of at least one of the plurality of pockets is reduced by compression of the metal foam material, thereby forming a seal. The seal may be formed directly between the metal foam material and a sealing surface such as an inner wall surface of a wellbore to divide an annulus of the wellbore. Alternatively, the seal may be at least partially formed between a sealing material disposed within one or more of the plurality of pockets that is extruded from at least one of the plurality of pockets during compression of the metal foam material. | 10-15-2009 |
| 20090260819 | COMPOSITIONS AND METHODS FOR DIVERTING INJECTED FLUIDS TO ACHIEVE IMPROVED HYDROCARBON FLUID RECOVERY - The present disclosure is directed to compositions and methods that may be used for enhanced oil recovery, for modifying the permeability of subterranean formations and for increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations. The compositions may include, for example, expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 5,000 microns and a cross linking agent content of from about 100 to about 200,000 ppm of hydrolytically labile silyl ester or silyl ether crosslinkers and from 0 to about 300 ppm of non-labile crosslinkers. | 10-22-2009 |
| 20090260820 | BLOCK COPOLYMERS FOR RECOVERING HYDROCARBON FLUIDS FROM A SUBTERRANEAN RESERVOIR - The present disclosure is directed to compositions and methods that may be used for enhanced oil recovery, for modifying the permeability of subterranean formations and for increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations. The compositions may include, for example, expandable cross-linked polymeric microparticles having unexpanded volume average particle size diameters of from about 0.05 to about 5,000 microns and cross linking agent contents of from about 100 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers, wherein the expandable polymeric monomers have a block copolymer structure comprising at least two different monomers having different chemical structures. | 10-22-2009 |
| 20090277635 | Method of well treatment and construction - The invention provides a method of well construction or treatment which comprises introducing a setable cement composition down a borehole, characterized in that said composition contains pulverulent aplite. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. | 11-12-2009 |
| 20100006288 | Sorel cements and methods of making and using same - A method of servicing a wellbore comprising contacting a metal oxide, a soluble chloride or phosphate salt, water, and a liquid retarder to form a cement composition via a continuous process, wherein the liquid retarder is an aqueous solution having a concentration of less than about 25 w/v %, placing the cement composition into the wellbore, and allowing the cement composition to set. A method of servicing a wellbore comprising (a) contacting an aqueous solution with a soluble salt to form a salt solution, (b) contacting an aqueous solution with a solid retarder to form a liquid retarder wherein the liquid retarder has concentration of less than about 25 w/v %, (c) contacting water, the salt solution, and the liquid retarder to form a mixture, (d) contacting the mixture with a metal oxide to form a cement slurry, wherein the cement slurry is produced with an output rate of from about 0.5 barrels per minute to about 20 barrels per minute, (e) placing the cement slurry into the wellbore, and (f) allowing the cement slurry to set. | 01-14-2010 |
| 20100006289 | METHOD AND APPARATUS FOR SEALING ABANDONED OIL AND GAS WELLS - Apparatus and method for forming a solid sealing plug of bismuth-tin alloy material within a well casing for sealing oil or gas wells. Solid alloy material is positioned within a heating tool and lowered to a position within the well casing where the seal is to be formed. The heating tool is heated to liquefy the alloy material and the alloy material then runs out of the heating tool and solidifies on top of a cement plug previously formed within the well casing. A cement slurry or other fluid material may subsequently be deposited on top of the liquefied alloy material to enhance the sealing of the alloy plug, to form a barrier to subsequent creep of the alloy plug when the alloy solidifies and to counteract any pressure acting vertically on the bottom of the plug. | 01-14-2010 |
| 20100025038 | METHODS OF USING STABLE HYDROCARBON FOAMS - A method of treating a subterranean geological formation comprising hydrocarbons comprising injecting a foam into the formation at a rate and pressure sufficient to open at least one fracture therein and a method of completing a well in a subterranean geological formation penetrated by a well bore comprising introducing a foam into the well bore of the subterranean geological formation and carrying out a completion operation in the well bore of the subterranean geological formation. The foam comprises a liquid hydrocarbon and a nonionic polymeric surfactant comprising fluorinated repeating units, wherein the fluorinated repeating units have up to 5 perfluorinated carbon atoms, and wherein a one weight percent solution of the nonionic polymeric surfactant in kerosene has a foam half-life at 22° C. of at least 10 minutes. | 02-04-2010 |
| 20100096134 | Well Systems and Associated Methods Incorporating Fluid Loss Control - A method of controlling fluid loss from a wellbore comprises the steps of: installing a completion string including a well screen and a fluid loss control device in the wellbore; then installing a production string in the wellbore; then engaging the production string with the completion string; and then operating the fluid loss control device by varying pressure in a fluid passage. A well system comprises a completion string including a fluid loss control device, a packer and a well screen, the packer being positioned between the fluid loss control device and the screen; and a production string including another packer and engaged with the completion string, the fluid loss control device being positioned longitudinally between the packers, and the fluid loss control device being operable in response to variation of pressure in a fluid passage. | 04-22-2010 |
| 20100116496 | SUPPORT TUBE FOR A SWELL PACKER, SWELL PACKER, METHOD OF MANUFACTURING A WELL PACKER, AND METHOD FOR USING A SWELL PACKER - Disclosed herein is a swellable packer having a support element. A portion of the support element is substantially adjacent to the base tubular. Another portion of the support element is separated from the base tubular and a portion of the area between the support element and the base tubular is filled with the swellable material. Also disclosed herein is a sealing system including a packer as described above and a method for sealing within a wellbore using a packer as describe above. | 05-13-2010 |
| 20100181071 | PROCESS AND SYSTEM FOR CREATING ENHANCED CAVITATION - A system and method for cavitating a producible formation is disclosed. The method include conglomerating the formation, producing the formation above its critical draw down pressure resulting in cavitation of the formation and producing the cavitated formation below a higher maximum sand free rate (MSFR). | 07-22-2010 |
| 20100193191 | Methods and Compositions Comprising a Dual Oil/Water-Swellable Particle - Methods and compositions are provided that relate to well bore treatments that comprise swellable particles. An embodiment includes a method that comprises introducing a fluid comprising a dual oil/water-swellable particle into a subterranean formation. Another embodiment includes a method of cementing that comprises: introducing a cement composition comprising cement, water, and a dual oil/water-swellable particle into a space between a pipe string and a subterranean formation; and allowing the cement composition to set in the space. Another embodiment includes a well treatment composition comprising a dual oil/water-swellable particle. | 08-05-2010 |
| 20100212902 | CONDUCTIVE CEMENT FORMULATION AND APPLICATION FOR USE IN WELL - Method for cementing a well comprising a hydraulic cement, water, carbon fiber and graphite are provided. The synergy achieved from combining fibers and particulates into the same sample results in a composite slurry with improved electrical properties and easy-to-optimize rheologies. Method for measuring resistivity through casing thanks to the nature of the cement composition is also provided. | 08-26-2010 |
