| 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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| 05/26/2005 | WO2004111161A8 Gas hydrate inhibitors |
| 05/26/2005 | US20050113264 Well treatment fluid |
| 05/26/2005 | US20050113263 Differential etching in acid fracturing |
| 05/26/2005 | US20050113261 Adding water soluble polymer and organophilic bentonite; stirring; storage stability |
| 05/26/2005 | US20050113259 Thermal stability agent for maintaining viscosity and fluid loss properties in drilling fluids |
| 05/26/2005 | US20050109540 Method of drilling with magnetorheological fluid |
| 05/26/2005 | US20050109512 Method to form a barrier in a reservoir with a magnetorheological fluid |
| 05/26/2005 | US20050109507 Methods of using cement compositions having long-term slurry-state stability |
| 05/26/2005 | US20050109506 Methods for preparing slurries of coated particulates |
| 05/25/2005 | EP1532346A1 Method for controlled placement of oilfield chemicals and composition useful for practicing same |
| 05/25/2005 | EP1532223A1 Drilling fluid, apparatus, and method |
| 05/25/2005 | EP1436484B1 Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method |
| 05/25/2005 | DE10349808A1 Emulgatoren für Bohrspülmittel Emulsifiers for drilling fluid |
| 05/25/2005 | DE10349807A1 Emulgatoren für Bohrspülmittel Emulsifiers for drilling fluid |
| 05/24/2005 | US6896058 Methods of introducing treating fluids into subterranean producing zones |
| 05/24/2005 | US6896053 In situ thermal processing of a hydrocarbon containing formation using repeating triangular patterns of heat sources |
| 05/24/2005 | CA2224201C Expanding additive for cement composition |
| 05/19/2005 | WO2005045186A1 Method of completing poorly consolidated formations |
| 05/19/2005 | WO2003004581A8 Method of and composition for reducing the loss of fluid during well drilling, completion or workover operations |
| 05/19/2005 | US20050107503 Aqueous fracturing fluid |
| 05/19/2005 | US20050107265 Methods For Controlling The Fluid Loss Properties Of Viscoelastic Surfactants Based Fluids |
| 05/19/2005 | US20050107264 Dilution of hydratable guar gum; for forming high viscosity well treating fluid |
| 05/19/2005 | US20050107263 Pumpable multiple phase compositions for controlled release applications downhole |
| 05/19/2005 | US20050103496 degrading filter cake deposited in a subterranean formation by effecting a uniform distribution of a filter cake breaker |
| 05/18/2005 | EP1530618A1 Suspending agent |
| 05/18/2005 | CA2449869A1 Oil based drilling fluid |
| 05/17/2005 | US6894008 Addition of a water-soluble carbonate and/or bicarbonate to a high-density brine of sufficient salt content, e.g. zinc bromide, to reduce acidity of zinc solution used in recovering hydrocarbons, well completion fluids |
| 05/17/2005 | US6894007 Additives for inhibiting gas hydrate formation |
| 05/17/2005 | US6892814 Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation |
| 05/17/2005 | CA2413694C Methods and compositions for sealing subterranean zones |
| 05/12/2005 | WO2005042675A2 Methods for inhibiting hydrate blockage in oil and gas pipelines using simple quaternary ammonium and phosphonium compounds |
| 05/12/2005 | WO2005042665A1 Emulsifiers for drilling fluids |
| 05/12/2005 | WO2005042664A1 Emulsifiers for drilling fluids |
| 05/12/2005 | WO2005021928A3 Production-enhancing completion methods |
| 05/12/2005 | WO2005001243A3 Compositions and methods for consolidating unconsolidated subterranean formations |
| 05/12/2005 | US20050101495 Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability |
| 05/12/2005 | US20050098320 Process for reducing the production of water in oil wells |
| 05/12/2005 | US20050098317 Processes for incorporating inert gas in a cement composition containing spherical beads |
| 05/12/2005 | US20050098316 Cement compositions containing coarse barite, process for making same and methods of cementing in a subterranean formation |
| 05/12/2005 | US20050098315 Method of Completing Poorly Consolidated Formations |
| 05/12/2005 | CA2542853A1 Emulsifiers for drilling fluids |
| 05/12/2005 | CA2542852A1 Emulsifiers for drilling fluids |
| 05/10/2005 | US6889780 Method for drilling depleted sands with minimal drilling fluid loss |
| 05/10/2005 | US6889769 In situ thermal processing of a hydrocarbon containing formation with a selected moisture content |
| 05/10/2005 | US6889768 Sealing composition |
| 05/10/2005 | US6889767 Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads. |
| 05/10/2005 | CA2210795C Oil and gas field chemicals |
| 05/06/2005 | WO2005040669A1 Method for reducing the viscosity of viscous fluids |
| 05/06/2005 | WO2005040554A1 Viscoelastic surfactant gels with reduced salft concentration |
| 05/06/2005 | WO2005040553A1 Fracturing of subterranean formations |
| 05/06/2005 | WO2005040552A1 Improved fracturing fluid and method of use |
| 05/06/2005 | WO2005040551A1 Methods for mitigating the production of water from subterranean formations |
