| 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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| 10/07/1987 | EP0239701A2 Method of removing scale from wet oxidation treatment apparatus |
| 10/07/1987 | EP0239568A1 Hydraulic fracturing process and compositions |
| 10/06/1987 | US4698380 Polymonoallylamine and a sulfonated polymer |
| 10/06/1987 | US4698168 Corrosion inhibitor for well acidizing treatments |
| 10/06/1987 | CA1227744A1 Steam drive oil recovery method utilizing a downhole steam generator and anti clay-swelling agent |
| 09/30/1987 | EP0239132A2 Delayed crosslinker composition containing organic titanium complexes |
| 09/30/1987 | EP0238675A1 Improved well cementing process |
| 09/30/1987 | EP0238485A1 Process for plugging a subterranean formation |
| 09/29/1987 | US4696752 System for acidizing oil and gas wells |
| 09/29/1987 | US4696699 Flexible grout composition and method |
| 09/29/1987 | US4696698 Flexible grout composition and method |
| 09/29/1987 | CA1227596A1 High temperature drilling fluids |
| 09/29/1987 | CA1227493A1 Process for the production of petroleum sulfonate |
| 09/23/1987 | CN87101793A Oil mining method by using delayed polymer gel |
| 09/22/1987 | US4695402 Organophilic clay gellants and process for preparation |
| 09/22/1987 | US4695389 Aqueous gelling and/or foaming agents for aqueous acids and methods of using the same |
| 09/22/1987 | US4694906 Method for emplacement of a gelatinous foam in gas flooding enhanced recovery |
| 09/22/1987 | US4694905 With phenolic andor furan resin |
| 09/22/1987 | US4694904 For recovering oil from a subterranean formation |
| 09/22/1987 | CA1227024A1 Fluid loss control agents for drilling fluids containing divalent cations |
| 09/16/1987 | EP0236598A1 Organic titanium compositions and their use as cross-linkers |
| 09/15/1987 | US4694046 Hydrophobically associating terpolymers of acrylamide, salts of acrylic acid and alkyl acrylamide |
| 09/15/1987 | US4693982 Purfication with hydrolytic enzyme |
| 09/15/1987 | US4693639 Copolymer of diallyldimethyl ammonium chloride and sulfur dioxide |
| 09/15/1987 | US4693321 Method using encapsulated flow improvers to reduce turbulence |
| 09/15/1987 | US4693312 Method of utilizing paraffin inhibitors |
| 09/15/1987 | US4693311 Steam foam process |
| 09/15/1987 | US4693310 Acrylamide polymer with redox crosslinking system, non-crosslinking salt of monovalent cation |
| 09/15/1987 | CA1226730A1 Drilling fluid additives |
| 09/11/1987 | WO1987003613A3 Water-in-oil emulsions |
| 09/09/1987 | EP0235276A1 A method of producing polymers and copolymers of amido-sulfonic acid containing monomers and salts thereof. |
| 09/09/1987 | CN87100189A Extracting method of special crude oil |
| 09/09/1987 | CN86108192A Water-in-oil-emulsion |
| 09/08/1987 | US4692254 Crosslinked gel, polysaccharide and zirconium compound |
| 09/08/1987 | US4692252 Method of removing scale from wet oxidation treatment apparatus |
| 09/08/1987 | US4691774 Magnetic particles, binder and liquid medium; cementious or non cementious |
| 09/08/1987 | CA1226583A1 Process for preventing the precipitation of elementary sulfur in riser pipes of probes for natural gas |
| 09/08/1987 | CA1226429A1 Non-retarding fluid loss additives for well cementing compositions |
| 09/02/1987 | EP0234910A2 Method of increasing hydrocarbon productions from subterranean formations |
| 09/02/1987 | EP0234057A1 Additives for combatting gelation in cement slurries for use in oilfield services, and corresponding methods of cementing |
| 09/01/1987 | US4690996 Containing a polysaccharide graft copolymer |
| 09/01/1987 | US4690219 Acidizing using n-vinyl lactum/unsaturated amide copolymers |
| 09/01/1987 | US4690217 Surfactants |
| 09/01/1987 | CA1226122A1 Thermally stable mobility control reagents for harsh environment reservoirs |
| 08/26/1987 | EP0233660A2 Delayed crosslinker composition |
| 08/26/1987 | EP0233533A2 Mobility control reagents with superior thermal stability |
| 08/25/1987 | US4689177 Use of tridithiocarbamic acid compositions as demulsifiers |
| 08/25/1987 | US4689161 Tendrils of carbon fibers and iron partially bonded to it |
| 08/25/1987 | US4688639 Polymer gelation process for oil recovery applications |
| 08/25/1987 | CA1225824A1 Method for liquifying chloride-based heavy brine well completion fluids |
| 08/19/1987 | EP0232965A1 Preparation of vicinal diol containing monomers and polymers, and subterranean use thereof |
