| 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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| 04/12/2007 | CA2640408A1 Cement composition for carbon dioxide supercritical environment |
| 04/12/2007 | CA2624445A1 Methods for enhancing aqueous fluid recovery from subterranean formations |
| 04/11/2007 | EP1552107B1 Fracture stimulation process for carbonate reservoirs |
| 04/11/2007 | CN1944952A Polymer flooding method for secondary oil layer |
| 04/11/2007 | CN1944573A Zeolite profile control agent and method for injecting zeolite profile control agent into profile control well |
| 04/11/2007 | CN1944572A Process for preparing thick oil hydrothermally catalytic cracking viscosity reducer containing amphiphilic structure |
| 04/11/2007 | CN1944571A Liquid film type microcapsule deep water blocking agent and its preparing method |
| 04/11/2007 | CN1944570A Low fluorescence lubricant for well drilling liquid and its producing method |
| 04/11/2007 | CN1944314A Cement low temperature coagulant for oil well |
| 04/11/2007 | CN1309930C Method and compound for inhibiting plugging of conduits by gas hydrates |
| 04/11/2007 | CN1309800C Secondary heat and secondary foam fracturing fluid |
| 04/11/2007 | CN1309799C Low foamability drilling fluid and its preparation method |
| 04/11/2007 | CN1309798C Follow-drilling plugging agent and its preparation method and use |
| 04/11/2007 | CN1309742C Method for reducing molecular weight of polysaccharides by electron beams |
| 04/10/2007 | US7201798 For use in subterranean formations |
| 04/10/2007 | CA2296741C Fluids useful for oil mining comprising de-acetylated xanthane gum and at least one compound increasing the medium ionic strength |
| 04/05/2007 | WO2007036579A2 Precursor compositions for ceramic products |
| 04/05/2007 | WO2005021147A3 High strength polycrystalline ceramic spheres |
| 04/05/2007 | US20070078068 Hydraulic fluids |
| 04/05/2007 | US20070078064 Treatment fluids and methods of forming degradable filter cakes and their use in subterranean formations |
| 04/05/2007 | US20070078063 drilling a well bore in a subterranean formation using a subterranean treatment fluid: an aqueous fluid, a viscosifier, a fluid loss control additive, a degradable polymeric bridging agent, and a solvent; partial plasticizing the degradable polymer, allowing fluid to form a self-degradable filter-cake |
| 04/05/2007 | US20070078062 Invert drilling fluids and methods of drilling boreholes |
| 04/05/2007 | US20070078061 Fluid loss prevention; suspends weighting agent and/or drill cuttings when stresses or forces are reduced or removed; invert emulsion base, emulsifier, weighting agent, rheology modifier and filtration control agent |
| 04/05/2007 | US20070078060 Invert drilling fluids and methods of drilling boreholes |
| 04/04/2007 | EP1770073A1 Cement composition for a carbon dioxide supercritical environment |
| 04/04/2007 | EP1769134A1 Scale inhibition method |
| 04/04/2007 | EP1633953B1 Substances to stimulate the extraction of crude oil and a method of processing them |
| 04/04/2007 | CN1942550A 粘弹性酸 Viscoelastic acid |
| 04/04/2007 | CN1940010A Heavy acid-fluid formula |
| 04/04/2007 | CN1940009A Heavy cracking-fluid formula |
| 04/04/2007 | CN1940008A Deep adjusting water blocking agent of self-crosslinked shell acrylamide multipolymer and its production |
| 04/04/2007 | CN1308570C Tunnel boring method and aqueous foam used therein |
| 04/04/2007 | CN1308413C Oil well acidizing fluid containing organic phosphinic acid |
| 04/03/2007 | US7199086 Cement kiln dust, water and fly ash, hydrated lime an oil external emulsion of oil, water, CKD, an emulsifying surfactant, and a set retarding additive; subterranean operations |
| 04/03/2007 | US7199085 High pressure; mixture containing surfactant and stabilizer |
| 04/03/2007 | US7199084 Concentrated suspensions |
| 04/03/2007 | US7199083 For circulation through a well, such as those used to produce hydrocarbons and steam, during drilling operations |
| 04/03/2007 | US7198106 Method for enhancing gas well secondary recovery operations |
| 04/03/2007 | US7198104 Introducing a mixture of a hydraulic cement and an invert emulsion of oil, water, and an emulsifying surfactant (e.g., tallow diamine substituted with 3 moles of ethylene oxide) into the formation; stable for up to 3 weeks and easily displaced after being static in the well bore for more than a week |
| 04/03/2007 | CA2554115C A wellbore fluid comprising an oil phase |
| 04/03/2007 | CA2396252C Rheology modified compositions and modification agents |
| 03/29/2007 | WO2007033477A1 Fluid with asphaltene control |
| 03/29/2007 | WO2006111703A3 Compositions and methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation |
| 03/29/2007 | US20070072776 Polyols for breaking of fracturing fluid |
| 03/28/2007 | EP1767611A2 Additive for crude oils. |
| 03/28/2007 | EP1766185A2 System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants |
| 03/28/2007 | EP1766184A1 Use of lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings |
| 03/28/2007 | EP1766037A1 Generation of hydrogen from hydrocarbon-bearing materials |
| 03/28/2007 | EP1765529A1 Process for stimulating production of hydrogen from petroleum in subterranean formations |
| 03/28/2007 | CN1935934A Ternary composite drive-collect-convey system anti-deposition agent and its preparing method |
| 03/28/2007 | CN1935933A Mine contractible combined wall sliding layer composite material and preparing process |
| 03/28/2007 | CN1307280C Polymeric alochol biopolymer saturated salt-water drilling fluid |