| 20100224366 | Methods of Using Colloidal Silica Based Gels - Methods are provided, the methods comprising: providing a treatment fluid that comprises a colloidal silica component; optionally providing an activator; introducing the treatment fluid to a portion of a well bore that penetrates a subterranean formation; allowing the treatment fluid to flow into a permeable zone of the subterranean formation; allowing the colloidal silica component of the treatment fluid to be activated by the heat of the formation and/or by contacting the activator; and allowing the activated colloidal silica component to increase the viscosity of the treatment fluid in the permeable zone of the subterranean formation. | 09-09-2010 |
| 20100263867 | UTILIZING ELECTROMAGNETIC RADIATION TO ACTIVATE FILTERCAKE BREAKERS DOWNHOLE - A downhole wellbore filtercake breaker is disclosed comprising one or more breaker chemicals (or activators thereof) capable of being activated with radiation to form one or more breaker reaction products which in turn are capable of reacting with the filtercake to chemically break down the filtercake. There is also disclosed a conventional reservoir drilling fluid modified to include an inactive, delayed, or sequestered breaker chemical or an activator thereof, wherein the breaker chemical (or activator) may be activated directly or indirectly by radiation, such as, microwave, visible, uV, soft x-ray, or other electromagnetic radiation. Also disclosed are methods for creating these filtercakes, and then breaking them via deploying a source of radiation that can be energized proximate to the filtercake. The breaker may be regenerated downhole by reaction with the filtercake breakdown products, and subjected again to a source of radiation to continue the breakdown of filtercake. | 10-21-2010 |
| 20110017452 | Spacer Fluids Containing Cement Kiln Dust and Methods of Use - Disclosed are spacer fluids comprising cement kiln dust (“CKD”) and methods of use in subterranean formations. | 01-27-2011 |
| 20110024113 | VISCO-ELASTIC SURFACTANT SPACERS - A spacer for use in an oil well cementing operation comprises an aqueous solution of a visco-elastic surfactant. A method of treating a well in a cementing operation, comprises pumping the spacer into a well ahead of a cement slurry for cementing the well. | 02-03-2011 |
| 20110024114 | CEMENT COMPOSITION COMPRISING MIXTURE OF ORGANIC AND INORGANIC FIBRES FOR CURING SEVERE LOSSES ESPECIALLY IN THE RESERVOIR SECTION - Disclosed is a method for controlling loss circulation and simultaneously strengthening a weakened formation when drilling for oil. This invention relates to the permeable subterranean formation and natural and induced fractured formations that encounter severe losses and their treatment with a composition composed of long rigid organic fibre with different type of fibres selected from a category of organic or inorganic fibres along with different particle sizes that orientation of fibres and packing of the solids shows a good blockage effect to resist the loss and later the final set material develop required compressive strength to cure those losses and strengthening the structure. | 02-03-2011 |
| 20110036572 | Methods for Swelling Swellable Elements in a Portion of a Well Using an Oil-in-Water Emulsion - A method is provided for swelling water-swellable elements located in a portion of a well. The method comprises the steps of: (A) introducing an oil-in-water emulsion into the portion of the well, wherein the oil-in-water emulsion comprises: (i) an aqueous liquid, wherein the aqueous liquid is the external phase of the oil-in-water emulsion; (ii) a hydrocarbon liquid, wherein the hydrocarbon liquid is an internal phase of the oil-in-water emulsion, and wherein the hydrocarbon liquid is adjacent to the external phase of the oil-in-water emulsion; and (iii) a surfactant; and (B) allowing the oil-in-water emulsion to contact the water-swellable element for a sufficient length of time to cause the thickness of the water-swellable element to expand by a desired percentage, wherein the desired percentage is at least 5%. | 02-17-2011 |
| 20110042088 | CEMENT COMPOSITION CONTAINING INORGANIC AND ORGANIC FIBERS - A cement composition, comprises a mixture of a blend of materials including cement and/or micro cement, calcium carbonate, organic fibres, and inorganic fibres; and water; wherein the composition forms a cement that is at least partially soluble in acid and/or water. A method of treating a well, comprises pumping the composition into the well, allowing the cement to set, and treating the set cement so that it is partially to completely dissolved. In case of partial dissolution the residue in time is degradable. The inorganic fiber can be used in the traditional cementing in all stages of the well construction to defeat partial losses and improve the set properties of the final set cement. | 02-24-2011 |
| 20110048713 | Radiation-Induced Triggering for Set-On-Command Compositions and Methods of Use - The present invention relates to methods useful for isolating a portion of a wellbore. In one embodiment, a method includes preparing a sealant composition containing a set modifier component. The sealant composition is placed into the wellbore and is subjected to ionizing radiation that alters the set modifier component, triggering the thickening of the sealant composition. | 03-03-2011 |
| 20110048714 | HOMOGENOUS SYNTHETIC MUD-TO-CEMENT CEMENTING GLASSES - A synthetic glass family in the quaternary phase field of CaO—SiO2—Al2O3—MgO (CSAM) with hydraulic and pozzolanic properties for use in differing applications in the gas and oil well cementing area. A method of making a mud-to-cement (MTC) slurry and a method for treating oil and gas wells with the MTC slurry containing a homogenous amorphous synthetic glass made from a mixture of inorganic materials selected from the group consisting of CSAM, wherein the cementing glasses with the mixture of inorganic materials are in a 100% amorphous phase with a degree of crystallization of zero. | 03-03-2011 |
| 20110067866 | EQUIPMENT FOR REMOTE LAUNCHING OF CEMENTING PLUGS - Equipment for servicing subterranean wells, and in some cases, an apparatus and method for remotely launching cementing plugs during the primary cementation of a subterranean well. The top plug and bottom plug are launched by different mechanisms, thereby preventing premature release of the top plug during a cementing operation. | 03-24-2011 |
| 20110114314 | Water Control Additive Compounds and Methods of Making and Using Same - Compositions and methods of reducing a flow of aqueous liquids through a subterranean formation are provided. The compositions and methods are used for water control. The compositions include a water control additive that is prepared by reacting a soluble sodium silicate and a hydrolysable organosilane compound to produce silanol that reacts and forms a bond with the formation thereby producing a binding polysiloxane. | 05-19-2011 |
| 20110120715 | SELF ADAPTIVE CEMENT SYSTEMS - A self-adaptive cement system includes cement, water and at least one additive that reacts or/and expands in contact with oil and gas. Several chemical products have been identified including rubber alkylstyrene, polynorbornene, resins such precrosslinked substituted vinyl acrylate copolymers and diatomaceous earth. These additives have the effect of making the cement self-healing in the event of physical failure or damage such as micro-annuli. The self healing property is produced by the contact with subterranean hydrocarbon fluids, the potential repair mechanism is thus activated if and when needed in case of start of loss of zonal isolation. In another embodiment, the expansion is deliberately induced by pumping a hydrocarbon fluid in the vicinity of the set cement. | 05-26-2011 |
| 20110203795 | SEALANT FOR FORMING DURABLE PLUGS IN WELLS AND METHODS FOR COMPLETING OR ABANDONING WELLS - Embodiments of the present invention generally relate to a sealant for forming durable plugs in wells and method for completing or abandoning wells. In one embodiment, a method of plugging a wellbore includes mixing sealant; mixing cement; pumping the cement and sealant into the wellbore. The cement is above the sealant and the sealant cures to become viscoelastic or semisolid. | 08-25-2011 |
| 20110265996 | Radiation-Induced Thickening for Set-On-Command Sealant Compositions and Methods of Use - The present invention includes methods relating to the setting of fluids or slurries in a wellbore. In one embodiment, a method of isolating a portion a wellbore by preparing a sealant composition comprising a fluid component and a polymeric additive component, placing the sealant composition into a wellbore and subjecting the sealant composition to ionizing radiation. The ionizing radiation can cause bonding between polymeric additive components and create a polymer matrix within the sealant composition that increases the mechanical strength of the sealant composition. | 11-03-2011 |