| 08/18/1987 | US4687828 Thickeners, enhanced oil recovery |
| 08/18/1987 | US4687790 Mine stopping caulk |
| 08/18/1987 | US4687586 Hydrolyzed polyacrylamide |
| 08/18/1987 | US4687516 Liquid fluid loss control additive for oil field cements |
| 08/18/1987 | US4687059 Enhanced hydrocarbon recovery process utilizing thermoelastic fracturing |
| 08/18/1987 | US4687058 Solvent enhanced fracture-assisted steamflood process |
| 08/18/1987 | CA1225520A1 Biopolymer composition having enhanced filterability |
| 08/12/1987 | CN86108199A Improvement of spreading coefficient of oil-bearing stratum by a polymer gel |
| 08/11/1987 | US4686053 Microemulsions |
| 08/11/1987 | US4686052 Stabilized fracture fluid and crosslinker therefor |
| 08/11/1987 | US4686051 Method of increasing the rate of hydration of activated hydroxyethyl cellulose compositions |
| 08/11/1987 | US4685836 Method of consolidating a geological formation by thermal polymerization |
| 08/11/1987 | CA1225493A1 Stable suspensions of hydrosoluble polymers, and their preparation |
| 08/05/1987 | EP0230725A1 Gelling aqueous silicate compositions |
| 08/04/1987 | US4684507 Process of corrosion inhibition using compounds containing sulfur and amino groups |
| 08/04/1987 | US4683954 Composition and method of stimulating subterranean formations |
| 08/04/1987 | US4683953 Water in oil emulsion containing expandable hydrophilic clay |
| 08/04/1987 | US4683952 Fluid loss control in oil field cements |
| 08/04/1987 | US4683951 Chemical flooding and controlled pressure pulse fracturing process for enhanced hydrocarbon recovery from subterranean formations |
| 08/04/1987 | US4683949 Conformance improvement in a subterranean hydrocarbon-bearing formation using a polymer gel |
| 08/04/1987 | CA1225184A1 Viscosifiers for aqueous fluids based on polymer complexes |
| 08/04/1987 | CA1224916A1 Non-retarding fluid loss additives for well cementing compositions |
| 08/04/1987 | CA1224915A1 .alpha. OLEFIN SULFONATE SURFACTANT ADDITIVES FOR GAS FOAM DRIVES AND A PROCESS OF STIMULATING HYDROCARBON RECOVERY FROM A SUBTERRANEAN FORMATION |
| 08/04/1987 | CA1224914A1 Sulfonate dimer surfactant additives for gas foam drives and a process of stimulating hydrocarbon recovery from a subterranean formation |
| 07/29/1987 | EP0230399A2 Improvements in or relating to organic compounds |
| 07/29/1987 | EP0230065A1 Additive for controlling fluid loss from well cement slurries, and corresponding cementing method |
| 07/29/1987 | EP0229912A2 Oil based drilling fluids and additives therefor |
| 07/28/1987 | US4683286 Hydrolyzed |
| 07/28/1987 | US4683074 Stability and compatibility of glycosides in acid systems |
| 07/28/1987 | US4683068 Fracturing of subterranean formations |
| 07/28/1987 | US4682654 Hydrolases, oil recovery, solid phase |
| 07/28/1987 | US4682653 Steam recovery processes employing stable forms of alkylaromatic sulfonates |
| 07/21/1987 | US4681912 Process for manufacturing inverse microlatices of watersoluble copolymers, the resultant inverse microlatices and their use for improving the production of hydrocarbons |
| 07/21/1987 | US4681690 Stabilized fracturing fluid and method of stabilizing fracturing fluid |
| 07/21/1987 | US4681634 Hydraulic cement with setting-retarder adjuvant |
| 07/21/1987 | US4681165 Well cementing |
| 07/21/1987 | US4681164 Removing residues |
| 07/21/1987 | CA1224331A1 Process for utilizing a silicate/silica cement in oil field applications |
| 07/15/1987 | EP0228798A1 Acrylamide/alkylacrylamide acrylate terpolymer and process for its preparation |
| 07/14/1987 | US4680230 Hydraulic fracturing |
| 07/14/1987 | US4680128 Anionic copolymers for improved control of drilling fluid rheology |
| 07/14/1987 | US4679631 Composition and method of stimulating subterranean formations |
| 07/14/1987 | US4679629 Method for modifying injectivity profile with ball sealers and chemical blocking agents |
| 07/14/1987 | US4679625 Oil recovery process using a viscosity adjusted gelation system |
| 07/14/1987 | CA1224024A1 Diverting agents for steamfloods |
| 07/08/1987 | EP0228196A2 Composition and method for temporarily reducing the permeability of subterranean formations |
| 07/07/1987 | US4678591 Terpolymer composition for aqueous drilling fluids |
| 07/07/1987 | US4678036 Miscible oil recovery process |
| 07/07/1987 | US4678033 Introducing microbes into a subterranean formation |