| 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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| 01/10/1989 | CA1248344A1 Casing pack and method for controlling external well casing corrosion |
| 01/10/1989 | CA1248343A1 Stable forms of polyalkylaromatic sulfonates |
| 01/10/1989 | CA1248341A1 Oil recovery agent |
| 01/10/1989 | CA1248340A1 Olefin sulphonate composition |
| 01/10/1989 | CA1248339A1 Scale removal treatment |
| 01/10/1989 | CA1248338A2 Compositions and methods for reducing the permeability of underground strata |
| 01/10/1989 | CA1248337A1 Well drilling, workover and completion fluids |
| 01/04/1989 | CN1030118A Steam enhanced oil recovery method using branched alkyl aromatic sulforates |
| 01/03/1989 | US4795784 Polyacrylamide |
| 01/03/1989 | US4795772 Ethylacrylate terpolymer, polyether surfactant |
| 01/03/1989 | US4795770 Cement composition for oil well drilling holes containing high molecular weight poly (vinylamines) |
| 01/03/1989 | US4795575 Displacing oil in an oil recovery process using as a solution thickener a partially hydrolyzed polyacrylamide |
| 01/03/1989 | US4795574 Low temperature breakers for gelled fracturing fluids |
| 01/03/1989 | CA1248014A1 Miscible oil recovery process |
| 01/03/1989 | CA1247851A2 Compositions and methods for reducing the permeability of underground strata |
| 01/03/1989 | CA1247850A1 Steam foam process |
| 12/29/1988 | WO1988010356A1 Method and apparatus for cleaning wells |
| 12/29/1988 | WO1988010183A1 Treated wood fiber having hydrophobic and oleophilic properties |
| 12/28/1988 | EP0296655A1 High-temperature diverting agent system for the oil industry, and corresponding treatment process |
| 12/28/1988 | CA1247607A Process for the heat stabilization of aqueous solutions of polysaccharides |
| 12/28/1988 | CA1247355A Gelling organic liquids |
| 12/28/1988 | CA1247354A Oil base well treating fluids thickened by block copolymers |
| 12/28/1988 | CA1247353A Acidizing method using microemulsion |
| 12/27/1988 | US4794140 Production process for manufacturing low molecular weight water soluble acrylic polymers as drilling fluid additives |
| 12/27/1988 | US4793419 Adding lignosulfonate to caustic floods to shift optimal salinity to a higher salinity |
| 12/27/1988 | US4793416 Organic crosslinking of polymers for CO2 flooding profile control |
| 12/22/1988 | EP0290486A4 Corrosion inhibitors for clear, calcium-free high density fluids. |
| 12/22/1988 | EP0289529A4 Viscosifiers for brines utilizing hydrophilic polymer-mineral oil systems. |
| 12/22/1988 | EP0275304A4 Calcium-free clear high density fluids. |
| 12/21/1988 | EP0295877A2 Method and composition for viscosifying hydrocarbons |
| 12/21/1988 | EP0295615A1 Compositions containing high molecular weight poly (vinylamines) for enhanced oil recovery |
| 12/21/1988 | EP0295614A1 Acidized fracturing fluids containing high molecular weight poly(vinylamines) for enhanced oil recovery |
| 12/21/1988 | CN88103321A Sulfur dissolving composition |
| 12/20/1988 | US4792593 Acrylamide, metal acrylate monomer, alkyl poly(etheroxy) acrylate terpolymer |
| 12/20/1988 | US4792412 High temperature stable aqueous brine fluids viscosified by polyvinylpyrrolidone |
| 12/20/1988 | US4792343 Dispersing agents |
| 12/20/1988 | US4792262 Process for strengthening geological formations |
| 12/20/1988 | US4791989 Low fluid loss salt saturated cement slurries, additives and methods |
| 12/20/1988 | CA1247296A1 Process for forming acrylamide-alkyl acrylamide copolymers |
| 12/20/1988 | CA1247295A1 Micellar process for the formation of acrylamide- alkyl acrylamide copolymers |
| 12/20/1988 | CA1247270A1 Gelled aqueous compositions |
| 12/20/1988 | CA1247033A1 Polysaccharide polymer made by xanthomonas |
| 12/20/1988 | CA1246992A1 Method of altering the permeability of a hydrocarbon- containing subterranean formation |
| 12/20/1988 | CA1246858A1 Method and composition for inhibiting corrosion |
| 12/20/1988 | CA1246857A1 Flexible grout composition and method |
| 12/20/1988 | CA1246856A1 Oil reservoir permeability control using polymeric gels |
| 12/20/1988 | CA1246855A1 Water swellable clay composition and method to maintain stability in salt contaminated water |
| 12/20/1988 | CA1246854A1 Applications of scleroglucane in the treatment of oil wells and oil drilling installations |
| 12/20/1988 | CA1246853A1 Am/amps fluid loss additive blend for well cementing compositions |
| 12/20/1988 | CA1246852A1 Aqueous acid gels and use thereof |