| 05/06/2005 | WO2005040550A1 Zeolite-containing cement composition |
| 05/06/2005 | WO2005040549A1 Cementing composition with controlled mechanical properties |
| 05/06/2005 | WO2005040301A1 Use of cmc in drilling fluids |
| 05/06/2005 | CA2820427A1 Method for reducing the viscosity of viscous fluids |
| 05/06/2005 | CA2550340A1 Fracturing of subterranean formations |
| 05/06/2005 | CA2547919A1 Viscoelastic surfactant gels with reduced salt concentration |
| 05/06/2005 | CA2540767A1 Method for reducing the viscosity of viscous fluids |
| 05/05/2005 | US20050096233 Water soluble polymer containing stryrenesulfonic acid, vinylsulfonic acid, vinyl phosphonic acid |
| 05/05/2005 | US20050096232 High performance water based drilling fluids and method of use |
| 05/05/2005 | US20050092492 Contacting oil or gas formation in a sequence with an aqueous solution, a hydrocarbon fluid, a glycol ether solvent, an epoxy resin derived from bisphenols, or a poly phenolic resin (novolac resins) in a glycol ether solvent, and then with a polyamine curing agent |
| 05/05/2005 | US20050092491 Methods, cement compositions and oil suspensions of powder |
| 05/05/2005 | US20050092211 Providing cement, and a dispersant , the dispersant comprising a surfactant and a hydrolyzed protein; placing the cement in a subterranean formation that has been penetrated by a well bore, allowing the cement to set |
| 05/05/2005 | US20050091915 Use of sulphonated alkyl phenol formaldehydes in the stabilization of ashphaltenes in crude oil |
| 05/04/2005 | EP1527148A1 Lubricants for drilling mud containing silicic acid |
| 05/04/2005 | EP1527078A2 Novel phosphonocarboxylic acid esters |
| 05/03/2005 | US6887834 Methods and compositions for consolidating proppant in subterranean fractures |
| 05/03/2005 | US6887833 Oil based compositions and method for temporarily sealing subterranean zones |
| 05/03/2005 | US6887832 Method of formulating and using a drilling mud with fragile gels |
| 05/03/2005 | US6886635 Filter cake removal fluid and method |
| 05/03/2005 | CA2255940C Coated products and use thereof in oil fields |
| 04/28/2005 | WO2005038194A1 Method of increasing productivity of oil, gas and hydrogeological wells |
| 04/28/2005 | WO2005037894A1 Superabsorbent polymer aqueous paste and coating |
| 04/28/2005 | US20050090406 Methods of preparing and using clean viscous well treating fluids and compositions |
| 04/28/2005 | US20050090405 Vermiculture compositions |
| 04/28/2005 | US20050090404 Internal breaker |
| 04/28/2005 | US20050089631 Methods for reducing particulate density and methods of using reduced-density particulates |
| 04/28/2005 | US20050087341 Liquid gelling agent concentrates and methods of treating wells therewith |
| 04/27/2005 | EP1525250A1 Silicone resin for drilling fluid loss control |
| 04/27/2005 | EP1135438B1 Dispersible water soluble polymers |
| 04/26/2005 | US6884762 Ester-containing downhole drilling lubricating composition and processes therefor and therewith |
| 04/26/2005 | US6884760 Hydrophobic oil soluble mixtures of polyhydroxypropyl methacrylate and calcium carbonates, zinc carbonates, barium carbonates, hematite, ilmenite, magnesium oxide, barite, silica or clay particles, used in drilling |
| 04/26/2005 | US6883609 Permeable cements |
| 04/26/2005 | US6883608 Gravel packing method |
| 04/26/2005 | CA2208205C Well completion spacer fluids and methods |
| 04/21/2005 | WO2005035941A2 Methods of fracturing a subterranean formation using a ph dependent foamed fracturing fluid |
| 04/21/2005 | WO2005035938A1 Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices |
| 04/21/2005 | WO2005035936A1 Well bore treatment fluid |
| 04/21/2005 | WO2005035935A1 Methods of cementing subterranean zones with cement compositions having enhanced compressive strengths |
| 04/21/2005 | WO2005035934A2 Solid-liquid separation of oil-based muds |
| 04/21/2005 | WO2005035931A2 Thermal stability agent for maintaining viscosity and fluid loss properties in drilling fluids |
| 04/21/2005 | WO2005035633A1 Crosslinked polymer gels for filter cake formation |
| 04/21/2005 | US20050085676 Methods for inhibiting hydrate blockage in oil and gas pipelines using betaines and amine oxides |
| 04/21/2005 | US20050085675 Methods for inhibiting hydrate blockage in oil and gas pipelines using ester compounds |
| 04/21/2005 | US20050085397 Surfactant blends for aqueous solutions useful for improving oil recovery |
| 04/21/2005 | US20050085396 Antiagglomerants; prevent plugging conduits, valves, pipes, transfer lines |
| 04/21/2005 | US20050082231 reducing the aggregation and deposition of asphalts or bitumen from fluids such as crude oil, by adding to the fluids antideposit agents such as hexadecyl naphthoxide; reducing particle and/or soot emission during combustion of diesel fuel; pollution control |
| 04/21/2005 | US20050082090 Well drilling method and drilling fluid |
| 04/21/2005 | US20050082062 Extended particle size distribution ceramic fracturing proppant |