| 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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| 09/15/2011 | US20110223125 Compositions with freeze thaw stability |
| 09/15/2011 | US20110220418 Oil-based drilling fluid recovery and reuse |
| 09/15/2011 | US20110220360 Application of alkaline fluids for post-flush or post-treatment of a stimulated sandstone matrix |
| 09/15/2011 | US20110220358 Assemblies for the purification of a reservoir or process fluid |
| 09/15/2011 | US20110220353 Use of surfactant mixtures of polycarboxylates for microemulsion flooding |
| 09/15/2011 | CA2792305A1 Process for mineral oil production using cationic surfactants having a hydrophobic block with a chain length of 6 to 10 carbon atoms |
| 09/15/2011 | CA2791119A1 Process for extracting mineral oil using surfactants based on butylene oxide-containing alkyl alkoxylates |
| 09/15/2011 | CA2790913A1 Use of surfactant mixtures of polycarboxylates for microemulsion flooding |
| 09/15/2011 | CA2790891A1 Methods relating to modifying flow patterns using in-situ barriers |
| 09/15/2011 | CA2790840A1 Method of treating a wellbore with a borated galactomannan gum |
| 09/15/2011 | CA2790724A1 Invert drilling fluids having enhanced rheology and methods of drilling boreholes |
| 09/15/2011 | CA2790159A1 Process for producing mineral oil using surfactants based on c16c18-containing alkyl propoxy surfactants |
| 09/14/2011 | CN1965146B Aqueous-based tackifier fluids and methods of use |
| 09/14/2011 | CN102187056A Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir |
| 09/14/2011 | CN102186892A Use of vinyl phosphonic acid for producing biodegradable mixed polymers and the use thereof for exploring and extracting petroleum and natural gas |
| 09/14/2011 | CN102182434A Method for oil displacement by activating indigenous microbes through slow release action |
| 09/14/2011 | CN102181279A Quaternary ammonium salt type surfactant fracturing fluid |
| 09/14/2011 | CN102181278A Composite oil displacement agent |
| 09/14/2011 | CN102181277A Corrosion inhibitor for controlling corrosion of high-concentration hydrogen sulfide in acid liquor medium and preparation method thereof |
| 09/14/2011 | CN102181276A Sulfur dissolving agent for gas field with high sulfur content |
| 09/14/2011 | CN102181275A Composite hydrate inhibitor and application thereof |
| 09/14/2011 | CN102181274A Thixotropic chemical sealing channeling agent |
| 09/14/2011 | CN102181273A Granular volume expansion profile control agent for oil recovery and preparation |
| 09/14/2011 | CN102181272A Anti-collapse and filtration-reducing lubricating agent for drilling fluid, and preparation method and application method thereof |
| 09/14/2011 | CN102181010A Preparation method of high-temperature-resistant high-salt polymer oil-replacement agent |
| 09/14/2011 | CN102181009A Method for preparing temperature-resistant and salt-resistant polymer for drilling fluid |
| 09/14/2011 | CN102181008A Water absorption resin for well repair and leaking stoppage and synthesis method thereof |
| 09/14/2011 | CN102180986A Alkenyl succinic anhydride-modified guar gum fracturing liquid thickening agent and preparation method thereof |
| 09/13/2011 | US8017563 Diverting compositions, fluid loss control pills, and breakers thereof |
| 09/13/2011 | US8017562 Gelled hydrocarbons for oilfield processes, phosphate ester compounds useful in gellation of hydrocarbons and methods for production and use thereof |
| 09/13/2011 | US8017561 Resin compositions and methods of using such resin compositions in subterranean applications |
| 09/13/2011 | US8017560 Fast dissolving hydroxyalkyl guar derivatives |
| 09/13/2011 | US8016039 Method of reducing water influx into gas wells |
| 09/13/2011 | CA2665160C Proppants with soluble composite coatings |
| 09/13/2011 | CA2614272C Water swellable polymers as lost circulation control agents |
| 09/13/2011 | CA2595073C Energized fluids and methods of use thereof |
| 09/09/2011 | WO2011107761A1 Lewis acid as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | WO2011107759A1 Clean viscosified treatment fluids and associated methods |
| 09/09/2011 | WO2011107758A1 Clean viscosified treatment fluids and associated methods |
| 09/09/2011 | WO2011107757A1 Clean viscosified treatment fluids and associated methods |
| 09/09/2011 | WO2011107744A1 Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | WO2011107743A1 Salt of weak bronsted base and bronsted acid as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | WO2011107735A1 Weak organic acid as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | WO2011056410A3 Drill-in fluids for oil and gas reservoirs with high carbonate contents |
| 09/09/2011 | CA2790254A1 Weak organic acid as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | CA2790185A1 Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | CA2790100A1 Lewis acid as gelation retarder for crosslinkable polymer compositions |
| 09/09/2011 | CA2790096A1 Salt of weak base and acid as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110218127 Polycarbonate block copolymers |
| 09/08/2011 | US20110218126 Environmental friendly fracturing and stimulation composition and method of using the same |
