| 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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| 08/23/1977 | US4043921 Secondary oil recovery |
| 08/23/1977 | US4043396 Alkoxylated asphalt as sacrificial agents in oil recovery processes |
| 08/16/1977 | US4042529 Composition and method for enhancing dispersibility of water soluble polymers |
| 08/16/1977 | US4042032 Methods of consolidating incompetent subterranean formations using aqueous treating solutions |
| 08/16/1977 | US4042031 Plugging subterranean earth formations with aqueous epoxy emulsions containing fine solid particles |
| 08/16/1977 | US4042030 Oil recovery by viscous waterflooding |
| 08/09/1977 | US4040967 Method of fracturing subterranean formations penetrated by a well |
| 08/09/1977 | US4040854 Methods of using cementing compositions having improved flow properties, containing phosphonobutane tricarboxylic acid |
| 08/09/1977 | US4040484 Gel formation by polymer crosslinking |
| 08/09/1977 | US4040258 Method of consolidating particles |
| 08/02/1977 | US4039717 Method for reducing the adherence of crude oil to sucker rods |
| 08/02/1977 | US4039459 Wells, imino-dimethylene phosphonic acid, dicarboxylic acid or ester |
| 08/02/1977 | US4039029 Retreatment of wells to reduce water production |
| 08/02/1977 | US4039028 Mobility control of aqueous fluids in porous media |
| 07/26/1977 | US4038206 Hydroxyalkyl locust bean/xanthomonas hydrophilic colloid blends |
| 07/26/1977 | US4038093 Film of crosslinked hydroxyalkyl cellulose |
| 07/26/1977 | US4037659 Micellar flooding process for recovering oil from petroleum reservoirs |
| 07/26/1977 | US4037656 Caustic waterflooding |
| 07/19/1977 | US4036764 Method of foam drilling using a sulfoacetate foaming agent |
| 07/19/1977 | US4036660 Methods of using cementing compositions having improved flow properties, containing sulfonated copolymers of styrene-maleic anhydride |
| 07/19/1977 | US4036659 Cement composition |
| 07/19/1977 | US4036301 Process and composition for cementing casing in a well |
| 07/19/1977 | US4036300 Aminopolycarboxylic acids and salts as chelating agents |
| 07/12/1977 | US4034811 Furfuryl alcohol, acid catalyst |
| 07/12/1977 | US4034809 Acrylamide-acrylic acid copolymer, subterranean formations |
| 07/05/1977 | US4033893 Clays, lignite |
| 07/05/1977 | US4033415 Crosslinked aqueous gel |
| 07/05/1977 | US4033410 Monoethanolamine process for sulfur removal from circulating oil used in sour gas wells |
| 06/28/1977 | US4032460 Inhibition of scale deposition in high temperature wells |
| 06/28/1977 | US4031959 Method of maintaining the permeability of hydrocarbon reservoir rock |
| 06/28/1977 | US4031958 Plugging of water-producing zones in a subterranean formation |
| 06/28/1977 | US4031957 Method and apparatus for testing and treating well formations |
| 06/21/1977 | US4031306 Polygalactomannan allyl ether compositions |
| 06/21/1977 | US4031014 Method of reducing friction loss |
| 06/21/1977 | US4030548 Economically dissolving barium sulfate scale with a chelating agent |
| 06/14/1977 | US4029149 Propping subterranean formation fractures |
| 06/14/1977 | US4029148 Well fracturing method |
| 06/07/1977 | US4028257 Composition and method for reducing the surface tension of aqueous fluids |
| 06/07/1977 | US4028125 Portland cement, gypsum, alkali metal nitrate, and alkaline hexametaphosphate, polycarboxylic acid or salt thereof as retarder |
| 06/07/1977 | US4027731 Methods of and apparatus for hydrocarbon recovery |
| 05/31/1977 | US4026946 Corrosion inhibitors |
| 05/31/1977 | US4026361 Treating wells with a temporarily thickening cellulose ether solution |
| 05/24/1977 | US4025443 Viscosifying additive of hydroxyalkyl guar gum and magnesia or magnesium hydroxide |
| 05/24/1977 | US4024918 Method of cementing a well |
| 05/24/1977 | US4024917 Calcium and magnesium hydroxide plugging process |
| 05/17/1977 | USRE29219 Surfactant oil recovery process |
| 05/17/1977 | US4024040 Polymerization of unsaturated monomers with radiation in the presence of salts |
| 05/10/1977 | US4022699 Soluble oil composition |
| 05/03/1977 | US4021356 Alkoxylated asphalts as co-surfactants in surfactant oil recovery processes usable in formations containing water having high concentrations of polyvalent ions such as calcium and magnesium |
