| Entries |
| Document | Title | Date |
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| 20080242563 | Zirconium-based cross-linker compositions and their use in high pH oil field applications - A cross-linking composition which comprises (a) an aqueous liquid, (b) a cross-linkable organic polymer, and (c) a solution comprising a zirconium cross-linking agent which comprises a zirconium complex having a molar ratio of 1:2 to 1:4 of zirconium to triethanolamine and a molar ratio of 1:0.1 to 1:1 of zirconium to N,N,N′,N′-tetrakis-(2-hydroxypropyl)-ethylene diamine. The composition can be used in oil field applications for hydraulic fracturing and plugging of permeable zones and leaks in subterranean formations. | 10-02-2008 |
| 20080280788 | Well Treatment with Ionic Polymer Gels - Methods comprising preparing an aqueous mixture of an anionic polymer, a charge screening surfactant, and a borate crosslinker, wherein the mixture has a conductivity less than 10 mS/cm, injecting the mixture down a wellbore, and gelling the mixture. An embodiment of the aqueous mixture can also include tetramethylammonium chloride as a clay stabilizer and a metal crosslinker such as a complex of zirconium and an amino acid ligand system. An embodiment can effectively provide borate crosslinking of an anionic polymer in a low-ionic-strength fluid system, without sacrificing ultimate gel strength or thermal persistence of the metal crosslinked polymer. | 11-13-2008 |
| 20080287323 | Treatment and Reuse of Oilfield Produced Water - The invention discloses treatment and reuse of oilfield produced water. A method of inhibiting enzymes/bacteria in an aqueous medium for viscosification comprises contacting the aqueous medium with a denaturant and/or a bactericide and thereafter mixing a gelling agent in the aqueous medium. The viscosified fluid can be used as a well treating fluid for fracturing and other applications. A well treatment fluid comprises a metal denaturant and/or a bactericide and a gelling agent in an amount effective to viscosify the fluid. Also disclosed is oilfield produced water denatured with from 1 to 2000 ppm by weight of a zirconium compound. | 11-20-2008 |
| 20090023613 | Polysaccharide Treatment Fluid and Method of Treating a Subterranean Formation - A treatment fluid for treating a subterranean formation penetrated by a wellbore is formed from an aqueous medium, a diutan heteropolysaccharide having a tetrasaccharide repeating unit in the polymer backbone and a peroxide breaker. A method of treating a subterranean formation penetrated by a wellbore may be carried out by introducing the treatment fluid into the formation through the wellbore. Breaking aids or catalysts may also be used with the treatment fluid. | 01-22-2009 |
| 20090062156 | Methods of treating a subterranean formation including a biocidal treatment - A method of treating a subterranean formation including with a bactericidal fluid is provided. The method comprises the steps of: (a) continuously mixing to obtain a stream of a treatment fluid: (i) a base fluid comprising water; (ii) an aqueous solution comprising a hypochlorite having a pH equal to or greater than 7; and (iii) a pH-adjusting agent selected to be capable of lowering the pH of water to less than 7; and (b) injecting the treatment fluid into a wellbore. The step of continuously mixing the base fluid, the aqueous solution of hypochlorite, and the pH-adjusting agent is preferably under conditions and in proportions sufficient to obtain a stream of a treatment fluid having a free chlorine concentration of at least 1 ppm by weight of the water in the treatment fluid and having a pH in the range of 4-7. | 03-05-2009 |
| 20090082228 | Viscosity Reduction - A well treatment fluid and method uses an organic peroxide. An activator embodiment can lower an effective concentration of the peroxide to break the fluid. A weight ratio of activator:organic peroxide can be at least about 1:20 in one well treatment fluid embodiment. A peroxyester breaker embodiment can be used in a well treatment fluid and method. A breaker delay agent embodiment can control the polymer break window in a well treatment fluid and method using an organic peroxide. A breaker package embodiment used in a well treatment fluid and method can include an organic peroxide and an amine breaker delay agent having the formula RR | 03-26-2009 |
