| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 507140000 | Contains inorganic component other than water or clay | 36 |
| 20080200350 | Process Fluid - A water-based, shear-thinning process fluid comprises bentonite, alumnium hydroxide particles, and salt. The median diameter (by weight) of the aluminium hydroxide particles does not exceed 2 μm. | 08-21-2008 |
| 20090005271 | REDUCED ABRASIVENESS WITH MICRONIZED WEIGHTING MATERIAL - A method of prolonging the average lifespan of downhole tools that includes circulating the wellbore fluid comprising a base fluid and at least one of a micronized weighting agent and a dispersant coated weighting agent through the wellbore; wherein the wellbore fluid is characterized as having at least one of an equivalent weight, an equivalent or lower settling rate, and an equivalent or lower sag than a baseline wellbore fluid comprising a base fluid and an API-grade barite weighting agent; and wherein the wellbore fluid reduces abrasive wear of the downhole tool as compared to drilling with the baseline wellbore fluid is disclosed. | 01-01-2009 |
| 20090186781 | Drilling fluids comprising sub-micron precipitated barite as a component of the weighting agent and associated methods - An embodiment of the present invention includes a method comprising circulating a drilling fluid in a well bore, wherein the drilling fluid comprises a carrier fluid; and a weighting agent that comprises precipitated barite having a weight average particle diameter below about 1 micron and a particle having a specific gravity of greater than about 2.6. Another embodiment of the present invention includes a drilling fluid comprising: a carrier fluid; and a weighting agent that comprises precipitated barite having a weight average particle diameter below about 1 micron, and a particle having a specific gravity of greater than about 2.6. Another embodiment of the present invention includes a weighting agent that comprises precipitated barite having a weight average particle diameter below about 1 micron, and a particle having a specific gravity of greater than about 2.6. | 07-23-2009 |
| 20090192052 | High Performance Drilling Fluids with Submicron-Size Particles as the Weighting Agent - Methods and compositions utilizing a drilling fluid comprising sub-micron precipitated barite having a weight average particle diameter below about 1 micron. Methods include a method comprising circulating a drilling fluid in a well bore, wherein the drilling fluid comprises: a carrier fluid; and a weighting agent that comprises sub-micron precipitated barite having a weight average particle diameter below about 1 micron are disclosed. In some embodiments, the drilling fluid may comprise an invert emulsion. In some embodiments, the sub-micron precipitated barite has a particle size distribution such that at least 10% of particles in the sub-micron precipitated barite have a diameter below about 0.2 micron, at least 50% of the particles in the of the sub-micron precipitated barite have a diameter below about 0.3 micron and at least 90% of the particles in the sub-micron precipitated barite have a diameter below about 0.5 micron. | 07-30-2009 |
| 20090258799 | WELLBORE FLUIDS POSSESSING IMPROVED RHEOLOGICAL AND ANTI-SAG PROPERTIES - A wellbore fluid that includes a base fluid; a weighting agent having a d | 10-15-2009 |
| 20090258800 | METHODS FOR MINIMIZING THE AMOUNT OF GRAPHITE PARTICLES USED DURING DRILLING OPERATIONS - Methods for minimizing the amount of graphite particles used during drilling operations | 10-15-2009 |
| 20110143969 | Cordierite Having An Increased alpha-Cordierite Phase And A Proppant Containing The Same - A cordierite material having an increased α-cordierite phase and a reduced β-cordierite phase is described. Methods of making the cordierite material are further described, and a proppant containing the cordierite is further described, as well as use of the proppant. | 06-16-2011 |
| 20120071370 | DEFOAMER FORMULATION AND METHODS FOR MAKING AND USING SAME - Defoamer compositions are disclosed and methods for making and using same, where the defoamer has universal applicability at low concentrations. The defoamer compositions include between 40 vol. % and about 80 vol. % distilled water (other waters may be used instead), 10 vol. % and about 30 vol. % of silicon anti-foam agent and between about 10 vol. % and about 30 vol. % of active silicon anti-foam agent. The defoamer compositions are used in amount of less than or equal to 200 ppm in all foamed downhole fluid systems. | 03-22-2012 |
