| 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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| 02/01/2006 | CN1729347A Self-diverting pre-flush acid for sandstone |
| 02/01/2006 | CN1729346A 水力压裂方法 Hydraulic fracturing method |
| 02/01/2006 | CN1729345A Methods for controlling the rheological properties of viscoelastic surfactants based fluids |
| 02/01/2006 | CN1239670C Method for fracturing rock-layer underground |
| 01/31/2006 | US6992048 Methods of generating gas in well treating fluids |
| 01/31/2006 | US6991031 In situ thermal processing of a coal formation to convert a selected total organic carbon content into hydrocarbon products |
| 01/26/2006 | WO2006009455A1 Granules of powdery mineral and method for production of granules |
| 01/26/2006 | WO2006008506A1 Scale inhibition method |
| 01/26/2006 | WO2006008439A1 Water flooding method |
| 01/26/2006 | WO2006007977A1 Use of lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings |
| 01/26/2006 | WO2005068777A3 Methods of using sealants in multilateral junctions |
| 01/26/2006 | US20060019836 Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid |
| 01/26/2006 | US20060019835 a chromium acetate crosslinkable copolymer containing 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, N-vinylpyrrolidone, vinylphosphonic acid, N-vinyl-N-methylacetamide monomers; thermally stable; used to reduce or to completely stop water inflows from underground formations |
| 01/26/2006 | US20060019834 Including a rheology modifier and/or fluid loss control agent that is carboxymethylated raw cotton linters or salts; also includes polymeric additive, inorganic salts, dispersants, shale stabilizers or inhibitors, weighting agents, and/or finely divided clay particles |
| 01/26/2006 | US20060016598 Lightweight proppant and method of making same |
| 01/26/2006 | CA2573680A1 Water flooding method |
| 01/26/2006 | CA2573383A1 Use of lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings |
| 01/25/2006 | EP1618168A2 Drilling fluids with improved shale inhibition and methods of use in subterranean formations |
| 01/25/2006 | CN1238464C Adjusting section agent with increasing injunction action of near well |
| 01/25/2006 | CN1238463C Fluid and techniques for hydrocarbon well completion |
| 01/24/2006 | US6989354 invertible well bore servicing fluid containing an amine emulsifier that allows the fluid to be reversibly converted from a water-in-oil emulsion to an oil-in-water emulsion upon contact with an acid |
| 01/24/2006 | US6989353 Adding low molecular weight polyalkyl methacrylate for reducing sag in an oil or invert emulsion based drilling fluid |
| 01/24/2006 | US6989352 Silicic acid mud lubricants |
| 01/24/2006 | US6989057 Preparing a cement comprising zeolite, cementitious material, and water;placing the cement into the subterranean zone;allowing the cement to set therein |
| 01/24/2006 | US6988552 Removing any scale or deposits in gas wells, by injecting a liquid carbon dioxide at a pressure below the formation fracturing pressure, depressurization to vaporize carbon dioxide, and blow out any dissolved scale materials |
| 01/24/2006 | US6988550 Subterranean formation; low viscosity |
| 01/24/2006 | CA2313835C Cementing casing strings in deep water offshore wells |
| 01/24/2006 | CA2148117C A biodegradable wellbore fluid comprising n-alkanes |
| 01/24/2006 | CA2136775C Process for recovering and moving highly viscous petroleum products |
| 01/19/2006 | WO2006007347A2 Variable density drilling mud |
| 01/19/2006 | WO2006006955A2 Flow inhibitors and process for inhibiting the movement of free flowing particles |
| 01/19/2006 | WO2006005904A1 Compositions comprising set retarder compositions and associated methods |
| 01/19/2006 | US20060014650 Alkylxylene sulfonates for enhanced oil recovery processes |
| 01/19/2006 | US20060014649 Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes |
| 01/19/2006 | US20060014648 Brine-based viscosified treatment fluids and associated methods |
| 01/19/2006 | US20060014647 Synthetic base fluid for enhancing the results of crude oil characterization analyses |
| 01/19/2006 | US20060011343 Well kill additive, well kill treatment fluid made therefrom, and method of killing a well |
| 01/19/2006 | CA2570263A1 Variable density drilling mud |
| 01/18/2006 | EP1617039A1 Brine based viscosified treatment fluids and associated methods |
| 01/18/2006 | EP1616074A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations |
| 01/18/2006 | EP1616073A1 Biodegradable cement retarder compositions and methods of cementing in a subterranean formation |
| 01/18/2006 | EP1615763A2 Particulate material containing thermoplastic elastomer and methods for making and using same |
| 01/18/2006 | EP1339946B1 Well treatment process |
| 01/18/2006 | CN1721497A Acidizing fluid for oil well |
| 01/18/2006 | CN1721496A Oil well acidizing fluid containing organic phosphinic acid |
| 01/18/2006 | CN1721495A Oil well acidizing fluid containing organic phosphono and sulfonic acid |
| 01/18/2006 | CN1237257C Well treatment fluid composition and hydraulic fracturing method |
| 01/18/2006 | CN1237256C Method for increasing petroleum recovery ratio using three-component composite displacement emulsification |
| 01/18/2006 | CN1237145C Cement fly ash profile control agent for plugging of oil and water well |
| 01/18/2006 | CN1237144C Fluid loss additive of drilling fluid in use for oil field and preparation method |