| 05/03/1977 | US4021355 Polysaccharide crosslinked with sodium or potassium permanganate |
| 04/19/1977 | US4018689 With perfluorinated surfactants |
| 04/19/1977 | US4018286 Controlled well plugging with dilute polymer solutions |
| 04/19/1977 | US4018285 Method for controlling fines migrations |
| 04/19/1977 | US4018281 Oil recovery by waterflooding with improved mobility control |
| 04/19/1977 | US4018278 Surfactant oil recovery process usable in high temperature formations |
| 04/12/1977 | US4017405 For petroleum oil recovery, surfactants |
| 04/12/1977 | US4016932 Surfactant oil recovery method for use in high temperature formations containing water having high salinity and hardness |
| 04/12/1977 | US4016931 Method of forming a consolidated gravel pack |
| 04/05/1977 | US4016086 Polyacrylamide polymers derived from acrylonitrile without intermediate isolation |
| 04/05/1977 | US4015995 Catalyst comprising acid-releasing compound and a base |
| 04/05/1977 | US4015991 2-acrylamido-2-methylpropane sulfonic acid derivative copolymers and their use |
| 03/29/1977 | US4014527 Chemical blending system |
| 03/29/1977 | US4014394 Restoring lost circulation |
| 03/22/1977 | US4013569 Aqueous anionic surfactant systems containing aromatic ether polysulfonates |
| 03/22/1977 | US4013568 Composition and method for drilling formations containing geothermal fluid |
| 03/22/1977 | US4013125 Flooding with micellar dispersions containing petroleum sulfonates obtained by sulfonating whole or topped crude oil |
| 03/15/1977 | US4012329 Water-in-oil microemulsion drilling fluids |
| 03/15/1977 | US4012328 Acid soluble packer and workover fluid |
| 03/15/1977 | US4012327 Fracturing fluids thickened with aminomethylated polyacrylamide |
| 03/15/1977 | US4011909 Method of using cementing composition having improved flow properties |
| 03/15/1977 | US4011908 Pretreatment with aqueous alkaline alkali metal silicate solution |
| 03/08/1977 | US4010802 Well stimulation |
| 03/01/1977 | US4009755 Selectively controlling the flow of fluids through subterranean formations |
| 02/22/1977 | US4008775 Method of using a porous Fe3 O4 drilling mud additive |
| 02/22/1977 | US4008769 Petroleum oil acids, oil, surfactants |
| 02/22/1977 | US4008768 Oil recovery by waterflooding employing multicomponent surfactant systems |
| 02/22/1977 | US4008767 Oil recovery by low tension waterflooding |
| 02/22/1977 | US4008766 Oil recovery by waterflooding employing a biopolymer-surfactant system |
| 02/22/1977 | US4008764 Carrier gas vaporized solvent oil recovery method |
| 02/15/1977 | US4008165 Surfactant oil recovery process usable in high temperature formations having high concentrations of polyvalent ions |
| 02/15/1977 | US4008096 Oil in water emulsion, subterranean |
| 02/15/1977 | US4007792 H2o, chloroform, buffers, thixotropic |
| 02/15/1977 | US4007791 Method for recovery of crude oil from oil wells |
| 02/15/1977 | US4007789 Acidizing wells |
| 02/15/1977 | US4007785 Heated multiple solvent method for recovering viscous petroleum |
| 02/08/1977 | US4007128 Gelled hydrocarbon |
| 02/08/1977 | US4006779 Lignosulfonates as sacrificial agents in oil recovery processes |
| 02/01/1977 | US4005753 Method of treating a subterranean formation with a polymeric diverting agent |
| 02/01/1977 | US4005749 Oil recovery by surfactant waterflooding |
| 01/25/1977 | US4005020 Oxyalkylated amines-fatty alcohols-alkylphenols, cellosolve; for petroleum systems |
| 01/25/1977 | US4004639 Selectively plugging the more permeable strata of a subterranean formation |
| 01/25/1977 | US4004638 Sulfonate |
| 01/25/1977 | US4004637 Oil recovery by improved surfactant flooding |
| 01/25/1977 | US4004636 Combined multiple solvent and thermal heavy oil recovery |
| 01/18/1977 | US4003838 Water loss reduction agents |
| 01/18/1977 | US4003432 Method of recovery of bitumen from tar sand formations |
| 01/11/1977 | US4002204 Timing the deposition of an asphalt plugging material from an asphalt-cationic emulsion |
| 01/04/1977 | US4000781 Tertiery amines |
| 12/28/1976 | US4000076 Adding soluble phosphates to the mud |
| 12/21/1976 | US3998833 Diels-alder adducts of dihydro-nitrogen heterocyclic phosphoramidates |