Patents
Sitemap › C09 - Dyes; Paints; Polishes; Natural resins; Adhesives; Compositions not otherwise provided for; Applications of materials not otherwise provided for › C09K - Materials for applications not otherwise provided for; Applications of materials not otherwise provided for › C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
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)
12/1993
12/21/1993US5271464 Temporary plugging agent
12/15/1993EP0574063A1 Gravel packing process with low-viscosity slurry
12/15/1993CN1023139C Selective placement of permeability-reducing material to inhibit fluid communication between near well bore interval and underlying aquifer
12/14/1993US5270382 Compositions and applications thereof of water-soluble copolymers comprising an ampholytic imidazolium inner salt
12/14/1993CA2053780C Oil well treatment composition
12/14/1993CA1325104C Expandable cement composition
12/13/1993CA2098161A1 High temperature wellbore cement slurry
12/09/1993WO1993024199A1 Method for removing alkaline sulfate scale
12/08/1993EP0572857A2 Improved additive composition for oil well cementing formulations
12/08/1993EP0572697A1 Fluid loss additives for water-based drilling muds
12/07/1993US5268112 Silicates, colloidal silica and(or) crosslinked polymer and a base
12/07/1993US5268108 Control of scale deposition in geothermal operations
12/07/1993US5267614 Method for disposing of waste gas in subterranean formations
12/02/1993DE4236680C1 Extracting petroleum from underground beds contg. very salt water - by polymer flooding process, with pre-injection of part of the polymer soln. contg. a sacrificial substance and with reduced salinity
12/02/1993DE4236679C1 Polymer flooding process to recover crude oil from underground deposits - comprising injecting aq. soln. of lignosulphonate as sacrificial material with polymer soln.
12/01/1993EP0572261A1 Set retarded ultra fine cement compositions
12/01/1993EP0572113A1 Aqueous brines
12/01/1993EP0571612A1 Drilling mud composition and process for reducing the filtrate of metal hydroxide mixtures-containing drilling mud compositions.
11/1993
11/30/1993US5266646 Thickeners for waterbase paints; viscosity stabilizers to colorants; heat resistance; blister resistance; color float; syneresis resistance
11/30/1993US5266224 Borate cross-linking solutions
11/30/1993US5266185 Method of suppression of hydrogen sulfide with heterocyclic-amine aldehyde reaction products
11/30/1993US5265979 High efficiency waste placement system for municipal landfills
11/30/1993CA1324776C Process for the purification of a wort of polysaccharide to enhance its filtrability, and use of the purified wort in assisted recovery of petroleum
11/30/1993CA1324753C Method of remedial cement squeezing using phenolic-aldehyde gels
11/25/1993WO1993023491A1 Functional fluid
11/24/1993EP0427835A4 Non-damaging workover and completion fluid
11/23/1993US5264470 Set retarding additives, cement compositions and methods
11/23/1993US5264141 Methods of reducing precipitation from acid solutions
11/23/1993US5263542 Well bores; methylenephosphonic acid derivatives
11/23/1993US5263541 Polyvinyl sulfonate, polyacrylic acid; enhanced oil recovery
11/23/1993US5263540 Crosslinked hydroxyethylcellulose and its uses
11/23/1993US5263539 Scale inhibition during oil production
11/23/1993US5263360 Low permeability subterranean formation testing methods and apparatus
11/18/1993EP0569484A1 Well cleanout using caustic alkyl polyglycoside compositions.