| 20090082229 | Process for Drying Boron-Containing Minerals and Products Thereof - Processes for the rapid and efficient drying of boron-containing compounds, in particular boron-containing minerals and ores, are described, as well as the products which result from such processes. The process comprises the steps of providing a boron-containing material; introducing the boron-containing material into a pre-heated furnace; heating the boron-containing material in the furnace at a temperature between about 800° F. and 1000° F.; retaining the boron-containing material within the furnace for a time ranging from about 5 minutes to about 120 minutes; and removing the boron-containing material from the furnace and allowing it to cool to ambient temperature. Optionally, the process may also comprise one or more steps of grinding and/or sizing the boron-containing material to a specific particle size prior to the introduction of the material to a furnace. The boron-containing compounds that can be processed in this manner include both naturally-occurring and/or synthetic boron-containing materials, in particular boron-containing minerals and ores such as colemanite, ulexite, probertite, kernite, and mixtures thereof. | 03-26-2009 |
| 20090088347 | Treatment Fluid with Non-Symmetrical Peroxide Breaker and Method - A treatment fluid composition for treating a subterranean formation penetrated by a wellbore is formed from an aqueous fluid, a hydratable polymer and a water-soluble, non-symmetrical, inorganic peroxide breaking agent, which is capable of undergoing heterolytical cleavage. A method of treating a subterranean formation penetrated by a wellbore may also be performed by forming a treatment fluid from an aqueous hydrated polymer solution. This is combined with a water-soluble, non-symmetrical, heterolytically cleavable inorganic peroxide breaking agent. The treating fluid is introduced into the formation. An optional crosslinking agent capable of crosslinking the polymer may also be included. | 04-02-2009 |
| 20090181866 | Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations - An embodiment of the present invention includes a method comprising introducing a cyclodextrin modifier into a well bore penetrating a subterranean formation. Another embodiment of the present invention includes a method of reducing viscosity of a treatment fluid comprising contacting a treatment fluid comprising a base fluid and a viscosifying agent with at least a cyclodextrin modifier wherein the cyclodextrin modifier interacts with the viscosifying agent to reduce viscosity of the treatment fluid. Another embodiment of the present invention includes a method of increasing viscosity of an aqueous fluid comprising contacting at least a hydrophobically modified polymer and a cyclodextrin modifier in the presence of at least the aqueous fluid, wherein the cyclodextrin modifier interacts with the hydrophobically modified polymer to viscosify the aqueous fluid. Another embodiment of the present invention includes a subterranean treatment fluid comprising a base fluid and a cyclodextrin modifier. | 07-16-2009 |
| 20090192055 | Stabilized aqueous polymer compositions - The aqueous polymer composition comprises a water soluble polymer having a molar weight of at least 10 | 07-30-2009 |
| 20090247430 | Elongated particle breakers in low pH fracturing fluids - A method is given for the delayed breaking of a low pH fracturing fluid with acid-generating degradable elongated particles as a breaker for borate-crosslinked polymers. The shape, size, chemical composition and concentration of the elongated particles are used to control the period of delay before the polymer viscosity is broken. | 10-01-2009 |
| 20090270280 | Water-in-Oil Emulsions With Hydrogel Droplets Background - Methods and compositions are provided that include a water-in-oil composition comprising an oil-based continuous phase and a discontinuous phase that comprises at least a plurality of hydrogel droplets and a method comprising providing a water-in-oil emulsion comprising an oil-based continuous phase and a discontinuous phase that comprises at least a plurality of hydrogel droplets; and placing the water-in-oil emulsion in a well bore penetrating a subterranean formation. Additional methods are also provided. | 10-29-2009 |
| 20090325825 | Method of Minimizing or Reducing Salt Deposits By Use of a Fluid Containing a Fructan and Derivatives Thereof - The amount of crystallized salt in an oil and/or gas well may be minimized or reduced by use of a fructan, such as inulin, or a derivative as a salt block inhibitor. A preferred salt inhibitor is the salt of carboxyalkyl inulin such as a sodium salt of carboxymethyl inulin. The salt block inhibitor may be adsorbed onto a water-insoluble adsorbent. | 12-31-2009 |
| 20100056401 | PARTIALLY NEUTRALIZED POLYHYDROXY ACIDS FOR WELL TREATMENTS - This relates to a method and composition for forming and utilizing a fluid in the oilfield services industry including exposing a polyacid and/or polyacid derivative to a preparation method, introducing the prepared polyacid and/or polyacid derivative to a fluid to form a treatment fluid, and treating a subterranean formation and/or a wellbore with the treatment fluid, wherein the viscosity of the treatment fluid is not observably reduced by introducing the prepared polyacid and/or polyacid derivative to a treatment fluid. This also relates to a method and composition for use in the oil field services industry including a prepared polyacid and/or polyacid derivative, a fluid, and a viscosity control agent, wherein the viscosity of the composition is not observably lower than if the prepared polyacid and/or polyacid derivative were not present. | 03-04-2010 |