| 20110284223 | COMPOSITIONS AND METHODS FOR WELL CEMENTING - Organic compounds containing at least one nitrogen atom are particularly suitable as retarders for geopolymeric systems employed as well cements. Preferred compounds include aminated polymers, amine phosphonates, quaternary ammonium compounds and tertiary amines. The geopolymeric compositions are suitable for primary cementing and remedial cementing operations. The preferred temperature range within which the retarders operate is between about 20° C. and 120° C. | 11-24-2011 |
| 20110315381 | COMPOSITIONS AND METHOD FOR USE IN PLUGGING A WELL - A composition for use in plugging a well includes a mud having a plurality of plugging members therein, wherein the plugging member has a density more than about eight times that of water. A method of providing the composition into the well is also provided. | 12-29-2011 |
| 20120067577 | Magnetically Controlled Delivery of Subterranean Fluid Additives for Use in Subterranean Applications - The invention relates to providing controlled delivery of subterranean fluid additives to a well bore treatment fluid and/or a surrounding subterranean environment using intelligent materials that respond to a magnetic stimulus to release subterranean fluid additives downhole in a subterranean environment. Methods disclosed include a method of releasing a subterranean fluid additive in a subterranean formation comprising: providing a magnetically-sensitive component that comprises a subterranean fluid additive; providing a magnetic source; and releasing the subterranean fluid additive in the subterranean formation from the magnetically-sensitive component using a magnetic force generated from the magnetic source. | 03-22-2012 |
| 20120160490 | Use of Seeds as a Cement Set Retarder - A cement retarder composition, method, kit and system are herein disclosed. Seeds are added to cement to delay the setting of cement. Cement retarders are added to cement to delay the setting of the cement until it is pumped to the desired position. | 06-28-2012 |
| 20120168161 | PLUG-INDUCING MATTER AND METHOD OF PLUGGING A WELLBORE - Plug-inducing matter includes junk shot comprising members and swellable material substantially covering the members which are configured to swell upon exposure to wellbore fluids. | 07-05-2012 |
| 20120186815 | Method and Composition to Prevent Fluid Mixing in Pipe - The present invention is related in general to fluid compositions and methods for servicing subterranean wells. Particularly, the invention relates to the use of a fiber-laden fluid to separate two wellbore-service fluids as they travel through a tubular body, preventing their commingling. The invention obviates the need for mechanical devices such as wiper plugs, or special adjustment of the wellbore-service fluids' rheological properties. | 07-26-2012 |
| 20120205105 | Self-Adaptive Cements - A self-adaptive cement formulation includes cement, water, block copolymer and asphaltite-mineral particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self-healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both. | 08-16-2012 |
| 20120234540 | Particulate Flow Enhancing Additives and Associated Methods - Methods comprising providing a dry, solid particulate material comprising a cementitious material, a non-cementitious material, or a combination thereof and having a flow enhancing additive absorbed thereon. The flow enhancing additive comprises a flow inducing chemical, ethylene glycol, and water. The coated, dry, solid material is then mixed with a sufficient amount of water to form a pumpable slurry and then the slurry may be placed in a subterranean formation. In some cases the dry, solid particulate material comprising a cementitious material, a non-cementitious material, or a combination thereof and having a flow enhancing additive absorbed thereon may be stored for a period of time before the slurry is formed. | 09-20-2012 |
| 20120267107 | Foamed Spacer Fluids Containing Cement Kiln Dust and Methods of Use - Disclosed are spacer fluids comprising cement kiln dust (“CKD”) and methods of use in subterranean formations. An embodiment discloses a method comprising: providing a foamed spacer fluid comprising CKD, a foaming agent, a gas, and water; and introducing the foamed spacer fluid into a well bore to displace at least a portion of a first fluid present in the well bore. Another embodiment discloses a method comprising: providing a foamed spacer fluid comprising a partially calcined kiln feed removed from a gas stream, a foaming agent, a gas, and water, wherein the partially calcined kiln feed comprises SiO | 10-25-2012 |
| 20120273200 | METHODS FOR TREATING A WELLBORE - A method of converting a completed well into a dual completed well that includes selectively pumping a water-based fluid into a first production zone of the completed well, wherein the water-based fluid has a pH of greater than about 5; allowing the water-based fluid to form a continuous, non-flowing water-based gel in the first production zone of the completed well, wherein the water-based gel has a pH of greater than about 5; disposing a layer of cement into the completed well above the water- based gel; perforating a second production zone of the completed well in a location above the layer of cement; drilling through the layer of cement; and breaking the water-based gel located in the first production zone of the completed well, wherein the breaking comprises: exposing the water-based gel to a breaker fluid, wherein the breaker fluid has a pH of greater than about 5 is disclosed. | 11-01-2012 |
| 20120305250 | NON-INVASIVE CEMENT SPACER FLUID COMPOSITIONS, SPACER FLUID PRODUCTS, METHODS OF WELL OPERATION AND WELL APPARATUS - Spacer compositions and products may include a biopolymer component, a plant fiber component, and a weighting agent component, and in further non-limiting embodiments may include xanthan gum, a blend of plant fibers, and a weighting agent component. These spacer compositions and spacer products may be utilized in well fluid operations, including well cementing operations and well completion operations. | 12-06-2012 |
| 20120312535 | Cementing Composition Comprising within Un-Reacted Cement - The invention provides a cementing composition for use in oilfield application, wherein a significant amount of cement is left intentionally un-hydrated when the cement is set; such that said amount of un-hydrated cement becomes hydrated when the set cement is damaged. | 12-13-2012 |
| 20120325476 | Sealant Compositions Comprising Cement Kiln Dust and Tire-Rubber Particles and Methods of Use - Methods and compositions are provided that relate to sealant compositions comprising cement kiln dust, tire-rubber particles, and water. An embodiment discloses a method comprising: providing a sealant composition comprising cement kiln dust, tire-rubber particles, and water; and allowing the sealant composition to set to form a hardened mass. | 12-27-2012 |
| 20130048284 | CARBON DIOXIDE-RESISTANT PORTLAND BASED CEMENT COMPOSITION - The invention provides a carbon dioxide-resistant hydraulic cement composition. The inventive composition comprises a Portland cement, Class C fly ash and water. The Class C fly ash is present in the composition in an amount in the range of from about 5% to less than about 30% by weight based on the total weight of the cementitious components in the composition. In another aspect, the invention provides a method of cementing in a carbon dioxide environment. In yet another aspect, the invention provides a method of enhancing the recovery of a hydrocarbon fluid from a subterranean formation. | 02-28-2013 |
| 20130056207 | DOWNHOLE SEALING SYSTEM USING CEMENT ACTIVATED MATERIAL AND METHOD OF DOWNHOLE SEALING - A downhole sealing system includes a reactive material provided on a tubular and including an oxidizable substance; and a sealing material, wherein the oxidizable substance oxidizes when in contact with the sealing material. Also included is a method of providing a seal in a downhole system. | 03-07-2013 |
| 20130092377 | USE OF A CHOPPER MECHANISM TO ADD FIBERS TO A WELL - A chopper mechanism for providing a fiber to a fluid at an oilfield. The chopper mechanism may be employed to process the fiber from an uncut form to a cut form in order to provide a mixture of the fluid and the fiber with flowback inhibiting character. Techniques of employing the chopper mechanism may be utilized at the site of an oilfield for applications such as fracturing, cementing, and drilling. Additionally, the chopper mechanism itself may be made available as a large high capacity chopper assembly, or a smaller handheld chopper gun for slower rate fiber supply operations. | 04-18-2013 |
| 20130105160 | Compositions and Methods for Well Treatment | 05-02-2013 |
