| 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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| 09/30/2007 | CA2582275A1 Self-cleaning well control fluid |
| 09/27/2007 | WO2007109281A2 Proppants made from filled polymers for use during oil and gas production and associated processes |
| 09/27/2007 | WO2007107950A1 Methods of treating wellbores with recyclable fluids |
| 09/27/2007 | WO2007107779A1 Cements for use across formations containing gas hydrates |
| 09/27/2007 | WO2007107763A2 Low heat of hydration cement compostions and methods of using same |
| 09/27/2007 | WO2007107502A1 Additive for preserving the fluidity of fluids containing gas hydrates |
| 09/27/2007 | WO2007107015A1 Drilling fluid and method for reducing lost circulation |
| 09/27/2007 | US20070225176 Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells |
| 09/27/2007 | US20070225175 Such as polylactic or polyhydroxyalkanoate to viscosify aqueous fluids; sand control screens or liners |
| 09/27/2007 | US20070225174 Introducing a biodegradable water-in-synthetic oil base emulsion into the wellbore having an external phase of an emulsified surfactant, especially nonionic; the base oil contains 75 to 99 percent by weight of linear paraffins; decreasing cake cohesion and wellbore adherence |
| 09/27/2007 | CA2646737A1 Additive for preserving the fluidity of fluids containing gas hydrates |
| 09/27/2007 | CA2645920A1 Low heat of hydration cement compositions and methods of using same |
| 09/26/2007 | EP1836272A2 Emulsifier-free wellbore fluid |
| 09/26/2007 | EP1836228A1 Methods and compositions for enhancing guar hydration rates and performing guar derivatisation reactions |
| 09/26/2007 | EP1551935A4 Use of anionic dispersion polymers as viscosity modifiers in aqueous drilling fluids |
| 09/26/2007 | EP1251953A4 Rheology modified compositions and modification agents |
| 09/26/2007 | EP1064339A4 Compositions and processes for oil field applications |
| 09/26/2007 | CN100339459C Seal stoppage agent for oil-well |
| 09/26/2007 | CN100339458C Oil field filtering loss reducing agent using molasses alcohol waste liquid as raw material and its production method |
| 09/25/2007 | US7273832 Completion fluids; antiscaling agents; for removing filter cakes by dissolving alkaline sulfates on surface of well bores |
| 09/25/2007 | US7273103 Cement compositions comprising environmentally compatible defoaming agents and methods of use |
| 09/25/2007 | US7273101 Delayed-gelation solution |
| 09/25/2007 | US7272912 Method and apparatus for converting spent water-based drilling muds into fertile indigenous top soil |
| 09/24/2007 | CA2582690A1 Solidification of residuals from water treatment systems in heavy oil recovery operations |
| 09/20/2007 | WO2007104911A1 Improved methods of coating particulates |
| 09/20/2007 | WO2007066269A3 Viscoelastic surfactant rheology modification |
| 09/20/2007 | US20070219098 Emulsifiers for drilling fluids |
| 09/20/2007 | US20070219097 Emulsifiers For Drilling Fluids |
| 09/20/2007 | US20070215386 Drill cuttings conveyance systems and methods |
| 09/20/2007 | US20070215355 Methods of Treating Wellbores with Recyclable Fluids |
| 09/20/2007 | US20070215351 Use of phosphorus and nitrogen containing formulations in secondary oil recovery operations |
| 09/19/2007 | EP1833941A1 High density brines for use in wellbore fluids |
| 09/19/2007 | EP1561005B1 Vinyllactam copolymers used as gas hydrate inhibitors |
| 09/19/2007 | CN101037933A Scale and corrosion inhibition method combining chemical huff and puff with water-shutoff |
| 09/19/2007 | CN101037593A Method for avoiding adsorption of oil displacement surfactant by strata rock |
| 09/19/2007 | CN101037592A High-density mud conversion to cement slurry cementing fluid |
| 09/19/2007 | CN101037591A Preparation method for anti-temperature salt-tolerant fluid loss reducer |
| 09/19/2007 | CN101037493A Cation polypropylene amides gel micro-ball and preparation method thereof |
| 09/19/2007 | CN100338169C Fluid loss additive for boring fluid |
| 09/18/2007 | US7271133 comprise water, a water soluble hydrophobically modified gelling agent polymer eg cellulose; increased radiuses of gyration |
| 09/18/2007 | US7271132 Metallic soaps of modified fatty acids and rosin acids and methods of making and using same |
| 09/18/2007 | US7271131 Fluid loss control and sealing agent for drilling depleted sand formations |
| 09/18/2007 | US7270879 Particulate material containing thermoplastics and methods for making and using the same |
| 09/18/2007 | US7270768 Glyercol- containing by-products of processing triglycerides for the purpose of manufacturing products such as biodiesel, soaps and fatty acids and salts thereof |
| 09/18/2007 | US7270704 Mixture for fabrication of fireproof high-strength spherical granules and the method of their manufacture |
| 09/18/2007 | US7270184 Method of well treatment |
| 09/18/2007 | US7270180 Controlling inorganic scale of zinc sulfide or iron sulfide in a subterranean formation or wellbore, by pumping downhole a copolymer comprising a quaternary ammonium salt and an acrylamide unit; well completion; copolymer of acrylamide and diallyldimethylammonium salt and possibly acrylic acid or salt |