| 20120129736 | HIGHLY OXIDIZED GRAPHENE OXIDE AND METHODS FOR PRODUCTION THEREOF - A highly oxidized form of graphene oxide and methods for production thereof are described in various embodiments of the present disclosure. In general, the methods include mixing a graphite source with a solution containing at least one oxidant and at least one protecting agent and then oxidizing the graphite source with the at least one oxidant in the presence of the at least one protecting agent to form the graphene oxide. Graphene oxide synthesized by the presently described methods is of a high structural quality that is more oxidized and maintains a higher proportion of aromatic rings and aromatic domains than does graphene oxide prepared in the absence of at least one protecting agent. Methods for reduction of graphene oxide into chemically converted graphene are also disclosed herein. The chemically converted graphene of the present disclosure is significantly more electrically conductive than is chemically converted graphene prepared from other sources of graphene oxide. | 05-24-2012 |
| 20120178651 | Clay Stabilization With Nanoparticles - A treating fluid may contain an effective amount of a particulate additive to stabilize clays, such as clays in a subterranean formation, by inhibiting or preventing them from swelling and/or migrating, where the particulate additive is an alkaline earth metal oxide, alkaline earth metal hydroxide, alkali metal oxide, alkali metal hydroxide, transition metal oxide, transition metal hydroxide, post-transition metal oxide, post-transition metal hydroxide, piezoelectric crystal, and/or pyroelectric crystal. The particle size of the magnesium oxide or other agent may be nanometer scale, which scale may provide unique particle charges that help stabilize the clays. These treating fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in hydraulic fracturing, completion fluids, gravel packing fluids and fluid loss pills. The carrier fluid used in the treating fluid may be aqueous, brine, alcoholic or hydrocarbon-based. | 07-12-2012 |
| 20120184468 | Composition and Method for Dissipating Heat Underground - A substantially sand-free, aqueous-based, bentonitic fluid comprising flaked graphite can help dissipate heat from operation of electrical lines buried underground. The fluid is used in drilling a borehole, such as in trenchless drilling, or in making a trench, for receiving and containing the lines. The fluid may also be applied directly to the outside and/or to the inside of pipe containing electrical lines. Thermal conductivities having values of about 1.6 to about 1.8 BTU/hr ft° F. or higher can be attained. | 07-19-2012 |
| 20120245059 | USE OF HIGH RATIO AQUEOUS ALKALI SILICATES IN DRILLING FLUIDS - An improved drilling and completion fluid can be used in subterranean drilling for oil and gas. Sodium silicate and potassium silicate-based drilling fluids are commonly used drilling fluids with the notable attributes of exceptional shale stabilization characteristics coupled with exceptional environmental performance Environmental and wellbore stabilization characteristics are improved by using high ratio aqueous silicates wherein ratio is defined as the molar ratio of SiO | 09-27-2012 |
| 20120277125 | MASTERBATCH FOR MANUFACTURING A DRILLING FLUID - An oil-based masterbatch in the form of granules containing carbon nanotubes. Also, a method for preparing an oil-based masterbatch in the form of granules containing carbon nanotubes. Also, the use of an oil-based masterbatch in the form of granules containing carbon nanotubes for manufacturing an aqueous or organic viscoelastic fluid, intended for drilling in underground formations. | 11-01-2012 |
| 20130130945 | Drilling Fluids Having Reduced Sag Potential and Related Methods - Invert emulsion drilling fluids that have extended emulsion stability and reduced sag potential can be realized through incorporation of colloidal particles therein. The invert emulsion drilling fluids can be free of organophilic clays. The organophilic clay-free drilling fluids can comprise: an oleaginous fluid continuous phase; an aqueous fluid internal phase; a surfactant; a weighting agent; and a plurality of colloidal particles, the colloidal particles comprising fibrous colloidal particles and at least one other type of colloidal particle; wherein at least a portion of the plurality of colloidal particles interact with the surfactant to form an associative supporting structure that inhibits sag of the weighting agent. | 05-23-2013 |