| 20130118742 | Engineered Fibers for Well Treatments - Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. Stiff fibers are more effective than flexible ones; however, mixtures of stiff and flexible fibers have a synergistic effect. The quantity and particle-size distribution of the solids are optimized according to the stiffness, dimensions and concentrations of fibers. | 05-16-2013 |
| 20130118743 | NONIONIC HYDROPHOBICALLY SUBSTITUTED CELLULOSE ETHERS - Novel nonionic cellulose ethers exhibit a reduced degree of thermal thinning and are efficient thickeners at elevated temperatures. The nonionic cellulose ether has hydroxyethyl groups and is further substituted with one or more hydrophobic substituents. The cellulose ether further has at least one of the properties a), b) or c): a) a retained dynamic viscosity, | 05-16-2013 |
| 20130126166 | Calcium Phosphate Cement Compositions Comprising Pumice and/or Perlite and Associated Methods - Methods and compositions are provided that related to cementing operations. Methods and compositions that include pumice and/or perlite as a replacement for fly ash. | 05-23-2013 |
| 20130133888 | AQUEOUS GELS FOR WELL BORE STRENGTHENING - A process for treating an earth formation is provided, the process may include: injecting a gelling agent into the earthen formation; injecting a crosslinking agent into the earthen formation; and reacting the gelling agent and the crosslinking agent to form a gel. The gelling agent may include at least one of a lignin, a lignosulfonate, a tannin, a tannic acid, a modified lignin, a modified lignosulfonate, a modified tannin, a modified tannic acid, biopolymers, polyacrylates, polyacrylamides, polyether amines, poly vinyl amines, and combinations thereof The crosslinking agent may include at least one of ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, butylene glycol diglycidyl ether, sorbitol polyglycidyl ether, trimethylolpropane triglycidyl ether, sorbitol polyglycidyl ether, diglycidyl ether of neopentyl glycol, epoxidized 1,6-hexanediol, aziridine derivatives, epoxy functionalized polyalkalene glycols, an oxidized starch, and combinations thereof. | 05-30-2013 |
| 20130146286 | Self-Repairing Cements - A self-adaptive cement formulation includes cement, water and thermoplastic block-polymer particles. The set cement demonstrates self-healing properties when exposed to methane, and is particularly suited for well-cementing applications. After placement and curing, the self healing properties help maintain zonal isolation should bonding be disrupted between the set cement and the formation or a casing string, should cracks or defects appear in the set-cement matrix, or both. | 06-13-2013 |
| 20130180716 | SETTABLE SPACER FLUIDS COMPRISING PUMICITE AND METHODS OF USING SUCH FLUIDS IN SUBTERRANEAN FORMATIONS - Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing pumicite and methods of using these treatment fluids in subterranean formations, are provided. An example of a method is a method of displacing a fluid in a well bore. Another example of a method is a method of separating fluids in a well bore in a subterranean formation. An example of a composition is a settable spacer fluid comprising pumicite, an activating agent, and a base fluid. | 07-18-2013 |
| 20130180717 | SYSTEM, METHOD AND APPARATUS FOR ENTRAINING AIR IN CONCRETE - A method of preparing a concrete composition for downhole injection includes utilizing a controller to control a process including circulating process water in a process water supply loop for a predetermined period while monitoring and controlling the temperature and flow rate of the process water, circulating aqueous-based air entrainment solution in an aqueous-based air entrainment solution supply loop for the predetermined period and controlling the flow rate of the aqueous-based air entrainment solution and after the predetermined period of time in which the flow of process water and aqueous-based air entrainment solution have stabilized, simultaneously actuating valves to divert and mix the process water, the aqueous-based air entrainment solution and compressed air to produce an air-entrained foam and mixing the foam with a concrete composition to be deployed downhole. | 07-18-2013 |
| 20130233550 | Set-Delayed Cement Compositions Comprising Pumice and Associated Methods - A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation, comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. | 09-12-2013 |
| 20130233551 | Methods for Servicing Subterranean Wells - Pumpable process-fluid compositions and methods for establishing hydraulic isolation in cemented subterranean wells comprise more than 1 wt % polyacrylamide and a non-metallic crosslinker. Upon entering voids and cracks in or adjacent to a cement sheath, and contacting the set-cement surfaces, the compositions react and form a seal that prevents further leakage. | 09-12-2013 |
| 20130233552 | MACROMOLECULAR, AMPHIPHILIC COMPOUNDS AS WATER RETENTION AGENTS FOR CONSTRUCTION CHEMISTRY SYSTEMS, IN PARTICULAR FOR WELL CEMENTING - The water retention agents according to the invention are outstandingly suitable as additives in construction chemistry systems and in the development, exploitation and completion of underground mineral oil and natural gas deposits and in deep wells, their effect being particularly advantageous at increased temperatures and because of their lack of influence on the rheological properties of the well slurries. | 09-12-2013 |
| 20130233553 | Methods for Servicing Subterranean Wells - Methods for controlling fluid flow through one or more pathways in one or more rock formations penetrated by a borehole in a subterranean well, comprise injecting into or adjacent to the formation a treatment fluid comprising at least one polysaccharide polymer; at least one crosslinker; and fibers, or a mixture of fibers and particles. The fluids are pumped into the well through a tubular body that comprises at least one flow restriction. Shearing of the treatment fluid as it passes through the flow restriction causes the viscosity to decrease, allowing the fibers to form masses that migrate to formation-rock openings such as pores, cracks, fissures and vugs. As a result, the fibrous masses are useful for curing lost circulation, providing fluid-loss control and as diverting agents. | 09-12-2013 |
| 20130248183 | Cement Set Activators for Set-Delayed Cement Compositions and Associated Methods - Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. A method of cementing in a subterranean formation, may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, activating the set-delayed cement composition with a cement set activator, wherein the cement set activator comprises at least one activator selected from the group consisting of nanosilica, a polyphosphate, and combinations thereof, introducing the set-delayed cement composition into a subterranean formation, and allowing the set-delayed cement composition to set in the subterranean formation. | 09-26-2013 |
| 20130255948 | Compositions and Methods for Well Completions - Well-cementing compositions for use in high-pressure, high-temperature (HPHT) wells are often densified, and contain weighting agents such as hematite, ilmenite, barite and hausmannite. The weighting agents are usually finely divided to help keep them suspended in the cement slurry. At high temperatures, finely divided weighting agents based on metal oxides react with the calcium-silicate-hydrate binder in set Portland, cement, leading to cement deterioration. Finely divided weighting agents based on metal sulfates are inert with respect to calcium silicate hydrate; consequently, set-cement stability is preserved. | 10-03-2013 |
| 20130269940 | Retarded Cement Compositions and Methods for Well Completions - Cement retarders are based on blends of lignosulfonate compounds, borate compounds and gluconate compounds. The compounds are present in certain ratios that allow the retarders to operate at temperatures and pressures up to and exceeding about 176° C. and 152 MPa. The retarders may also be provided in liquid form, improving their suitability for use at offshore well-site locations. | 10-17-2013 |
| 20130312966 | IN SITU DECOMPOSITION OF CARBONYLS AT HIGH TEMPERATURE FOR FIXING INCOMPLETE AND FAILED WELL SEALS - Methods and systems relating to in situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals, are described. According to one embodiment, a method, comprises injecting a sealing agent into a subterranean well having sealing channels or voids in well casings. An alkaline-earth carbonate precipitate is formed from the decomposition of a carbonyl compound. The sealing agent includes the carbonyl compound and an alkaline-earth halide salt. | 11-28-2013 |
