| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 02/05/2004 | WO2004011530A1 Silicone resin for drilling fluid loss control |
| 02/05/2004 | WO2003036021A3 Treating composition |
| 02/05/2004 | US20040023818 Hydrocarbon-producing well, in which particles are pumped into the well to promote the recovery of the hydrocarbons. The particles are coated with a water-repellent composition to prevent, or at least minimize, the coating or adsorption of |
| 02/05/2004 | US20040023817 Methods of using invertible oil external-water internal fluids in subterranean applications |
| 02/05/2004 | US20040023816 Hydraulic fracturing additive, hydraulic fracturing treatment fluid made therefrom, and method of hydraulically fracturing a subterranean formation |
| 02/05/2004 | US20040023815 Lost circulation additive, lost circulation treatment fluid made therefrom, and method of minimizing lost circulation in a subterranean formation |
| 02/05/2004 | US20040023814 Well kill treatment to prevent the intrusion of formation fluids into the wellbore while the well is open, a well kill additive including a dry mixture of water soluble crosslinkable polymer, a crosslinking agent, filter aid, and |
| 02/05/2004 | US20040023813 Additive for, treatment fluid for, and method of plugging a tubing/casing annulus in a well bore |
| 02/05/2004 | US20040023812 Fracturing a subterranean formation including injecting into a wellbore a fracturing fluid based on a liquid medium having a density higher than 1.3 g/cm3, thereby allowing the use of a surface pressure at least 10% smaller than the surface |
| 02/05/2004 | US20040020651 Well plug additive, well plug treatment fluid made therefrom, and method of plugging a well |
| 02/05/2004 | US20040020650 Conformance improvement additive, conformance treatment fluid made therefrom, method of improving conformance in a subterranean formation |
| 02/03/2004 | US6686330 Low-foaming; good biodegradability; can be used in polymer, antifoaming, biocidal, coating, fertilizer, pharmaceutical, and drilling fluid compositions. |
| 02/03/2004 | US6686323 Removing oil-based mud deposits prior to cementing via alkyl polyglucoside in mutual solvent for water and hydrocarbon |
| 02/03/2004 | CA2250566C Methods of rapidly consolidating particulate materials in wells |
| 02/03/2004 | CA2231901C Oil based compositions for sealing subterranean zones and methods |
| 02/03/2004 | CA2209232C Resilient well cement compositions and methods |
| 02/03/2004 | CA2068562C Cleaning methods |
| 01/29/2004 | WO2004009954A1 Method for completing injection wells |
| 01/29/2004 | WO2004009510A1 Catalytic composition and use thereof in the production of lower molecular weight hydrocarbons |
| 01/29/2004 | WO2003100215A3 Mitigation of proppant sticking in removing downhole tools |
| 01/29/2004 | US20040019199 Adding to an aqueous fluid gelled with a polysaccharide, at least one low molecular polyol, and adding to the to above flfuid an effective amount of metal ion to catalyze the polyol to break down the polymer backbone directly |
| 01/29/2004 | US20040019148 Use of weakly anionic copolymers as dispersing and/or grinding aid agent of an aqueous suspension of mineral materials |
| 01/29/2004 | US20040018943 Mixture of water, polymer and crosslinking agent |
| 01/29/2004 | US20040016676 Production of lower molecular weight dydrocarbons |
| 01/29/2004 | US20040016543 Compositions and processes for treating subterranean formations |
| 01/29/2004 | US20040016371 Methods of cementing pipe in well bores and low density cement compositions therefor |
| 01/29/2004 | CA2493260A1 Catalytic composition and use thereof in the production of lower molecular weight hydrocarbons |
| 01/28/2004 | EP1384703A2 Well cementing compositions |
| 01/28/2004 | EP1060325B1 Compositions for use in well construction, repair and/or abandonment |