| 20100056402 | Acid Internal Breaker for Viscoelastic Surfactant Fluids in Brine - Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Acidic internal breakers such as sulfuric acid and nitric acid are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger. | 03-04-2010 |
| 20100160188 | Removal of Crystallinity in Guar Based Materials and Related Methods of Hydration & Subterranean Applications - Methods which include hydrating a crystalline polymeric material in a first liquid medium, precipitating the polymeric material to form an amorphous polymeric material, and combining amorphous polymeric material with a second liquid medium to form a treatment fluid. Alternative methods include hydrating a crystalline polymeric material in a first liquid medium, precipitating the polymeric material to form a lower crystalline form of the polymeric material, and combining the lower crystalline form of polymeric material with a second liquid medium to form a treatment fluid. | 06-24-2010 |
| 20100204068 | Methods for controlling depolymerization of polymer compositions - A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment by controlling the pH of the composition, and use of such methods in oilfield applications. | 08-12-2010 |
| 20100216673 | Methods and Compositions of Controlling the Rheology of a Diutan-Containing Well Treatment Fluid at High Temperatures - The invention provides a method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of formulating a treatment fluid and introducing the treatment fluid through the wellbore. The treatment fluid comprises water; diutan; and a sufficient amount of salt to increase the density of the treatment fluid to at least 8.5 lb/gal, wherein at least 50% by weight of the salt is selected from the group consisting of: bromide salts, non-bromide salts having a higher salting-in effect than bromide according to the Hofmeister series as measured by the salt's effect on the cloud point of poly(ethylene oxide) that has a molecular weight of 4×10 | 08-26-2010 |
| 20100222242 | PERACID OIL-FIELD VISCOSITY BREAKER AND METHOD - Aqueous well treatment fluid compositions are disclosed comprising an aqueous fluid containing polymer or copolymer for modifying fluid viscosity of the aqueous fluid and, in addition, an agent for effecting a controlled reduction in the aqueous fluid viscosity in a subterranean environment. The viscosity-reducing agent comprises a dilute concentration of peracetic acid. A method of using such compositions in oil- and gas-field treatment operations is also disclosed. | 09-02-2010 |
| 20100248997 | Treatment and Reuse of Oilfield Produced Water For Operations In A Well - The invention discloses method of treatment and reuse of oilfield produced water. The method comprises: providing an aqueous medium comprised at least in part of oilfield produced water; contacting the aqueous medium with a zirconium compound; whereby the fluid viscosity and/or fluid drag reduction ability of the combination of the aqueous medium and zirconium compound is improved compared to the aqueous medium alone; introducing the combination in to the well; and allowing the combination to contact the formation. In another embodiment, the aqueous medium is further contacted by a friction-reduction additive. Still in another embodiment, the aqueous medium is further contacted by a gelling additive. Still in another embodiment, the fluid is energized with a gas. | 09-30-2010 |
| 20100248998 | PROCESS FOR THE PRODUCTION OF A GRANULE OF A COATED OXIDIZING COMPOUND SUCH GRANULE AND USES OF THE GRANULE - The invention provides a process for the production of a granule of a coated oxidizing compound which granule has good delayed release properties, said process comprising a) providing cores of an oxidizing compound produced by fluidized bed spray granulation, b) spraying on the oxidizing compound cores an aqueous solution of metal sili-cate in a fluidized bed, said aqueous solution comprising at least 15% by weight metal silicate, and c) drying to form a metal silicate coating layer on the oxidizing compound core, provided that the amount of metal silicate coating layer is at least 8%, preferably at least 10% by weight based on the total weight of the granule. The invention also provides such granule and well treatment fluids including such granule, and processes for use. | 09-30-2010 |
