| 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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| 07/03/2008 | WO2008077501A1 Low permeability cement systems for steam injection application |
| 07/03/2008 | WO2008020188A3 Methods of preparing settable fluids comprising particle-size distribution-adjusting agents, and associated methods |
| 07/03/2008 | WO2007018922A8 Organosulfonyl latent acids for petroleum well acidizing |
| 07/03/2008 | US20080161445 Gas Migration Prevention Solid Additive Based on Crosslinked PVA Microgel for Cementing Applications |
| 07/03/2008 | US20080161222 Use of Polyaminomethylenephosphonates as Dispersing Agents |
| 07/03/2008 | US20080161212 Contains an aqueous base fluid, a viscoelastic surfactant, and a dual-function additive comprising a soap component such as a fatty acid; use as fracturing fluid in subterranean formations |
| 07/03/2008 | US20080161211 Subterranean Treatment Fluids, Friction Reducing Copolymers, and Associated Methods |
| 07/03/2008 | US20080161210 Comprises an aqueous base fluid, a non-aqueous tackifying agent, and a viscoelastic surfactant; for use as fracturing fluid in subterranean formations; synergistic; increased viscosity |
| 07/03/2008 | US20080161209 Fluid Loss Control in Viscoelastic Surfactant Fracturing Fluids Using Water Soluble Polymers |
| 07/03/2008 | US20080161208 Networked polymeric gels and use of such polymeric gels in hydrocarbon recovery |
| 07/03/2008 | US20080161207 Comprising an aqueous base fluid, a non-aqueous tackifying agent, and a viscoelastic surfactant; enhanced rheological properties as compared to viscoelastic surfactant fluids or gels known in the art, especially at higher temperatures |
| 07/03/2008 | CA2681907A1 Methods of oil and gas production using waste water from water purification processing |
| 07/03/2008 | CA2673866A1 Low permeability cement systems for steam injection application |
| 07/03/2008 | CA2673525A1 Amylases and glucoamylases, nucleic acids encoding them and methods for making and using them |
| 07/03/2008 | CA2672632A1 Method and composition for enhanced hydrocarbons recovery |
| 07/02/2008 | EP1939265A1 Gas migration prevention solid additive based on crossilinked PVA micro-gel for cementing applications |
| 07/02/2008 | EP1939264A1 Low permeability cement systems for steam injection application |
| 07/02/2008 | CN101213268A Fluid loss pills |
| 07/02/2008 | CN101210175A Aluminum silicate proppants, proppant production and application methods |
| 07/02/2008 | CN101210174A Nano oil displacement agent for thermodynamic oil extraction process |
| 07/02/2008 | CN101210173A Highly effective pour depressant for thermodynamic oil extraction process |
| 07/02/2008 | CN100398623C High-temperature resistant water-base mud washing fluid |
| 07/02/2008 | CN100398622C Solid polyalcohol in use for drilling fluid |
| 07/01/2008 | US7393814 Methods, cement compositions and oil suspensions of powder |
| 07/01/2008 | US7393813 Water-based drilling fluids using latex additives |
| 07/01/2008 | US7393407 slurry containing water, amorphous silica particles having a particle size less than 1 mu m and silica flour with a particle size between 2-200 mu m. In order to stabilize the slurry, the slurry contains a polysaccharide. The invention invention further relates to a method for the production of a slurry |
| 07/01/2008 | US7392846 Reducing the adhesiveness of tar in a well bore by introducing a silicate tar-treating and allowing it to react with the tar; may be used in drilling fluids; sodium silicate or potassium silicate |
| 07/01/2008 | US7392845 Method of treating oil or gas well with biodegradable emulsion |
| 07/01/2008 | US7392844 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 06/28/2008 | CA2763680A1 Methods for preventing proppant carryover from fractures, and gravel-packed filter |
| 06/27/2008 | CA2615548A1 Solid gas migration control additives based on latex powders for cementing applications |
| 06/27/2008 | CA2615212A1 Gas migration prevention solid additive based on crosslinked pva microgel for cementing applications |
