| 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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| 05/02/2013 | US20130105154 Well treatment agents coated with alternating layers of polyionic materials and methods of using the same |
| 05/02/2013 | CA2853628A1 Delayed, swellable particles for prevention of fluid migration through damaged cement sheaths |
| 05/02/2013 | CA2852651A1 Process for producing mineral oil using surfactants based on a mixture of c24 guerbet-, c26 guerbet-, c28 guerbet-containing hydrocarbyl alkoxylates |
| 05/02/2013 | CA2851539A1 Slag compositions comprising latex and methods of use |
| 05/02/2013 | CA2851520A1 Compositions and methods useful for oil extraction |
| 05/02/2013 | CA2851421A1 Process for producing mineral oil using surfactants based on a mixture of c20 guerbet-, c22 guerbet-, c24 guerbet-containing hydrocarbyl alkoxylates |
| 05/02/2013 | CA2851382A1 Methods for producing authigenic rock mineral for altering rock hydrology |
| 05/02/2013 | CA2849333A1 Polyurethane powder blend with redispersible polymer powder for cement compositions |
| 05/02/2013 | CA2848961A1 Process for producing mineral oil using surfactants based on a mixture of c28 guerbet-, c30 guerbet-, c32 guerbet-containing hydrocarbyl alkoxylates |
| 05/01/2013 | EP2586845A1 Compositions and methods for completing subterranean wells |
| 05/01/2013 | EP2586754A1 Compositions and methods for completing subterranean wells |
| 05/01/2013 | EP2585553A1 Method of removing water-based filter cake |
| 05/01/2013 | EP2585552A1 Acid-soluble cement compositions comprising cement kiln dust and/or a natural pozzolan and methods of use |
| 05/01/2013 | EP2585551A1 Methods of plugging and abandoning a well using compositions comprising cement kiln dust and pumicite |
| 05/01/2013 | EP2585414A1 Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use |
| 05/01/2013 | CN103080468A A method for treatment of subterranean sites adjacent to water injection wells |
| 05/01/2013 | CN103080176A Fluorinated ethoxylated polyurethanes |
| 05/01/2013 | CN103075132A Echelon releasing method for underground solid anticorrosion and antiscale agents |
| 05/01/2013 | CN103074050A Anti-scaling multi-hydrogen retarded acid for highly argillaceous sandstone reservoir |
| 05/01/2013 | CN103074049A Fracturing fluid prepared by recovery waste water of crude oil and preparation method of fracturing fluid |
| 05/01/2013 | CN103074048A Development of ultra-low temperature (0-30 DEG C) fracturing fluid system |
| 05/01/2013 | CN103074047A Fracturing agent and fracturing method of coalbed methane horizontal well |
| 05/01/2013 | CN103074046A Completion fluid used for removing filter cake formed by oil-based drilling fluid and preparation method thereof |
| 05/01/2013 | CN103074045A Anti-gas channeling toughening cement slurry for well cementation of small-gap annular horizontal well |
| 05/01/2013 | CN103074044A Oil well cement additive used for preventing H2S/CO2 co-corrosion, and preparation method and application thereof |
| 05/01/2013 | CN103074043A Additive for well cementing cement mortar, and preparation and application methods thereof |
| 05/01/2013 | CN103074042A Drilling fluid and preparation method thereof |
| 05/01/2013 | CN103074041A Defoaming agent for water-based drilling fluid and preparation method thereof |
| 05/01/2013 | CN103073679A Method for producing polyacrylamide microsphere water shutoff agent |
| 05/01/2013 | CN103071424A Medium-high temperature resistant viscoelasticity surfactant, clean fracturing fluid and preparation method |
| 05/01/2013 | CN102453480B Clean viscous acid for acid fracturing of carbonate reservoir |
| 05/01/2013 | CN102408884B Self-overflowing sealant and preparation method thereof |
| 05/01/2013 | CN102408883B Preparation method of high-temperature-resistant polyamine salt inhibitor for drilling fluid |
| 05/01/2013 | CN102352238B Method for preparing acid resistance fracturing proppant |
| 05/01/2013 | CN102226076B Strongly-inhibitive collapse-prevention low-damage drilling fluid |
| 05/01/2013 | CN102061153B Crude oil emulsifying agent for water plugging of oil well and preparation method thereof |
| 05/01/2013 | CN102051164B Surfactant for oil field and preparation method of surfactant |
| 05/01/2013 | CN102020980B Composition used for preventing formation water lock and application thereof |
| 05/01/2013 | CN102002355B Friction-reducing agent of fracturing fluid and preparation method thereof |
| 05/01/2013 | CN101942294B Offshore drilling fluid system and preparation method thereof |
| 04/30/2013 | CA2720382C Organic corrosion inhibitor package for organic acids |
| 04/30/2013 | CA2703789C Graft copolymer as a gas hydrate inhibitor |
| 04/30/2013 | CA2668856C Corrosion inhibitor intensifier compositions and associated methods |
| 04/30/2013 | CA2658155C Cementing compositions comprising cement kiln dust, vitrified shale, zeolite, and/or amorphous silica utilizing a packing volume fraction, and associated methods |
| 04/30/2013 | CA2645920C Low heat of hydration cement compositions and methods of using same |
| 04/30/2013 | CA2582275C Self-cleaning well control fluid |
| 04/27/2013 | CA2791670A1 Well treatment agents coated with alternating layers of polyionic materials and methods of using the same |
| 04/25/2013 | WO2013059103A1 Novel high density brines for completion applications |
| 04/25/2013 | WO2013059082A1 Hydrophobically modified polymer for thermally stabilizing fracturing fluids |