| 20100323928 | Method of creating a carbon dioxide hydrate - A method of creating a carbon dioxide hydrate is disclosed. The preferred steps include supplying liquid carbon dioxide and a dissociation agent to a hydrocarbon hydrate, decomposing the hydrocarbon hydrate by the dissociation agent into a hydrocarbon gas and liquid water, and forming the carbon dioxide hydrate from the liquid carbon dioxide and the liquid water. The dissociation agent preferably is at least one of an inorganic salt, a surface active agent, a hydrate inhibitor, and an absorption solution. Furthermore, a substance composition of liquid carbon dioxide and the dissociation agent is described, which is provided for depositing carbon dioxide hydrate in a subterranean geological formation. Furthermore, a deposition device is described, which is configured for depositing carbon dioxide hydrate in a subterranean geological formation. | 12-23-2010 |
| 20110015100 | Method of Treating Subterranean Formations with Carboxylated Guar Derivatives - The production of hydrocarbons from a subterranean formation is enhanced by use of a well treatment fluid which contains a carboxylated guar which may be prepared by reacting a guar source and a derivatizing agent of the formula X(CH | 01-20-2011 |
| 20110028354 | Method of Stimulating Subterranean Formation Using Low pH Fluid Containing a Glycinate Salt - Hydraulic fracturing is conducted by use of a well treatment fluid which contains a guar gum derivative as viscosifying or gelling polymer, an organic zirconate complex of a zirconium metal and an alkanol amine as crosslinking agent and a salt of a hydroxylated glycine as crosslinking delaying agent. The fluid is characterized by a low pH, generally greater than or equal to 3.0 and less than or equal to 5.0. | 02-03-2011 |
| 20110166050 | TREATMENT AND REUSE OF OILFIELD PRODUCED WATER - The invention discloses treatment and reuse of oilfield produced water. A method of inhibiting enzymes/bacteria in an aqueous medium for viscosification comprises contacting the aqueous medium with a denaturant and/or a bactericide and thereafter mixing a gelling agent in the aqueous medium. The viscosified fluid can be used as a well treating fluid for fracturing and other applications. A well treatment fluid comprises a metal denaturant and/or a bactericide and a gelling agent in an amount effective to viscosify the fluid. Also disclosed is oilfield produced water denatured with from 1 to 2000 ppm by weight of a zirconium compound. | 07-07-2011 |
| 20110257050 | DRY BLEND FRACTURING FLUID ADDITIVES - A method and composition for crosslinking a polymer based fluid includes providing a dry blend of crosslinker and delay agent. The crosslinker and delay agent are mixed and granulated in a dry form prior to addition to the polymer fluid. | 10-20-2011 |
| 20110287983 | TREATMENT FLUIDS MADE OF HYDANTOIN DERIVATIVES FOR OPERATIONS IN A WELL - The invention discloses a method comprising providing a fluid comprising a viscosifying agent in an aqueous medium; contacting the fluid with a N-halogenated derivative of hydantoin; whereby the viscosity of the fluid with the N-halogenated derivative of hydantoin is reduced compared to the viscosity of the fluid alone; and introducing the fluid into a well. The N-halogenated derivative of hydantoin can be dichlorodimethylhydantoin (DCDMH), bromochlorodimethylhydantoin (BCDMH), or dibromodimethylhydantoin (DBDMH). The N-halogenated derivative of hydantoin can be 1,3-Dichloro-5,5-dimethylhydantoin or 1,3-Dibromo-5,5-dimethylhydantoin. | 11-24-2011 |
| 20120004147 | COATED PARTICLES OF A CHELATING AGENT - The present invention relates to a coated particle including a particle including at least one chelating agent of the formula COOH—CHX—N—(CH | 01-05-2012 |
| 20120129737 | HETEROGENEOUS PROPPANT PLACEMENT IN A FRACTURE WITH REMOVABLE CHANNELANT FILL - A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant and a channelant through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands spaced apart by the channelant, and removing the channelant filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant in the treatment fluid. | 05-24-2012 |
| 20120225800 | HYDRAULIC FRACTURE COMPOSITION AND METHOD - A method for improving hydraulic fracturing creates coated proppants containing one or more chemical constituents bonded to a substrate and introduced into the fracturing fluid itself. The substrate that eventually acts as a proppant may be sand, ceramic, resin coated sand, and other materials. Typically, the materials that are coated as powders adhered to the substrate may include friction reducers, biosides, oxygen scavengers, clay stabilizers, scale inhibitors, gelling agents, or the like. By adhering solid materials to a substrate | 09-06-2012 |
| 20120231981 | Proppant Particles Formed From Slurry Droplets and Method of Use - Proppant material for hydraulic fracturing is provided. The particles of the proppant are formed by drip casting. A slurry of finely divided ceramic particles is flowed through nozzles and formed into droplets under the influence of vibration. Uniform sized, smooth surface, spherical green particles are formed. The green particles are dried and sintered to form the proppant. The proppant is used in the process of hydraulic fracturing of wells. | 09-13-2012 |
