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)
06/2011
06/08/2011CN102086382A Water-based drilling fluid
06/08/2011CN102086381A Saturated salt water drilling fluid
06/08/2011CN102086380A High-density saturated salt water drilling fluid
06/08/2011CN102086379A Method for preparing high-density water-based drilling fluid
06/08/2011CN102086378A Drilling fluid helping to protect oil-gas bed
06/08/2011CN102086377A Low-density water-based waste drilling slurry solidifying agent
06/08/2011CN102086248A Polyacrylamide microgel as well as preparation method and application thereof
06/08/2011CN102086238A Kneading method for preparing myristyl grafted carboxymethyl guar gum
06/08/2011CN102086170A Synthetic method of novel corrosion inhibitor dithiocarbamate for completion fluid
06/08/2011CN102086163A Preparation method and application of high temperature and high salinity stabilizer for drilling fluid
06/08/2011CN101759726B Preparation process of chromium lignin sulfonate attenuant for drilling fluid
06/08/2011CN101196109B Three-segment type block releasing technique for oil layer
06/07/2011US7956017 Aggregating reagents, modified particulate metal-oxides and proppants
06/07/2011US7956016 Methods to control fluid loss in a well bore
06/07/2011US7956015 Equivalent circulating density control in deep water drilling
06/07/2011US7956014 Self-breakable yield point enhancer for oil based drilling mud
06/07/2011US7956013 Compositions having pH-dependent viscosity, thickener systems containing the same, and uses therefor
06/07/2011US7956012 Oil field treatment fluids with viscosified brines
06/07/2011US7954548 Proppant for hydraulic fracturing of oil and gas wells
06/07/2011CA2515063C Methods of improving conformance control in fractured hydrocarbon reservoirs
06/07/2011CA2500840C Additives for preparing rheology-modified aqueous fluids
06/04/2011CA2722868A1 Phosphate ester oil gellant
06/03/2011WO2011064292A2 Polyester amide foamers
06/03/2011WO2011063459A1 Compositions and methods for inhibiting naphthenate solids formation from liquid hydrocarbons
06/03/2011CA2719610A1 Fluid composition comprising anti-accretion additives and methods of use thereof
06/02/2011US20110130505 Gypsum wallboard
06/02/2011US20110130312 Method of secondary oil recovery
06/02/2011US20110127039 System, method, and apparatus for acid fracturing with scale inhibitor protection
06/01/2011EP2326694A1 Improved fluid loss compositions and methods of use for subterranean operations
06/01/2011CN102083940A Methods for treating hydrocarbon-bearing formations having brine
06/01/2011CN102083939A Methods and aqueous based wellbore fluids for reducing wellbore fluid loss and filtrate loss
06/01/2011CN102083938A High density breaker fluids and methods of use thereof
06/01/2011CN102083937A Use, as thickening agent, of a salty aqueous formulation of a water-soluble cross-linked and hydrophobically-modified acrylic copolymer
06/01/2011CN102083936A Wellbore fluids containing sized clay material and methods of use thereof
06/01/2011CN102079973A Circulated stable foams
06/01/2011CN102079972A Saturated saltwater mud
06/01/2011CN102079799A Preparation method of binary polymer wax oil pour point reducer
05/2011
05/31/2011US7951755 Emulsified polymer drilling fluid and methods of preparation
05/31/2011US7951754 Environmentally friendly bis-quaternary compounds for inhibiting corrosion and removing hydrocarbonaceous deposits in oil and gas applications
05/31/2011CA2643935C Methods of preparing hydrocarbon, water and organophilic clay emulsions and compositions thereof
05/31/2011CA2435629C Fracturing fluid base oil
05/27/2011CA2686508A1 Process and process line for the preparation of hydraulic fracturing fluid
05/26/2011WO2011063148A1 Water control additive compounds and methods of making and using same
05/26/2011WO2011063021A1 Surfactant based viscoelastic fluids and methods of using the same
05/26/2011WO2011063004A1 Light-weight proppant from heat-treated pumice
05/26/2011WO2011062988A2 A method of making a synthetic alkylaryl sulfonate
05/26/2011WO2011061504A2 Compositions and systems for combatting lost circulation and methods of using the same
05/26/2011WO2011061497A1 Self-diverting high-rate water packs
05/26/2011WO2011060897A2 Compositions and methods for mitigation of annular pressure buildup in subterranean wells
05/26/2011WO2011038861A3 Method and composition to prevent fluid mixing in pipe
