| 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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| 11/20/1979 | US4174753 Well stimulation by two-phase flow |
| 11/20/1979 | CA1066612A1 Salinity tolerant surfactant oil recovery process |
| 11/14/1979 | EP0005216A1 Acidic gelled composition, process for producing such a composition and process for acidizing a porous subterranean formation |
| 11/13/1979 | US4174309 Polyisocyanate cross-linked alkylene oxide-linear non-ionic polysaccharide reaction product |
| 11/13/1979 | US4174283 Phosphoric ester, aluminum activator, thickening |
| 11/13/1979 | US4173999 Technique for controlling lost circulation employing improved soft plug |
| 11/13/1979 | CA1066041A1 Flooding with micellar systems to solubilize equal volumes of hydrocarbon and water |
| 10/31/1979 | EP0005030A2 Low calcium xanthan gums |
| 10/30/1979 | US4172801 Clay-free wellbore fluid |
| 10/30/1979 | US4172800 Drilling fluids containing an admixture of polyethoxylated, sulfurized fatty acids and polyalkylene glycols |
| 10/30/1979 | US4172498 Sulfomethylated lignosulfonates as additives in oil recovery processes involving chemical recovery agents |
| 10/30/1979 | US4172497 Lignosulfonates carboxylated with chloroacetic acid as additives in oil recovery processes involving chemical recovery agents |
| 10/23/1979 | US4172055 Mixture of hydroxypropylcellulose and poly(maleic anhydride/alkene-1) as a hydrocolloid gelling agent |
| 10/23/1979 | US4172041 Composition for acidizing subterranean formations |
| 10/23/1979 | CA1064818A1 Miscible drive in heterogeneous reservoirs |
| 10/23/1979 | CA1064817A1 Surfactant waterflooding with hydrocarbon slug preceding surfactant slug |
| 10/23/1979 | CA1064690A1 Selective plugging of areas close to oil or gas wells to reduce inflow of water |
| 10/17/1979 | EP0004692A2 Method for forming channels of high fluid conductivity in formation parts around a borehole |
| 10/16/1979 | US4171323 Surface-active agent |
| 10/16/1979 | CA1064247A1 Consolidating particles with aqueous emulsions of epoxy resin components |
| 10/16/1979 | CA1064246A1 Process for the production of fluids from subterranean formations using aqueous gels |
| 10/09/1979 | CA1063931A1 Micellar flooding process for recovering oil from petroleum reservoirs |
| 10/09/1979 | CA1063928A1 Process for plugging permeable earth formations with wax |
| 10/09/1979 | CA1063790A1 Water base drilling mud composition comprising zinc sulfate and an alkaline earth metal oxide or hydroxide |
| 10/09/1979 | CA1063789A1 Drilling fluid and method |
| 10/02/1979 | US4169818 Mixture of hydroxypropylcellulose and poly(maleic anhydride/alkyl vinyl ether) as a hydrocolloid gelling agent |
| 10/02/1979 | US4169798 Polygalactomannans, flow control agents |
| 10/02/1979 | US4169797 Cellulose ether, compound of a polyvalent metal capable of reduction causing gelation |
| 10/02/1979 | CA1063337A1 Oil recovery by waterflooding employing hydrophilic carbon oxide for mobility control |
| 10/02/1979 | CA1063336A1 Drilling of subterranean formations with drilling fluids containing radiation induced fluid loss agents |
| 09/25/1979 | US4168746 Single well surfactant test to evaluate surfactant floods using multi tracer method |
| 09/25/1979 | CA1063013A1 Micellar flooding process |
| 09/20/1979 | WO1979000701A1 Improved petroleum sulfonates |
| 09/18/1979 | US4168257 Process for treating wells with viscous epoxy-resin-forming solutions |
| 09/18/1979 | CA1062449A1 Buffer regulated mud acid for treating underground formations |
| 09/18/1979 | CA1062448A1 Spacer fluid for spacing drilling muds and cement and methods of their use |
| 09/11/1979 | US4167502 Carboxylic polymeric thickeners |
| 09/11/1979 | US4167214 Adding 5-sulfosalicylic acid and citric acid |
| 09/11/1979 | CA1061996A1 Method for removing elemental sulfur in sour gas wells |
| 09/04/1979 | US4166504 High vertical conformance steam drive oil recovery method |
| 09/04/1979 | CA1061532A1 Method for recovering high asphaltene content petroleum using surfactants |
| 09/04/1979 | CA1061531A1 Water base drilling mud composition |
| 08/28/1979 | US4166038 Surfactant waterflooding employing amphoteric sulfonium sulfonates |
| 08/28/1979 | US4165785 Injection of two separate polyalkoxyalkylene sulfonates |
| 08/28/1979 | CA1061247A1 Treating subterranean formations with resin coated particles |
| 08/28/1979 | CA1061098A1 Plugging subterranean regions with acrylic-epoxy resin-forming emulsions |
