| 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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| 08/04/2011 | US20110190171 Low toxicity shale hydration inhibition agent and method of use |
| 08/04/2011 | US20110188946 Method of stabilising a blasthole |
| 08/04/2011 | CA2794922A1 Water-soluble polymers for oil recovery |
| 08/04/2011 | CA2788312A1 Styrylphenol alkoxylate sulfate as a new surfactant composition for enhanced oil recovery applications |
| 08/04/2011 | CA2787381A1 Use of reactive solids and fibers in wellbore clean-out and stimulation applications |
| 08/04/2011 | CA2782120A1 Drilling fluids |
| 08/03/2011 | EP2350228A1 A proppant |
| 08/03/2011 | EP2350227A1 Method for intervention operations in subsurface hydrocarbon formations |
| 08/03/2011 | EP2350226A1 Settable compositions comprising cement kiln dust and swellable particles |
| 08/03/2011 | EP2350225A1 Microemulsifiers and methods of making and using same |
| 08/03/2011 | EP2349978A1 Gemini surfactants |
| 08/03/2011 | EP2066759B1 Precipitated weighting agents for use in wellbore fluids |
| 08/03/2011 | CN201915052U 一种溶解疏水缔合聚合物的拉伸装置 A stretching device hydrophobic associating polymer is dissolved |
| 08/03/2011 | CN102141522A Method for evaluating pour point depressing paraffin inhibitor by photomicrography of dispersion of paraffin crystals |
| 08/03/2011 | CN102140909A Method for reducing viscosity of heavy oil by emulsification |
| 08/03/2011 | CN102140338A Fluorocarbon surfactant binary composite foam flooding system |
| 08/03/2011 | CN102140337A Hydrophobically associating hydroxyethylcellulose oil displacement agent |
| 08/03/2011 | CN102140336A Indigenous microbial sustained-release long-acting nutrient for oil recovery |
| 08/03/2011 | CN102140335A Alkali-free oil displacement agent containing double long-chain s-triazine type ampholytic surfactant |
| 08/03/2011 | CN102140334A Oil-in-water drilling fluid suitable for different kinds of furnish preparation water and oils |
| 08/03/2011 | CN101724082B Method for preparing modified starch polymer |
| 08/03/2011 | CN101570687B Oilfield injection friction-reducing agent and application thereof |
| 08/03/2011 | CN101544884B Foam washing fluid and preparation method thereof |
| 08/03/2011 | CN101538462B Oil well cleanup additive |
| 08/03/2011 | CN101538459B Oil well pollution-free paraffin removing and viscosity reducing agent |
| 08/03/2011 | CN101538458B Oil well dispersive wax-proofing agent and preparation method thereof |
| 08/03/2011 | CN101538457B Input well composite blockage relieving agent and preparation method thereof |
| 08/02/2011 | US7989404 Compositions and methods for gas well treatment |
| 08/02/2011 | US7989403 Corrosion inhibitors containing amide surfactants for a fluid |
| 08/02/2011 | US7989402 Montmorillonite clay and diquaternary ammonium compounds; gas/oil wells |
| 08/02/2011 | US7989401 Block copolymers for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/02/2011 | US7989400 gelling agent is heteropolysaccharide diutan, and reducing the viscosity of the viscosified treatment fluid using an encapsulated breaker that comprises a peroxide and a coating material |
| 08/02/2011 | US7989399 Drilling fluid and methods |
| 08/02/2011 | US7989398 Vesicles for carrying through conduit, separated by surface active material bilayer composed of phospholipids, alkyl polyglycosides, gemini surfactants, sorbitan monooleate, and/or sorbitan trioleate |
| 08/02/2011 | US7989397 Methods and compositions relating to the reduction of volatile phosphorus from crude |
| 08/02/2011 | US7987907 Hydrocarbon recovery process |
| 08/02/2011 | CA2653093C Downhole servicing compositions having high thermal conductivities and methods of using the same |
| 08/02/2011 | CA2617155C Wellbore fluids for casing drilling |
| 08/02/2011 | CA2611841C Subterranean treatment fluids, friction reducing copolymers, and associated methods |
| 07/28/2011 | WO2011089323A1 Agent and composition for oilfield applications |
| 07/28/2011 | WO2011089151A2 Method for producing methane gas |
| 07/28/2011 | WO2011088556A1 Compositions and methods for enhancing fluid recovery for hydraulic fracturing treatments |
| 07/28/2011 | WO2011037975A3 Method of manufacture and use of large hydrophobe ether sulfate surfactants in enhanced oil recovery (eor) applications |
| 07/28/2011 | WO2011034807A3 Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants |
| 07/28/2011 | WO2011031946A3 Compositions and methods for controlling the stability of ethersulfate surfactants at elevated temperatures |
| 07/28/2011 | WO2011031920A3 Process of using hard brine at high alkalinity for enhanced oil recovery (eor) applications |
| 07/28/2011 | WO2009083801A8 Drilling fluid additive and methods of stabilizing kaolinite fines migration |
| 07/28/2011 | US20110183875 Vulcanisable guanidine-free mixtures containing ethylene acrylate (AEM), polyacrylate (ACM) and/or hydrogenated acrylnitrile (HNBR)-based rubbers compounds, vulcanisates, prepared by cross-linking this vulcanisable mixtures and their use |