| 20130312967 | METHOD FOR LIMITING THE WATER OR GAS CONING IN AN EXTRACTION WELL OF A HYDROCARBON FLUID - The present invention relates to a method for limiting the water or gas coning in an extraction well of a hydrocarbon fluid from an underground reservoir, said reservoir being close to an aquifer or cap gas, said method comprising the following operative phases: i) injecting a treatment fluid into the subsoil, having an intermediate density between that of the hydrocarbon fluid and that of the water of the aquifer or the cap gas, said treatment fluid being insoluble in said hydrocarbon fluid, said water and/or said cap gas; ii) waiting for the treatment fluid to settle by gravity at the hydrocarbon fluid/water or hydrocarbon fluid/gas interface; iii) in situ activating said treatment fluid and forming a substantially horizontal permeability barrier with respect to the water of the aquifer or the cap gas. The present invention also relates to a confinement system consisting of a barrier impermeable to water or gas obtained with the above method. | 11-28-2013 |
| 20140014341 | THERMALLY ENHANCED HDD GROUT - A grout used in horizontal directional drilling including a silica material present in an amount of from about | 01-16-2014 |
| 20140027116 | POLYMER NANOCOMPOSITE, PROCESS FOR MAKING AND USE OF SAME - A process for stabilizing particles includes disposing reactive nanoparticles in a borehole; contacting the reactive nanoparticles with a resin; introducing a curing agent; and curing the resin and reactive nanoparticles with the curing agent to form a nanocomposite, wherein, during curing, the nanocomposite is bonded to the particles to stabilize the particles. A process for consolidating particles includes coating the particles with a resin; introducing reactive nanoparticles; curing the resin and reactive nanoparticles with a curing agent to form a nanocomposite which is bonded to the particles; and controlling a rate of the curing by an amount of the curing agent which is present with the resin, wherein the nanocomposite bonded to the particles is thermally stable up to at least 600° F. (315° C.). A system comprises a resin; reactive nanoparticles; a curing agent to form a nanocomposite; and particles disposed in a downhole location to which the nanocomposite binds. | 01-30-2014 |
| 20140034313 | Cement Set Activators for Cement Compositions and Associated Methods - Disclosed herein are cement compositions and methods of using cement compositions in subterranean formations. An embodiment comprises a method of cementing in a subterranean formation comprising: providing a cement composition comprising water, a pozzolan, hydrated lime, and a zeolite activator; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation, wherein the zeolite activator accelerates compressive strength development of the cement composition. | 02-06-2014 |
| 20140034314 | Mitigation of Contamination Effects in Set-Delayed Cement Compositions Comprising Pumice and Hydrated Lime - Methods and compositions for cementing are disclosed. Embodiments include a method of cementing comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, a primary set retarder, a secondary set retarder; activating the set-delayed cement composition to produce an activated cement composition; introducing the activated cement composition into a subterranean formation; and allowing the activated cement composition to set in the subterranean formation. | 02-06-2014 |
| 20140041870 | Method For Reducing Permeability Of A Subterranean Reservoir - The present invention provides a method of isolating a selected reservoir zone in a subterranean reservoir comprising at least the step of squeezing a treatment fluid into the selected reservoir zone, the treatment fluid comprising: a viscosifying agent; a fluid loss control agent; and a particulate material. The invention further provides a treatment fluid comprising a base fluid; a viscosifying agent; at least 20 kg/m | 02-13-2014 |
| 20140048264 | Geopolymer Cement Compositions and Methods of Use - Methods and compositions for cementing operations that include pumice in geopolymer cement compositions comprising slag. | 02-20-2014 |
| 20140048265 | COHESIVE SETTABLE CEMENT SYSTEM - A lightweight cross-linked gelled settable cement fluid system derived by pre-hydrating a water gelling agent, and then using that to mix with a cement blend which results in a very stable cement blend, which will matriculate through any fluid and not disperse, and form a cohesive plug wherever it comes to rest; wherein the fluid is injected at the bottom of the 10 pound/gal brine, and the fluid rises to the top of the brine where it reforms into a cohesive plug and hardens; and wherein the fluid can be applied to any density solution, and provide stability and cohesiveness to any settable plug; and wherein the cement/gelled water mixture is then cross-linked using standard hydraulic fracturing cross-linkers to provide a stable structure and ability to matriculate through another fluid and not disperse into that fluid. In a second embodiment the lightweight cross-linked gelled settable cement fluid which is cohesive and stable to be used as a balanced plug during cementing procedures to avoid the plug from becoming dilute in order to develop compressive strength, prevent fluid interchange from occurring and ensuring that all the cement placed would set in place. | 02-20-2014 |
| 20140048266 | Methods for Determining Reactive Index for Cement Kiln Dust, Associated Compositions and Methods of Use - A variety of methods and compositions are disclosed, including, in one embodiment, a method of treating a well comprising: providing a treatment fluid comprising a base fluid and a blended cementitious component, wherein the blended cementitious component comprises kiln dust from two or more different sources; and introducing the treatment fluid into a well bore. | 02-20-2014 |
| 20140048267 | Two-Part Set-Delayed Cement Compositions - A variety of methods and compositions are disclosed, including, in one embodiment a method of cementing comprising: providing a pozzolan slurry comprising a pozzolan and water; providing a lime slurry comprising hydrated lime and water; allowing the pozzolan slurry and the lime slurry to remain separate for about one day or longer; mixing the pozzolan slurry and the lime slurry to form a cement composition; and allowing the cement composition to set. | 02-20-2014 |
| 20140054037 | Methods for Completing Subterranean Wells - Methods for cementing a subterranean well comprise installing a casing string into a borehole, wherein the casing string comprises a metal having a coefficient of thermal expansion (CTE) lower than about 6×10 | 02-27-2014 |
| 20140060834 | Controlled Electrolytic Metallic Materials for Wellbore Sealing and Strengthening - Contacting the wellbore with a fluid composition and forming a metallic powder barrier at or near the tip of a fracture extending from the wellbore into a subterranean formation may strengthen a wellbore. The fluid composition may include a base fluid and a metallic powder having a plurality of metallic powder particles. The base fluid may include a drilling fluid, a completion fluid, a servicing fluid, a fracturing fluid, and mixtures thereof. The metallic powder particles may have a particle core and a metallic coating layer. The particle core may include a core material selected, such as magnesium, zinc, aluminum, manganese, vanadium, chromium, molybdenum, iron, cobalt, silicon, nitride, tungsten, and a combination thereof. The metallic coating layer may be disposed on the particle core thereby forming a metallic powder particle. The metallic powder particles may be configured for solid-state sintering to one another to form the metallic particle compacts. | 03-06-2014 |
| 20140083698 | Cement Compositions for Cementing in Confined Locales and Methods for Use Thereof - When conducting cementing operations within confined locales, such as the annular space within a wellbore, it can sometimes be difficult to successfully deliver an uncured cement composition to a desired location. Cementing methods can comprise: providing a cement composition comprising a cement and a property control package, the property control package comprising: a filtration control agent; a friction reducer; and a setting accelerator; introducing the cement composition into a mineral exploration wellbore; and setting the cement composition in the wellbore. | 03-27-2014 |
| 20140083699 | Placing a Fluid Comprising Kiln Dust in a Wellbore Through a Bottom Hole Assembly - Embodiments relate to systems and methods for introduction of fluids comprising kiln dust into a wellbore through a bottom hole assembly. An embodiment discloses a method comprising: drilling a wellbore in a subterranean formation using a bottom hole assembly; and pumping a treatment fluid into the wellbore through the bottom hole assembly, wherein the treatment fluid comprises a kiln dust and water. | 03-27-2014 |
