| 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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| 10/25/1994 | US5358052 Injecting carbon dioxide and a solvent for the oil prior to injecting hydrogen fluoride to react with clays |
| 10/25/1994 | US5358051 Forming a gel in subsurface formations by injecting a self-crosslinking monomer selected from hydroxy unsaturated carbonyl compounds; decreases water flow |
| 10/25/1994 | US5358050 Method for killing a gas blowout of a well |
| 10/25/1994 | US5358049 Conversion of emulsion mud to cement |
| 10/25/1994 | US5358047 Injecting to stimulate subterranean formation; includes a proppant material; hardening |
| 10/25/1994 | US5358046 Oil recovery process utilizing a supercritical carbon dioxide emulsion |
| 10/25/1994 | US5358045 Enhanced oil recovery method employing a high temperature brine tolerant foam-forming composition |
| 10/25/1994 | US5358044 Activator system; components of drilling fluid have dual functionality as promoters and thereafter in being constituents of cementitious slurry |
| 10/25/1994 | US5358043 Injecting for well bore treatment: an acrylamide-containing water-soluble polymer, an iron compound, a ketone compound and a liquid |
| 10/25/1994 | CA1332669C Composition suited for addition to ground excavation stabilizing liquid, stabilizing liquid composition, and ground excavation method |
| 10/18/1994 | US5355958 Low viscosity acid-in-oil emulsions and methods |
| 10/18/1994 | US5355955 Cement set retarding additives, compositions and methods |
| 10/18/1994 | US5355954 Utilizing drilling fluid in well cementing operations |
| 10/18/1994 | CA2035423C Gelation of acrylamide containing polymers with furfuryl alcohol and water dispersible aldehydes |
| 10/18/1994 | CA2016417C Lost circulation fluid for oil field drilling operations |
| 10/18/1994 | CA1332502C Well drilling fluid and method |
| 10/13/1994 | WO1994023178A1 Foamed gels to reduce gas coning in matrix environments |
| 10/13/1994 | WO1994019575A3 Oil well wax removal fluid |
| 10/12/1994 | EP0619415A2 Control of particulate flowback in subterranean wells |
| 10/12/1994 | EP0619414A1 Method for cementing a pipe in a wellbore |
| 10/12/1994 | EP0619340A2 Thermally stable thiosulfate hydroxyethylcellulose suspension |
| 10/12/1994 | EP0618995A1 Use of selected inhibitors against the formation of solid organic-based incrustations from fluid hydrocarbon mixtures |
| 10/12/1994 | EP0618886A1 Fluid loss additives for cementing compositions |
| 10/11/1994 | US5354786 Fluid loss control composition |
| 10/11/1994 | US5354507 Imine inhibitors, or dimers thereof |
| 10/11/1994 | US5353874 Horizontal wellbore stimulation technique |
| 10/11/1994 | CA2028221C Treating underground formations |
| 10/05/1994 | EP0618346A2 Placing a scale inhibitor within a brine-containing subterranean formation |
| 10/05/1994 | EP0618344A2 Downhole cement composition |
| 10/05/1994 | EP0618243A2 Polyurethane based binder preparation and its use to bind aqueous systems |
| 10/04/1994 | US5351759 Slag-cement displacement by direct fluid contact |
| 10/04/1994 | US5351757 Method for silica gel emplacement for enhanced oil recovery |
| 10/02/1994 | CA2120198A1 Methods of displacing liquids through pipes |
| 09/29/1994 | WO1994021886A1 Method for isolating a wellbore formation zone |
| 09/29/1994 | CA2157409A1 A method for isolating a zone of a formation or reservoir penetrated by a wellbore |
| 09/28/1994 | EP0617106A1 Fluid composition comprising a metal aluminate or a viscosity promoter and a magnesium compound and process using the composition |
| 09/28/1994 | EP0616660A1 Method of propagating a hydraulic fracture using fluid loss control particulates |
| 09/27/1994 | US5350740 Controlling swelling of clays with quaternary ammonium compounds |
| 09/27/1994 | US5350528 Method of supporting fractures in geological formations and hydraulic fluid composition for same |
| 09/23/1994 | CA2092169A1 Oil soluble alkoxylated surfactants from lignin |
| 09/21/1994 | EP0615539A1 Drilling mud additive. |
| 09/21/1994 | CN1092456A Method for blocking rock layer from percolation of water |
| 09/20/1994 | US5348938 Oleophilic alcohols as a constituent of invert drilling fluids |
| 09/20/1994 | US5348584 Fine particle size hydraulic cement with deposited alkali/ne earth/ alkylbenzenesulfonate surfactant; forming slurry by mixing low viscosity hydrocarbon liquid with the cement; use to terminate water flow in subterranean formations |
| 09/16/1994 | CA2115623A1 Process for the thermo-chemical dewaxing of hydrocarbon transmission conduits |
| 09/15/1994 | WO1994020557A1 Polymers containing polyacetal blocks, method of producing them and their use |
| 09/15/1994 | DE4307334A1 Process and system for the production of inoculation material for improved crude oil production |
| 09/14/1994 | EP0614859A2 High temperature retarders for oil field cements, cement slurries and corresponding cementing processes |