| 08/21/1979 | US4165257 Biopolymer filterability improvement by caustic-enzyme treatment |
| 08/21/1979 | US4164979 Reservoir stabilization by treating water sensitive clays |
| 08/07/1979 | US4163727 Secondary oil recovery using nonionic surfactant, acid and water |
| 08/07/1979 | US4163476 Secondary recovery process utilizing an acrylamido alkanesulfonic acid polymer |
| 08/07/1979 | CA1059746A2 Water loss reduction agents |
| 08/07/1979 | CA1059745A1 Water loss reduction agents |
| 08/07/1979 | CA1059744A1 Paraffin removal |
| 07/31/1979 | US4162707 With a halogenated restoration fluid |
| 07/26/1979 | WO1979000467A1 Process for producing gene products of plasmid dna |
| 07/25/1979 | EP0003183A1 Propoxylated ethoxylated surfactants and method of recovering oil therewith |
| 07/25/1979 | EP0003062A2 Plasmids, bacteria and gene products of plasmid DNA, processes for preparing them |
| 07/24/1979 | US4161983 High conformance oil recovery process |
| 07/24/1979 | US4161982 High conformance enhanced oil recovery process |
| 07/24/1979 | US4161981 Method for recovering hydrocarbons |
| 07/24/1979 | CA1058854A1 Composition and method of removing scale from oil wells |
| 07/17/1979 | US4161218 High conformance enhanced oil recovery process |
| 07/17/1979 | US4161217 Hot water foam oil production process |
| 07/17/1979 | CA1058515A1 Method of treating parts of an underground formation |
| 07/17/1979 | CA1058382A1 Process of producing iron oxide weighting materials for drilling fluids |
| 07/10/1979 | US4160483 Method of treating a well using fluoboric acid to clean a propped fracture |
| 07/10/1979 | US4160480 High conformance oil recovery process |
| 07/10/1979 | CA1057942A1 Iron carbonate acid soluble weighting agent for well drilling, workover and completion fluids |
| 07/03/1979 | US4160063 Method for preventing the adherence of oil to surfaces |
| 07/03/1979 | CA1057649A1 Formation fracturing with foam having greater proppant concentration |
| 06/26/1979 | US4159209 Metal complexes |
| 06/26/1979 | US4159037 High conformance oil recovery process |
| 06/26/1979 | CA1057041A1 Stabilization of polymer solutions |
| 06/26/1979 | CA1057040A1 Stabilization of polymer solutions |
| 06/26/1979 | CA1057039A1 Viscosity-stabilized aqueous solutions |
| 06/19/1979 | US4158521 Method of stabilizing clay formations |
| 06/19/1979 | CA1056717A1 Selectively controlling the flow of fluids through subterranean formations |
| 06/19/1979 | CA1056590A1 Formation fracturing with stable foam |
| 06/19/1979 | CA1056589A1 Sulfonation parameters useful in designing micellar dispersions useful in oil recovery processes |
| 06/12/1979 | CA1056301A1 Producing heavy oil from tar sands |
| 06/12/1979 | CA1056299A1 Selectively plugging the more permeable strata of a subterranean formation |
| 06/12/1979 | CA1056147A1 Method of consolidating subterranean formations using diluted resins |
| 06/05/1979 | US4157322 Water diverting gel compositions |
| 06/05/1979 | US4157306 Tertiary oil recovery process utilizing a preflush |
| 06/05/1979 | US4157264 Acrylic acid polymer set-inhibitor |
| 06/05/1979 | US4157115 Lignosulfonates as additives in recovery processes involving chemical recovery processes |
| 06/05/1979 | CA1055841A1 Alkoxylated asphalts as sacrificial agents in oil recovery processes |
| 06/05/1979 | CA1055685A1 Method of well drilling and composition therefor |
| 05/29/1979 | US4156464 Enhanced oil recovery by foaming |
| 05/29/1979 | US4156463 Injecting steam and acyclic amine to separate from mineral surfaces |
| 05/29/1979 | US4156462 Injecting steam, then carbon monoxide and hydrogen to displace; drive fluid containing sulfated, alkoxylated nitrophenol to reduce surface tension |
| 05/29/1979 | CA1055392A Method for tertiary extraction of petroleum by flooding with hot water or with alkaline, water-soluble substances, in deposits |
| 05/29/1979 | CA1055242A1 Fracturing subterranean formation |
| 05/22/1979 | US4155857 Aqueous solution of a gluconate, hydroxide, and carbonate to remove calcium sulfate from well bores |
| 05/22/1979 | US4155410 In drilling oil or gas wells |
| 05/22/1979 | US4155405 Polyacrylamide gel crosslinked with a dialdehyde |
| 05/22/1979 | CA1054926A1 Oil recovery by surfactant waterflooding |
| 05/22/1979 | CA1054783A1 Secondary recovery methods |
| 05/15/1979 | US4154301 Surfactant oil recovery process usable in a formation having high salinity connate water |
| 05/15/1979 | US4154300 Method of locating extrema in multicomponent three phase systems |