| 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) |
|---|
| 09/20/2000 | EP0738310B1 Plugging liquid for plugging a subterranean formation zone |
| 09/20/2000 | CN1267320A Fluid useful for oil mining comprising de-acetylated xanthane gum and at least one compound increasing medium ionic strength |
| 09/13/2000 | EP1034232A4 High temperature environmentally benign drilling fluid, and viscosifying additives for use therewith |
| 09/13/2000 | EP1034232A1 High temperature environmentally benign drilling fluid, and viscosifying additives for use therewith |
| 09/13/2000 | EP0811110B1 Oil well treatment |
| 09/12/2000 | US6117364 Comprising cinnamaldehyde and specified organosulfur compound(s); free of alkylphenol ethoxy compounds; does not have oil field aldehyde/polyacrylamide crosslinking incompatibility; for acid stimulation of wells |
| 09/12/2000 | US6117226 Stable suspension of hydrocolloids |
| 09/10/2000 | CA2300659A1 Drilling fluid |
| 09/10/2000 | CA2265197A1 Drilling mud oil |
| 09/08/2000 | WO2000052301A1 An efficient method for subsurface treatments, including squeeze treatments |
| 09/08/2000 | WO2000051922A1 Transport of solid particulates |
| 09/08/2000 | CA2382086A1 Transport of solid particulates |
| 09/07/2000 | DE19909231A1 Copolymere und ihre Verwendung als Bohrhilfsmittel Copolymers and their use as drilling aids |
| 09/06/2000 | EP1033471A1 Improved recovery and transportation of heavy crude oils |
| 09/06/2000 | EP1033378A1 Copolymers and their use as drilling additives |
| 09/06/2000 | CN1265446A Improved method for production and delivery of heavy crude |
| 09/06/2000 | CN1056210C Method for well cementation |
| 09/05/2000 | US6114410 Proppant containing bondable particles and removable particles |
| 09/05/2000 | US6113809 Use of a high purity imidazoline based amphoacetates as surface active agents |
| 09/05/2000 | US6112814 Method for cleaning wellbore surfaces using coiled tubing with a surfactant composition |
| 08/31/2000 | WO2000050357A1 Cementing compositions and application of such compositions to cementing oil wells or the like |
| 08/30/2000 | EP1031544A2 Well Cementing compositions |
| 08/30/2000 | EP0736131A4 A method for real time process control of well stimulation |
| 08/30/2000 | CN1265204A Memory controller for detecting failure of speculation of component being addressed |
| 08/29/2000 | US6110885 Alkyl polyglycoside, an ethoxylated alcohol, an acid and an alkyl alcohol; for removing deposits of heavy hydrocarbonaceous materials and finely divided inorganic particulate matter from wellbore and flowline surfaces |
| 08/29/2000 | US6110876 Non-polyampholite crosslinked polymers and gels based on a polymer which in uncrosslinked form is substantially soluble in ionic fluids and insoluble in water; polymers collapse (dehydrate) in response to environmental triggers |
| 08/29/2000 | US6110875 Degradation of xanthan-containing formation damage in a well bore with xanthanase enzyme complex produced by a specified culture of soil bacterium which is active at high temperatures and/or downhole conditions |
| 08/29/2000 | US6110874 Non-toxic, inexpensive synthetic drilling fluid |
| 08/29/2000 | US6110271 Methods for improved rheological control in cementitious systems |
| 08/29/2000 | US6109350 Method of reducing water produced with hydrocarbons from wells |
| 08/29/2000 | CA2105256C Tin/cerium lignosulfonate compounds |
| 08/24/2000 | WO2000049272A1 Fracturing process and composition |
| 08/23/2000 | EP1029908A2 Oil based synthetic hydrocarbon drilling fluid |
| 08/23/2000 | EP1029149A1 Viscoelastic surfactant fracturing fluids and a method for fracturing subterranean formations |