| 09/14/1994 | EP0614709A2 In-situ remediation of contaminated soils |
| 09/14/1994 | EP0614482A1 Fire retarded solvents |
| 09/14/1994 | EP0472558B1 The use of selected oleophilic alcohols in water-based drilling fluids of the o/w emulsion type and corresponding drilling fluids with improved ecological acceptability |
| 09/13/1994 | US5346614 Removal of hydrogen sulfide from an oil-containing mixture having a continuous aqueous phase |
| 09/13/1994 | US5346550 Low temperature well cementing compositions and methods |
| 09/13/1994 | US5346013 Method for reducing or completely stopping the influx of water in boreholes for the extraction of oil and/or hydrocarbon gas |
| 09/13/1994 | US5346012 Fine particle size cement compositions and methods |
| 09/13/1994 | US5346011 Methods of displacing liquids through pipes |
| 09/13/1994 | US5346010 Precipitation of scale inhibitors in subterranean formations |
| 09/13/1994 | US5346009 Precipitation of scale inhibitors |
| 09/13/1994 | US5346008 Polymer enhanced foam for treating gas override or gas channeling |
| 09/06/1994 | US5344818 Mud additives for oil wells containing sodium or potassium ferrocyanide |
| 09/06/1994 | US5344817 Glycerophosphates |
| 09/06/1994 | US5343952 Cement plug for well abandonment |
| 09/06/1994 | US5343951 Drilling and cementing slim hole wells |
| 09/06/1994 | US5343950 Drilling and cementing extended reach boreholes |
| 09/06/1994 | US5343948 Sand control agent and process |
| 09/06/1994 | US5343947 Anchor plug for open hole test tools |
| 09/06/1994 | CA1331903C Water dispersible hydrophobic thickening agent |
| 09/01/1994 | WO1994019577A1 Method for installing a gravel pack completion in a well |
| 09/01/1994 | WO1994019575A2 Oil well wax removal fluid |
| 09/01/1994 | WO1994019574A1 Method for drilling and cementing a well |
| 09/01/1994 | CA2156856A1 Method for drilling and cementing a well |
| 08/31/1994 | EP0612914A2 Reducing scale deposition in an aqueous phase producing wellbore |
| 08/30/1994 | US5342530 Using a cationic polyelectrolyte and salt mixture |
| 08/30/1994 | US5341882 Well drilling cuttings disposal |
| 08/30/1994 | US5341881 Cement set retarding additives, compositions and methods |
| 08/30/1994 | US5341878 Injecting aqueous alkaline salt solution; recovering hydrocarbons from underground formation |
| 08/30/1994 | US5341876 Below fracture pressure pulsed gel injection method |
| 08/30/1994 | US5341875 Injection of phosphorus nutrient sources under acid conditions for subterranean microbial processes |
| 08/24/1994 | EP0611824A1 Composition comprising a xanthan broth and proteins and use thereof in a well drilling fluid |
| 08/23/1994 | US5340860 Low fluid loss cement compositions, fluid loss reducing additives and methods |
| 08/23/1994 | US5340397 A pumpable aqueous slurry consisting of a methylenephosphonic acid derivative to prevent premature gelation |
| 08/23/1994 | US5339903 Method for control of gas migration in well cementing |
| 08/23/1994 | US5339902 Well cementing using permeable cement |
| 08/23/1994 | US5339900 Process for recovering hydrocarbon |
| 08/23/1994 | CA2043520C Gelatin of acrylamide-containing polymers with amino benzoic acid compounds and water dispersible aldehydes |
| 08/18/1994 | WO1994019288A1 Process for preventing deposits in a structure's drainage system |
| 08/18/1994 | WO1994018431A1 Enhanced oil recovery method employing a high temperature brine tolerant foam-forming composition |
| 08/18/1994 | WO1994018430A1 Application of n,n-dialkylamides to reduce precipitation of asphalt from crude oil |
| 08/18/1994 | CA2117911A1 A process for preventing the formation of deposits in a construction drainage system |
| 08/18/1994 | CA2115886A1 Process and fluid for the recovery of oil in reservoirs with aquifer |
| 08/17/1994 | EP0611081A2 Fine particle size cement compositions |
| 08/17/1994 | EP0610393A1 Thermally stable oil-base drilling fluid |
| 08/17/1994 | CA2115806A1 Composition containing a xanthan wort and proteins, and utilization of this composition in a fluid for the boring of a well |
| 08/16/1994 | US5338870 Thermal condensation of polyhydric alcohols to form polyethercyclicpolyols |
| 08/16/1994 | US5338465 Aqueous gellable composition with delayed gelling time |
| 08/16/1994 | US5337825 Antiswelling, deagglomerating the aluminous particles in a zone nearby by treating with a low alkaline solutions |
| 08/16/1994 | US5337824 Coal slag universal fluid |
| 08/16/1994 | US5337820 Injection of scale inhibitors for subterranean microbial processes |
| 08/10/1994 | CN1025627C Slurry for drilling of active clay surface substantially without sodium |
| 08/09/1994 | US5336647 Thickeners and gellants comprising the reaction product of a smectite-type clay, an ammonium, phosphonium or sulfonium salt and a polyalkoxylated ammonium, phosphonium or sulfonium salt; synergistic; coatings |