| 20120270759 | METHODS AND COMPOSITIONS FOR ENHANCING GUAR HYDRATION RATES AND PERFORMING GUAR DERIVATIZATION REACTIONS - Methods are provided that include, but are not limited to, methods of treating guar splits comprising: exposing guar splits to a treatment chemical to create treated guar splits, wherein the treatment chemical comprises at least one treatment chemical selected from the group consisting of: an aqueous salt solution; a caustic solution, and a derivatizing agent; and grinding the treated guar splits to create ground, treated guar splits. | 10-25-2012 |
| 20120277128 | FLUIDS COMPRISING CHITOSAN CROSSLINKED BY TITANATE - The current application discloses fluids and methods for treating a subterranean formation penetrated by a wellbore. In one aspect, there is provided a fluid comprising chitosan and titanate, where the fluid has an increased viscosity compared with a solution containing chitosan without titanate. In another aspect, there is provided a method of using such fluid to treat a subterranean formation penetrated by a wellbore. The method may comprise mixing chitosan and titanate in a carrying medium, forming a gel comprising chitosan and titanate, introducing the gel into a subterranean formation, and treating the subterranean formation with the gel. | 11-01-2012 |
| 20130005615 | OPTIMIZED ENHANCED OIL RECOVERY METHOD WITH POLYMER PRESERVATION THROUGH SACRIFICIAL COMPOUND ADDITION - The invention relates to an improved enhanced recovery method using polymers, wherein these polymers are preserved from mechanical degradation by adding an additive comprising sacrificial compounds. The sacrificial compounds are preferentially degraded instead of the active polymers, thus allowing optimized recovery of the oil in the petroleum reservoir. The sacrificial compounds can be polymers of same nature as the active polymers, but of higher molecular weight, or polymers of different nature having more fragile bonds. The sacrificial compound(s) is/are selected according to a lesser resistance to mechanical degradation, in comparison with the active polymers of the solution allowing enhanced recovery. | 01-03-2013 |
| 20130165352 | Well Treatment Fluid Compositions and Methods of Use That Include a Delayed Release Percarbonate Formulation - A well treatment fluid and method of use includes water, at least one hydratable polymer, an optional crosslinking agent, and a delayed release percarbonate formulation effective to reduce initial viscosity of the fluid after a period of time. Also disclosed are processes for fracturing a subterranean formation. | 06-27-2013 |
| 20130203637 | METHOD OF DELAYING CROSSLINKING IN WELL TREATMENT OPERATION - Crosslinking of a crosslinkable viscosifying agent and a crosslinking agent may be delayed in a well treatment fluid by incorporated within the fluid a glutamic-N,N-diacetic acid salt, such as a glutamic-N,N-diacetic acid sodium salt like tetrasodium glutamate diacetate. The crosslinking agent may be a zirconium containing crosslinking agent like zirconium (IV) acetyl acetonate. The viscosifying agent may be guar or a guar derivative such as carboxyalkyl guars and hydroxyalkylated guars like carboxymethyl guar, hydroxypropyl guar, hydroxyethyl guar, hydroxybutyl guar and carboxymethylhydroxypropyl guar. | 08-08-2013 |
| 20130274152 | POLYSACCHARIDE SLURRIES WITH ENVIRONMENTALLY FRIENDLY ACTIVATOR SOLVENTS - A stable polysaccharide particle suspension composition comprising: a carrier; an activator solvent comprising a) at least one dibasic methyl or ethyl ester; b) at least one compound of the formula R | 10-17-2013 |
| 20130324445 | Microemulsion and Nanoemulsion Breaker Fluids With Organic Peroxides - Incorporating at least oil-soluble organic peroxide into a mixture of an aqueous phase and at least one surfactant creates a breaker fluid that is a microemulsion or a nanoemulsion that can then perform as an internal breaker for reducing the viscosity of aqueous fluids gelled with a polymer, such as a crosslinked polysaccharide. One phase of the breaker fluid is water or water-based, e.g. brine, containing at least one oil-soluble organic peroxide as a non-aqueous internal phase that will, over time and optionally with heat, break the polymer-gelled portion of the gel. The overall breaking using the breaker fluid is slower as compared to introducing the organic peroxide breaker in a non-microemulsified or non-nanoemulsified form. | 12-05-2013 |