| 20130157903 | 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. | 06-20-2013 |
| 20140155302 | OIL WELL DRILLING FLUIDS, OIL WELL CEMENT COMPOSITION AND SLURRY OF WEIGHTING MATERIAL - The present invention relates to oil well drilling comprising a weighting agent consisting of microfine, particulate ilmenite having a FeTiO | 06-05-2014 |
| 20140187450 | Internal Breaker for Fluid Loss Control Pills and Method - A method of treating a subterranean formation. The method may include providing a fluid-loss control pill that comprises an aqueous base fluid, a gelling agent, and an internal breaker that is selected from the group consisting of inorganic delayed acids or inorganic salts. The method can include introducing the fluid-loss control pill into a subterranean formation, allowing the internal breaker to reduce the viscosity of the pill after a delay period, and allowing the fluid-loss control pill to break. | 07-03-2014 |
| 20140274816 | DRILLING FLUID ADDITIVE FOR LOSS CIRCULATION AND WELLBORE STRENGTHENING - A method for controlling the loss of drilling fluid from an oil well borehole into formations penetrated by a drill bit is disclosed by which resilient graphitic carbon particles having a resiliency greater than about 130% rebound after compression to 10,000 psi; a degree of graphitization greater than 85%, as measured by d002 using XRD; an average pore size larger than 0.035 micron; and an aspect ratio smaller than 0.63 are added to the drilling fluid. | 09-18-2014 |
| 20140336087 | DRILLING SOLUTIONS AND METHODS - A drilling fluid for discharging in a borehole to facilitate drilling operations, and hydraulic fracturing in particular, comprising amorphous silicas having a particle size ranging from about one to about ten nanometers and water, wherein the pH of the fluid is substantially neutral. | 11-13-2014 |
| 20140357534 | METHODS, APPARATUS, AND SENSORS FOR TRACING FRAC FLUIDS IN MINERAL FORMATIONS, PRODUCTION WATERS, AND THE ENVIRONMENT USING MAGNETIC PARTICLES - In some embodiments, the present invention pertains to methods of detecting a contamination of an environment by a fracture fluid that comprises magnetic particles. In some embodiments, such methods include: (1) collecting a sample from the environment; and (2) measuring a magnetic susceptibility of the sample in order to detect the presence or absence of the magnetic particles. Further embodiments of the present invention pertain to methods of tracing fracture fluids in a mineral formation. In some embodiments, such methods include: (1) associating the fracture fluids with magnetic particles; (2) introducing the fracture fluids into the mineral formation; and (3) measuring a magnetic susceptibility of the fracture fluids. Additional embodiments of the present invention pertain to fracture fluids containing the aforementioned magnetic particles, the actual magnetic particles, and methods of making said magnetic particles. | 12-04-2014 |
| 20150126415 | DRILLING FLUIDS WITH NANO AND GRANULAR PARTICLES AND THEIR USE FOR WELLBORE STRENGTHENING - There is described a drilling fluid for wellbore strengthening having nanoparticles and granular particles. In one aspect described herein, the drilling fluid is an invert emulsion based fluid. In a further aspect, the nanoparticles are iron hydroxide or calcium carbonate, and in a further aspect from about 1 to 30 nm in size. In one aspect described herein, the granular particles are graphite or calcium carbonate and in a further aspect, up to 250 μm in size. The nanoparticles and granular particles plug fractures in the wellbore to strengthen the wellbore. | 05-07-2015 |
| 20160009979 | NOVEL NANOPARTICLE-CONTAINING DRILLING FLUIDS TO MITIGATE FLUID LOSS | 01-14-2016 |
| 20160017201 | ELECTRICALLY CONDUCTIVE OIL-BASED FLUIDS - At least one petroleum coke may be added to an oil-based fluid to improve the electrical conductivity of the oil-based fluid. The oil-based fluid may be a drilling fluid, a completion fluid, a drill-in fluid, a stimulation fluid, a servicing fluid, and combinations thereof. In a non-limiting embodiment, the downhole fluid composition may be circulated in a subterranean reservoir wellbore. | 01-21-2016 |
| 20160152882 | CATALYTIC SYSTEM FOR BREAKER FLUID FORMULATIONS | 06-02-2016 |
| 20170233632 | ELECTRICALLY CONDUCTIVE OIL-BASED FLUIDS | 08-17-2017 |
| 507141000 | Inorganic component contains soluble potassium salt | 3 |