11/16/1993US5262452 Butadiene-styrene latex with anionic and nonionic surfactants
11/11/1993WO1993022538A1 Method for excavating tunnels, utilisation of a foaming agent and new composition
11/11/1993WO1993022537A1 Microencapsulated oil field chemicals and process for their use
11/10/1993CN1078290A Method of maintaining subterranean formation permeability and inhibiting clay swelling
11/10/1993CN1022678C Process for preparing sulfur solvent compositions
11/09/1993US5260391 Cement additive
11/09/1993US5260269 Method of drilling with shale stabilizing mud system comprising polycyclicpolyetherpolyol
11/09/1993US5260268 Methods of drilling well boreholes and compositions used therein
11/09/1993US5259980 Aqueous alkaline solution of polyaminocarboxylic acid and synergistic amount of oxalate anion; strontium/barium sulfates
11/09/1993US5259455 Adding fluoride releasing agent to precipitate magnesium fluoride; by-product inhibition
11/03/1993EP0552330A4 Drilling, completion, and workover fluids comprising ground peanut hulls
11/02/1993US5258428 Additive composition for oil well cementing formulations
11/02/1993US5258137 Viscoelastic surfactant based foam fluids
11/02/1993US5258072 Butadiene-styrene copolymer, alkylphenol ethoxylate nonionic surfactant, alkoxylated amines or ethylene oxide-propylene oxide copolymer with water
11/02/1993US5257664 Steam injection profile control agent and process
10/1993
10/28/1993WO1993021418A1 Use of pressurized medium in drilling
10/28/1993CA2132426A1 Use of pressurized medium in drilling
10/26/1993US5256729 Nitrile derivative for sand control
10/26/1993US5256315 Gellable aqueous compositions containing polymers with special chelating functional groups useful for recovering oil from an oil field
10/26/1993US5256182 Microbiocidal combinations of materials and their use
10/20/1993EP0566394A1 Gas well treatment compositions and methods
10/20/1993EP0566028A1 Gelable compositions of water soluble polymers
10/20/1993EP0566012A1 Cement used in deep drilling and method for making same
10/20/1993CN1077467A Gelation of water soluble polymers
10/19/1993US5254531 Oleophilic basic amine compounds as an additive for invert drilling muds
10/19/1993US5254385 Polymer coated; storage stability
10/19/1993US5253711 Using alkaline earth metal and zinc peroxides; delayed breaking of fracturing fluids in subterranean formation
10/19/1993US5253707 Injection well fracturing method
10/19/1993CA1323375C Process for delaying the gelling process of insaturated monomers; compositions with delayed gelling containing said monomers and use of these compositions for processing subsurface deposits
10/15/1993CA2093505A1 Invert emulsions for well drilling comprising polydiorganosiloxanes
10/15/1993CA2093485A1 Deep-drilling cement and process for the preparation thereof
10/13/1993EP0565187A1 Drilling muds effective at high temperature
10/13/1993EP0565042A2 Process for reducing or complete setting of water production during drilling for oil and/or hydrocarbon gas recovery
10/13/1993EP0549693A4 Process for producing bentonite clays exhibiting enhanced solution viscosity properties
10/13/1993CN1077212A Compositions containing esters of carboxy-containing interpolymers and methods of using the same
10/12/1993US5252554 Drilling fluids and muds containing selected ester oils
10/12/1993US5252236 For a water based well treating fluid
10/12/1993US5252235 Borate cross-linking solutions
10/12/1993US5252234 Borate cross-linking solutions
10/12/1993US5252128 Styrene-butadiene latex with nonionic and anionic surfactants; low fluid loss and free water valves
10/12/1993US5251699 Low-viscosity gravel packing process
10/12/1993US5251698 Method of using lignosulfonate-acrylic acid graft copolymers as sacrificial agents for surfactant flooding
10/06/1993EP0564294A1 Squeeze cementing
10/05/1993US5250586 Method for the production of finely divided water soluble polymers
10/05/1993US5250225 For injecting into mixtures of oils, natural gas, water and/or brines
10/05/1993US5249627 Method for stimulating methane production from coal seams
09/1993
09/30/1993WO1993019282A1 Fiber reinforced gel for use in subterranean treatment process
09/30/1993WO1993019226A1 Low melting polyalkylenepolyamine corrosion inhibitors
09/28/1993US5248664 Water base drilling fluids comprising oil-in-alcohol emulsion
09/28/1993US5248641 Process for producing bentonite clays exhibiting enhanced solution viscosity properties
09/28/1993US5247995 Degrading material in subterranean formations using enzymes
09/28/1993US5247993 Enhanced imbibition oil recovery process
09/28/1993US5247992 Using acid
09/22/1993EP0561608A2 Compositions containing esters of carboxy-containing interpolymers and methods of using the same
09/22/1993EP0561607A2 Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
09/22/1993EP0561601A2 Compositions containing derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
09/22/1993EP0561508A1 Liquid ammoniation of ground leonardite ore for dust suppression
09/22/1993CN1076471A Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
09/21/1993US5246602 Method and composition fracturing subterranean formations
09/21/1993US5246597 Method of treating a spent caustic stream from a sour water stripper to reduce the sulfide content thereof
09/21/1993US5246073 Injecting crosslinkable polymers or the monomers therof, crosslinking agent, buffering agent and water
09/21/1993US5246072 Method for enhancing the recovery of petroleum from an oil-bearing formation using a mixture including anionic and cationic surfactants
09/19/1993CA2090273A1 Ammoniation of ground leonardite ore for dust suppression
09/18/1993CA2091420A1 Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
09/18/1993CA2091419A1 Compositions containing esters of carboxy-containing interpolymers and methods of using the same
09/18/1993CA2091402A1 Compositions containing derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
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