| 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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| 06/03/1986 | US4592850 Injection water viscosifier for enhanced oil recovery |
| 06/03/1986 | US4592425 Process to remove settled solids from completion brines |
| 06/03/1986 | US4592424 Return flow of injection fluid back into well |
| 06/03/1986 | CA1205283A1 Drilling fluids based on a mixture of a sulfonated thermoplastic polymer and an amine-treated clay |
| 06/03/1986 | CA1205282A1 Process for eliminating clays from rocks and sedimentary environments |
| 05/28/1986 | EP0182600A2 Use of water soluble polymers in aqueous drilling or packer fluids and as detergent builders |
| 05/27/1986 | US4591447 Alkali metal acetate, acetic acid, water and an n,n bis/2-hydroxyethyl/fatty amine acetic acid salt |
| 05/27/1986 | US4590997 Extending fractures in underground formations |
| 05/27/1986 | US4590996 Use of polyalkoxy sulfonate surfactants for inhibition of scale formation |
| 05/27/1986 | CA1205005A1 Spacer for well control fluid |
| 05/21/1986 | EP0181389A1 Drilling fluid. |
| 05/20/1986 | US4589489 Reducing the adsorption and loss of high molecular weight polymers used in flooding by adding an aqueous solution of a polyoxyalkylene glycol |
| 05/20/1986 | US4589487 Enhanced oil recovery of heavy oils by first injecting an aqueous solution of a carbonate or bicarbonate salt and then a driving fluid |
| 05/13/1986 | US4588445 Washing, water, surfactant, alcohol, turbulence, fluid flow |
| 05/13/1986 | US4588032 Mixture of ethoxylated nonlyphenol, sulfonated ethoxylated alcohol, glycol ether, and ethylene oxide fatty alcohol adduct |
| 05/13/1986 | US4588031 Well cementing process |
| 05/13/1986 | CA1204280A1 Fluid loss additive for well drilling |
| 05/07/1986 | EP0180406A2 Method of treating a subterranean formation |
| 05/06/1986 | US4587283 Cement slurries for deep holes, with a copolymer content for reducing the water loss |
| 05/06/1986 | US4586568 Polymerflood process |
| 04/29/1986 | US4585065 Absorption on surfaces to reduce wetting of a perfluoro==substituted sulfonate |
| 04/29/1986 | US4585064 High strength particulates |
| 04/29/1986 | CA1203681A1 Concentrate suspensions of hydrosoluble polymers |
| 04/23/1986 | EP0178962A1 Method and apparatus for the compression and transportation of a gas comprising a liquid fraction |
| 04/23/1986 | EP0178574A2 Fluid loss additives for oil base muds and low fluid loss compositions thereof |
| 04/22/1986 | US4584386 Lubicant, an ioxidant for drilling fluids |
| 04/22/1986 | US4584358 Calcium-tolerant N-substituted acrylamides as thickeners for aqueous systems |
| 04/22/1986 | US4584339 Dilatant behavior of interpolymer complexes in aqueous solution |
| 04/22/1986 | US4584327 Environmentally compatable high density drilling mud, cement composition or blow-out fluid |
| 04/22/1986 | US4584109 Method of controlling the mobility of flows through fissures, slits or pores |
| 04/22/1986 | US4584108 Dispersible alpha alumina monohydrate having increased viscosifying properties |
| 04/16/1986 | EP0177509A1 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content |
| 04/15/1986 | USRE32114 High molecular weight polymer, micellar dispersion |
| 04/15/1986 | US4582614 Hydroxyethyl cellulose, organic liquid and an aqueous basic solution or suspension |
| 04/15/1986 | US4582543 Water-based metal-containing organic phosphate compositions |
| 04/15/1986 | US4582452 Acrylamide, unsaturated sulfonates and carbonoxylic acids and salts copolymer; thiourea, sodium sulfite or sodium thiosulfate reducing agents |
| 04/15/1986 | US4582139 Slurrying hydraulic cement water and alkanolamine titanium chelateneutralizing agents |
| 04/15/1986 | US4582138 Method for oil recovery from reservoir rock formations |
| 04/15/1986 | US4582137 Polymerizable surfactants for permeability control in waterflooding |
| 04/09/1986 | EP0177376A1 Sulphobetain surfactants, their preparation and their use, especially in the enhanced recovery of petroleum |
| 04/09/1986 | EP0177324A2 Enhanced hydrocarbon recovery by permeability modification with phenolic gels |
| 04/09/1986 | EP0177308A2 Well cementing methods and compositions |
| 04/09/1986 | EP0177158A2 Thickening agents and the manufacture and use thereof |
| 04/09/1986 | EP0177135A2 Method of gravel packing a well |
| 04/09/1986 | EP0177098A2 Surfactant composition and process for the production of oil using such a composition |