| 08/22/2000 | US6107531 Inhibiting the formation of clathrate hydrates in fluid involves treating the fluid with inhibitor comprising a substantially water soluble polymer; inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum |
| 08/22/2000 | US6107429 Addition copolymer comprising first and second diunsaturated monomer units |
| 08/22/2000 | US6107256 Method of and additive for controlling fluid loss from a drilling fluid |
| 08/22/2000 | US6107255 Additive such as an emulsifier, a viscosifier, a weighting agent, fluid loss control agent, and wetting agent and an inexpensive base fluid comprising a specified paraffinic mixture of iso-paraffins and n-paraffins at least 90 wt % |
| 08/22/2000 | US6106700 Method of treating crude oil with an amine oxide compound |
| 08/22/2000 | US6106603 Controlling particle sizes by milling |
| 08/22/2000 | US6105691 Modular drilling fluid system and method |
| 08/22/2000 | US6105674 Composition and method for recovering lost circulation and sealing earth boreholes and cavities |
| 08/22/2000 | US6105673 Patching of injection and production well annular casing leaks for restoring mechanical integrity |
| 08/22/2000 | CA2298898A1 Resilient well cement compositions and methods |
| 08/17/2000 | WO2000047692A1 Aphron-containing oil base fluids and method of drilling a well therewith |
| 08/17/2000 | WO2000047691A1 Aphron-containing aqueous well drilling and servicing fluids |
| 08/17/2000 | WO2000047690A1 Method of releasing stuck pipe or tools and spotting fluids therefor |
| 08/16/2000 | EP1028096A2 Cementing pipe strings in well bores |
| 08/16/2000 | EP1027528A1 Foaming composition |
| 08/16/2000 | EP1027396A1 Drilling and cementing through shallow waterflows |
| 08/16/2000 | EP0935700B1 Use of biodegradable alcoxylation products for cleaning boreholes, boring instruments or borings |
| 08/16/2000 | EP0807151B1 Polymeric earth support fluid compositions and method for their use |
| 08/16/2000 | CN1263581A Ether carboxylic acids as asphalt dispersants in crude oils |
| 08/16/2000 | CN1263481A Fluids containing viscoelastic surfactant and methods for using the same |
| 08/16/2000 | CN1263140A High-temp. high-pressure hypersalinity drilling fluid rheological property stabilizing agent |
| 08/15/2000 | US6103772 Foamed gel for permeability reduction or mobility control in a subterranean hydrocarbon-bearing formation |
| 08/15/2000 | US6103671 Glycol solution drilling system |
| 08/15/2000 | US6102986 Method of inhibiting gas hydrate formation |
| 08/15/2000 | US6102121 Contacting an additive including a dry mixture of water soluble carboxylate containing curable polymer, chromic complex curing agent, and reinforcing materials with water and injecting into opening to plug an opening in a well |
| 08/10/2000 | WO2000027944B1 Drilling fluid systems with improved fluid loss properties |
| 08/09/2000 | EP1025060A1 Hardener for hardening silicate solutions |
| 08/09/2000 | CA2298138A1 Methods and compositions for cementing pipe strings in well bores |
| 08/08/2000 | US6100223 Contacting an anhydrous mixture of a c1-5 acyclic carboxylic acid and an alk-1-ene (c3-c22) with an acid catalyst to produce secondary esters which are added to an invert drilling mud; durability; oligomerization inhibition |
| 08/08/2000 | US6100222 High density, viscosified, aqueous compositions having superior stability under stress conditions |
| 08/08/2000 | US6100221 For petroleum or a petroleum-derived liquid; a wax dispersant, e.g. nonionic surfactant, a polymer crystal modifier dispersed in water, and a solvent; stabilizers; low viscosity; pour points; antideposit agents; cold flow improvers |
| 08/08/2000 | US6098712 Method of plugging a well |