| 03/27/2007 | US7196041 Anionic and cationic surfactants having branched aliphatic chains used as reversible well bore fluid thickeners to recover hydrocarbon oil and gas; soluble in both organic and aqueous fluids; high speed breakdown of viscoelastic sols |
| 03/27/2007 | US7196040 Microcapsule well treatment |
| 03/27/2007 | US7196039 Methods of reducing fluid loss in a wellbore servicing fluid |
| 03/27/2007 | US7195068 Degrading a filter cake using a composition of an acid-soluble portion and a polymeric portion; introducing a delayed-release acid component of orthoesters or poly(orthoesters), and a delayed-release oxidizer component into a well bore; useful in unconsolidated or poorly consolidated formations |
| 03/22/2007 | WO2007031736A1 Methods of formulating a cement composition |
| 03/22/2007 | WO2007031722A1 Polymer mixtures for crosslinked fluids |
| 03/22/2007 | WO2006120151A3 Method and composition for cleaning a well bore prior to cementing |
| 03/22/2007 | WO2006103253A3 Drilling fluid containing hydrophobin |
| 03/22/2007 | US20070066493 Orthoester-based surfactants and associated methods |
| 03/22/2007 | US20070066492 synthesized from a diketene acetal or multiketene acetal by addition of hydrophobic alcohol such as fatty alcohol, a fatty alcohol ethoxylate, an end-capped hydrophobic poly(alkylene oxide), poly(tetrahydrofuran), polybutadiene hydroxyl terminated; and a hydrophilc alochol e.g. endcapped polyoxyglycol |
| 03/22/2007 | US20070066491 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 03/22/2007 | US20070062699 for servicing well bores; slurrying |
| 03/21/2007 | EP1290310B1 Method for recovering hydrocarbon fluids from a subterranean reservoir |
| 03/21/2007 | CN1931956A Active alkali and its application in polynary chemical composite flooding |
| 03/21/2007 | CN1306145C Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins |
| 03/21/2007 | CN1305966C High efficiency anti-collapse asphalt powder for well drilling liquid |
| 03/21/2007 | CN1305965C Cation asphalt anti-collapse agent emulsion and its producing method and using method |
| 03/20/2007 | US7192908 Injecting blend of fluorboric acid and chelate compound; adjust permeability; dissolving clays |
| 03/20/2007 | US7192907 High performance water-based drilling mud and method of use |
| 03/15/2007 | WO2007030435A1 Deep water completions fracturing fluid compositions |
| 03/15/2007 | WO2007028952A1 Settable compositions comprising cement kiln dust and additive(s) and method of using them |
| 03/15/2007 | WO2007028951A1 Methods of using settable compositions comprising cement kiln dust |
| 03/15/2007 | WO2007028950A1 Foamed settable compositions comprising cement kiln dust, and methods of using them |
| 03/15/2007 | US20070060482 Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
| 03/15/2007 | US20070056735 Swelleable body arranged in the wellbore in a manner so as to seal space upon swelling; being in contact with formation water flowing into the wellbore, matrix material provided with a compound soluble in the formation water; matrix material sprevents or restricts migration |
| 03/15/2007 | US20070056731 Method for reducing density of a system fluid and for performing drilling operations using a reduced density system fluid comprising aerogel |
| 03/15/2007 | US20070056477 Low reactivity materials such as silica sand of given mesh size and amount; fractures occur in a non-linear fashion between the Interfacial Transition Zone (ITZ) of the particles, rather than in a straight line such as in conventional cements; compressive strength, flexural strength, and tensile strength |
| 03/15/2007 | CA2621781A1 Deep water completions fracturing fluid compositions |
| 03/14/2007 | EP1762297A2 Use of weakly anionic copolymers as dispersing agent of an aqueous suspension of mineral materials, aqueous suspensions obtained and uses thereof. |
| 03/14/2007 | CN1930266A Additive for viscoelastic fluid |
| 03/14/2007 | CN1930265A Improved drilling fluids |
| 03/14/2007 | CN1927993A High temperature stratum self-generating foam composition and application thereof in viscous oil exploitation |
| 03/14/2007 | CN1927992A Preparation method of resin fibre for oil field chemistry sand-proof |
| 03/14/2007 | CN1927991A Water plugging agent for water injection well preparing from discarded oil-containing sludge |
| 03/14/2007 | CN1304728C Method for the recovery of hydrocarbons from hydrates |
| 03/14/2007 | CN1304522C Fracturing working liquid for container rock containing travertine |
| 03/14/2007 | CN1304521C Elimination liquid of filter cake |
| 03/13/2007 | US7188673 Process for reducing the production of water in oil wells |
| 03/13/2007 | CA2505449C Flue gas injection for heavy oil recovery |
| 03/08/2007 | WO2007026144A1 Fluid-loss control pills comprising breakers that comprise orthoesters and/or poly(orthoesters) and methods of use |
| 03/08/2007 | WO2006131895B1 Fluid loss additive for enhanced fracture clean-up |
| 03/08/2007 | US20070054968 Environmentally friendly defoamer |
| 03/08/2007 | US20070054812 Method and thermodynamic inhibitors of gas hydrates in water-based fluids |
| 03/08/2007 | US20070054811 Crosslinkable polymer compositions comprising phenols and associated methods |
| 03/08/2007 | US20070051516 cementing wells using a mixture of calcium phosphate or aluminate, water and minerals selected from mica or vermiculite, and optionally wollastonite, basalt, carbon fibers or plastic fibers |
| 03/07/2007 | EP1664480B1 Dual function cement additive |
| 03/07/2007 | EP1590309A4 Extended particle size distribution ceramic fracturing proppant |
| 03/07/2007 | CN1923946A Solid antiscale, preparation method and mold thereof |