C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations

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)
11/2004
11/24/2004	EP1478606A1 Cement compositions for high temperature applications
11/23/2004	US6822061 For use as fluid loss control
11/23/2004	US6822039 Invertible emulsions stabitised by amphiphilic polymers and application to bore fluids
11/23/2004	US6821931 Controlling filter cakes; friction resistance
11/23/2004	US6820694 Method for preparing improved high temperature fracturing fluids
11/23/2004	US6820692 Bentonite nodules
11/23/2004	US6820688 Heat exchanging after pyrolyzation to support synthesis gas generation
11/23/2004	CA2237561C Metal corrosion inhibitor for use in aqueous acid solutions
11/21/2004	CA2467791A1 Oilfield treatment fluid stabilizer
11/18/2004	WO2004099557A2 Methods and compositions for compensating for cement hydration volume reduction
11/18/2004	WO2004099337A1 Intermediates useful in the manufacture of well treatment fluids and methods of preparing same
11/18/2004	WO2004069398A3 Stabilized colloidal and colloidal-like systems
11/18/2004	US20040229758 Water block removal wih surfactant based hydrocarbonaceous liquid system
11/18/2004	US20040229757 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
11/18/2004	US20040229755 Synthetic filtration control polymers for wellbore fluids
11/18/2004	US20040226746 Method and system for minimizing circulating fluid return losses during drilling of a well bore
11/18/2004	US20040226718 Method and device to reduce asphaltene and paraffin accumulations in wells
11/18/2004	US20040226716 Methods and compositions for placing particulate materials in subterranean zones
11/18/2004	US20040226484 Methods and cement compositions for cementing in subterranean zones
11/18/2004	US20040226483 Hydraulic cement, water to form slurry, dispersing agent comprising a tetrapolymer formed of methacrylic acid, methacrylate, methallylsulfonic acid and ethoxylated acrylic acid; for cementing subterranean zones penetrated by wellbores
11/18/2004	CA2524480A1 Methods and compositions for compensating for cement hydration volume reduction
11/17/2004	EP1147288B1 Methods and compositions for reducing the permeabilities of subterranean zones
11/17/2004	EP1102826B1 Wellbore fluid
11/16/2004	US6818599 Method for in situ forming of unstable oil in water emulsion, especially as well servicing fluid
11/16/2004	US6818598 For sealing a lost circulation zone in a wellbore
11/16/2004	US6818597 Water-soluble polymer, polyalkylene glycol, suspension stabilizer comprising hydrogenated castor oil or wax; for thickening, suspending or stabilizing aqueous systems
11/16/2004	US6818596 Humic acid as hydration buffer to keep powder or pellets dry and flowable
11/16/2004	US6818595 Drilling fluids containing an alkali metal formate
11/16/2004	US6818594 Reactivating a deactivated, encapsulated enzyme
11/16/2004	US6817414 Acid coated sand for gravel pack and filter cake clean-up
11/11/2004	WO2004097157A2 Method for treating bottomhole zone
11/11/2004	WO2004096942A1 Amidoamine salt-based viscosifying agents and method of use
11/11/2004	WO2004096940A1 Water block removal with surfactant based hydrocarbonaceous liquid system
11/11/2004	WO2004080909A3 Method for increasing the waterproofing of mineral binders, compounds produced with said method and the use thereof
11/11/2004	WO2003083173A3 Corrosion inhibitor
11/11/2004	US20040224855 Method for preparing a chlorine dioxide block-removing agent in oil wells
11/11/2004	US20040224854 for improving oil recovery from a reservoir by reducing viscosity; comprising: a fatty acid alkyl ester; at least one of a surfactant and a colloid; and an acid
11/11/2004	US20040224852 Drilling fluids comprising sized graphite particles
11/11/2004	US20040224155 coating polymeric beads with aqueous solutions of alumoxanea, drying, heating to convert to amorphous alumina or aluminate coatings, dissolving in solvents to removing the polymer and firing to form hollow microstructure particles used as proppants or porous membranes; filters
11/11/2004	US20040222128 Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002)
11/11/2004	US20040221992 portion of proppant particles in a fracturing fluid are coated with a resin or tackifying agent; and consolidating in fractures into high strength permeable masses
11/11/2004	US20040221990 Methods and compositions for compensating for cement hydration volume reduction
11/11/2004	US20040221989 Aqueous viscoelastic fluid
11/11/2004	DE10307727B3 Verwendung von Verbindungen als Korrosions- und Gashydratinhibitoren mit verbesserter Wasserlöslichkeit und erhöhter biologischer Abbaubarkeit und diese Verbindungen Use of compounds as corrosion and gas hydrate inhibitors with improved water solubility and increased biodegradability and these compounds
11/09/2004	US6815399 Emulsion comprising oil, emulsifier, cement, water, polysaccharide, and divalent metal compound crosslinker
11/09/2004	US6814798 Storable water-microsphere suspensions for use in well cements and methods
11/09/2004	US6814145 Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone
11/06/2004	CA2466139A1 Downhole tool and method for fracturing a subterranean well formation
11/04/2004	WO2004094778A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
11/04/2004	WO2004094777A1 Biodegradable cement retarder compositions and methods of cementing in a subterranean formation
11/04/2004	WO2004094761A2 Method for selectively positioning proppants in high contrast permeability formations to enhance hydrocarbon recovery
11/04/2004	WO2004094556A1 Methods, aqueous well treating fluids and friction reducers therefor
11/04/2004	WO2004094337A2 Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation
11/04/2004	WO2004094304A2 Additives for preparing rheology-modified aqueous fluids
11/04/2004	WO2004076811A3 Drilling fluid component
11/04/2004	US20040220058 Compositions and methods of stabilizing subterranean formations containing reactive shales
11/04/2004	US20040216882 Remediation Treatment of Sustained Casing Pressures (SCP) In Wells with Top Down Surface Injection of Fluids and Additives
11/04/2004	US20040216876 Acid-coated sand for gravel pack and filter cake clean-up
11/04/2004	CA2523088A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
11/04/2004	CA2522500A1 Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation
11/03/2004	EP1473285A1 Dispersant and fluid loss control additive for well cement
11/03/2004	EP1472324A1 High performance water based drilling mud and method of use
11/03/2004	EP1109875B1 Bromate/bromine filtercake removal fluid
11/03/2004	CN1543494A Method to remove iron sulfide deposits from pipe lines
11/02/2004	US6811603 Methods, well cement compositions and lightweight additives therefor
11/02/2004	US6810959 Modified polysaccharides that have hydrophilic (e.g., cationic, anionic, nonionic or amphoteric) groups, such as polymeric quaternary ammonium salt of hydroxyethyl cellulose reacted with a trimethyl ammonium substituted epoxide
11/02/2004	CA2275487C Method for drying out rock containing immobile formation water within the encroachment area of natural gas deposits and gas reservoirs
10/2004
10/28/2004	WO2004092301A2 Drilling fluids comprising sized graphite particles
10/28/2004	WO2004092254A2 Particulate material containing thermoplastic elastomer and methods for making and using same
10/28/2004	WO2004063521A3 Annular fluids and methods of emplacing the same
10/28/2004	US20040214728 Mixture with gelling agent comprising a polyvalent metal salt of an organophosphonic acid ester or a polyvalent metal salt of an organophosphinic acid; sand control treatments like fracturing and gravel packing
10/28/2004	US20040214726 Glycol; filtration, heating; well completion
10/28/2004	US20040214725 Viscoelastic surfactants for use in aqueous systems to generate thickened fluids; hydraulic fracturing in oil fields; gravel packing, drilling, well completion; rheology control
10/28/2004	US20040214724 Compositions and methods for reducing the viscosity of a fluid
10/28/2004	US20040213905 Treatment fluids and methods for consolidating substrates without simultaneous substantial loss of permeability
10/28/2004	US20040211568 Methods of fracturing subterranean zones penetrated by well bores and fracturing fluids therefor
10/28/2004	US20040211566 Methods of fracturing subterranean zones, fracturing fluids and breaker activators therefor
10/28/2004	US20040211564 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
10/28/2004	US20040211563 Mixture of hollow particles in fluid; well completion
10/28/2004	US20040211562 mixtures of alumina, silica and soluble inorganic phosphates and setting retarders comprising water soluble carboxylic acids, having compressive strength, for use in well completion
10/28/2004	US20040211558 Hydraulic fracturing method
10/28/2004	US20040211341 Cementing composition and application of such compositions for cementing oil wells or the like
10/28/2004	US20040211339 Biodegradable cement retarder compositions and methods of cementing in a subterranean formation
10/28/2004	US20040211316 Method for inhibiting hydrate formation
10/28/2004	CA2426607A1 Well stimulation fluid and well stimulation fluid recycling process
10/27/2004	EP1390604B1 Method for treating a subterranean formation
10/27/2004	EP1189981B1 Use of an inhibitor compound in an organosilicon composition
10/27/2004	EP1161510B1 Aphron-containing aqueous well drilling and servicing fluids
10/26/2004	US6809067 Composition for oil and gas drilling fluids with solidification agent, cell transport agent and cellulosic additive
10/26/2004	US6808680 Method of preventing or stopping sulfuric corrosion of metals
10/21/2004	WO2004090282A1 Xanthan gels in brines and methods of using such xanthan gels in subterranean formations
10/21/2004	WO2004090067A2 Drilling fluids with improved shale inhibition and methods of use in subterranean formations
10/21/2004	US20040206937 Corrosion inhibitor-drag reducer compounds
10/21/2004	US20040206506 Method for enhancing well productivity
10/21/2004	US20040206501 Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation
10/21/2004	US20040206499 Methods of reducing or preventing particulate flow-back in wells
10/21/2004	US20040206498 high viscosity fluids for gravel packing; heating brine, adding xanthan polymer, acidification, gelation
10/21/2004	US20040206497 Method for selectively positioning proppants in high contrast permeability formations to enhance hydrocarbon recovery
10/20/2004	EP1105441B1 Shale-stabilizing additives
10/20/2004	EP0960259B1 Aphron-containing well drilling and servicing fluids

1 ... 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 ... 318