| 20140110113 | Crosslinkable Water Soluble Compositions And Methods Of Using The Same - Water and gas flow into a subterranean reservoir may be reduced by pumping into the reservoir a multi-aldehyde crosslinking agent and a low molecular weight polyacrylamide capable of crosslinking with the crosslinking agent. The reaction product forms a gel plug impermeable to water and gas. | 04-24-2014 |
| 20140116701 | WELLBORE SERVICING MATERIALS AND METHODS OF MAKING AND USING SAME - A method of servicing a wellbore in a subterranean formation comprising placing a first wellbore servicing fluid comprising a self-degrading diverter material into the wellbore wherein the self-degrading diverter materials comprises (i) a diverting material and (ii) a degradation accelerator; allowing the self-degrading diverter material to form a diverter plug at a first location in the wellbore or subterranean formation; diverting the flow of a second wellbore servicing fluid to a second location in the wellbore or subterranean formation; and removing the diverter plug, wherein the first and second wellbore servicing fluids may be the same or different. | 05-01-2014 |
| 20140138089 | SYSTEM AND METHOD FOR PRODUCING HIGH PRESSURE FOAM SLURRY - The current application discloses methods and systems for generating high pressure dual phase mixture. In some embodiments, the methods and systems involve mounting a dual phase mixture generator on a transportable platform wherein the dual phase mixture generator comprises a mixing chamber connected with at least a first inlet, a second inlet, and a first outlet. A first container and a first pump are also mounted on the transportable platform wherein the first pump is operably connected with the first container. The transportable platform and the mounted equipments are then deployed at a wellsite. A base fluid is pumped into the first inlet under high pressure, and a gas is pumped into the second inlet under high pressure. The base fluid and the gas is combined in the mixing chamber to generate a high pressure dual phase mixture, which is then discharged via the outlet. | 05-22-2014 |
| 20140144636 | COMPOSITION OF PACKER FLUID FOR DEEP AND ULTRA-DEEP WELLS IN ENVIRONMENTS CONTAINING CO2 AND A PROCESS OF USING THE SAME - A composition of a packer fluid including biodiesel glycerin which can be used in deep and ultra-deep wells in environments containing CO | 05-29-2014 |
| 20140166285 | NOVEL WEIGHTED ELASTOMER SYSTEMS FOR USE IN CEMENT, SPACER AND DRILLING FLUIDS - A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a particulate weighted elastomeric composition system including at least one higher density weighting agent and at least one elastomer, where the higher density weighting agents have a density of at least 5.0 g/cm | 06-19-2014 |
| 20140174739 | USING COLLOIDAL SILICA AS ISOLATOR, DIVERTER AND BLOCKING AGENT FOR SUBSURFACE GEOLOGICAL APPLICATIONS - A system for blocking fast flow paths in geological formations includes preparing a solution of colloidal silica having a nonviscous phase and a solid gel phase. The solution of colloidal silica is injected into the geological formations while the solution of colloidal silica is in the nonviscous phase. The solution of colloidal silica is directed into the fast flow paths and reaches the solid gel phase in the fast flow paths thereby blocking flow of fluid in the fast paths. | 06-26-2014 |
| 20140174740 | METHOD OF INTERSECTING A FIRST WELL BORE BY A SECOND WELL BORE - In some general aspects, methods for intersecting a first, cased well bore include drilling a second well bore that has a distal end proximal to the first, cased well bore to be intersected, disposing a mill guiding device in the second well bore near a casing of the first, cased well bore, the mill guiding device being configured to direct a mill of a milling assembly away from a central axis of the second well bore and towards the first, cased well bore, inserting the milling assembly into the second well bore, operating the mill of the mill assembly and guiding the milling assembly along the mill guide and into the casing of the first well bore, and removing material from the casing of the first well bore until the first, cased well bore and the second well bore are fluidly connected. | 06-26-2014 |
| 20140196901 | CEMENT COMPOSITION CONTAINING AN ADDITIVE OF A POZZOLAN AND A STRENGTH RETROGRESSION INHIBITOR - A cement composition comprises: cement; water; and an additive, wherein the additive is a pozzolan and a strength-retrogression inhibitor, and wherein a mixture consisting essentially of: the additive; water; and a source of calcium develops a compressive strength of at least 500 psi at a time of 24 hours, a temperature of 190° F., and a pressure of 3,000 psi. A method of cementing in a subterranean formation comprises: introducing the cement composition into the subterranean formation and allowing the cement composition to set. The compressive strength of the test cement composition consisting essentially of: the cement; the water; and the additive at a final time of 72 hours has a percent change greater than −5% from the compressive strength of the test cement composition at an initial time of 24 hours when tested at a temperature of 300° F. and a pressure of 3,000 psi. | 07-17-2014 |
| 20140209307 | Wellbore Fluids Comprising Mineral Particles and Methods Relating Thereto - Mineral particles may provide for wellbore fluids with tailorable properties and capabilities, and methods relating thereto. Mineral particles may be utilized in methods that include introducing a wellbore fluid having a density of about 7 ppg to about 50 ppg into a wellbore penetrating a subterranean formation, the wellbore fluid comprising a base fluid and a plurality of mineral particles, and the wellbore fluid having a first viscosity; contacting at least some of the mineral particles with a linking agent so as to link the at least some of the mineral particles, thereby increasing the first viscosity to a second viscosity. | 07-31-2014 |
| 20140231086 | METHODS AND COMPOSITIONS FOR TREATING SUBTERRANEAN FORMATIONS WITH SWELLABLE LOST CIRCULATION MATERIALS - Methods of treating a fluid loss zone in a wellbore in a subterranean formation including providing swellable particles having an initial unswelled volume, wherein the swellable particles upon swelling adopt a specific shape; introducing the swellable particles into the wellbore in the subterranean formation; and swelling the swellable particles so as to adopt a swelled volume beyond the initial unswelled volume; and sealing at least a portion of the fluid loss zone. | 08-21-2014 |
| 20140238676 | CEMENT SLURRY COMPOSITIONS AND METHODS - A cement slurry composition is described as having cement, water, and organic polymeric particles. The composition also includes non-ionic surfactants, which may contain ethoxylate groups or contain both ethoxylate groups and propyxlate groups in the hydrophilic part. The non-ionic surfactant acts to disperse the hydrophobic polymeric particles in the slurry and to reduce or prevent foaming. The cement slurry composition is prepared and then pumped into the subterranean well and placed in a zone of the subterranean well. Time is then allowed for the cement slurry composition to set into a solid mass in the zone. | 08-28-2014 |
| 20140238677 | CHITIN NANOCRYSTAL CONTAINING WELLBORE FLUIDS - The current invention relates to the use of chitin nanocrystals and chitin nanocrystal derivatives. More specifically, the present invention relates to the use of chitin nanocrystals and chitin nanocrystals used in oil and gas operations. The chitin nanocrystals and chitin nanocrystals derivatives can be used as additives to cement and wellbore fluids and can be used to inhibit corrosion in pipelines, on downhole tools and on other oil and gas related equipment. | 08-28-2014 |
| 20140251614 | Alkyl Polyglycoside Derivative as Biodegradable Foaming Surfactant for Cement - A cement composition: (a) a hydraulic cement; (b) water; and (c) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of: sulfonates, betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. A method comprising the steps of: (A) forming the cement composition; and (B) introducing the cement composition into the well. Preferably, the cement composition is foamed. | 09-11-2014 |