| 20140057814 | GUM ARABIC ENCAPSULATION OF REACTIVE PARTICLES FOR ENHANCED DELIVERY DURING SUBSURFACE RESTORATION - The present invention relates to emulsion compositions comprising iron particles (e.g., nanoscale zero valent iron particles) and methods of use thereof for remediation of contaminated environmental sites (e.g., contaminated subsurface environments). | 02-27-2014 |
| 20140057815 | METHODS AND COMPOSITIONS FOR ENHANCING GUAR HYDRATION RATES AND PERFORMING GUAR DERIVATIZATION REACTIONS - Methods are provided that include, but are not limited to, methods of treating guar splits comprising: exposing guar splits to a treatment chemical to create treated guar splits, wherein the treatment chemical comprises at least one treatment chemical selected from the group consisting of: an aqueous salt solution; a caustic solution, and a derivatizing agent; and grinding the treated guar splits to create ground, treated guar splits. | 02-27-2014 |
| 20140148369 | Methods of Treating a Subterranean Formation with Friction Reducing Clays - Methods of treating a subterranean formation including providing a treatment fluid comprising an aqueous base fluid and a friction reducing clay; wherein the friction reducing synthetic clay is a phyllosilicate clay selected from the group consisting of a phyllosilicate smectite group clay; a phyllosilicate serpentine group clay; a phyllosilicate pyrophyllite-talc group clay; a phyllosilicate mica group clay; a phyllosilicate chlorite group clay; and any combinations thereof; and placing the treatment fluid into the subterranean formation. | 05-29-2014 |
| 20140155305 | THICKENING OF FLUIDS - An aqueous solution comprising a thickening polymer with diol groups distributed along it, such as guar or other polysaccharide, is cross linked with a cross-linker which contains a plurality of boroxole groups of the partial formula | 06-05-2014 |
| 20140221256 | LOW-TEMPERATURE BREAKER FOR WELL FLUID VISCOSIFIED WITH A POLYACRYLAMIDE - A method for treating a zone of a well with a viscosified fluid is provided, wherein the fluid is adapted to break in the well. The method includes the steps of: (A) introducing a well fluid into the zone of the well, wherein the well fluid includes: (i) a water phase; (ii) a water-soluble polymer in the water-phase; and (iii) a source of a hydroxylamine or salt thereof; and (B) allowing the viscosity of the well fluid to break in the zone. | 08-07-2014 |
| 20140243246 | HYDRAULIC FRACTURE COMPOSITION AND METHOD - A method for improving the performance of fracturing processes in oil production fields may rely on polymer coated particles carried in the fracturing fluid. The particles may include heavy substrates, such as sand, ceramic sand, or the like coated with polymers selected to absorb water, increasing the area and volume to travel more readily with the flow of fluid without settling out, or allowing the substrate to settle out. Ultimately, the substrate may become lodged in the fissures formed by the pressure or hydraulic fracturing, resulting in propping open of the fissures for improved productivity. | 08-28-2014 |
| 20140256603 | Alkyl Polyglycoside Derivative as Biodegradable Spacer Surfactant - A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well. | 09-11-2014 |
| 20140274817 | METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS - Methods and compositions for stimulating of the production of hydrocarbons (e.g., formation crude oil and/or formation gas) from subterranean formations are provided. In some embodiments, the compositions are emulsions or microemulsions, which may include water, a terpene, and a surfactant. In some embodiments, methods of selecting a composition for treating an oil or gas well are provided. | 09-18-2014 |
| 20140303046 | Wellbore Servicing Materials and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a viscosifying polymeric material, a breaking agent comprising an inorganic peroxide of a divalent metal M(II) characterized by the general formula MO | 10-09-2014 |
| 20140303047 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising (i) a breaking agent, a breaking agent precursor, or combinations thereof, wherein the breaking agent comprises a sugar acid and (ii) an aqueous base fluid, and contacting the wellbore servicing fluid with a filter cake in the wellbore and/or subterranean formation. | 10-09-2014 |
| 20140329724 | Crosslinking Chitosan for Reducing Permeability in a Well - A composition including: (a) an aqueous phase; (b) a chitosan-based compound dispersed or dissolved in the aqueous phase; and (c) a crosslinker dispersed or dissolved in the aqueous phase, wherein the crosslinker has at least two functional groups independently selected from the group consisting of aldehyde, carboxylic acid, and carboxylate. A method including the step of introducing a composition according to the invention into a treatment zone of a well. | 11-06-2014 |
