| 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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| 04/22/2009 | EP2049613A1 Wellbore fluid |
| 04/22/2009 | EP1859003B1 Use of polyesters as gas hydrate inhibitors |
| 04/22/2009 | CN101412906A Acid fracturing thickening agent and preparation thereof |
| 04/22/2009 | CN101412905A Preparation of composite fracturing fluid for hydraulic fracture |
| 04/22/2009 | CN101412784A Method for preparing deep profile modification cationic polymer microlatex from reverse microemulsion |
| 04/22/2009 | CA2641472A1 Pumice containing compositions for cementing a well |
| 04/21/2009 | US7521400 foamed gelled diesel or paraffin oil, made with a gelling agent, e.g. triethyl phosphate, triisopropionic acid aluminum salt, and a gel-enhancing zwitterionic surfactant (erucic amidopropyl dimethyl betaine); sodium acetate breaker; in hydraulic fracturing, frac packing, gravel packing, diversion |
| 04/21/2009 | US7521399 organoclay treated with a quaternary ammonium cationic surfactant having an amide linkage; undergoes aerobic biodegradation, nontoxic, environmetally friendly |
| 04/21/2009 | US7521398 Shale hydration inhibition agent and method of use |
| 04/21/2009 | US7520327 Methods and materials for subterranean fluid forming barriers in materials surrounding wells |
| 04/16/2009 | WO2009049076A1 Injection system and method |
| 04/16/2009 | WO2009047496A2 Cement compositions comprising a high-density particulate elastomer and associated methods |
| 04/16/2009 | WO2009047480A1 Wellbore fluid |
| 04/16/2009 | WO2009047478A1 Wellbore fluid |
| 04/16/2009 | WO2009046980A1 Fusing materials for prevention of lost circulation |
| 04/16/2009 | WO2006104711A3 Method for removal of asphaltene, paraffin and/or scale from producing wells |
| 04/16/2009 | WO2006083757A3 Method and system for harvesting weighting agent fines |
| 04/16/2009 | US20090099047 Fusing Materials For Prevention of Lost Circulation |
| 04/16/2009 | US20090099046 Methods, drilling fluids and drilling fluid additives for limiting tar sand accretion on metal surfaces |
| 04/16/2009 | US20090095535 using the drilling composition to drill a portion of the well bore, the consolidating material penetrating into the walls of the well bore, and consolidating a portion of the formation particulates;.crosslinking polymers bonding only at the points of contact between particles and not sealing across |
| 04/16/2009 | US20090095534 Treating tar sand or tar resident in well bore by contacting the tar sand with treatment fluid comprising an aqueous fluid and a styrene-acrylate polymer, the tar sand comprising tar and sand, and allowing styrene-acrylate polymers to interact with tar to separate tar from sand |
| 04/16/2009 | US20090095475 Cement Compositions Comprising a High-Density Particulate Elastomer and Associated Methods |
| 04/16/2009 | US20090095473 Method of Fracturing Hydrocarbon-Bearing Formation With Coated Porous Polyolefin Particulate |
| 04/15/2009 | EP2048215A1 Technology useful in wellbore fluids |
| 04/15/2009 | EP2046914A2 Precursor compositions for ceramic products |
| 04/15/2009 | EP2046913A1 Composition and method relating to the prevention and remediation of surfactant gel damage |
| 04/15/2009 | EP2046912A1 Mixture for improved foaming in the extraction of petroleum or natural gas |
| 04/15/2009 | CN101410588A Method of fracturing a coalbed gas reservoir |
| 04/15/2009 | CN101407716A Complex formulation material for improving oil well secondary and third stoping oil productivity |
| 04/14/2009 | US7517836 Defoaming methods and compositions |
| 04/14/2009 | US7517835 Surfactant-polymer compositions for enhancing the stability of viscoelastic-surfactant based fluid |
| 04/14/2009 | CA2558052C Well fluid and method using hollow particles |
| 04/14/2009 | CA2338444C Polysaccharide-containing well drilling and servicing fluids |
| 04/09/2009 | WO2009044137A1 Open-hole wellbore lining |
| 04/09/2009 | WO2009044075A2 Improved process for enhanced oil recovery |
| 04/09/2009 | WO2009005880A3 Fracture stimulation for a wellbore using thermoset polymer nanocomposite particles |
| 04/09/2009 | WO2008151791A3 Water-based fluid for preventing the formation of w/o emulsions or for resolving w/o emulsions already formed in porous matrices |
| 04/09/2009 | WO2008029081A8 Method of improving recovery from hydrocarbon reservoirs |
| 04/09/2009 | WO2007034475A3 Solid product for preparing a drilling fluid |
| 04/09/2009 | US20090093382 Methods and Compositions for Pre-emptively Controlling Undesirable Water Production From Oil and Gas Wells` |
| 04/09/2009 | US20090090559 Compressible objects combined with a drilling fluid to form a variable density drilling mud |
| 04/09/2009 | US20090090558 Compressible Objects Having A Predetermined Internal Pressure Combined With A Drilling Fluid To Form A Variable Density Drilling Mud |
| 04/09/2009 | CA2700176A1 Open-hole wellbore lining |
| 04/09/2009 | CA2698785A1 Improved process for enhanced oil recovery |
| 04/08/2009 | EP2045439A1 Use of surface-modified nanoparticles for oil recovery |
| 04/08/2009 | CN101405364A Additive for preserving the fluidity of fluids containing gas hydrates |
| 04/08/2009 | CN101403290A Method for improving extraction rate of ultra-thick oil |
| 04/08/2009 | CN101403285A Physical foam cementing method |
| 04/08/2009 | CN101402851A Ternary composite block-resistant protection solution for drive injection well |