| 07/28/2011 | US20110183874 Lost circulation material for oilfield use |
| 07/28/2011 | US20110183873 Open-Hole Wellbore Lining |
| 07/28/2011 | US20110183872 Methods for gas well treatment |
| 07/28/2011 | US20110183871 Method and composition for curing lost circulation |
| 07/28/2011 | US20110182135 Enhanced Slurrification Method |
| 07/28/2011 | CA2787132A1 Compositions and methods for enhancing fluid recovery for hydraulic fracturing treatments |
| 07/28/2011 | CA2786831A1 Agent and composition for oilfield applications |
| 07/27/2011 | EP2348089A1 Water-soluble polymers for oil recovery |
| 07/27/2011 | EP2346961A1 Controlling bioavailability of nutrient additions in subsurface formations |
| 07/27/2011 | EP2346960A1 Inhibitive water-based drilling fluid system and method for drilling sands and other water-sensitive formations |
| 07/27/2011 | EP2029693B1 Highly branched polymeric materials as surfactants for oil-based muds |
| 07/27/2011 | CN102137726A Method for binding non-solid oxidic inorganic materials with etherified aminoplast resins and cured compositions of said materials and etherified aminoplast resins |
| 07/27/2011 | CN102134979A New method for forming manual well wall in oil and gas well by water-absorbing resin |
| 07/27/2011 | CN102134481A Carboxymethyl-hydroxypropyl guar gum water-base fracturing fluid |
| 07/27/2011 | CN102134480A Water plugging agent and preparation method thereof |
| 07/27/2011 | CN102134479A Preparation method of nano calcium carbonate-starch composite for drilling fluid |
| 07/27/2011 | CN102134478A Controllable expandable lost circulation additive for petroleum drilling and production process thereof |
| 07/27/2011 | CN102134477A Clay-free low-density oil-based drilling fluid |
| 07/27/2011 | CN102134476A Hydrophobic temporary plugging drilling fluid |
| 07/27/2011 | CN102134391A High molecular polymeric reinforced water-plugging grouting material for underground engineering and construction technology thereof |
| 07/27/2011 | CN102134283A Preparation method of associated modified xanthan gum |
| 07/27/2011 | CN101570685B Quick curing agent for coating sand |
| 07/27/2011 | CN101220261B Protective agent for drilling fluids at high temperature and manufacturing technology thereof |
| 07/26/2011 | US7985718 Use of surfactant mixtures for tertiary mineral oil extraction |
| 07/26/2011 | US7985717 Methods of using drilling fluids containing biodegradable organophilic clay |
| 07/26/2011 | CA2689452C The use of sized barite as a weighting agent for drilling fluids |
| 07/26/2011 | CA2621829C Foamed settable compositions comprising cement kiln dust, and methods of using them |
| 07/26/2011 | CA2616553C Aluminum silicate proppants, proppant production and application methods |
| 07/26/2011 | CA2561920C Gelled oil with surfactant |
| 07/21/2011 | WO2011086361A1 Surfactants and friction reducing polymers for the reduction of water blocks and gas condensates and associated methods |
| 07/21/2011 | WO2011086360A1 Treatment fluids for wetting control of multiple rock types and associated methods |
| 07/21/2011 | WO2011086359A1 Surfactants for reduction of water blocks and/or gas condensates and associated methods |
| 07/21/2011 | WO2011064292A3 Polyester amide foamers |
| 07/21/2011 | WO2011038125A3 Method for handling viscous liquid crude hydrocarbons |
| 07/21/2011 | WO2011028930A3 Di-functional surfactants for enhanced oil recovery |
| 07/21/2011 | WO2010143312A8 Cement slurry composition |
| 07/21/2011 | WO2008058015A3 Methods to enhance the pneumatic handling characteristics of weighting agents |
| 07/21/2011 | US20110177986 Method of Increasing pH of High-Density Brines |
| 07/21/2011 | US20110177985 Surfactants for Reduction of Water Blocks and/or Gas Condensates and Associated Methods |
| 07/21/2011 | US20110177984 Tagged Propping Agents and Related Methods |
| 07/21/2011 | US20110177983 Cationic fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same |
| 07/21/2011 | US20110177982 Apparatus, compositions, and methods of breaking fracturing fluids |
| 07/21/2011 | US20110177981 Wellbore fluids comprising poly(trimethylene ether) glycol polymers |
| 07/21/2011 | CA2785293A1 Surfactants for reduction of water blocks and/or gas condensates and associated methods |
| 07/21/2011 | CA2785075A1 Treatment fluids for wetting control of multiple rock types and associated methods |
| 07/21/2011 | CA2690768A1 Compositions and methods for enhancing fluid recovery for hydraulic fracturing treatments |
| 07/20/2011 | EP1776198B1 Process for stimulating production of methane from petroleum in subterranean formations |
| 07/20/2011 | EP1765529B1 Process for stimulating production of hydrogen from petroleum in subterranean formations |
| 07/20/2011 | CN1930266B Additive for viscoelastic fluid |
| 07/20/2011 | CN102131890A Enhanced oil recovery using sulfonate mixtures |
| 07/20/2011 | CN102131889A Methods of treating a hydrocarbon-bearing formation, a well bore, and particles |
| 07/20/2011 | CN102131888A 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 |