05/26/2011US20110124534 Non-phosphorus-based gellant for hydrocarbon fluids
05/26/2011US20110124533 Method of scale inhibition
05/26/2011US20110124532 Fluorinated ether silanes and methods of using the same
05/26/2011US20110124531 Composition of Specifically Formulated Phosphate Salts, Used for Increasing Density of Completion Fluids, and as a Hi-Temperature and Easy to Use Completion Fluids in the Oil and Gas Industry
05/26/2011US20110120716 Compositions and Methods for Mitigation of Annular Pressure Buildup in Subterranean Wells
05/26/2011US20110120715 Self adaptive cement systems
05/26/2011CA2780903A1 A method of making a synthetic alkylaryl sulfonate
05/26/2011CA2780311A1 Method of using sodium silcate in treatment of subteraneant formation for water control
05/26/2011CA2780277A1 Light-weight proppant from heat-treated pumice
05/26/2011CA2779412A1 Surfactant based viscoelastic fluids and methods of using the same
05/25/2011EP2325278A1 Polycationic viscoelastic compositions
05/25/2011EP2325277A2 High density brines for use in wellbore fluids
05/25/2011EP2324196A1 Hydraulic fracturing proppants
05/25/2011EP2324095A1 Compositions and methods for inhibiting emulsion formation in hydrocarbon bodies
05/25/2011EP2324094A2 Thermoplastic cellulosic fiber blends as lost circulation materials
05/25/2011EP2324093A1 Method of carrying out a wellbore operation
05/25/2011CN102076810A Method of secondary oil recovery
05/25/2011CN102076809A Method for changing wettability of rock formations
05/25/2011CN102076808A Suspension of concentrated particulate additives containing oil for fracturing and other fluids
05/25/2011CN102071919A Oil-gas well fiber assisted water control fracturing method
05/25/2011CN102071008A Method for preparing composite surfactant for in-situ leaching uranium mining
05/25/2011CN102071007A Acid-resisting ceramsite fracturing propping agent and preparation method thereof
05/25/2011CN102071006A Petroleum support agent prepared from oil shale waste and preparation method thereof
05/25/2011CN102071005A High-temperature acidification corrosion inhibitor and preparation method thereof
05/25/2011CN102071004A Oligomer acidic fracturing fluid
05/25/2011CN102071003A High temperature resistant delay crosslinking polymer deep profile control agent
05/25/2011CN102070909A 阳离子改性沥青及其制备方法 Cation-modified asphalt and its preparation method
05/25/2011CN102070754A Novel anionic thermal tackifying water-soluble polymer
05/25/2011CN102070749A Method for preparing wax-containing crude oil pour point depressant
05/24/2011US7947745 Reducing the viscosity of an aqueous fluid
05/24/2011US7947633 Polycationic viscoelastic compositions
05/24/2011US7947632 Gelled hydrocarbons for oilfield processes, phosphate ester compounds useful in gellation of hydrocarbons and methods for production and use thereof
05/24/2011US7947631 Gelled hydrocarbons for oilfield processes and methods of use
05/24/2011US7947630 Compositions comprising at least two different polymeric microparticles and methods for recovering hydrocarbon fluids from a subterranean reservoir
05/24/2011US7947629 Method of acidizing sandstone formations
05/24/2011US7947628 Method of improving solids separation efficiency
05/24/2011US7947627 Fluid loss control agent with triggerable removal mechanism
05/24/2011US7946342 In situ generation of steam and alkaline surfactant for enhanced oil recovery using an exothermic water reactant (EWR)
05/24/2011CA2648708C Rheology modifiers
05/24/2011CA2560423C Fluid with asphaltene control
05/24/2011CA2471155C Improved internal breaker
05/19/2011WO2010141541A3 Fluorinated polymeric microparticles and uses thereof as fluid reducing additives
05/19/2011US20110118382 Graft copolymers, method for the production thereof, and use thereof
05/19/2011US20110118381 Inverse Emulsion Polymers as Lost Circulation Material
05/19/2011US20110118155 Light-weight proppant from heat-treated pumice
05/19/2011US20110118154 Method of making a synthetic alkylaryl sulfonate
05/19/2011US20110118153 Method of continuous dissolution of polyacrylamide emulsions for enhanced oil recovery (eor)
05/19/2011US20110118152 Novel method for the treatment of rock formations and novel polyampholytes
05/19/2011US20110117067 Glucanases, Nucleic Acids Encoding Them and Methods for Making and Using Them
05/19/2011US20110114322 Surfactant based viscoelastic fluids and methods of using the same