| 09/08/2011 | US20110218125 Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same |
| 09/08/2011 | US20110214874 Non-aqueous breaker fluids and methods of use thereof |
| 09/08/2011 | US20110214870 Lost circulation composition |
| 09/08/2011 | US20110214867 Lewis acid as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110214866 Salt of weak bronsted base and bronsted acid as gelation retarder fr crosslinkable polymer compositions |
| 09/08/2011 | US20110214865 Weak organic acid as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110214864 Invert drilling fluids having enhanced rheology and methods of drilling boreholes |
| 09/08/2011 | US20110214862 Particulate bridging agents used for forming and breaking filtercakes on wellbores |
| 09/08/2011 | US20110214857 Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| 09/07/2011 | EP2363573A1 Sealant for forming durable plugs in wells and methods for completing or abandoning wells |
| 09/07/2011 | EP2362888A1 Foamed cement compositions comprising oil-swellable particles and methods of use |
| 09/07/2011 | EP2362887A2 Cement compositions and methods utilizing nano-hydraulic cement |
| 09/07/2011 | EP2362886A1 Method of reducing the viscosity of hydrocarbon fluids |
| 09/07/2011 | EP2164922B1 Low-density composite |
| 09/07/2011 | EP1720954B1 Method of flocculating suspended particles |
| 09/07/2011 | CN102177218A Compositions and methods for inhibiting emulsion formation in hydrocarbon bodies |
| 09/07/2011 | CN102177217A Improved fluid loss compositions and methods of use for subterranean operations |
| 09/07/2011 | CN102174317A Profile control agent suitable for ASP flooding |
| 09/07/2011 | CN102174316A Method for preparing corrosion inhibitor for resisting carbon dioxide/hydrogen sulfide coexistence corrosion |
| 09/07/2011 | CN102174315A Scale removing and inhibiting agent for later-stage oil well with tertiary oil recovery |
| 09/07/2011 | CN102174314A Organic silicon fluid loss additive and preparation method thereof |
| 09/07/2011 | CN101921580B High temperature resistant anti-salt isolation solution and preparation method thereof |
| 09/07/2011 | CN101549266B Preparation of surfactant of double long-chain alkyl lycine and applications thereof |
| 09/07/2011 | CN101544885B Composite microorganism oil-displacing agent |
| 09/06/2011 | US8012914 Hydrolyzes to produce an acid and an alcohol; allowing acid and/or the alcohol to interact with surfactant gel so as to reduce viscosity; orthoacetates, orthoformates, and orthopropionates; subterranean formations, oil wells, gas wells |
| 09/06/2011 | US8012913 Diamine terminated primary amine-aldehyde sulfur converting compositions and methods for making and using same |
| 09/06/2011 | US8012582 Sintered proppant made with a raw material containing alkaline earth equivalent |
| 09/06/2011 | CA2690140C Fluids and techniques for hydrocarbon well completion |
| 09/06/2011 | CA2458493C Sealing composition |
| 09/01/2011 | WO2011106287A1 Salt-tolerant anionic surfactant compositions for enhanced or improved oil recovery (eor or ior) applications |
| 09/01/2011 | WO2011104503A1 Epoxy acid based biodegradable set retarder for a cement composition |
| 09/01/2011 | WO2011103969A2 Process for the co-encapsulation of biocidally active compounds in clay minerals functionalized by nitrogen compounds |
| 09/01/2011 | WO2009141749A3 System and method for low damage gravel packing |
| 09/01/2011 | US20110212862 Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid |
| 09/01/2011 | CA2789263A1 Epoxy acid based biodegradable set retarder for a cement composition |
| 08/31/2011 | EP2361289A1 Crystalline ceramic particles |
| 08/31/2011 | CN102167970A Low-density water bonding well control fluid |
| 08/31/2011 | CN102167969A Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same. |
| 08/31/2011 | CN102167751A Modified polysaccharides |
| 08/31/2011 | CN101619300B Sphingomonas sp. TP-5 , method and application thereof for producing welan gum |
| 08/31/2011 | CN101575503B High-strength fracturing propping agent for petroleum and preparation method thereof |
| 08/31/2011 | CN101089118B Acidifying agent composition |
| 08/30/2011 | US8008236 Hydrolyzes to produce an acid and an alcohol; allowing acid and/or the alcohol to interact with surfactant gel so as to reduce viscosity; orthoacetates, orthoformates, and orthopropionates; subterranean formations, oil wells, gas wells |
| 08/30/2011 | US8008235 Permeability-modifying drilling fluids and methods of use |
| 08/30/2011 | US8008234 Method and composition comprising at least three different average particle volume particulates for low damage gravel packing |
| 08/30/2011 | US8006761 Wellbore fluid comprising a base fluid and a particulate bridging agent |
| 08/30/2011 | CA2528448C Methods for controlling particulate segregation in slurries |
| 08/30/2011 | CA2518799C Reverse circulation cementing system and method |
| 08/30/2011 | CA2478195C Improved hydrocarbon fluids |
| 08/25/2011 | US20110207845 Macromolecular, amphiphilic compounds as water retention agents for construction chemistry systems, in particular for well cementing |