| 20140349897 | Treatment Fluids with Non-Oxidizer Class Inorganic Peroxide Polymer Breakers and Methods of Use Thereof - A treatment fluid composition for treating a subterranean formation penetrated by a well bore is formed from an aqueous fluid, a hydratable polymer and an inorganic peroxide breaking agent, which is classified as a stable, non-oxidizer according to UN standards but which retains oxidizing properties as measured by the content of available oxygen. A method of treating a subterranean formation penetrated by a well bore may also be performed by forming a treatment fluid from an aqueous hydrated polymer solution. This is combined with a stable, inorganic peroxide breaking agent. The treating fluid is then introduced into the formation. An optional crosslinking agent capable of crosslinking the polymer may also be included. | 11-27-2014 |
| 20140364343 | Produced Water Borate Crosslinking Compositions and Method of Use - A composition and method for treating a fracturing fluid comprising produced water with high levels of dissolved solids using a polymer crosslinked with a boron compound and a high pH alkylamine buffer. The composition improves the viscosity stability of the fracturing fluid at elevated bottom-hole temperatures, particularly when the fluid has high levels of calcium and magnesium. The composition is particularly useful with polysaccharides, including galactomannan gums, such as guar gum, locust bean gum, and karaya gum, and allows for the use of the preferred boron compound crosslinkers in high total dissolved solids fracturing fluids without the pH destabilization problems encountered with the prior art. | 12-11-2014 |
| 20140371114 | FAR FIELD DIVERSION TECHNIQUE FOR TREATING SUBTERRANEAN FORMATION - Diverting compositions for treating a subterranean zone substantially distanced from a wellbore, comprising: a carrier fluid; and a particulate, partially dehydrated or anhydrous borate source material that does not substantially swell when placed in contact with the carrier fluid. The carrier fluid is capable of carrying and placing the borate source material into a stimulation network substantially distanced from a wellbore, and wherein the borate source material is dissolvable through sufficient contact with an aqueous fluid. The carrier fluid is a water-miscible non-aqueous fluid selected from the group consisting of ethylene glycol, propylene glycol, N,N-dimethylformamide, tetrahydrofuran, dichloromethane, 1,4-dioxane, dimethylsulfoxide, tetramethylenesulfone, acetonitrile, hexamethylphosphoramide, 1,3-methyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone, propylene carbonate, ethylene carbonate, and combinations thereof. | 12-18-2014 |
| 20140378353 | Inhibiting Salting Out of Diutan or Scleroglucan in Well Treatment - A fluid viscosified with diutan or scleroglucan is provided for use in a well, the fluid including: (i) water; (ii) one or more salts selected from the group consisting of alkali metal halide salts, alkaline earth metal halide salts, and any combination thereof; (iii) a viscosifier selected from the group consisting of diutan, a diutan derivative, scleroglucan, a scleroglucan derivative, and any combination thereof; and (iv) a delayed-release source of a weak acid; wherein the initial pH of the fluid is at least 6. In addition, a method of treating a portion of a well includes the steps of: (A) forming such a fluid; and (B) introducing the fluid into the portion of the well. The fluid has rheological properties that can be adapted, for example, to well treatments such as gravel packing at higher temperature and in higher density brines while avoiding salting out of the viscosifier. | 12-25-2014 |
| 20150051121 | SLURRY CONCENTRATE AND ASSOCIATED METHODS OF USE - The invention relates to a slurry concentrate which contains a viscosity enhancing polymer and organohectorite clay, which exhibits an unexpected improvement in viscosity and syneresis while exhibiting improved safety characteristics. | 02-19-2015 |
| 20150080272 | Alkyl Polyglycoside Derivative As Biodegradable Spacer Surfactant - A spacer fluid comprising: (a) water; and (b) an alkyl polyglycoside derivative, wherein the alkyl polyglycoside derivative is selected from the group consisting of sorbitan fatty acids; functionalized sulfonates, functionalized betaines, an inorganic salt of any of the foregoing, and any combination of any of the foregoing. Preferably, the spacer fluid additionally comprises a solid particulate, such as a weighting agent. A method of displacing an oil-based drilling mud from a portion of a well comprising the steps of: (A) forming the spacer fluid; and (B) introducing the spacer fluid into the well. | 03-19-2015 |