| 20140262267 | WELL SEALING TECHNOLOGY - A method for sealing a wellbore around a pipe placed within it is disclosed. The method includes providing to a wellbore site a pre-mixed pre-polymer sealant solution and storing the sealant until use. The sealant material may be injected into wellbore in the space exterior to the pipe so that the sealant material contacts at least some portion of the pipe exterior surface and the wellbore interior surface. Upon injection, the sealant material may begin to cure from contact with moisture in the ground, the curing causing the sealant material to release a gas and form a sealing foam into the extra-pipe space. The sealing foam may then be permitted to cure to form a flexible and stable seal. | 09-18-2014 |
| 20140262268 | Drilling and Completion Applications of Magnetorheological Fluid Barrier Pills - A well apparatus including a magnetic field source positioned in a borehole and a magnetorheological fluid that forms a barrier pill proximate to the magnetic field source where the barrier pill formation isolates one well zone from another well zone. The apparatus may be used to define a treatment or cementation zone. A method for utilizing the apparatus for creation or maintenance of a well includes introducing a magnetorheological fluid into a borehole, forming a downhole barrier pill by providing a magnetic field source proximate to the fluid, and isolating one well zone from another well zone. | 09-18-2014 |
| 20140318783 | Method of Real Time Monitoring of Well Operations Using Self-Sensing Treatment Fluids - Downhole conditions in a wellbore may be monitored in real time by pumping into the well a sensing treatment fluid which includes a piezoelectric or piezoresistive material and measuring changes in electrical resistivity within the wellbore. The monitoring in real time of the piezoelectric or piezoresistive material enhances the integrity of the wellbore during the setting of the treatment fluid as well as during the lifetime of the well. | 10-30-2014 |
| 20140332215 | Compositions and Methods for Well Completions - A self-healing cement for use in wells in which acid gases are injected, stored or extracted, comprises an acid-swelling material. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the material swells when contacted by acid gases, including carbon dioxide and hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation. The acid swelling material may also be used without cement for remedial treatments to restore zonal isolation. | 11-13-2014 |
| 20140345866 | MODIFIED CEMENT COMPOSITION, PREPARATION AND APPLICATION THEREOF - Light to ultra-light cement compositions with modified rheological properties. The cement composition includes cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry with high compressive strength, low porosity, low free water, and low fluid loss with a quick thickening time. | 11-27-2014 |
| 20140352963 | Powder Defoaming Compositions and Methods of Reducing Gas Entrainment In Fluids - Powder defoaming compositions comprising one or more water soluble alkali salts, and one or more defoaming agents. Also disclosed are compositions including flowable materials and a defoaming composition, and methods for reducing the amount of gas present in a fluid using said defoaming compositions. | 12-04-2014 |
| 20140367103 | Compositions and Methods for Completing Subterranean Wells - Spacer fluids that are stable at temperatures up to at least 260° C. comprise water, polystyrene sulfonate and a mixture of particulate materials. The particulate materials may be chosen such that the mixture has at least a trimodal particle-size distribution. The fluids may further comprise inorganic clays, mutual solvents and surfactants. | 12-18-2014 |
| 20150021027 | WELLBORE FLUID - The present invention provides a wellbore fluid, such as a drilling, completion or workover fluid, said wellbore fluid comprising a glucomannan additive. Further provided is a method of forming a gel plug from the wellbore fluid, a method of modifying the properties of a wellbore fluid, a method of drilling a subterranean hole with such a fluid and the use of glucomannan in wellbore fluids. | 01-22-2015 |
| 20150083422 | WELLBORE ENCASEMENT - A method of encasing a wellbore is provided comprising the application of 3D printing technology to apply a series of layers of lining material to the interior surface of a wellbore. The layers may be of different materials to make best use of their different material properties, to provide structural integrity and good sealing properties, for example. Through suitable printhead control, specific structural features such as channels for receiving measurement, power or communications equipment may be incorporated into the lining structure. Associated devices for depositing the layers of lining material are also provided. | 03-26-2015 |
| 20150083423 | METHOD FOR IMPROVING ISOLATION OF FLOW TO COMPLETED PERFORATED INTERVALS - A method for building a plug in a horizontal wellbore using a fluid pill containing a suspended well treatment composite. The well treatment composite contains a core comprising at least one deformable particulate and at least one dissolvable diverter. At least a portion of the surface of the core is coated with at least one viscosifying polymer and at least one crosslinking agent. The fluid pill is pumped into the wellbore at the end of a fracturing treatment and the fluid pill may be displaced by a displacement fluid. The fluid pill may be diverted to an area of lower permeability by disassociating the dissolvable diverter from the core. The disassociated diverter blocks an area of higher permeability. The sized particle distribution of the diverter is sufficient to at least partially block the penetration of fluid into the high permeability zone. In the lower permeability zone, a thickened gel is formed by the in-situ reaction of the viscosifying polymer and crosslinking. Deformable particulates in the gelled fluid form a bridge plug. | 03-26-2015 |
| 20150101810 | CEMENTING A WELLBORE USING CEMENTING MATERIAL ENCAPLSULATEO IN A SHELL - A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe. | 04-16-2015 |
| 20150129216 | COMPOSITION AND METHOD FOR TREATING SUBTERRANEAN FORMATIONS USING INORGANIC FIBERS IN INJECTED FLUIDS - A method of plugging an opening in a subterranean formation such as a fracture system is provided. A gel composition can be provided which includes an aqueous fluid, a cross-linkable polymer soluble in the aqueous fluid and a cross-linking agent. Inorganic fibers can be added to the gel composition. The gel composition can be injected into the opening in the subterranean formation. The gel composition can be cross-linked, and the opening can be plugged with the gel composition. In certain illustrative embodiments, the inorganic fibers can be mineral wool fibers. | 05-14-2015 |
| 20150292278 | Method of Stopping Lost Circulation - A method for forming a seal to subterranean fractures or other voids penetrated by a wellbore comprises a particulate sealing formulation of fast sealing and fast strengthening. To achieve fast sealing, the particulate formulation is comprised of particulates of a wide and continuous particle size distribution. Furthermore, the method comprises minimizing the spurt loss of a formulation by adjusting its particulates larger than D30, based on evaluation with a slot disk test method. The fast strengthening of the formulation is achieved by fast accumulation of particulates onto the initially formed seal. Furthermore, the method comprises maximizing the fluid loss after spurt of a formulation by adjusting its particulates smaller than D30 or adding some diatomaceous earth. At least 5% of the sealing particulates by volume of the total particulates are smaller than 200 micron and acid soluble. | 10-15-2015 |
| 20150308221 | METHOD OF PROVIDING A BARRIER IN A FRACTURE-CONTAINING SYSTEM - The present invention relates to a method of providing a barrier in a fracture-containing system, comprising: i) Providing a treatment fluid comprising: a) a base fluid; b) an elastomeric material, wherein said elastomeric material comprises at least one polymer capable of crosslinking into an elastomer, and c) at least one crosslinking agent; ii) Placing the treatment fluid in a fracture-containing system; iii) Allowing the elastomeric material to crosslink with itself to form a barrier in said fracture-containing system; wherein the elastomeric material and/or the crosslinking agent are of neutral buoyancy with regard to the base fluid. The invention is contemplated to having utility not only in the oil-drilling industry but also in the plugging of fractures in sewer drains, pipelines etc. | 10-29-2015 |
