| 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) |
|---|
| 04/20/1976 | US3951824 Dry drilling fluid composition |
| 04/20/1976 | US3951823 Foam well cleanout using oligomeric sulfonates |
| 04/20/1976 | US3951210 Sand control method employing asphaltenes |
| 04/13/1976 | US3949811 Method for reducing the permeability of subterranean formations to brines |
| 04/06/1976 | US3948783 Process for the secondary and tertiary recovery of petroleum |
| 04/06/1976 | US3948782 Drilling with low viscosity fluids |
| 04/06/1976 | US3948672 Diesel oil, salt water, xanthan gum |
| 04/06/1976 | US3948325 Fracturing of subsurface formations with Bingham plastic fluids |
| 04/06/1976 | US3948324 Well treating |
| 03/30/1976 | US3947392 Foundry sand compositions containing graft copolymers of biochemically-synthesized heteropolysaccharides |
| 03/30/1976 | US3946814 Method for oil recovery |
| 03/30/1976 | US3946813 Method for stimulating well production |
| 03/30/1976 | US3946812 Use of materials as waterflood additives |
| 03/30/1976 | US3946811 Polyalkene oxide preslug for protecting displacement fluids from polyvalent ions |
| 03/23/1976 | US3945929 Process for the secondary or tertiary recovery of petroleum |
| 03/23/1976 | US3945439 Method for oil recovery |
| 03/23/1976 | US3945438 Sulfonated ethoxy compound |
| 03/23/1976 | US3945437 Process for displacing oil using aqueous anionic surfactant systems containing aromatic ether polysulfonates |
| 03/16/1976 | US3943996 Low fluid loss cementing compositions |
| 03/16/1976 | US3943954 Pipeline transportation of viscous hydrocarbons |
| 03/09/1976 | US3943160 Heat-stable calcium-compatible waterflood surfactant |
| 03/09/1976 | US3943084 Method for delaying the setting of and acid-settable liquid in a terrestrial zone |
| 03/09/1976 | US3943083 Well cementing composition containing polymaleic anhydride and having improved flow properties |
| 03/09/1976 | US3943060 Dimethylaminomethyl acrylamide polymer |
| 03/09/1976 | US3943059 Process of displacing oil in subterranean reservoir employing aqueous surfactant systems |
| 03/02/1976 | US3941192 Method for recovering high asphaltene content petroleum using surfactants |
| 03/02/1976 | US3941191 Method of consolidating unconsolidated or insufficiently consolidated formations |
| 02/24/1976 | US3939912 Method for reducing the production of water from oil wells |
| 02/24/1976 | US3939911 Surfactant oil recovery process usable in high temperature formations containing water having high concentrations of polyvalent ions |
| 02/17/1976 | US3938594 Chromic ion gelled polyacrylamide in subterranean formations |
| 02/17/1976 | US3938593 Process for treatment of wells with acid halides |
| 02/17/1976 | US3938591 Intermediate fluid systems for long distance oil displacement |
| 02/17/1976 | US3938590 Method for recovering viscous asphaltic or bituminous petroleum |
| 02/10/1976 | US3937633 Acrylamide-sodium acrylate copolymer |
| 02/10/1976 | US3937283 Formation fracturing with stable foam |
| 02/10/1976 | US3937282 Method for cementing wells in low temperature formations |
| 02/03/1976 | US3936408 Well cementing composition having improved flow properties containing a polyamido-sulfonic additive |
| 01/27/1976 | US3934651 Method of acidizing subterranean formations |
| 01/20/1976 | US3933204 Plugging subterranean regions with acrylic-epoxy resin-forming emulsions |
| 01/20/1976 | US3933201 Method using overbased branched-chain alkylaromatic sulfonates as waterflood additives |
| 01/13/1976 | US3932488 Alkaline catalyst; polyphenolic extract |
| 01/13/1976 | US3932296 Corrosion inhibitor |
| 01/06/1976 | US3931096 Low fluid loss cementing compositions |
| 01/06/1976 | US3931089 Acid compositions comprised of polymeric 2-acrylamido-2-methylpropanesulfonic acid as thickener |
| 01/06/1976 | US3930539 Method of obtaining increased production in wells |