| 01/27/2004 | US6681857 Decomposing in situ a pentaethylenehexamine-3co complex, thereby generating heat and carbon dioxide; enhanced oil recovery |
| 01/27/2004 | US6681856 Placing in bore mixture of hydraulic cement, water to form slurry, and water soluble biodegradable cement dispersant comprising natural polyamide graft copolymer with side chain formed from aldehydes and sulfur-containing acids or salts |
| 01/27/2004 | CA2116977C Process for recovering and causing highly viscous petroleum products to flow |
| 01/25/2004 | CA2432979A1 Methods of cementing pipe in well bores and low density cement compositions therefor |
| 01/23/2004 | CA2432875A1 Stable well cementing methods and compositions |
| 01/22/2004 | WO2004007905A1 Process for treatment of underground reservoirs |
| 01/22/2004 | WO2004007904A1 Viscosity reduction of viscoelastic surfactant based fluids |
| 01/22/2004 | WO2004007897A2 Shale hydration inhibition agent and method of use |
| 01/22/2004 | WO2004007894A2 Apparatus and method for accelerating hydration of particulate polymer |
| 01/22/2004 | WO2004007630A1 A drag-reducing agent for use in injection water at oil recovery |
| 01/22/2004 | WO2003033860A3 Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method |
| 01/22/2004 | US20040015023 Heat exchanging, controlling the heat, temperature and pressure, pyrolyzing; a heater is located in an open wellbore, also heat exchanger, insulation conductor |
| 01/22/2004 | US20040014821 First oil- in-water emulsion dispersed in a second oil, and a method of preparing the same. The O/W/O emulsion can be used as a drive fluid in an enhanced oil recovery process. The O/W/O emulsion of this invention may also be used as a |
| 01/22/2004 | US20040014616 Biodegradable lubricating composition and uses thereof, in particular in a bore fluid |
| 01/22/2004 | US20040014609 Mixture containing nonionic surfactant and oxyamide |
| 01/22/2004 | US20040014608 Methods of preventing the flow-back of particulates deposited in subterranean formations |
| 01/22/2004 | US20040014607 Encapsulating in water soluble shell; mixture of vinyl alcojhol copolymer and waterproofing agent; dissolving in water |
| 01/22/2004 | US20040014606 Method For Completing Injection Wells |
| 01/22/2004 | US20040011563 Novel compounds and method for generating a highly efficient membrane in water-based drilling fluids |
| 01/22/2004 | US20040011527 Scale dissolver fluid |
| 01/22/2004 | US20040011526 Method of using alkylsulfonated phenol/aldehyde resins as adsorption reducing agents for chemical flooding and soil remediation |
| 01/21/2004 | EP1382657A1 Thickener for excavating slurry, excavating slurry using the thickener, and cast-inplace underground pile work method and underground continuous wall work method using the excavating slurry |
| 01/20/2004 | CA2209236C Resilient well cement compositions and methods |
| 01/20/2004 | CA2093726C Drilling muds effective at high temperature |
| 01/15/2004 | WO2004005672A1 Self-diverting pre-flush acid for sandstone |
| 01/15/2004 | WO2004005671A1 Compositions and methods for treating a subterranean formation |
| 01/15/2004 | US20040009880 Reversibly thickenable non-polymeric fluid that has low viscosity in strong acid, gels when the acid concentration is reduced by only a small amount, and is subsequently decomposed by the acid; for use prior to matrix acidizing in wellbores |
| 01/15/2004 | US20040008571 Apparatus and method for accelerating hydration of particulate polymer |
| 01/15/2004 | US20040007360 Cementing compositions and the use of such compositions for cementing wells |
| 01/15/2004 | US20040007163 Hydraulic cement, water, and an additive of an aqueous suspension of microspheres and a water swellable clay suspending agent |
| 01/14/2004 | EP1379754A1 Methods of treating subterranean zones penetrated by well bores |
| 01/14/2004 | EP1379473A1 Corrosion inhibitors for aqueous systems |
