| 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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| 03/30/1995 | CA2131335A1 Method of improving the contaminant resistance of a smectite clay by rewetting and impregnating the clay with a water-soluble polymer, and redrying the polymer-impregnated clay |
| 03/29/1995 | EP0645181A2 Method of improving the contaminant resistance of a smectite clay |
| 03/28/1995 | US5401860 Copolymerization of polyethercyclicpolyols with epoxy resins |
| 03/28/1995 | US5401786 Additive composition for oil well cementing formulations |
| 03/28/1995 | US5401719 Mixture of graphite, silicate mineral and polysiloxane, nonpolluting, hydrocarbon-free |
| 03/28/1995 | US5401718 Tin/cerium compounds for lignosulfonate processing |
| 03/28/1995 | US5401425 Recovering enhanced oil recovery surfactants by temperature cycling |
| 03/28/1995 | CA2022592C Method of treating subterranean formations |
| 03/28/1995 | CA1334946C Microbial control of hydrogen sulfide production by sulfate reducing bacteria |
| 03/22/1995 | EP0644315A1 Effective hydrocarbon blend for removing asphaltenes |
| 03/22/1995 | EP0644257A2 Process for preparing amino acid particles |
| 03/22/1995 | CA2132112A1 Acid catalyzed process for preparing amino acid polymers |
| 03/22/1995 | CA2132041A1 Process for removing and preventing near-wellbore damage due to asphaltene precipitation |
| 03/21/1995 | US5399548 Tannin, lignite, lignin |
| 03/21/1995 | US5399270 Inhibition of scale formation from oil well brines utilizing a slow release composition |
| 03/21/1995 | US5399269 Gelation of water soluble polymers |
| 03/21/1995 | US5398759 Acids, phosphonates, phosphinates |
| 03/21/1995 | US5398758 Utilizing drilling fluid in well cementing operations |
| 03/21/1995 | US5398756 In-situ remediation of contaminated soils |
| 03/21/1995 | CA1334814C Novolac coated ceramic particulate |
| 03/16/1995 | WO1994026886A3 Process for the preparation of immunogens or diagnostic reagents, and immunogens or diagnostic reagents thereby obtainable |
| 03/16/1995 | DE4330689A1 Polymer flooding process for the recovery of oil from underground reservoirs |
| 03/16/1995 | DE4330688A1 Polymer flooding process for the recovery of oil from underground reservoirs |
| 03/15/1995 | EP0643197A2 Encapsulated breakers and method for use in treating subterranean formations |
| 03/15/1995 | EP0643196A2 Consolidatable particulate material and well treatment method |
| 03/15/1995 | EP0643081A1 Polymers of vinylsulfonic acid |
| 03/15/1995 | EP0642561A1 Functional fluid. |
| 03/15/1995 | EP0235276B1 A method of producing polymers and copolymers of amido-sulfonic acid containing monomers and salts thereof |
| 03/14/1995 | US5396958 Well treating composition and method of use |
| 03/09/1995 | WO1995006695A1 Wellbore fluid |
| 03/09/1995 | WO1995006694A1 Wellbore fluid |
| 03/07/1995 | CA1334692C Continuously forming and transporting consolidatable resin coated particulate materials in aqueous gels |
| 03/07/1995 | CA1334623C Grouting composition |
| 03/02/1995 | WO1995006074A1 Water-soluble copolymerizates containing carboxyl groups, methods of producing said copolymerizates, and use thereof as scale inhibitors |
| 02/28/1995 | US5393810 Method and composition for breaking crosslinked gels |
| 02/28/1995 | US5393464 Water soluble N-ethoxy-2-substituted imidazoline derivatives |
| 02/28/1995 | US5393439 Periodate fracturing fluid viscosity breakers |
| 02/28/1995 | US5392859 Acid stimulation process for production from subterranean formations |
| 02/28/1995 | US5392855 Method to prepare polymer solutions for down-hole applications |
| 02/22/1995 | EP0639241A1 Encapsulated breaker chemical |
| 02/22/1995 | EP0639240A1 Microencapsulated oil field chemicals and process for their use. |
| 02/22/1995 | CN1099015A Check well cover made of glass fibre magnesia chloride cement |
| 02/21/1995 | US5391764 Polyaspartic acid manufacture |
| 02/21/1995 | US5391636 Film-forming maleic anhydride-styrene copolymer which has been modified by polyamines and which may also have some of the copolymer replaced by rosins and/or fatty acids |
| 02/21/1995 | US5391359 Water dispersible thickeners comprising hydrophilic polymers coated with particulate fatty acids or the salts thereof |
| 02/21/1995 | US5390741 Remedial treatment methods for coal bed methane wells |
| 02/21/1995 | CA1334502C Method of forming stable dispersions of particulate matter |
| 02/16/1995 | WO1995004788A1 Invert emulsion drilling mud |
| 02/16/1995 | WO1995004771A1 Reaction products from olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifying agents for crude oil emulsions |
| 02/16/1995 | WO1995004592A1 Concentrated aqueous compositions of alkylpolyglycosides, and applications thereof |