| 20150344766 | ENHANCED WELLBORE STRENGTHENING SOLUTION - Wellbore fluid compositions containing a base fluid; at least one synthetic fiber; and a particulate solid are provided. In another aspect, methods of reducing loss of wellbore fluid into and strengthening of a formation are provided, including: introducing into the wellbore a fluid composition comprising one or more synthetic fibers and one or more particulate solids. | 12-03-2015 |
| 20150345250 | INTERVENTION TOOL FOR DELIVERING SELF-ASSEMBLING REPAIR FLUID - Certain aspects are directed to devices for use in a wellbore in a sub-terranean formation. There is provided an intervention tool that may be used to set a self-assembling remedial screen, patch, plug, create a remedial isolation zone, conduct remedial securement, or otherwise provide a remedial fix to one or more components of the completion in a downhole configuration. The intervention tool may have a tool shaft, at least two magnets positioned with respect to the tool shaft, a carrier fluid containing magnetically responsive particles, one or more injection ports on the tool shaft, and a fluid deployment system to cause deployment of the carrier fluid out of the tool shaft through the one or more injection ports. | 12-03-2015 |
| 20160032169 | POLYMERIC COMPOSITIONS FOR DOWNHOLE APPLICATIONS - Methods for treating a wellbore and compositions used for same are provided that include emplacing a polymer-forming composition in the wellbore, and initiating polymerization of the polymer-forming composition to form a polymerized material in the selected region of the wellbore. In some aspects, polymeric compositions provided may also be useful for isolating pressure differentials downhole. | 02-04-2016 |
| 20160046853 | Napthol-Based Epoxy Resin Additives For Use In Well Cementing - Disclosed are methods and compositions for cementing in a subterranean formation. A method comprises introducing a resin composition into a wellbore. The resin composition may comprise a resin, a napthol-based epoxy resin additive, and a hardening agent. The napthol-based epoxy resin additive may comprise two naphthalene functional groups and two epoxide functional groups. | 02-18-2016 |
| 20160068735 | COMPOSITIONS AND METHODS FOR FIBER-CONTAINING GROUT - The invention relates to cementitious or grout compositions and drilling fluids including reinforcement fibers and methods relating thereto. The cementitious or grout compositions include dry blend material and reinforcement fibers. Each of the fibers can have one or more of a pre-selected mean length, denier, diameter and aspect ratio to improve dispersion in dry blending the cementitious or grout compositions. | 03-10-2016 |
| 20160069155 | HIGH STRENGTH DISSOLVABLE COMPOSITIONS FOR USE IN SUBTERRANEAN WELLS - A polymetaphosphate composition and method for temporarily sealing a perforation in a wellbore to facilitate a treatment therein and a well tool which can include a flow path, and a flow blocking device which selectively prevents flow through the flow path. The well tool can include a polymetaphosphate composition. A method of constructing a downhole well tool can include forming a structure of a solid mass comprising a polymetaphosphate composition, and incorporating the structure into the well tool. | 03-10-2016 |
| 20160084037 | CEMENT BLENDS INCLUDING INERT MICROPARTICLES - Dry cement blends that include inert microparticles may be used to produce cement slurries with a lower viscosity and a longer aging window. For example, a related method may include providing a cement dry blend comprising a plurality of cement particles and a plurality of inert microparticles, wherein the inert microparticles have an average diameter at least about 3 times smaller than that of the average diameter of the cement particles; mixing water, a set retarding additive, and the cement dry blend to yield a cement slurry; storing the cement slurry; mixing a cement set accelerator into the cement slurry; introducing the cement slurry into a wellbore penetrating a subterranean formation; and allowing the cement slurry to set at a location within the wellbore, the subterranean formation, or both. | 03-24-2016 |
| 20160108697 | Mixing and Injecting Fiber-based Stimulation Fluids - An emulsion is mixed with fibers while the emulsion is moving through a surface tubing using a venturi. The fiber/emulsion mixture is injected into a pressurized tank and the pressurized fiber/emulsion mixture is injected from the pressurized tank into a desired location in a wellbore. Pumps and pressure boosters may be used to move the fluid. Alternatively, an emulsion and a fiber suspension is provided and a first downhole tubing disposed in a wellbore conveys the emulsion downhole while a second downhole tubing disposed in the wellbore and circumferentially enclosing all or part of the first downhole tubing conveys the fiber suspension downhole. The first downhole tubing has nozzles through which the emulsion passes into the second downhole tubing and the emulsion and the fiber suspension mix. The mixture exits the second downhole tubing through ports at a desired location in the wellbore. | 04-21-2016 |
| 20160115366 | ENGINEERED BEAD SLURRIES FOR USE IN LIGHTWEIGHT CEMENT SLURRIES AND METHODS RELATING THERETO - Engineering bead slurries may be useful in producing lightweight cement slurries for use in subterranean cementing operations. For example, a method may include engineering a bead slurry to have a shelf-life of about 1 month or greater by performing at least one of (1) calculating the shelf-life for the bead slurry and (2) calculating a minimum yield point required to prevent a lightweight bead of the bead slurry from floating or settling in the bead slurry; wherein the bead slurry comprises a gelled base fluid and a plurality of lightweight beads having a specific gravity of about 0.8 or less; producing the bead slurry; mixing the bead slurry and a cement slurry to yield a lightweight cement slurry; introducing the lightweight cement slurry into a wellbore penetrating a subterranean formation; and allowing the lightweight cement slurry to set therein. | 04-28-2016 |
| 20160130495 | SPACER FLUID HAVING SIZED PARTICULATES AND METHODS OF USING THE SAME - A spacer fluid contains one or more hydratable polymeric viscosifying agents having a particle size distribution such that a minimum of 90% of the particulates are retained on a 20 mesh screen. The spacer fluid may further contain one or more surfactants, viscosity thinners, organic solvents, weighting materials, suspending agents and antifoaming agents. The spacer fluid may be used to position a first fluid into a wellbore annulus of a wellbore containing a second fluid. The spacer fluid may further be used to fluidly isolate at least a portion of a wellbore annulus in a wellbore containing an oil-based drilling mud and an aqueous cement slurry. | 05-12-2016 |
| 20160138364 | WETTABILITY ALTERING FLUIDS DURING DOWNHOLE OPERATIONS - A method relating to perforation operations, which comprises introducing a wettability altering fluid into a wellbore extending into a subterranean formation such that the wettability altering fluid seeps into the subterranean formation. Subsequent to introducing the wettability altering fluid, a fluid loss pill is introduced into the wellbore such that seepage of fluid between the wellbore and the subterranean formation is inhibited. | 05-19-2016 |
| 20160160107 | Controlling Flow in Downhole Operations - Systems and methods for controlling flow in downhole operations are described. Systems and methods may include a composition including a fracturing fluid base; one or more ionic compounds; a polymer; a crosslinking agent; and a pH modifier. A breaker may be provided in the composition. The composition may be provided to a formation to control flow, and syneresis may occur. | 06-09-2016 |
| 20160168968 | CONTROLLING FRACTURE GEOMETRY WITH THE USE OF SHRINKABLE MATERIALS | 06-16-2016 |
| 20160177166 | SEALANT COMPOSITIONS FOR USE IN SUBTERRANEAN FORMATION OPERATIONS | 06-23-2016 |
| 20160177661 | HIGH STRENGTH, FLOWABLE, SELECTIVELY DEGRADABLE COMPOSITE MATERIAL AND ARTICLES MADE THEREBY | 06-23-2016 |
| 20160194244 | Activation of Set-Delayed Cement Compositions by Retarder Exchange | 07-07-2016 |
| 20160194546 | METHODS OF FLUID LOSS CONTROL | 07-07-2016 |
| 20160251563 | WATER BLOCKAGE AGENTS USING HYDROLYZED CANOLA PROTEIN HYDROGELS | 09-01-2016 |
| 20170233631 | SELF SEALING FLUIDS | 08-17-2017 |
| 20170233635 | CRACK-RESISTANT CEMENT COMPOSITION | 08-17-2017 |
| 20180022980 | USE OF CSH-SEED MODIFIED FIBERS IN OIL FIELD APPLICATIONS | 01-25-2018 |
| 20180022982 | METHODS AND COMPOSITIONS FOR REDUCING WATER PRODUCTION IN FRACTURES OR VOIDS IN SUBTERRANEAN FORMATIONS | 01-25-2018 |
| 20190144730 | Loss Circulation Material for Seepage to Moderate Loss Control | 05-16-2019 |
| 20190144731 | Loss Circulation Material for Seepage to Moderate Loss Control | 05-16-2019 |