| 20150119300 | BIODEGRADABLE NON-ACIDIC OIL-IN-WATER NANOEMULSION - Formulation for a natural product as a replacement for the use of traditional acidic chemical stimulation methods for the emulsification, removal and release of paraffin and asphaltenes from low producing or pumped off wells and reservoirs with the use of traditional methodologies. Also a method of use of formulation for stimulating an oil well consisting of introducing into the wellbore a biodegradable, non-reactive fluid system containing a water-miscible fatty acid solvent, a solution of fatty acids, an amino alcohol, and at least one non-ionic surfactant. The fluid system may be further in the form of a nanoemulsion that is formed by combining a colloidal solution with one or more emulsifiers, an alcohol, and water. The fluid system may be used in well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment. | 04-30-2015 |
| 20150133348 | GEL HYDRATION UNIT - A fracking fluid hydration unit is provided that has a plurality of hydration tank sections wherein shear is added to the hydrated fluid flow via a recirculation hydrated fluid jetting system. | 05-14-2015 |
| 20160009985 | PROMOTERS FOR PEROXIDES IN AQUEOUS TREATMENT FLUIDS | 01-14-2016 |
| 20160017211 | Methods, Systems, and Compositions for the Controlled Crosslinking of Well Servicing Fluids - Treating fluid compositions for use in hydrocarbon recovery operations from subterranean formations are described, as well as methods for their preparation and use. In particular, treating fluid compositions are described which comprise a liquid, a crosslinkable organic polymer material that is at least partially soluble in the liquid, a crosslinking agent that is capable of increasing the viscosity of the treating fluid by crosslinking the organic polymer material in the liquid, and a crosslinking modifier additive which can delay or accelerate the crosslinking of the treating fluid composition. Such compositions may be used in a variety of hydrocarbon recovery operations including fracturing operations, drilling operations, gravel packing operations, water control operations, and the like. | 01-21-2016 |
| 20160017212 | Methods, Systems, and Compositions for the Controlled Crosslinking of Well Servicing Fluids - Treating fluid compositions for use in hydrocarbon recovery operations from subterranean formations are described, as well as methods for their preparation and use. In particular, treating fluid compositions are described which comprise a liquid, a crosslinkable organic polymer material that is at least partially soluble in the liquid, a crosslinking agent that is capable of increasing the viscosity of the treating fluid by crosslinking the organic polymer material in the liquid, and a crosslinking modifier additive which can delay or accelerate the crosslinking of the treating fluid composition. Such compositions may be used in a variety of hydrocarbon recovery operations including fracturing operations, drilling operations, gravel packing operations, water control operations, and the like. | 01-21-2016 |
| 20160102238 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising cement, an aqueous fluid, and a cyclodextrin, a cyclodextrin derivative, or combination thereof; placing the wellbore servicing fluid in the wellbore and allowing the fluid to set. A wellbore servicing fluid comprising cement, aqueous fluid, and a cyclodextrin, cyclodextrin derivative, or combination thereof. | 04-14-2016 |
| 20160122623 | POLYMER COMPOSITIONS - A method for making a polymer suspension for use in enhancing the production of oil from a formation is disclosed. In one embodiment, the method comprises mixing a powder polymer having an average molecular weight of 0.5 to 30 Million Daltons into a water soluble solvent having an HLB of greater than or equal to 8 for less than or equal to 24 hours. The water soluble solvent is selected from a group, at a weight ratio from 20:80 to 80:20. The polymer suspension is stable, pumpable, and substantially anhydrous; and it is hydrated for an injection solution in less than or equal to 4 hours, containing a polymer concentration ranging from 100 ppm to 50,000 ppm and having a filter ratio of less than or equal to 1.5 at 15 psi using a 1.2 μm filter, by mixing a sufficient amount of the polymer suspension in an aqueous fluid. | 05-05-2016 |
| 20160168454 | METHOD OF CONTROLLING WATER PRODUCTION THROUGH TREATING PROPPANTS WITH RPMS | 06-16-2016 |
| 20160186038 | Curdlan Gel Based Heat-resistant Profile Control and Water Plugging Agent - The present invention relates to a curdlan gel based profile control and water plugging agent and methods of preparation thereof. Said profile control and water plugging agent consists of a microbial polysaccharides base and a delayed gelatinization agent; wherein said microbial polysaccharides base consists of curdlan gels and a hydrogen bond linkage force facilitation agent, or the curdlan gels and a coagulant aid. More specifically, the present invention relates to the profile control and water plugging agent that maintains its stable fluidity and relatively low viscosity under mid-to-high temperatures between 65° C. and 90° C. | 06-30-2016 |