| 06/26/2008 | WO2008077005A1 Corrosion inhibitor composition comprising a built-in intensifier |
| 06/26/2008 | WO2008028074A3 Low bulk density proppant and methods for producing the same |
| 06/26/2008 | WO2008020212A8 Subterranean treatment fluids, friction reducing copolymers, and associated methods |
| 06/26/2008 | US20080153720 Injecting viscoelastic surfactant (VES) gelling agent; wellbores; subterranean formations |
| 06/26/2008 | US20080153719 Viscoelastic surfactants (VES); hydraulic fracturing |
| 06/26/2008 | US20080153718 Use of Water-Soluble Alkane Sulfonic Acids For Increasing the Permeability of Underground Petroliferous and/or Gas-Bearing Carbonate Rock Formations and For Dissolving Carbonate Contaminants and/or Contaminants Containing Carbonates During Petroleum Production |
| 06/26/2008 | US20080153717 Drilling solutions; bitumens; drill cuttings; construction materials |
| 06/26/2008 | US20080149341 Stable solutions of zirconium hydroxyalkylethylene diamine complex and use in oil field applications |
| 06/26/2008 | US20080149333 Process for stabilized zirconium triethanolamine complex and uses in oil field applications |
| 06/26/2008 | DE102006061327A1 Grafting copolymer, useful e.g. as additives in construction chemical applications, water retention agents and fluid loss additives, comprises silica, which is reacted with an unsaturated silane and a polymer containing sulfonic acid |
| 06/25/2008 | EP1934428A2 Well cement formulations for increased drilling hardness |
| 06/25/2008 | EP1934287A2 Slurry compositions and methods for making same |
| 06/25/2008 | EP1599654B1 Method and composition for injection at a tunnel boring machine |
| 06/25/2008 | CN101205460A Microorganisms agent active protecting agent used for microorganism oil extraction of high-salinity oil well |
| 06/25/2008 | CN101205284A Method for preparing profile control agent and blocking water agent by employing oilfield waste polymers |
| 06/25/2008 | CN101205196A Production by distillation of acetone cyanhydrin and method for producing methacrylic ester and subsequent products |
| 06/25/2008 | CN101205195A Method for producing acetone cyanhydrin and the subsequent products thereof by specific cooling |
| 06/25/2008 | CN101205186A Method for the adsorptive purification of alkyl methacrylates |
| 06/25/2008 | CN101205183A Method for producing methacrylic alkyl esters by way of azeotropic distillation |
| 06/25/2008 | CN100396880C Method for cementing underground reservoir or repairing sand filling |
| 06/22/2008 | CA2630682A1 Sustainable method for recovery of petroleum |
| 06/19/2008 | WO2008073233A2 Scale squeeze treatment systems and methods |
| 06/19/2008 | WO2008072128A2 Fluid loss control and well cleanup methods |
| 06/19/2008 | WO2008071928A2 Corrosion inhibitor intensifier compositions and associated methods |
| 06/19/2008 | WO2008071808A1 Installation for enhanced oil recovery using water-soluble polymers, method implementing same |
| 06/19/2008 | WO2008071004A1 Drilling fluid compositions and methods of manufacturing |
| 06/19/2008 | WO2008070990A1 Preconditioning an oilfield reservoir |
| 06/19/2008 | WO2008045734A3 In situ fluid formation for cleaning oil-or synthetic-oil-based mud |
| 06/19/2008 | WO2008035279A3 Non-toxic mineral oil and its preparation process as drilling mud base material |
| 06/19/2008 | US20080146466 Non-phosphorus-based gellants for hydrocarbon fluids |
| 06/19/2008 | US20080146465 Viscoelastic Acid |
| 06/19/2008 | US20080146464 Corrosion inhibitor composition comprising a built-in intensifier |
| 06/19/2008 | US20080142226 Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation |
| 06/19/2008 | US20080142220 Fluid Loss Control Agent with Triggerable Removal Mechanism |
| 06/19/2008 | DE102006059511A1 Verfahren zur Herstellung von Acetoncyanhydrin und dessen Folgeprodukten durch gezielte Kühlung A process for producing acetone cyanohydrin and its derivatives by selective cooling |
| 06/19/2008 | CA2672487A1 Preconditioning an oilfield reservoir |
| 06/19/2008 | CA2670233A1 Drilling fluid compositions and methods of manufacturing |