| 01/08/2004 | WO2004003331A2 Non-corrosive amphoteric surfactants and method of well treatment |
| 01/08/2004 | WO2004003101A1 System and method for removing particles from a well bore |
| 01/08/2004 | WO2004002994A2 Novel phosphonocarboxylic acid esters |
| 01/08/2004 | WO2001005727A3 Low density well cement compositions |
| 01/08/2004 | US20040005987 Aqueous drilling fluid used in drilling wells through subterranean formations having a pH of between about 7 and about 12 and a viscosity of from about 20 to about 80 sec (Marsch cone) which is prepared by admixing fresh water, brine |
| 01/08/2004 | US20040003759 Water; microspheres; and a water swellable clay suspending agent; for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure |
| 01/08/2004 | DE4300996B4 Modifizierter Bentonit Modified bentonite |
| 01/08/2004 | CA2490931A1 Novel phosphonocarboxylic acid esters |
| 01/08/2004 | CA2490363A1 Non-corrosive amphoteric surfactants and method of well treatment |
| 01/08/2004 | CA2485511A1 Systems and method for removing particles from a well bore penetrating a possible producing formation |
| 01/07/2004 | EP1378554A1 Hydrophilic polymer concentrates |
| 01/07/2004 | EP0937193B1 Method of remediation of contaminants in porous media through minimization of buoyancy effects |
| 01/06/2004 | US6672388 Process for the cleaning of oil and gas wellbores |
| 01/06/2004 | US6672385 Combined liner and matrix system |
| 01/06/2004 | CA2235512C Means and method for the preparation of sealings in oil and gas wells |
| 01/06/2004 | CA2209235C Resilient well cement compositions and methods |
| 01/06/2004 | CA2202728C Cementitious well drilling fluids and methods |
| 01/02/2004 | EP1375819A1 Cementing subterranean zones |
| 01/02/2004 | EP1375818A1 Well cementing |
| 01/02/2004 | EP1373680A1 Method of well treatment |
| 01/02/2004 | EP1373429A1 Multi-component kits and combinations, use thereof and plastic cements obtained therefrom |
| 01/02/2004 | EP0946470B1 A method for preventing or retarding the formation of gas hydrates |
| 01/02/2004 | EP0914400B1 Drilling method and system using foam - foaming composition |
| 01/01/2004 | US20040002427 Compositions of oil-based biodegradable drilling fluids and process for drilling oil and gas wells |
| 01/01/2004 | US20040002426 Using low molecular weight polyalkyl (meth)acrylate; adjust viscosity of fluid |
| 01/01/2004 | US20040000434 System and method for removing particles from a well bore penetrating a possible producing formation |
| 01/01/2004 | US20040000403 Preferred fluid loss control polymer additive is a polymer containing calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, calcium salt of maleic acid n-vinyl caprolactam, and 4-hydroxybutyl vinyl ether |
| 01/01/2004 | US20040000402 Methods of consolidating proppant and controlling fines in wells |
| 12/31/2003 | WO2004001188A1 Method for treating subterranean formation |
| 12/31/2003 | WO2004001183A1 Methods of sealing expandable pipe in well bores and sealing compositions |
| 12/31/2003 | WO2004000969A1 Method of formulating and using a drilling mud with fragile gels |
| 12/31/2003 | WO2004000968A1 Method for reducing sag in drilling, completion and workover fluids |
| 12/31/2003 | WO2004000967A1 Method for removing drill cuttings from wellbores and drilling fluids |
| 12/31/2003 | WO2004000885A2 Molecular weight reduction of polysaccharides by electron beams |
| 12/31/2003 | WO2004000750A1 Well cementing compositions and methods |
| 12/31/2003 | WO2003074833A3 Composition and process for well cleaning |
| 12/31/2003 | CA2488675A1 Method for removing drill cuttings from wellbores and drilling fluids |
| 12/31/2003 | CA2488090A1 Method for reducing sag in drilling, completion and workover fluids |
| 12/30/2003 | US6669863 Anionic cellulose ethers having temperature-dependent associative properties |