| 20120157355 | Phosphate Based Blend for Drilling and Completion Fluid - A drill-in and completion fluid for drilling through a producing zone in a subterranean formation or for completing a wellbore in a subterranean formation. The fluid comprises a blend of a phosphate brine and water. | 06-21-2012 |
| 20130210683 | Method for Drilling Using a Drilling and Completion Fluid Comprising a Phosphate Based Blend - A method for for drilling through a producing zone in a subterranean formation or for completing a wellbore in a subterranean formation, using a drill-in and completion fluid comprising a blend of a phosphate brine and water. | 08-15-2013 |
| 20130225457 | DRILLING FLUID AND METHOD FOR DRILLING IN COAL-CONTAINING FORMATIONS - A drilling fluid and method for drilling in a coal containing formation. The method includes: providing a mixed metal-viscosified drilling fluid including at least 1% potassium salt; circulating the drilling fluid through the well; and drilling into a coal seam. | 08-29-2013 |
| 507142000 | Inorganic component contains phosphorous | 1 |
| 20110124531 | Composition of Specifically Formulated Phosphate Salts, Used for Increasing Density of Completion Fluids, and as a Hi-Temperature and Easy to Use Completion Fluids in the Oil and Gas Industry - Improved compounds and methods for applications in the oil and gas industry are obtained by the disclosed compositions of phosphate salts. These salts have characteristics beneficial to the oil and gas industry for completion fluids, killing fluids, work-over fluids, drilling fluids and packer fluids. These features include high density (up to SG 2.50), low corrosiveness, stability, not subject to disturbance from formation reaction, not prone to precipitate, environmentally sound, capable of buffering pH, and the disclosed formulation is easy to mix in the field with the capability of increasing the density of existing completion fluids used. | 05-26-2011 |
| 507143000 | Inorganic component is elemental metal or alloy | 4 |
| 20120165231 | Drilling Fluids Having Reduced Sag Potential and Related Methods - Invert emulsion drilling fluids that have extended emulsion stability and reduced sag potential are described herein. The drilling fluids comprise an invert emulsion, a weighting agent, and a plurality of colloidal particles. The invert emulsion comprises an oleaginous fluid continuous phase, an aqueous fluid internal phase, and a surfactant. At least a portion of the plurality of colloidal particles interact with the surfactant to form an associative supporting structure that inhibits sag of the weighting agent. In some embodiments, the weighting agent comprises barite particles, particularly barite particles that are less than about 45 μm in size. Methods for placing the invert emulsion drilling fluids in a subterranean formation via a wellbore are also disclosed. | 06-28-2012 |
| 20130109597 | Nanoparticle Smart Tags in Subterranean Applications | 05-02-2013 |
| 20140080741 | FERROSILICON WEIGHTING AGENTS FOR WELLBORE FLUIDS - A weighting agent for use in a wellbore fluid composition is provided. The weighting agent includes a ferrosilicon material, wherein iron is present in the ferrosilicon material in an amount equal to or greater than about 50% by weight of the ferrosilicon material. A composition including a wellbore fluid and a weighting agent, as well as methods for using and making a weighting agent, are also provided. | 03-20-2014 |
| 20140094394 | High Density Weight Materials for Oil Field Servicing Operations - A wellbore treatment fluid comprising one or more high-density weighting materials selected from the group consisting of tungsten-containing materials, bismuth-containing materials, and tin-containing materials. | 04-03-2014 |
| 507145000 | Inorganic component is soluble in boring medium | 3 |
| 20090253593 | SOLID PRODUCT FOR PREPARING A DRILLING FLUID - A granulated calcium bromide product is provided, and a method for its manufacture. The product, obtained by wet granulation or by dry granulation, contains at least 80 wt. % calcium bromide, and it is particularly suitable for preparing dense calcium bromide brines used as a drilling fluid. | 10-08-2009 |
| 20140315764 | Reclaimed Oil - A method to reclaim and purify an oil bound to a substrate, and a reclaimed oil obtained thereby having, relative to the oil in the bound liquid in the substrate, a lower aromatic content, improved rheological properties, improved handling properties, or a combination thereof. | 10-23-2014 |
| 20170233630 | High Density Aqueous Well Fluids | 08-17-2017 |