| 04/09/1986 | EP0176991A1 Composition and method for corrosion inhibition |
| 04/09/1986 | EP0176990A1 Composition and method for corrosion inhibition |
| 04/09/1986 | EP0176940A2 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides |
| 04/08/1986 | US4581253 Sand coated with melted thermosetting resin; mixing before and during curing |
| 04/08/1986 | US4581147 Dispersant for water-based solids-containing fluids and a drilling fluid |
| 04/08/1986 | US4580633 Increasing the flow of fluids through a permeable formation |
| 04/08/1986 | US4580627 Oil recovery process and system |
| 04/08/1986 | CA1202863A1 Flow control apparatus and method |
| 04/02/1986 | EP0176190A2 Method of fracturing subterranean formations |
| 04/02/1986 | EP0176176A2 Methods for stabilizing swelling clays or migrating fines in subterranean formations |
| 04/02/1986 | EP0175796A1 Schiff base surfactants |
| 04/01/1986 | US4579956 Amino-phosphonates |
| 04/01/1986 | US4579942 Water-soluble cellulose ethers having goog shear-thermal stabilitycharacteristics |
| 04/01/1986 | US4579927 Copolymers of flavanoid tannins and acrylic monomers |
| 04/01/1986 | US4579671 Complex of sulfonated polymer and amine containing polymer |
| 04/01/1986 | US4579670 Transition metal chelates crosslinkers, polyamine promoters, retarders, polysaccharides |
| 04/01/1986 | US4579669 Hydrocarbon oil, water, emulsifier, weighting agent |
| 04/01/1986 | US4579668 Well servicing agents and processes |
| 04/01/1986 | US4579667 Anionic acrylamide polymer and cationic polyamideepichlorohydrin resin |
| 04/01/1986 | US4579175 Method of reducing water production |
| 04/01/1986 | US4579173 Magnetized drive fluids |
| 04/01/1986 | CA1202561A1 Oil recovery process |
| 04/01/1986 | CA1202477A1 Low fluid loss heavy brines containing hydroxyethyl cellulose |
| 03/26/1986 | EP0175517A2 Thickeners |
| 03/26/1986 | EP0175442A1 Compositions and methods for reducing the permeability of underground strata |
| 03/26/1986 | EP0175412A2 Drilling fluid |
| 03/25/1986 | US4578488 Bisalkyl bis(trialkanol amine)zirconates and use of same as thickening agents for aqueous polysaccharide solutions |
| 03/25/1986 | US4578456 Ethoxylated lignite composition and method of preparing |
| 03/25/1986 | US4578201 N-vinyl lactam/unsaturated amide copolymers in thickened acid compositions |
| 03/25/1986 | US4577688 Anionic ourfactants |
| 03/19/1986 | EP0174856A2 Gelled aqueous compositions |
| 03/18/1986 | US4577000 Polyethers, polysulfones |
| 03/18/1986 | US4576978 Method for preparing polymer solutions |
| 03/18/1986 | US4576232 Non-condensible gas injection including alpha-olefin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formation |
| 03/18/1986 | CA1202147A1 Injection water viscosifier for enhanced oil recovery |
| 03/18/1986 | CA1201954A1 High viscosity micro-emulsions, and their preparation |
| 03/18/1986 | CA1201887A1 Method and compositions for fracturing subterranean formations |
| 03/18/1986 | CA1201886A1 Method and compositions for fracturing subterranean formations |
| 03/18/1986 | CA1201885A1 Drilling fluids based on powdered sulfonated thermoplastic polymers |
| 03/12/1986 | EP0174053A1 Compositions for controlling the fluid loss from cement slurries used in well cementing |
| 03/11/1986 | US4575428 Novel surfactant |
| 03/11/1986 | US4574887 Method for preparation of viscous aqueous liquids for wellbore injection |
| 03/11/1986 | US4574886 Combustion of hydrocarbon fuel in water emulsion, metal halide and diammonium phosphate |
| 03/11/1986 | US4574885 Agents for petroleum recovery processes |
| 03/11/1986 | US4574880 For the metering/injection of tracer materials into fluids |
| 03/05/1986 | EP0173176A2 Control of the flow of a liquid in cracks, fissures or pores |
| 03/05/1986 | EP0172938A2 A process for preparing clay containing gels |
| 03/04/1986 | US4574050 Method for preventing the precipitation of ferric compounds during the acid treatment of wells |
| 03/04/1986 | US4573534 Cement compositions and method of cementing casing in a well |
| 03/04/1986 | US4573533 Enhanced oil recovery |
| 03/04/1986 | CA1201282A1 Well completion fluid compositions |
| 03/04/1986 | CA1201281A1 Method for improving injectivities of biopolymer solutions |
| 03/04/1986 | CA1201274A1 Rapidly dissolvable silicates and methods of using the same |
| 02/27/1986 | WO1986001253A1 High-density brine fluid and use in servicing wellbores |
| 02/25/1986 | US4572790 Lubrication additive for aqueous drilling fluids |