| 08/08/2000 | US6098711 Compositions and methods for sealing pipe in well bores |
| 08/02/2000 | EP1024154A2 Polymeric latexes with multivalent-ion stability, manufacture and use thereof |
| 08/02/2000 | EP1023382A1 Composite proppant, composite filtration media and methods for making and using same |
| 08/01/2000 | US6096690 Dispersion in base-oil paraffin/isopaaraffin solvent of weighting agents, emulsifiers, wetting agents, viscosifiers, fluid loss control agents, proppants, particules; nontoxic; biodegradable; pollution control; low-temperature performance |
| 07/27/2000 | WO2000043465A1 Water based deep water drilling fluid |
| 07/26/2000 | EP1022431A1 Method of degrading cellulose-containing fluids during completions, workover and fracturing operations of oil and gas wells |
| 07/26/2000 | CN1261335A Suspensions with high storage stability, comprising an aqueous silicate solution and a filler material |
| 07/25/2000 | US6093862 Process for slowing the growth and/or agglomeration and possibly retarding the formation of hydrates in a production effluent |
| 07/25/2000 | US6093684 Oil and gas well operation fluid used for the solvation of waxes and asphaltenes, and method of use thereof |
| 07/20/2000 | WO2000041981A1 Well cementing methods and compositions |
| 07/20/2000 | WO2000041480A2 Electrically conductive non-aqueous wellbore fluids |
| 07/20/2000 | CA2360375A1 Electrically conductive non-aqueous wellbore fluids |
| 07/19/2000 | EP1020507A2 Enhanced multicomponent mixtures for soil decomposition |
| 07/19/2000 | EP1019459A1 Oil based drilling fluids suitable for drilling in the presence of acidic gases |
| 07/18/2000 | US6090754 First surfactant of alkyl polyglycosides containing an odd number of carbon atoms, second surfactant consisting of a c12-c18 alkyl polyglycoside and third consisting of a linear alcohol ether of an ethylene oxide adduct; formulation |
| 07/18/2000 | US6089318 Method for control of fluid loss and gas migration in well cementing |
| 07/13/2000 | WO2000040667A1 Fluids and techniques for hydrocarbon well completion |
| 07/12/2000 | EP1017925A1 Method and compound for inhibiting the plugging of conduits by gas hydrates |
| 07/11/2000 | US6085842 Method of treating an underground formation |
| 07/11/2000 | US6085840 Method for control of liquid loss and gas migration in well cementing |
| 07/11/2000 | US6085839 Method of thermally insulating a wellbore |
| 07/11/2000 | CA2068234C Amine adducts as corrosion inhibitors |
| 07/05/2000 | EP1015732A1 Method of controlling asphaltene precipitation in a fluid |
| 07/05/2000 | EP1015663A1 Corrosion inhibition through the use of a quaternary pyridine salt-hydrocarbon combination |
| 07/05/2000 | CN1054178C Iron control in oil well fracturing fluids containing water |
| 07/04/2000 | US6082456 Using curable liquid containing prepolymer of unsaturated polyester or epoxy-vinyl ester and vinyl-containing monomer |
| 06/29/2000 | WO2000037777A1 Novel fluids and techniques for maximizing fracture fluid clean-up |
| 06/29/2000 | WO2000037775A1 Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins |
| 06/29/2000 | WO2000037387A1 Cementing compositions and application of such compositions for cementing oil wells or the like |
| 06/28/2000 | EP1013739A1 Drilling method using a reversible foaming composition |
| 06/27/2000 | US6080704 Glycols as gas hydrate inhibitors in drilling, drill-in, and completion fluids |
| 06/27/2000 | US6079492 Methods of rapidly consolidating particulate materials in wells |
| 06/22/2000 | WO2000036272A1 Foamed nitrogen in liquid co2 for fracturing |
| 06/22/2000 | WO2000036269A1 Methods and compositions for reducing the permeabilities of subterranean zones |