| 01/17/2006 | US6987083 Xanthan gels in brines and methods of using such xanthan gels in subterranean formations |
| 01/17/2006 | US6986852 Conditioning agents based on polysuccinimide (PSI) or its partial hydrolysates in combination with fatty acids or their derivatives for preventing deposits which form in standing or flowing water system due to hardness forming ions |
| 01/17/2006 | US6986392 Recyclable foamed fracturing fluids and methods of using the same |
| 01/17/2006 | US6986391 Methods of fracturing subterranean zones penetrated by well bores and fracturing fluids therefor |
| 01/17/2006 | US6986358 Contacting the surface with tris(hydroxymethyl)phosphine or tetrakis(hydroxymethyl)phosphonium salt and an amine, ammonium derivative, or ammonia in the presence of an aqueous solvent |
| 01/12/2006 | WO2006003637A1 Degradable additive for viscoelastic surfactant based fluid system |
| 01/12/2006 | US20060009364 Base liquid; a silica viscosifier, a biopolymer thermal stabilizer of xanthan gum, and a polar additive of diethylene glycol |
| 01/12/2006 | US20060009363 Deep water completions fracturing fluid compositions |
| 01/11/2006 | EP1614669A1 Reactive sealing compostions for hydrocarbon containing subterranean formations |
| 01/11/2006 | EP1276959B1 Method and system for treating a hydrocarbon containing formation |
| 01/11/2006 | CN1236009C Compound acidifying liquid containing nitric acid and boratofluroic acid and its use method |
| 01/11/2006 | CN1236008C Well drilling liquid of potassium sulfate |
| 01/11/2006 | CN1236007C Weight additive in use for drilling fluid providing protection effect for oil layer |
| 01/10/2006 | US6984705 Adjust permeability; using crosslinked polymer |
| 01/10/2006 | US6984611 Water-in-oil emulsion of isobutyl oleate as its external phase and glycerin as the internal phase for freeing differential stuck pipe in a subterranean well drilling operation |
| 01/10/2006 | US6984610 Acid based micro-emulsions of surfactants and solvents |
| 01/10/2006 | US6983801 Well treatment fluid compositions and methods for their use |
| 01/10/2006 | US6983800 Methods, cement compositions and oil suspensions of powder |
| 01/10/2006 | US6983799 Method of using a swelling agent to prevent a cement slurry from being lost to a subterranean formation |
| 01/10/2006 | US6983797 Lightweight high strength particles and methods of their use in wells |
| 01/05/2006 | WO2005068582A3 Settable fluids and methods for use in subterranean formations |
| 01/05/2006 | US20060003899 Drilling fluid and methods of use thereof |
| 01/05/2006 | US20060002879 Applying a water-soluble interjacent complex of a water-soluble polymer and (b) one or more water-soluble monomers that have been polymerized in the presence of the polymer; the complex forms a solution in water that is free of insoluble polymer particles and grafting; cosmetics |
| 01/04/2006 | EP1534921B1 Gas hydrate inhibitors |
| 01/04/2006 | CN1717419A Soluble, associative carboxymethylcellulose, method of making, and uses thereof |
| 01/04/2006 | CN1715334A High efficiency anti-collapse asphalt powder for well drilling liquid |
| 01/04/2006 | CN1715333A Cation asphalt anti-collapse agent emulsion and its producing method and using method |
| 01/04/2006 | CN1714921A Emulsifier/demulsifier system |
| 01/03/2006 | US6982000 Cement compositions including silane treated amorphous silica |
| 01/03/2006 | US6981549 Hydraulic fracturing method |
| 01/03/2006 | CA2217755C Precipitation polymerization process for producing an oil adsorbent polymer capable of entrapping solid particles and liquids and the product thereof |
| 01/03/2006 | CA2119316C Control of particulate flowback in subterranean wells |
| 01/02/2006 | CA2510951A1 Reactive sealing compositions for sealing hydrocarbon containing subterranean formations and methods |
| 12/29/2005 | WO2005124100A1 Well treatment |
| 12/29/2005 | WO2005124099A1 Well treatment |
| 12/29/2005 | WO2005124097A1 Well treatment |
| 12/29/2005 | WO2005123871A2 Formation consolidation process |
| 12/29/2005 | WO2005123870A1 Compositions and methods for water control and strengthening unconsolidated formations |
| 12/29/2005 | WO2005026493A3 Phospholipid lubricating agents in aqueous based drilling fluids |
| 12/29/2005 | US20050288190 Methods and compositions for reducing subterranean formation permeabilities |
| 12/29/2005 | US20050284667 Compositions and methods for water control and strengthening unconsolidated formations |
| 12/29/2005 | US20050284666 Geosynthetic composite for borehole strengthening |
| 12/29/2005 | US20050284641 Controlled variable density fluid for wellbore operations |
| 12/29/2005 | US20050284637 Methods of treating subterranean formations using low-molecular-weight fluids |
| 12/29/2005 | US20050284634 Foamed and non-foamed cement compositions including silane treated amorphous silica and methods |
| 12/29/2005 | US20050284632 Methods useful for controlling fluid loss during sand control operations |
| 12/29/2005 | US20050284631 Lightweight composite particulates and methods of using such particulates in subterranean applications |
| 12/29/2005 | US20050284630 Lightweight high strength particles and methods of their use in wells |
| 12/28/2005 | EP1608842A1 Reverse circulation cementing system and method |
| 12/28/2005 | EP1608841A1 Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |