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)
12/2002
12/12/2002US20020188040 Water-soluble polymer complexes
12/12/2002US20020185278 Methods of fracturing subterranean formations
12/12/2002CA2449083A1 Thermal extenders for well fluid applications
12/11/2002CN1095810C Cementitious composition and method for use in substerranean wells
12/11/2002CA2390052A1 Subterranean formations treating fluid concentrates, treating fluids and methods
12/10/2002US6492305 Method of controlling loss of a subterranean treatment fluid
12/10/2002US6491099 Fracturing a subterranean formation, by pumping viscous fluid of aqueous base fluid with a surfactant comprising an alkyl sarcosinate for fracturing a hydrocarbon-bearing formation.
12/10/2002CA2115745C Ester-free ethers
12/10/2002CA2071218C Method for reducing water inflow in oil or gas wells using improved gel compositions
12/05/2002WO2002097236A1 Process for reducing the production of water in oil wells
12/05/2002WO2002097235A1 Process for reducing the production of water in oil wells
12/05/2002US20020182700 Fracture of subterranean formation which surrounds a well bore; provie fracturing fluid, inject into well bore, release pressure from fracturing fluid
12/04/2002EP1261678A2 Conductive medium for openhole logging and logging while drilling
12/04/2002EP1261563A1 Multifunctional additive to cement slurries
12/03/2002US6489272 Lubricant, solvent and emulsifier composition and method of manufacture
12/03/2002US6489270 Weighting agent, polysaccharide and polyether
12/03/2002US6488764 Cement composition with polymeric latexes prepared in the presence of amps seed
12/03/2002US6488763 Admixing calcium aluminate, fly ash, sodium polyphosphate and sufficient water to form a pumpable slurry, pumping the slurry into the subterranean wells containing carbon dioxide, allowing the slurry to set into hard impervious mass therein
12/03/2002US6488091 Concentrates are basically comprised of water and a substantially fully hydrated depolymerized polymer. the treating fluids which are formed by adding water to the treating fluid concentrates are basically comprised of water,
12/03/2002US6488089 Methods of plugging wells
11/2002
11/28/2002WO2002095187A2 Methods of well treatment
11/28/2002WO2002094003A1 Biodegradable mulching-mat for preventing weeds and method for manufacturing the mat
11/27/2002EP1260491A1 Permeable cements
11/27/2002EP1165936A4 Novel fluids and techniques for maximizing fracture fluid clean-up
11/26/2002US6485233 Foaming composition
11/26/2002US6484821 Shale hydration inhibition agent and method of use
11/21/2002WO2002092964A1 Method for treating a subterranean formation
11/21/2002WO2002092963A1 A gas lift method with surfactant injection
11/21/2002WO2002092720A1 Composition for oil and gas drilling fluids containing organic compounds
11/21/2002WO2002064699A3 Oleaginous drilling fluid, method of use and bio-remediation of the same to produce a useful soil amendments
11/21/2002WO2002064697A3 Drillings fluids containing an alkali metal formate
11/21/2002WO2002026654A3 A cementing composition including a dispersant agent for cementing operation in oil wells
11/21/2002WO2002024771A3 Subterranean wellbore and formation sealing compositions
11/21/2002US20020173430 Environmentally acceptable well cement fluid loss control additives, compositions and methods
11/21/2002US20020170715 Method for treating a subterranean formation
11/21/2002US20020170708 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
11/20/2002EP1257729A2 Foaming agents for use in coal seam reservoirs
11/20/2002EP1257727A1 Method of treating reservoir zone of hydrocarbon producing well to inhibit water production problems
11/20/2002EP1257726A1 Synthetic crosslinked copolymer solutions and direct injection to subterranean oil and gas formations
11/20/2002EP1257610A2 Shale hydration inhibition agent and method of use
11/20/2002EP1129047B1 Cementing compositions and the use of such compositions for cementing oil wells or the like
11/20/2002EP1017925B1 Method and compound for inhibiting the plugging of conduits by gas hydrates
11/20/2002CN1094507C Biodegradable synthetic ester base stock formed from branched OXO acids
11/19/2002US6482866 Viscoelastic surfactant fluids and related methods of use
11/19/2002US6482776 Ampholyte polymer composition and method of use
11/19/2002CA2076641C Stabilized suspension and its use for the recovery of hydrocarbons
11/14/2002US20020169085 Well completion; comprises crosslinked polymer, proppant, and gravel; for fracturing subterranean formations
11/14/2002US20020169084 Comprises mixing contaminated drilling fluids in high shear mixer, adding solidification agent which expands when hydrated and electrolytically attracts contaminates to surface, adding cellulosic additive, forming powder, and dispersing into sea
11/14/2002US20020169083 For decontamination of synthetic/water/oil-based drilling muds/fluids; biodegradation; eliminates need for rig to land disposal
11/14/2002US20020169082 Electrolytically attracting contaminates to surface of solidification agent when hydrated, increasing biodegradation
11/14/2002US20020169081 Electrolytically attracting contaminates to the surface of the solidification agent when hydrated, increasing biodegradation
11/14/2002US20020169080 Electrolytically attracting organic contaminates to the surface of the solidification agent when hydrated, increasing biodegradation
11/13/2002EP0956379B1 Use of 1-amidoalkylimidazoles for inhibiting corrosion
11/12/2002US6478869 Flow properties of dry cementitious materials
11/12/2002US6478868 Early-enhanced strength cement compositions and methods
11/07/2002WO2002088520A1 Treatment fluids and methods for consolidating substrates without simultaneous substantial loss of permeability
11/07/2002WO2002088273A1 Thickener for excavating slurry, excavating slurry using the thickener, and cast-inplace underground pile work method and underground continuous wall work method using the excavating slurry
11/07/2002WO2002064706A3 Use of cardanol aldehyde resins as asphalt dispersants in crude oil
11/07/2002US20020165101 Containing group 3, group 8 compounds; fracturing
11/07/2002US20020162487 Storable composition and slurries and use of same for cementing oil and gas wells
11/07/2002US20020162486 Environmentally acceptable well cement fluid loss control additives, compositions and methods
11/07/2002CA2445993A1 Treatment fluids and methods for consolidating substrates without simultaneous substantial loss of permeability
11/06/2002EP1254942A2 Drilling fluid containing caesium compounds
11/06/2002EP1042425B1 A method for controlling the rheology of an aqueous fluid and gelling agent therefor
11/06/2002EP0912634B1 Additivation of essentially amorphous cellulose nanofibrils with carboxyl cellulose with a high degree of substitution
11/06/2002CN1378563A Aqueous gelled composition comprising a block copolymer including at least water soluble block and hydrophobic block
11/06/2002CN1093881C Process for preparation of immunogens or diagnostic reagents, and method for obtaining immunogens or diagnostic reagents
11/06/2002CN1093851C High stability and low metals esters based on 3,3,5-trimethyl-1-hexanol
11/05/2002US6476169 Methods of reducing subterranean formation water permeability
11/05/2002US6475959 Method for the rheology control of fluid phases
11/05/2002US6474413 Process for the reduction of the relative permeability to water in oil-bearing formations
10/2002
10/31/2002WO2002038517A3 Water-selective cementing composition
10/31/2002US20020161087 Hydraulic fracturing fluid comprising a block copolymer containing at least one water-soluble block and one hydrophobic block
10/31/2002US20020160921 Additive for breaking a gel of a hydrocarbon liquid and a ferric iron salt of a phosphonic acid ester, comprising a water soluble reducing agent for the ferric salt
10/31/2002US20020160920 Aqueous base fluid, hydratable polymer, transition metal crosslinker, and delayed release chelating agent that competes with the polymer for the transition metal crosslinker, reducing viscosity of the fluid
10/31/2002US20020160919 Water-based drilling fluids using latex additives
10/31/2002US20020157575 Introducing a cement slurry of a hydraulic cement base and a natural mineral fiber into wellbore; allowing the slurry to cure within the wellbore to form a hardened cement
10/31/2002US20020157305 Method of improving the flow properties of a crude oil or natural gas liquid
10/30/2002EP1252263A1 Inhibition of asphaltene deposition in crude oil production systems
10/30/2002EP1251953A1 Rheology modified compositions and modification agents
10/30/2002CN1093589C Foam composite oil drive method
10/30/2002CA2384217A1 Ester/monoester copolymer compositions and methods of preparing and using same
10/29/2002CA2054781C Method and device for strenghtening a formation drilled through by a deviated well
10/24/2002WO2002084075A1 Well service fluid and method of making and using the same
10/24/2002WO2002084072A1 Additives for inhibiting the formation of gas hydrates
10/24/2002WO2002084070A1 Methods of treating subterranean zones penetrated by well bores
10/24/2002WO2002083813A1 Compositions for treating subterranean zones penetrated by well bores
10/24/2002WO2002083743A1 Water-soluble polymer complexes
10/24/2002WO2002083073A2 Cosmetic compositions containing water-soluble polymer complexes
10/24/2002US20020155956 Aqueous drilling fluid and shale inhibitor
10/24/2002CA2443977A1 Well service fluid and method of making and using the same
10/23/2002EP0975708A4 Methods and materials for degrading xanthan
10/22/2002US6468945 Surrounding oil and gas wells comprises water, an anionic surfactant, and a cationic surfactant;
10/19/2002CA2344507A1 Well treatment fluids and methods for the use thereof
10/17/2002WO2002081590A1 Borehole fluid
10/17/2002US20020150499 Comprising scale inhibitor and alkyl primary amine; less likely to invade fatty tissues of marine life
10/17/2002US20020148609 Spotting fluid for differential sticking
10/15/2002US6465587 Containing allyloxy linkage and its functional derivatives for use in oil field applications as fluid additives for drilling and cementing processes.
10/15/2002US6465397 Synthetic crosslinked copolymer solutions and direct injection to subterranean oil and gas formations
10/15/2002US6464009 Oil well completion and oil recovery operations