| 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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| 04/20/2004 | US6722429 In situ thermal processing of a hydrocarbon containing formation leaving one or more selected unprocessed areas |
| 04/20/2004 | CA2138098C A method for treating waste of flue gases |
| 04/20/2004 | CA2117458C Preparation of high solids and/or small aqueous phase droplet polymeric microemulsions |
| 04/20/2004 | CA2060580C Ammonium salt of an alkenylsuccinic half-amide and the use thereof as corrosion inhibitor in oil and/or gas production technology |
| 04/15/2004 | WO2004031536A1 Method for the treatment and prevention of asphaltene-paraffin-vax precipitates in oil-wells, wellheads and pipelines by the use of biocolloid suspensions |
| 04/15/2004 | WO2004031320A1 Delivery system for drilling fluid dispersible additive tablet and associated methods |
| 04/15/2004 | WO2004030788A2 Biochemical method for the treatment and prevention of emulsions in oil-wells and on surface equipment |
| 04/15/2004 | US20040072700 Carbon dioxide compatible non-aqueous crosslinked fracturing fluids and methods for their use |
| 04/15/2004 | US20040072699 Depolymerizing (modified) galactomannans and xanthan; oil well fracturing |
| 04/15/2004 | US20040072698 Gelable liquid and method for selectively inhibiting the gelation of a gelable liquid |
| 04/15/2004 | US20040072697 Water-in-oil emulsion of isobutyl oleate as its external phase and glycerin as the internal phase for freeing differential stuck pipe in a subterranean well drilling operation |
| 04/15/2004 | US20040072696 Invert emulsion fluids having negative alkalinity |
| 04/15/2004 | US20040072695 Drilling fluid systems with improved fluid loss properties |
| 04/15/2004 | US20040069538 Methods of consolidating formations |
| 04/15/2004 | US20040069537 Methods of consolidating formations and forming a chemical casing |
| 04/15/2004 | US20040069490 Low density proppant |
| 04/15/2004 | US20040069486 In situ thermal processing of a coal formation and tuning production |
| 04/15/2004 | CA2501359A1 Method for the treatment and prevention of asphaltene-paraffin-vax precipitates in oil-wells, wellheads and pipelines by the use of biocolloid suspensions |
| 04/15/2004 | CA2501284A1 Petrol-biochemical method for the treatment and prevention of oil-in-water and water-in-oil emulsions in oil-wells and surface equipment |
| 04/14/2004 | EP1406712A2 Suspensions of particles in non-aqueous solvents |
| 04/14/2004 | EP0998540B1 Fluids useful for oil mining comprising de-acetylated xanthane gum and at least one compound increasing the medium ionic strength |
| 04/14/2004 | CN1489606A Polymeric fluid loss additive and method of use thereof |
| 04/14/2004 | CN1145684C Cleaning compositions for oil and gas well, lines, casings, formations and equipment and its methods of use |
| 04/14/2004 | CN1145647C Method of producing hydrosolubles polymers, polymers thus obtained and uses of same |
| 04/13/2004 | US6720292 Reinforced swelling clay gel |
| 04/13/2004 | US6720291 Well treatment composition for use in iron-rich environments |
| 04/13/2004 | US6720290 A well treatment fluid composition that comprises a carrier fluid and an amphoteric surfactant, and optionally a viscosifying agent and proppant, is well suited for use in fracturing coal beds to stimulate methane production. The |
| 04/13/2004 | US6719055 Method for drilling and completing boreholes with electro-rheological fluids |
| 04/13/2004 | US6719054 Pumping acid and gas to generate foam |
| 04/13/2004 | US6719053 Ester/monoester copolymer compositions and methods of preparing and using same |
| 04/13/2004 | US6719047 In situ thermal processing of a hydrocarbon containing formation in a hydrogen-rich environment |
| 04/08/2004 | WO2004029175A1 Borehole treatment agent containing low toxic oil phase |
| 04/08/2004 | WO2004002994A3 Novel phosphonocarboxylic acid esters |
| 04/08/2004 | WO2003062344A3 Acidizing and scale treatment of subterranean formation |
| 04/08/2004 | WO2002040827A8 Well treatment |
| 04/08/2004 | US20040068073 Starch graft copolymers and method of making and using starch graft copolymers for agriculture |
| 04/08/2004 | US20040067855 Viscoelastic wellbore treatment fluid |
| 04/08/2004 | US20040067854 Crosslinking a water soluble polymer; fracturing hydraulic formations |
| 04/08/2004 | CA2499667A1 Borehole treatment agent containing low toxic oil phase |
| 04/07/2004 | EP1404777A1 METHOD OF INCREASING pH OF HIGH-DENSITY BRINES |
| 04/07/2004 | EP1404776A2 Polymer solutions with shear reversible properties |
| 04/07/2004 | EP1056926B1 Improvements in or relating to reducing water flow |
| 04/07/2004 | EP1040145B1 Method for grafting lignin |
| 04/07/2004 | CN1144932C Method for increasing mining ratio of methane from subterranean carbonaceous formation |
| 04/06/2004 | US6716799 Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration |
| 04/06/2004 | US6716798 Conformance improvement additive, conformance treatment fluid made therefrom, method of improving conformance in a subterranean formation |
| 04/06/2004 | US6716797 Polymer and surfactant |
| 04/06/2004 | US6716282 Well completion; mixture of oil, water, emulsification surfaction, hydraulic setting compound and demulsificator |
| 04/06/2004 | US6715568 Latex additive for water-based drilling fluids |
| 04/06/2004 | US6715553 Methods of generating gas in well fluids |