| 09/18/2007 | US7270179 Method for stimulation of liquid flow in a well |
| 09/18/2007 | CA2453648C Methods of drilling and completing well bores |
| 09/13/2007 | WO2007104054A1 Diverting compositions, fluid loss control pills, and breakers thereof |
| 09/13/2007 | US20070213233 Diverting compositions, fluid loss control pills, and breakers thereof |
| 09/13/2007 | US20070213232 Viscoelastic Surfactant Gels With Reduced Salt Concentration |
| 09/13/2007 | US20070213230 Fast Dissolving Hydroxyalkyl Guar Derivatives |
| 09/13/2007 | US20070213229 drilling fluid that can be discharged onto the seabed or overboard that complies with strict environmental impact restrictions; fractional distillation of a mixture of C12-20 n-paraffins, C12-20 isoparaffins and a fraction selected from hydrogenated dimeric, trimeric, oligomeric olefins; oil or gas wells |
| 09/12/2007 | EP1831501A1 Enhanced slurrification method |
| 09/12/2007 | EP1831270A1 Polymeric materials |
| 09/12/2007 | EP1194497B1 Water based wellbore fluids |
| 09/12/2007 | CN200946498Y Hollow solid discharging-assistant agent |
| 09/12/2007 | CN101033685A Combined removing plug by acid technology of oil well |
| 09/12/2007 | CN101033392A Expansion type flow gel profile controlling water shutoff agent |
| 09/12/2007 | CN101033391A Method of preparing sulfonated-phenoformoldehyde resin for drilling fluid |
| 09/12/2007 | CN101032682A Lignin parents amphoteric surface active agent |
| 09/12/2007 | CN100336891C Microemulsion and its preparation method |
| 09/12/2007 | CN100336882C Wax-cleaning wax-preventing agent for water-driving polymer-driving oil well |
| 09/11/2007 | US7268101 Dilution of hydratable guar gum; for forming high viscosity well treating fluid |
| 09/11/2007 | US7268100 Shale inhibition additive for oil/gas down hole fluids and methods for making and using same |
| 09/11/2007 | US7267291 Additive for increasing the density of an oil-based fluid and fluid comprising such additive |
| 09/11/2007 | US7267173 A first metallic fiber component that is more dense than the base fluid; and a second glass, carbon or polymeric fiber component that has a density close to that of the base fluid and is relatively flexible |
| 09/11/2007 | US7267171 Methods and compositions for stabilizing the surface of a subterranean formation |
| 09/08/2007 | CA2580296A1 Method of using lightweight polyamides in hydraulic fracturing and sand control operations |
| 09/07/2007 | WO2007100570A1 Ethoxylated raw cotton linters for completion and workover fluids |
| 09/07/2007 | WO2007099292A1 Salt water stable latex cement slurries |
| 09/07/2007 | CA2644225A1 Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
| 09/07/2007 | CA2631090A1 Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties |
| 09/06/2007 | US20070207933 Treatment fluids comprising friction reducers and antiflocculation additives and associated methods |
| 09/06/2007 | US20070207932 Clay inhibitors for the drilling industry |
| 09/06/2007 | US20070204997 Process for Disruption of Filter Cakes |
| 09/06/2007 | US20070204992 Polyurethane proppant particle and use thereof |
| 09/06/2007 | US20070204990 Well Treatment |
| 09/06/2007 | US20070204765 Self-Adaptive Cement Systems |
| 09/06/2007 | US20070204750 Multiphase flow measurement apparatus and method |
| 09/05/2007 | EP1546507B1 Acid-coated sand for gravel pack and filter cake clean-up |
| 09/05/2007 | CN101029225A Non-base oil-displacing agent composition of bi-alkyl carboxylate and its use |
| 09/05/2007 | CN101029224A Use of bi-alkyl carboxylate surface activator in triple oil recovery |
| 09/05/2007 | CN101029223A Acidifying and fracturing high-temperature corrosion inhibitor |
| 09/05/2007 | CN101029222A Paraffin-cleaning antiseptic corrosion inhibitor |
| 09/05/2007 | CN101029221A Production of instant dry-powder cement water reducer |
| 09/05/2007 | CN101029109A Production of cationic microsphere with crosslinked swelling function |
| 09/05/2007 | CN100335746C Method for disposing underground hydrocarbon reservoir |
| 09/05/2007 | CN100335742C Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone |
| 09/05/2007 | CN100335638C Thermophilic long chain paraffin hydrocarbon mono oxygenase, its coding gene and application |
| 09/04/2007 | US7265079 Self-destructing filter cake |
| 09/04/2007 | US7265078 Drilling fluid apparatus and method |
| 09/04/2007 | US7264653 Methods for inhibiting hydrate blockage in oil and gas pipelines using simple quaternary ammonium and phosphonium compounds |
| 09/04/2007 | US7264051 Providing partitioned, coated particulates that comprise particulates, an adhesive, and a partitioning agent, and wherein adhesive comprises an aqueous tackifying agent or a silyl modified polyamide; slurrying particulates in a treatment fluid, placing slurry into subterranean formation |
| 09/04/2007 | CA2458504C Hydrocarbon recovery |
| 09/04/2007 | CA2447928C Proppants and their manufacture |
| 09/04/2007 | CA2447770C Shale hydration inhibition agent and method of use |
| 08/30/2007 | WO2007075603A3 Improved biodegradability of antiscalant formulations |
| 08/30/2007 | US20070203029 Foamed treatment fluids and associated methods |