| 12/20/1988 | CA1246851A1 Method for reducing the permeability of a subterranean formation |
| 12/20/1988 | CA1246850A1 Liquid fluid loss control additive for oil field cements |
| 12/19/1988 | EP0194254A4 High-density brine fluid and use in servicing wellbores. |
| 12/14/1988 | EP0294641A2 Polyaralkylated hydroxybenzamides, process for their preparation and their use |
| 12/13/1988 | US4790958 Chemical method of ferric ion removal from acid solutions |
| 12/13/1988 | US4790954 Reacting monodispersed monolayer hydroxide gels with hydrophilic organics; oil drilling |
| 12/13/1988 | US4790382 Alkylated oxidized lignins as surfactants |
| 12/13/1988 | CA1246555A1 Polysaccharides, methods for preparing such polysaccharides and fluids utilizing such polysaccharides |
| 12/13/1988 | CA1246480A1 Method of removing solid wax structures deposited in oil and gas facilities |
| 12/13/1988 | CA1246332A1 Process for preparing pre-cured proppant charge |
| 12/07/1988 | EP0294143A2 Reducing permeability of highly permeable zones in oil and gas formations |
| 12/07/1988 | EP0159313B1 Well drilling, workover and completion fluids |
| 12/06/1988 | US4789523 Cationic and anionic lignin amines corrosion inhibitors |
| 12/06/1988 | US4789030 Hydrodesulfurization with cobalt (molybdenum) catalyst after separation of gaseous hydrocarbon fraction |
| 12/06/1988 | CA1245845A1 Enhanced hydrocarbon recovery by permeability modification with phenolic gels |
| 11/30/1988 | EP0293191A2 Drilling and completion fluid |
| 11/30/1988 | EP0292826A2 Well wash system |
| 11/29/1988 | US4788247 Terpolymers of acrylamide, alkyl polyetheroxyacrylate and betaine monomers |
| 11/29/1988 | US4788228 N,n'-dialkylacrylamide-acrylic acid or salt copolymer; polyvalent metal crosslinking agent |
| 11/29/1988 | US4787994 Method for preparation of hydrocarbon fracturing fluids, fluids prepared thereby, and methods related thereto |
| 11/29/1988 | US4787990 Low toxicity oil-based drilling fluid |
| 11/29/1988 | US4787960 For wood pulp |
| 11/29/1988 | US4787456 Increased permeability-simultaneous high energy fracturing and acidification |
| 11/29/1988 | US4787455 Method for scale and corrosion inhibition in a well penetrating a subterranean formation |
| 11/29/1988 | US4787454 Enhanced oil recovery |
| 11/29/1988 | US4787453 Injecting water soluble monosiliconorgano compound |
| 11/29/1988 | US4787451 Melamine/formaldehyde cross-linking of polymers for profile control |
| 11/23/1988 | EP0291543A1 Carboxymethyl guar based drilling fluids |
| 11/22/1988 | US4785884 Consolidation of partially cured resin coated particulate material |
| 11/22/1988 | US4785883 Polysilicate esters for oil reservoir permeability control |
| 11/17/1988 | EP0291182A2 Aminoalkylated polyacrylamide aldehyde gels, their preparation and use in oil recovery |
| 11/17/1988 | EP0290899A2 Drilling fluids additive, preparation and use |
| 11/17/1988 | EP0290659A1 Rigidification of semi-solid agglomerations |
| 11/17/1988 | EP0290486A1 Corrosion inhibitors for clear, calcium-free high density fluids. |
| 11/15/1988 | US4785028 Gels for profile control in enhanced oil recovery under harsh conditions |
| 11/15/1988 | US4784797 Aldehyde reacted with diamine followed by salt formation or quaternization |
| 11/15/1988 | US4784796 Corrosion inhibitors |
| 11/15/1988 | US4784779 Corrosion inhibitors for clear, calcium-free high density fluids |
| 11/15/1988 | US4784778 Corrosion inhibiting composition for zinc halide-based clear, high density fluids |
| 11/15/1988 | US4784694 Compositions of polymer systems, and their use for example in hydraulic fracturing |
| 11/15/1988 | US4784693 Cellulose ethers, cellulose esters |
| 11/15/1988 | CA1244640A1 High temperature well cement composition |
| 11/09/1988 | EP0289951A2 Sulfur dissolving composition |
| 11/09/1988 | EP0289950A2 Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur |
| 11/09/1988 | EP0289665A1 Process and composition for inhibiting iron and steel corrosion |
| 11/09/1988 | EP0289529A1 Viscosifiers for brines utilizing hydrophilic polymer-mineral oil systems. |
| 11/08/1988 | US4783492 Water soluble or dispersable polymer and crosslinking agent |
| 11/08/1988 | US4782901 Complexing polysaccharide with metal compound; injection into formation |
| 11/08/1988 | US4782900 Using glutaraldehyde or glyoxal crosslinkers; reducing water encroachment |
| 11/08/1988 | CA1244584A1 Prepartially crosslinked gel for retarding fluid flow |