| 04/06/2004 | US6715552 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 |
| 04/06/2004 | US6715549 In situ thermal processing of a hydrocarbon containing formation with a selected atomic oxygen to carbon ratio |
| 04/06/2004 | US6715548 Electrical heaters may be used to heat the subterranean formation by radiation and/or conduction |
| 04/06/2004 | US6715547 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation |
| 04/06/2004 | US6715546 Chemical and/or physical properties of hydrocarbon material within a subterranean formation may need to be changed to allow hydrocarbon material to be more easily removed |
| 04/01/2004 | WO2004027213A1 Acid-coated sand for gravel pack and filter cake clean-up |
| 04/01/2004 | WO2004027212A1 Fiber assisted emulsion system |
| 04/01/2004 | WO2004026987A1 Membrane forming in-situ polymerization for water based drilling fluids |
| 04/01/2004 | US20040063795 Water and an acid blend of mineral acid and organic acid, a blend of a nonionic surfactant and an anionic surfactant, and solvent; use well cleaning; cleaning oil sludges and drilling mud residues |
| 04/01/2004 | US20040063588 To quickly introduce additives that will disperse, or break down, such that the additives within the fluid become small enough particles that they will not plug screens or damage expensive drilling equipment |
| 04/01/2004 | US20040063587 Surfactant-polymer compositions for enhancing the stability of viscoelastic-surfactant based fluid |
| 04/01/2004 | US20040060702 Well treatment |
| 04/01/2004 | DE10243312A1 Bohrlochbehandlungsmittel mit niedrig-toxischer Ölphase Well treating agent with low-toxic oil phase |
| 04/01/2004 | CA2499372A1 Fiber assisted emulsion system |
| 03/31/2004 | EP1403466A2 Consolidating proppant and controlling fines in wells |
| 03/31/2004 | EP1403463A1 Paraffin inhibitor compositions and their use in oil and gas production |
| 03/31/2004 | EP1401988A2 Method for solubilising asphaltenes in a hydrocarbon mixture |
| 03/31/2004 | EP1156975B1 Transport of solid particulates |
| 03/30/2004 | US6712137 Heat exchanging to superimpose heat |
| 03/30/2004 | US6712136 Providing heat to the formation; controlling the heat from the heat source such that an average temperature within at least a majority of the selected section of the formation is less than about 375 degrees c. |
| 03/30/2004 | US6712135 In situ thermal processing of a coal formation in reducing environment |
| 03/30/2004 | CA2250364C Process for treating water-containing natural gas wells & natural gas storage wells |
| 03/25/2004 | WO2004025080A2 Method and composition for reducing wear in a cutting head of a tunnel boring machine |
| 03/25/2004 | WO2004025076A1 Compositions for thermal insulation and methods of using the same |
| 03/25/2004 | WO2004025075A1 Methods and compositions for sealing an expandable tubular in a wellbore |
| 03/25/2004 | US20040059054 Compositions for thermal insulation and methods of using the same |
| 03/25/2004 | US20040058827 Paraffin inhibitor compositions and their use in oil and gas production |
| 03/25/2004 | US20040058826 Mixture of glycol, talc and pH adjuster and dispersants; oil and gas wells |
| 03/25/2004 | US20040058825 Water-based drilling fluid additive containing graphite and carrier |
| 03/25/2004 | US20040058824 Additive for oil-based invert drilling fluids |
| 03/25/2004 | US20040055748 Sealing subterranean zones of well bore; using slurry of acrylonitrile-butadiene-styrene terpolymer; well completion |
| 03/25/2004 | US20040055747 Acid coated sand for gravel pack and filter cake clean-up |
| 03/25/2004 | CA2497307A1 Compositions for thermal insulation and methods of using the same |
| 03/24/2004 | EP1400497A2 Cementing subterranean zone |
| 03/24/2004 | EP1399638A1 Hydrothermal drilling method and system |
| 03/24/2004 | EP1399524A1 Shale hydration inhibition agent and method of use |
| 03/24/2004 | EP1294821B1 Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system |
| 03/24/2004 | EP1051368B1 Universal well cement additives and methods |
| 03/24/2004 | EP1042426B1 Invert emulsion drilling fluid containing mixtures of secondary esters obtained by conversion of olefins, and preparation thereof |
| 03/24/2004 | CA2442240A1 Compositions containing a buffer and a peroxide or peracid useful for treating wells |
| 03/23/2004 | US6710107 Acrylic polymers based on hydrophobic and hydrophilic acrylic esters and/or amides; fluid control agents to reduce filtrate loss in the wellbore of an oil well during cement setting; heat resistance; high temperature strength |
| 03/23/2004 | US6710019 Wellbore fluid |
| 03/23/2004 | US6708760 Methods and cement compositions for cementing in subterranean zones |
| 03/23/2004 | US6708758 In situ thermal processing of a coal formation leaving one or more selected unprocessed areas |
| 03/19/2004 | CA2440102A1 Elastomeric admixtures for improving cement elasticity |
| 03/18/2004 | WO2004022914A1 Method of treating subterranean formations with porous ceramic particulate materials |
| 03/18/2004 | WO2004022910A1 Gas hydrate inhibitors |
| 03/18/2004 | WO2004022909A1 Method and compositions for inhibiting formation of hydrocarbon hydrates |
| 03/18/2004 | WO2004022668A1 Reducing fluid loss in a drilling fluid |
| 03/18/2004 | WO2004022667A1 Compositions for and methods of stabilizing subterranean formations containing clays |