| 04/08/2009 | CN101402850A Process for producing corrosion-protection, antiscaling and wax-proof sustained-release particles for oil well |
| 04/08/2009 | CN101402849A Well cementing high-temperature inhibiting agent for oil gas well and preparation method |
| 04/08/2009 | CN101402592A Stone oil sulphonic acid, its salt, preparation method and uses thereof |
| 04/08/2009 | CN100475929C Heavy acid-fluid formula |
| 04/07/2009 | US7514392 A weighting agent selected from barite, calcite, hematite, iron oxide, calcium carbonate, organic and inorganic salts; and an antiswelling mixture of aminoalkylcyclohexylamines and aminoarylcyclohexlamines in fresh or sea water well bores |
| 04/07/2009 | US7514389 Containing a weighting agent and a shale encapsulating polymer that is a quaternized polyvinyl alcohol derivative, e.g., quaternized and hydrogenated reaction product of polyvinyl alcohol with acrylonitrile or copolymer with quaternized 3-(dialkylaminopropyl)acrylamide |
| 04/07/2009 | US7514007 Use of water-soluble polymer complexes in aqueous systems |
| 04/07/2009 | CA2525090C Aluminosilicate mixture for fabrication of fireproof, high-strength granules, fireproof high-strength spherical granules and the method of their manufacture |
| 04/07/2009 | CA2271286C Invert emulsion well drilling and servicing fluids |
| 04/02/2009 | WO2009042654A2 Process for drying boron-containing minerals and products thereof |
| 04/02/2009 | WO2009040769A1 Treatment fluid with non-symmetrical peroxide breaker and method |
| 04/02/2009 | WO2009040502A1 Methods and compositions relating to minimizing particulate migration over long intervals |
| 04/02/2009 | WO2009016545A3 System, method, and apparatus for combined fracturing treatment and scale inhibition |
| 04/02/2009 | WO2006116868A8 Method for making transportable aqueous slurries by particulate hydrophobicization |
| 04/02/2009 | US20090088348 such as butadiene-styrene block copolymers; hydraulic cements; subterranean formations |
| 04/02/2009 | US20090088347 Treatment Fluid with Non-Symmetrical Peroxide Breaker and Method |
| 04/02/2009 | US20090084604 Compressible objects having partial foam interiors combined with a drilling fluid to form a variable density drilling mud |
| 04/02/2009 | CA2701650A1 Drilling and fracturing fluid |
| 04/02/2009 | CA2700542A1 Process for drying boron-containing minerals and products thereof |
| 04/02/2009 | CA2699072A1 Treatment fluid with non-symmetrical peroxide breaker and method |
| 04/01/2009 | EP2041237A2 Rheology controlled heterogeneous particle placement in hydraulic fracturing |
| 04/01/2009 | EP2041236A1 Wellbore fluid |
| 04/01/2009 | EP2041235A2 Compressible objects combined with a drilling fluid to form a variable density drilling mud |
| 04/01/2009 | EP1786879A4 Method of removing an invert emulsion filter cake after the drilling process using a single phase microemulsion |
| 04/01/2009 | CN101397494A Method for preparing surfactants for displacement of oil |
| 04/01/2009 | CN101397493A Petroleum displacing agent |
| 04/01/2009 | CN101397492A Heatproof oil well cement fluid loss additive and preparation method thereof |
| 04/01/2009 | CN101397491A Multi-element co-polymerization oil well cement fluid loss additive and preparation method thereof |
| 03/31/2009 | US7510009 Method of acidizing a subterranean formation with diverting foam or fluid |
| 03/31/2009 | US7510004 Method for treating an underground formation |
| 03/31/2009 | CA2552525C Method of reducing water influx into gas wells |
| 03/31/2009 | CA2530325C Matrix treatment of damaged sandstone formations using buffered hf-acidizing solutions |
| 03/26/2009 | WO2009038874A1 Invert emulsion fluid systems comprising an emulsified aqueous phase comprising dispersed integral latex particles |
| 03/26/2009 | WO2009038491A1 Proppant, a method for the production thereof and a formation hydraulic fracturing method using the thus produced proppant |
| 03/26/2009 | WO2009037213A1 Thickeners for oil-based drilling fluids |
| 03/26/2009 | WO2009037212A1 Additives for water-based drilling fluids |
| 03/26/2009 | WO2009037211A1 Lubricant additives for drilling fluids |
| 03/26/2009 | WO2009016549A3 System, method and apparatus for acid fracturing with scale inhibitor protection |
| 03/26/2009 | WO2009013710A3 System and method for low damage fracturing |
| 03/26/2009 | US20090082231 Method of producing proppants from glass spheres |
| 03/26/2009 | US20090082230 Well Treatment Fluids Containing Nanoparticles and Methods of Using Same |
| 03/26/2009 | US20090082229 Process for Drying Boron-Containing Minerals and Products Thereof |
| 03/26/2009 | US20090082228 Viscosity Reduction |
| 03/26/2009 | US20090082227 Application of anaerobic denitrifying bacteria utilizing petroleum components as sole carbon source for oil |
| 03/26/2009 | US20090078469 Methods of forming and using fiber-containing diamond-impregnated cutting tools |
| 03/26/2009 | US20090078417 Emulsion System for Sand Consolidation |
| 03/26/2009 | CA2699587A1 Additives for water-based drilling mud compositions |
| 03/26/2009 | CA2699389A1 Thickeners for oil-based drilling mud compositions |
| 03/26/2009 | CA2699364A1 Lubricant additives for drilling mud compositions |
| 03/25/2009 | EP2038368A1 Swellable elastomers and associated methods |
| 03/25/2009 | EP2038367A2 Fluid loss additive with improved rheological properties |