| 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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| 06/06/1985 | WO1985002408A1 Polymer article of manufacture |
| 06/06/1985 | EP0126141A4 Viscosity increasing additive for non-aqueous fluid systems. |
| 06/06/1985 | EP0097149A4 Process for increasing the water discharge of water delivering drilled wells. |
| 06/05/1985 | EP0143508A2 Additive for water-base drilling fluid and process |
| 06/04/1985 | US4521580 Microemulsion process for producing acrylamide-alkyl acrylamide copolymers |
| 06/04/1985 | US4521579 Enhanced oil recovery using anionic surfactants based on acrylamide and unsaturated sulfanates; stable in brines |
| 06/04/1985 | US4521578 Composition and method of preparation of novel aqueous drilling fluid additives |
| 06/04/1985 | US4521317 Process for manufacturing a microlatex in a continuous oil phase by polymerization of a water-soluble monomer in a water-in-oil microemulsion, resultant microlatices, and their use for enhanced oil recovery |
| 06/04/1985 | US4521316 Oil well completion fluid |
| 06/04/1985 | US4521136 Rapidly dissolvable silicates and methods of using the same |
| 05/28/1985 | US4520182 Flow control agents for water or brines |
| 05/28/1985 | US4519923 Monovalent and polyvalent salts, alkali metal salt of sulfoethyl cellulose |
| 05/28/1985 | US4519922 Environmentally compatible high density drill mud or blow-out control fluid |
| 05/28/1985 | US4519455 Fracturing method for stimulation of wells utilizing carbon dioxide based fluids |
| 05/28/1985 | US4519452 Using heat deactivatable deflocculant |
| 05/28/1985 | CA1188043A1 Methacrylic acid emulsion copolymers for thickening purposes |
| 05/28/1985 | CA1188032A1 Acid group-containing, thermostable, hydrophilic condensation products of aldehydes and ketones |
| 05/28/1985 | CA1187904A1 Oxyalkylated addition products from ethylene oxidepropylene oxide block polymers and bis-glycidyl ethers and their use |
| 05/28/1985 | CA1187691A1 Aqueous well servicing fluids |
| 05/28/1985 | CA1187690A1 Viscous heavy brines |
| 05/28/1985 | CA1187689A1 Heavy brine viscosifiers and uses therefor |
| 05/28/1985 | CA1187688A1 Slurry excavating method |
| 05/28/1985 | CA1187687A1 Low solids well servicing fluids |
| 05/22/1985 | EP0142407A1 Method for delaying gelation of aequeous polymer solutions, solutions obtained by said method, and their use in oil wells |
| 05/22/1985 | EP0142116A2 Agent for sealing boreholes |
| 05/21/1985 | US4518745 Metal chelates of water soluble copolymers |
| 05/21/1985 | US4518511 Delivery of polymeric antiprecipitants in oil wells employing an oil soluble carrier system |
| 05/21/1985 | US4518510 Drilling mud dispersants |
| 05/21/1985 | US4518509 Mixture of polyethylene and alpha-olefin, maleate and maleimide copolymer; flow control agent for crude oil |
| 05/21/1985 | US4518040 Method of fracturing a subterranean formation |
| 05/21/1985 | US4518039 Novolak-coated particles, high strength, coupling, crosslinking |
| 05/21/1985 | US4518038 Method of extracting and reutilizing surfactants from emulsions using sulfonated alkyl benzenes and ethoxylated phenols |
| 05/21/1985 | CA1187275A1 Production of hydrocarbons from hydrates |
| 05/15/1985 | EP0141705A1 Process for the thermal stabilization of aqueous polysaccharide solutions, and its use in drilling fluids |
| 05/15/1985 | EP0141327A1 Hydrosoluble copolymers and their use as dispersants of solid matter |
| 05/15/1985 | EP0038817B1 Shear thickening well control fluid |
| 05/14/1985 | US4517128 Two-tailed surfactants having one aromatic containing tail and their use in chemical waterflooding |
| 05/14/1985 | US4517114 Inhibitors against corrosion caused by CO2 and H2 S in water-in-oil emulsions |
| 05/14/1985 | US4517112 Modified organophilic clay complexes, their preparation and non-aqueous systems containing them |
| 05/14/1985 | US4517102 Method of breaking an emulsion and an emulsion-emulsion breaker composition |
| 05/14/1985 | US4517101 Reduced biodegradability in a polymer flood process |
| 05/14/1985 | US4517100 Lubricating wellbore fluid and method of drilling |
| 05/14/1985 | US4516635 Method of extracting and reutilizing surfactants from emulsions with sulfonated alkyl benzenes and alcohols |
| 05/14/1985 | CA1187038A1 Prevention of hydrogen embrittlement of metals in corrosive environments |
| 05/07/1985 | US4515701 Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails |
| 05/07/1985 | US4515700 Stabilized polysaccharide, enhanced oil recovery |
| 05/07/1985 | US4515699 Chemically cleaning drilling/completion/packer brines |
| 05/07/1985 | US4515635 Copolymer of dimethylacrylamide and 2-acrylamido-2-methylpropane skulfonic acid |
| 05/07/1985 | US4515216 Method of using thixotropic cements for combating lost circulation problems |
| 05/02/1985 | EP0139567A2 Method and composition for inhibiting corrosion |
| 05/02/1985 | EP0139260A1 Phosphonium salt corrosion inhibitors for high density brines |
| 04/30/1985 | US4514310 Flushing with a solution of n-methyl-2-pyrrolidone and salt;drilliing;gas and oil wells; |
| 04/30/1985 | US4514309 Organotitanium esters, borates or boric acid to crosslink hydroxyproply guar and cellulose compounds |
| 04/30/1985 | US4514308 Sulfonated asphalt |
| 04/30/1985 | US4513820 Alkali metal and ammonium salts of sulfonates |
| 04/30/1985 | US4513818 Method for reducing scale in geothermal systems |
| 04/30/1985 | CA1186257A1 Oxygen scavenging with enzymes |
| 04/24/1985 | EP0138594A2 Stabilization of aqueous clay-based drilling fluids |
| 04/24/1985 | EP0138522A2 Organic titanium compositions for use in oil and gas wells |
| 04/24/1985 | EP0138255A2 Process for preparing a heteropolysaccharide, heteropolysaccharide obtained thereby, its use, and strain NCIB 11883 |
| 04/24/1985 | EP0137872A1 Well drilling and completion fluid composition |
| 04/23/1985 | US4512407 Sand consolidation methods using adsorbable catalysts |
| 04/23/1985 | US4512405 Pneumatic transfer of solids into wells |
| 04/23/1985 | US4512404 Micellar slug for oil recovery |
| 04/23/1985 | CA1185912A1 Production of xanthan having a low pyruvate content |
| 04/23/1985 | CA1185779A1 Aqueous wellbore service fluids |
| 04/23/1985 | CA1185778A1 Stable foams and methods of use |
| 04/23/1985 | CA1185777A1 Aqueous treatment fluid and method of use |
| 04/17/1985 | EP0137683A2 Prevention of drilling fluid loss in subterranean formations |
| 04/17/1985 | EP0137538A2 Biopolymer formulations and processes for preparing them |
| 04/17/1985 | EP0137413A1 Copolymers of flavanoid tannins and acrylic monomers |
| 04/17/1985 | EP0137412A2 Composition and method of preparation of novel aqueous drilling fluid additives |
| 04/16/1985 | US4511730 Surfactants, biocides, hydraulic fluids |
| 04/16/1985 | US4511480 Corrosion inhibition in deep gas wells by phosphate esters of poly-oxyalkylated thiols |
| 04/16/1985 | US4511001 Composition and method for corrosion inhibition |
| 04/16/1985 | US4510998 Fluid loss additive for well drilling |
| 04/16/1985 | US4510993 Hydrolyzed polyacrylamide, enhanced oil recovery |
| 04/16/1985 | CA1185620A1 Addition products from ethylene oxide-propylene oxide block polymers and bis-glycidyl ethers, a process for their preparation and their use |
| 04/10/1985 | EP0136773A2 Composition for cross-linking carboxyl polymers and the use thereof in treating subterranean formations |
| 04/09/1985 | US4510059 Reducing the formation of silica deposits |
| 04/09/1985 | US4509598 Fracturing fluids containing bouyant inorganic diverting agent and method of use in hydraulic fracturing of subterranean formations |
| 04/09/1985 | US4509597 Soda-anthraquinone lignin sacrificial agents in oil recovery |
| 04/09/1985 | CA1185231A1 Method for preparing plugging material |
| 04/03/1985 | EP0135953A2 Process for cell disruption |
| 04/03/1985 | EP0135727A1 Polyacrylonitrile having a low K value, process for its preparation and use |
| 04/02/1985 | US4508858 Apparatus and method for preparing polymer solutions |
| 04/02/1985 | US4508629 Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations |
| 04/02/1985 | US4508628 Fast drilling invert emulsion drilling fluids |
| 04/02/1985 | US4508171 Injecting a sulfite-aldehyde slug to produce a surfactant |
| 04/02/1985 | US4508170 Method of increasing the yield of hydrocarbons from a subterranean formation |
| 04/02/1985 | CA1184928A1 Process for preparing propane sulfonates |
| 04/02/1985 | CA1184811A1 Particles covered with a cured infusible thermoset film and process for their production |
| 03/28/1985 | WO1985001309A1 Well drilling, workover and completion fluids |
| 03/26/1985 | US4507440 Cross-linkable and cross linked macromolecular compositions wherein cross-linking is by structural bridges of the formula --NRx --CH═N--CO-- and their preparation |
| 03/26/1985 | US4507223 High concentration surfactant slurry |
| 03/26/1985 | US4507213 Neutralized aluminum salt as activator |
| 03/26/1985 | US4507212 Nitrile compounds as oil field biocides |
| 03/26/1985 | US4507211 Enhanced oil recovery |
| 03/26/1985 | US4507210 Measurement of filtration properties of slurries |
| 03/26/1985 | US4506734 Fracturing fluid breaker system which is activated by fracture closure |