| 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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| 10/25/1983 | CA1155988A1 Polymeric well treating method |
| 10/25/1983 | CA1155645A1 Method for reinforcing geological strata |
| 10/25/1983 | CA1155644A1 Improved method for reinforcing geological strata |
| 10/18/1983 | US4410043 Injecting water-soluble salt to precipitate calcium on mineral surfaces, preserving carbon dioxide for oil displacement |
| 10/18/1983 | CA1155361A1 Process for preparing a pumpable surface-active product based on polyether acetic acid |
| 10/12/1983 | EP0091377A1 Well cementing compositions for fighting annular flow of gas under pressure |
| 10/12/1983 | EP0090920A1 Process for recovering oil from a subterranean formation |
| 10/11/1983 | US4409110 Enhanced oil displacement processes and compositions |
| 10/11/1983 | US4409108 Lubricating composition for well fluids |
| 10/11/1983 | US4408664 Injecting water, carbon dioxide, citric acid, kand phosphoric acid |
| 10/11/1983 | CA1154945A1 Thickener from water-swellable material, oil surfactant and water |
| 10/04/1983 | US4407368 Polyurethane ball sealers for well treatment fluid diversion |
| 10/04/1983 | CA1154890A1 Liquid gel concentrates and methods of using the same |
| 10/04/1983 | CA1154558A1 Concentrated fluid composition |
| 09/29/1983 | WO1983003256A1 Hydraulic fluid compositions |
| 09/27/1983 | US4406799 Process for secondary recovery |
| 09/27/1983 | US4406798 Flow control |
| 09/27/1983 | US4406327 Chemically-aided gas cap drive |
| 09/20/1983 | US4405494 Protection of iron metal used in recovering,. transportation and storage of petroleum |
| 09/20/1983 | US4405468 Placid shale weighting agent for water base drilling mud |
| 09/20/1983 | US4405015 With acrylic ester or amide homo-(or co-) polymers |
| 09/14/1983 | EP0088206A2 Method of recovering petroleum from a subterranean reservoir |
| 09/14/1983 | EP0088205A1 Method of recovering predominantly emulsion-free petroleum from a subterranean reservoir |
| 09/14/1983 | EP0088170A1 Self hardening composition and cartridge thereof |
| 09/13/1983 | US4404167 Amino nitrile inhibitors |
| 09/13/1983 | US4404112 Mixture of hydrocarbon oils and polysiloxane having end groups; fracturing; anticlogging agents; gas and oil wells |
| 09/13/1983 | US4404111 N,N-Dimethylacrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymers for enhanced petroleum recovery |
| 09/13/1983 | US4404110 Then sulfonation-used in enhanced oil recovery |
| 09/13/1983 | US4404109 Aqueous micro-emulsions of organic substances |
| 09/13/1983 | US4404108 Additive for drilling fluids |
| 09/13/1983 | US4404107 Raw cotton reacted with dry hydrochloric acid gas |
| 09/07/1983 | EP0087852A1 Hydraulic fracturing propping agent |
| 09/06/1983 | US4403071 Sulfated ethoxylated acrylic acid polymer product |
| 09/06/1983 | US4402881 Amine salt or quaternary ammonium salt activator |
| 09/06/1983 | US4402363 Petroleum recovery, bitumen recovery from tar sand |
| 09/06/1983 | CA1153497A1 Poly-(alpha-alkoxy)acrylamide and poly-(alpha-alkoxy) acrylamide complexes |
| 09/06/1983 | CA1153271A1 Foamed high viscosity aqueous inorganic acid solutions and methods of using the same |
| 09/01/1983 | WO1983002951A1 Drilling fluids and methods of using them |
| 09/01/1983 | WO1983002950A1 Drilling fluids and methods of using them |
| 09/01/1983 | WO1983002949A1 Drilling fluids and methods of using them |
| 08/30/1983 | US4401789 Polymerization of unsaturated monomer in solution containing buffer |
| 08/30/1983 | CA1152984A1 Substituted macrocyclic polyethers |
| 08/30/1983 | CA1152851A1 Micellar solutions of thin film spreading agents comprising a polyether polyol |
| 08/23/1983 | US4399868 Well treatment with nitrogen-generating heating solution |
| 08/23/1983 | US4399866 Method for controlling the flow of subterranean water into a selected zone in a permeable subterranean carbonaceous deposit |
| 08/23/1983 | CA1152428A1 Simultaneous oil recovery and waste disposal process |
| 08/16/1983 | CA1151997A1 Process for stimulating a well with a saline surfactant sulfate, alkanol and acid system |
| 08/09/1983 | US4398003 Emulsion polymerization of vinyl ester |
| 08/09/1983 | US4397354 Thickening fluid having a water-swellable material |
| 08/03/1983 | EP0084966A2 Aqueous compositions containing overbased materials |
| 08/03/1983 | EP0084886A2 Process for increasing the hydrocarbon yield from a subterranean formation |
| 08/02/1983 | US4396731 Compositions of coated water-soluble polymers, their manufacture and their use to prepare aqueous solutions for use in enhanced oil recovery |
| 07/26/1983 | US4395354 Lipo-, heteropolysaccharides; emulsifiers; enhanced oil recovery; aluminum silicate flocculants |
| 07/26/1983 | US4395353 Polyanionic heteropolysaccharide biopolymers |
| 07/26/1983 | US4395341 Use of metronidazole in oil recovery |
| 07/26/1983 | US4395340 Enhanced oil recovery methods and systems |
| 07/21/1983 | WO1983002480A1 Inhibiting the formation of insoluble precipitates in a crude oil sulfonation product |
| 07/21/1983 | WO1983002449A1 Aqua-soluble copolymers, preparation and utilization thereof |
| 07/20/1983 | EP0083974A1 A process for the production of sintered spheres |
| 07/20/1983 | EP0083957A1 Organic gels and method of cleaning pipelines by using said gels |
| 07/20/1983 | EP0083646A1 Self-inverting water-in-oil emulsions of water-soluble polymers and a process for preparing the emulsions |
| 07/19/1983 | US4394273 Defoamers for aqueous liquids containing soluble zinc salts |
| 07/19/1983 | US4393939 Clay stabilization during oil and gas well cementing operations |
| 07/19/1983 | US4393938 Treating wells with ion-exchange-precipitated scale inhibitor |
| 07/19/1983 | US4393937 Olefin sulfonate-improved steam foam drive |
| 07/19/1983 | US4393936 Method for the enhanced recovery of oil and natural gas |
| 07/19/1983 | US4393935 Stimulation of gas wells with phosphate ester surfactants |
| 07/19/1983 | CA1150324A1 Acid dissolvable cements and methods of using the same |
| 07/19/1983 | CA1150244A1 Oil well cementing process and composition |
| 07/12/1983 | US4393151 Enhanced oil recovery |
| 07/12/1983 | US4393089 Food thickener or suspending agent |
| 07/12/1983 | US4393026 Corrosion inhibitors |
| 07/12/1983 | US4392964 Oil well servicing fluids |
| 07/12/1983 | US4392917 Amphoteric water-in-oil self-inverting polymer emulsion |
| 07/12/1983 | CA1149732A1 Method of cementing wells |
| 07/07/1983 | WO1983002296A1 Process for increasing the water discharge of water delivering drilled wells |
| 07/05/1983 | US4391925 Shear thickening well control fluid |
| 07/05/1983 | US4391719 Ethoxylated sulfosuccinate additives for stabilizing solutions of petroleum sulfonates in hard brine |
| 07/05/1983 | US4391643 Rapidly dissolvable silicates and methods of using the same |
| 07/05/1983 | US4391556 Polymerizable compound, catalyst, and oxidizing gas |
| 07/05/1983 | US4391555 Process for consolidating geological formations |
| 07/05/1983 | US4391329 Use of marker fluid in cementing offshore wells |
| 07/05/1983 | CA1149302A1 Emulsans |
| 07/05/1983 | CA1149219A1 Food products containing microfibrillated cellulose |
| 06/29/1983 | EP0082657A2 Polyampholytes and their use |
| 06/29/1983 | EP0082513A1 Process for eliminating H2S from natural gas, crude oil and their mixtures |
| 06/21/1983 | US4389320 Foamable compositions and formations treatment |
| 06/21/1983 | US4389319 High temperature stable viscosifier and fluid loss control system |
| 06/15/1983 | EP0081434A1 Process for the preparation of sulphonates of aromatic hydrocarbons and the use of said sulphonates in the assisted recovery of crude oil |
| 06/15/1983 | EP0081385A1 Reactivatable set-inhibited cementitious compositions |
| 06/14/1983 | US4388214 Imidazoline based corrosion inhibitors which inhibit corrosion caused by CO2 and H2 S |
| 06/14/1983 | US4388213 Carbon dioxide, hydrogen sulfide |
| 06/14/1983 | US4388212 Aqueous systems |
| 06/14/1983 | US4387769 Method for reducing the permeability of subterranean formations |
| 06/14/1983 | CA1148287A1 Rendering porous structures impermeable by treatment with ph insensitive gelable compositions of amide polymers |
| 06/14/1983 | CA1148177A1 Lightweight cement and method of cementing therewith |
| 06/08/1983 | EP0080855A2 Compounds and compositions for oil recovery |
| 06/07/1983 | US4386806 Use of polymeric material that gels under acidic conditions |
| 06/01/1983 | EP0079997A1 Aqueous treatment fluid and method for its use in the drilling of wells |
| 05/31/1983 | US4385999 Sulfonated gilsonite drilling mud additive |