| 06/19/2008 | CA2668856A1 Corrosion inhibitor intensifier compositions and associated methods |
| 06/18/2008 | EP1933004A1 Method of controlling hardening of a compound in a wellbore |
| 06/18/2008 | EP1931745A1 Methods for enhancing aqueous fluid recovery from subterranean formations |
| 06/18/2008 | CN101203465A Method of well treatment and construction |
| 06/18/2008 | CN101200632A Method and technique for preparing low-density propping agent |
| 06/18/2008 | CN101200631A Method for preparing high-performance filming water-base drilling fluid |
| 06/18/2008 | CN100395429C Injection pretreatment method for oil water well |
| 06/18/2008 | CN100395305C Acid surface active agent oil well leaking stoppage technology and its formula |
| 06/17/2008 | US7387987 Rheology modifiers |
| 06/17/2008 | US7387986 amphiphilic polymeric rheology enhancer containing portion that is a partially hydrolyzed polyvinyl ester or partially hydrolyzed polyacrylate; increase rate of shear rehealing of fluids made with cationic, zwitterionic, amphoteric viscoelastic surfactant fluid; oil field drilling treatments, injecting |
| 06/17/2008 | US7387985 comprises aqueous brine and pre-gelatinized crosslinked amylopectin starch; xanthan gum free |
| 06/17/2008 | CA2462994C Methods and compositions for consolidating proppant in subterranean fractures |
| 06/17/2008 | CA2423096C Low residue well treatment fluids and methods of use |
| 06/17/2008 | CA2315374C A method of improving the flow properties of a crude oil or natural gas liquid |
| 06/12/2008 | WO2008070620A1 Dehydrating treatment of oil and gas wells |
| 06/12/2008 | WO2008068660A2 Method of preventing or reducing fluid loss in subterranean formations |
| 06/12/2008 | WO2008068657A2 Method for treating a subterranean formation |
| 06/12/2008 | WO2008068645A1 Heterogeneous proppant placement in a fracture with removable channelant fill |
| 06/12/2008 | WO2008068467A1 Methods of treating subterranean formations using hydrophobically modified polymers and compositions of the same |
| 06/12/2008 | WO2007145731A3 Compressible objects combined with a drilling fluid to form a variable density drilling mud |
| 06/12/2008 | US20080139419 Viscosity Enhancers for Viscoelastic Surfactant Stimulation Fluids |
| 06/12/2008 | US20080139418 adding a slurry of tar sands from strip mining in a batch process a release agent of a fatty acid alkyl ester blend and a lo alkyl glycol ether and/or a water-based alkaline release agent; using ultrasonic cleaning and air to separate and float crude oil products; cyclonic centrifuging; 95% efficient |
| 06/12/2008 | US20080139417 Method of Preventing or Reducing Fluid Loss in Subterranean Formations |
| 06/12/2008 | US20080139416 Fluid Loss Control and Well Cleanup Methods |
| 06/12/2008 | US20080139415 forming droplets in the treatment fluid andplacing the treatment fluid into a subterranean formation to degrade filter cake, in petroleum recovery operations including fracturing; adding polylactic acid antiscaling agent, depolymerization and forming lactic acid |
| 06/12/2008 | US20080139414 Corrosion inhibitor intensifier compositions and associated methods |
| 06/12/2008 | US20080139413 crosslinked unsaturated diene copolymer use in oil recovery operation to control flooding; flexibility, deformability, elasticity and stability, heat resistane; in-depth flow control agents |
| 06/12/2008 | US20080139412 acidification by injecting into well bores an aqueous acidic mixture containing methane sulfonic acid to adjust pH; antiscaling agents for dissolving the scale, increasing permeability |
| 06/12/2008 | US20080139411 Methods of treating subterranean formations using hydrophobically modified polymers and compositions of the same |
| 06/12/2008 | US20080139410 shortening the shear recovery time and increase viscosities by injecting a mixture comprising surfactant selected from cationic, anionic, zwitterionic, and amphoteric surfactants, and a rheology enhancer lignosulfonates derived from wood pulping |
| 06/12/2008 | US20080135302 High Density Brines For Use In Wellbore Fluids |