| 02/15/1995 | EP0638663A2 Intensified corrosion inhibitor and method of use |
| 02/15/1995 | EP0638592A2 Method of preparing water-in-oil polymer microemulsions and use of the polymers |
| 02/15/1995 | EP0638049A1 Installation for preventing deposits in a structure's drainage system |
| 02/14/1995 | US5389706 Cementing well with aqueous pumpable slurry of Portland cement particles and ethoxylated alkali metal salt of alkyl polyether sulfonate dispersant/stabilizer which sets into hard impermeable mass |
| 02/14/1995 | US5389146 A pumpable, reswellable seals for bore hole comprising of sodium bentonite, meerschaum and ammonium sulfate; nontoxic, polymer-free, environmental safe |
| 02/14/1995 | US5388650 Non-cryogenic production of nitrogen for on-site injection in downhole drilling |
| 02/14/1995 | US5388646 Method for rejuvenation of injection wells |
| 02/14/1995 | US5388644 Flooding in oil-bearing formation through an injection well a miscible fooding solvent from liquid natural gas and liquid carbon dioxide containing amide; enhanced oil recovery |
| 02/08/1995 | EP0532570B1 Free-flowing drill hole treatment agents based on carbonic acid diesters |
| 02/07/1995 | US5387675 Modified hydrophobic cationic thickening compositions |
| 02/07/1995 | US5387658 Crosslinked castor oil derivatives |
| 02/07/1995 | US5386874 Perphosphate viscosity breakers in well fracture fluids |
| 02/07/1995 | CA2058812C Transporting mobility control agents to high permeability zones |
| 02/07/1995 | CA2005946C Composition and method for sweetening hydrocarbon |
| 02/02/1995 | WO1995003140A1 Method for removing alkaline earth scale from the interior surface of production tubing |
| 02/01/1995 | EP0636591A1 Cementitious composition for the cementation of oil wells |
| 02/01/1995 | EP0636202A1 Use of pressurized medium in drilling. |
| 02/01/1995 | EP0431085B1 Method of decontaminating earth |
| 01/31/1995 | US5385429 Synthetic cover for waste |
| 01/31/1995 | US5385206 Amphoteric foaming agent, anionic surfactant, collapsing foam on acidification |
| 01/31/1995 | CA2083054C Foam for improving sweep efficiency in subterranean oil-bearing formations |
| 01/26/1995 | WO1995002745A1 Control of scale deposition in geothermal operations |
| 01/24/1995 | US5384334 Alkoxylated alkyl glucoside ether quaternaries useful in personal care |
| 01/24/1995 | US5383521 Fly ash cementing compositions and methods |
| 01/21/1995 | CA2127743A1 Method and composition for enhancing hydrocarbon production from wells |
| 01/18/1995 | EP0634468A1 Drilling fluid additive and method for inhibiting hydration |
| 01/18/1995 | EP0541605B1 USE OF SURFACE-ACTIVE $g(a)-SULFO FATTY-ACID DI-SALTS IN WATER-BASED AND OIL-BASED BORE-FLUSHING AGENTS AND OTHER BOREHOLE-TREATMENT FLUIDS |
| 01/18/1995 | EP0506934B1 Use of gel-based compositions in reducing water inrush in oil or gas-producing wells |
| 01/18/1995 | EP0445185B1 Self-emulsifying ester compounds |
| 01/17/1995 | US5382728 Effective hydrocarbon blend for removing asphaltenes |
| 01/17/1995 | US5382371 Polymers useful in the recovery and processing of natural resources |
| 01/17/1995 | US5382290 Conversion of oil-base mud to oil mud-cement |
| 01/17/1995 | US5381864 Well treating methods using particulate blends |
| 01/12/1995 | WO1995001315A1 Graft polymers of keto-aldehyde condensation or co-condensation products |
| 01/11/1995 | EP0633390A1 Set retarding cement additive |
| 01/11/1995 | EP0633389A1 Particulate cement compositions |
| 01/10/1995 | US5380706 Quaternary ammonium stabilizers |
| 01/10/1995 | US5380705 Drilling mud comprising tetrapolymer consisting of n-vinyl-2-pyrrolidone, acrylamidopropanesulfonicacid, acrylamide, and acrylic acid |
| 01/10/1995 | US5380469 Polyglycerol ester and fatty acid |
| 01/10/1995 | US5379843 Side-tracking cement plug |
| 01/10/1995 | US5379841 Injection of copolymer based on vinyl acetamide and acrylamidoalkylenesulfonate |
| 01/10/1995 | US5379840 High temperature well cementing with low grade blast furnace slag |
| 01/05/1995 | WO1995000742A1 Method for delaying gelation of a gelable polymer composition injected into a subterranean formation |
| 01/05/1995 | WO1995000479A1 Polyaspartic acid manufacture |
| 01/05/1995 | WO1995000475A1 Surfactant, process for its production and use |
| 01/04/1995 | EP0632186A1 Set retarded cement compositions |
| 01/04/1995 | EP0632057A1 Anionic sulfonated thickening compositions |
| 01/04/1995 | EP0631605A1 Iterated foam process and composition for well treatment |
| 01/04/1995 | EP0542808B1 Use of surface-active ester sulphonate salts in water-based and oil-based bore-flushing agents and other oil-well drilling fluids |
| 01/03/1995 | US5378756 Nonionic emulsifiers and acetylenic ether compounds for automobile fluids, lacquers, paints and colors |