| 04/25/2013 | WO2013059058A1 Low dosage kinetic hydrate inhibitors for natural gas production systems |
| 04/25/2013 | WO2013059031A1 Method for sea floor drilling using hagfish slime as drilling fluid additive |
| 04/25/2013 | WO2013057044A1 Use of tris(2-hydroxyphenyl)methane derivatives for tertiary petroleum production |
| 04/25/2013 | WO2013022648A3 Electrolytic composition for degrading polymeric filter cake |
| 04/25/2013 | WO2012173948A3 Additives for improving hydrocarbon recovery |
| 04/25/2013 | WO2012121896A3 Well treatment methods and systems |
| 04/25/2013 | WO2012085516A3 Drilling fluids having reduced sag potential and related methods |
| 04/25/2013 | US20130102816 Method for reducing the viscosity of viscous fluids |
| 04/25/2013 | US20130102505 Process for producing mineral oil using surfactants based on a mixture of c28 guerbet, c30 guerbet, c32 guerbet-containing hydrocarbyl alkoxylates |
| 04/25/2013 | US20130102504 Process for producing mineral oil using surfactants based on a mixture of c20 guerbet-, c22 guerbet-, c24 guerbet-containing hydrocarbyl alkoxylates |
| 04/25/2013 | US20130102503 Clarifying and stabilizing composition |
| 04/25/2013 | US20130098615 Novel high density brines for completion applications |
| 04/25/2013 | US20130098612 Process for producing mineral oil using surfactants based on a mixture of c24 guerbet-, c26 guerbet-, c28-guerbet containing hydrocarbyl alkoxylates |
| 04/25/2013 | US20130098611 Alkaline persulfate for low-temperature breaking of polymer viscosified fluid |
| 04/25/2013 | US20130098273 Cement composition containing a substituted ethoxylated phenol surfactant for use in an oil-contaminated well |
| 04/25/2013 | CA2851519A1 Method for sea floor drilling using hagfish slime as drilling fluid additive |
| 04/25/2013 | CA2851326A1 Use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production |
| 04/25/2013 | CA2849512A1 Novel high density brines for completion applications |
| 04/24/2013 | EP2584018A1 Biocide for well stimulation |
| 04/24/2013 | EP2582645A1 A fluid loss additive containing a biodegradable grafted copolymer for a cement composition |
| 04/24/2013 | CN103068949A Wellbore servicing fluid comprising a cellulose ether |
| 04/24/2013 | CN103061725A Hydrocarbon recovery process |
| 04/24/2013 | CN103059830A Penetration agent for oil well, and preparation method as well as application thereof |
| 04/24/2013 | CN103059829A Nanometer emulsion type water control fracturing fluid for tight gas reservation well and preparation method thereof |
| 04/24/2013 | CN103059828A Thickening agent used for water base fracturing fluid and synthetic method thereof |
| 04/24/2013 | CN103059827A Construction method for preparing workover fluid based on liquid polymer |
| 04/24/2013 | CN103059826A Foam water-drainage agent and its aqueous solution |
| 04/24/2013 | CN103059825A Corrosion inhibitor for oil wells and preparation method |
| 04/24/2013 | CN103059824A First boundary casing anti-corrosion cement slurry for well cementation and preparation method thereof |
| 04/24/2013 | CN103059823A Rotary drilling rig drilling flushing fluid and preparation method thereof |
| 04/24/2013 | CN103059822A Foaming agent for forming CO2 foams and preparation method thereof |
| 04/24/2013 | CN103059821A Preparation method of drilling fluid diluent compound methyl silicate |
| 04/24/2013 | CN103059217A Temperature and salt resistant hydrophobic association polymer oil displacement agent and its preparation method |
| 04/24/2013 | CN103059205A Chemical water shutoff agent applied to poly(acrylic acid-acrylamide) dicopolymerized synthesized extract oil |
| 04/24/2013 | CN103058895A Heat resistance and salt tolerance type polyether sulfonic acid salt and synthetic method thereof |
| 04/24/2013 | CN102533602B Pseudomonas aeruginosa, and culture method and application thereof |
| 04/24/2013 | CN102443383B High-dehydration hardenable plugging sealing agent |
| 04/24/2013 | CN102382635B Viscosity reducer for gathering and transferring of single pipes and preparation method thereof |
| 04/24/2013 | CN102337115B Propping agent for mining and fracturing of coal bed methane and preparation method thereof |
| 04/24/2013 | CN102321464B Corrosion and scale inhibitor for oil well in high water cut stage |
| 04/24/2013 | CN102320857B Preparation method of artificial sand for sand prevention of oil-producing well and application thereof |
| 04/24/2013 | CN102250606B Microemulsion for heavy oil thermal recovery and preparation method for microemulsion |
| 04/24/2013 | CN102250605B Surfactant formula system for oil displacement and application thereof in tertiary oil recovery |
| 04/24/2013 | CN102234501B Ocean deepwater water-based constant-rheology drilling fluid |
| 04/24/2013 | CN102226281B Non-aldehyde acidification corrosion inhibitor and preparation method thereof |
| 04/24/2013 | CN102220114B 200-DEG C resistant cement paste for well cementation |
| 04/24/2013 | CN102212348B Foam scrubbing agent with salt resistance and methanol resistance |
| 04/24/2013 | CN102199420B Temporary plugging agent for staged fracturing of horizontal well and preparation method thereof |
| 04/24/2013 | CN102191031B Production method for manufacturing quartz fracturing sand special for oil field |
| 04/24/2013 | CN102191024B Curable leak-stopping agent |
| 04/24/2013 | CN102191023B Temporary plugging agent for medium/high-temperature oil-gas reservoir |