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)
11/2000
11/28/2000US6153669 Drilling compositions and methods
11/28/2000US6153562 For wells
11/28/2000US6152993 Method for inhibiting the plugging of conduits by gas hydrates
11/28/2000US6152234 Method for strengthening a subterranean formation
11/28/2000US6152227 Drilling and cementing through shallow waterflows
11/23/2000WO2000070186A1 Method for acidizing a subterranean formation
11/22/2000CN1274376A Composite proppant, composite filtration media and methods for making and using same
11/22/2000CN1058782C Method for inhibiting hydrate formation
11/22/2000CN1058781C Method for inhibiting hydrate formation
11/21/2000US6149693 Hydrocarbon gels useful in formation fracturing
11/21/2000US6148932 Drilling method and system using foam--foaming composition
11/21/2000US6148917 Method of releasing stuck pipe or tools and spotting fluids therefor
11/21/2000US6148913 Oil and gas field chemicals
11/21/2000US6148911 Method of treating subterranean gas hydrate formations
11/21/2000CA2071722C Composition and method for cementing a well
11/21/2000CA2047485C Cementing oil and gas wells
11/16/2000WO2000068324A2 Enzymatic preservation of water based paints
11/16/2000WO2000029716A3 Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments
11/16/2000CA2368932A1 Enzymatic preservation of water based paints
11/15/2000EP1051452A1 Liquid compositions which reversibly viscosify or gel under the effect of shear
11/15/2000EP1051368A1 Universal well cement additives and methods
11/15/2000EP1051237A1 Surfactant compositions for wellbore operations, method of forming same and methods of using same
11/15/2000CN1058546C Method for drilling and cementing well
11/15/2000CN1058508C Polymer composition and method for improving water dispersion of polymer
11/14/2000US6147034 Gelling agent for hydrocarbon liquid and method of use
11/14/2000US6145592 Comprising polymers having small amount of repeat units incorporating cross-linking group capable of forming chemical bonds with other polymers without additional monomeric cross-linking agents, fluid to be injected from surface
11/14/2000US6145591 Method and compositions for use in cementing
11/09/2000WO2000066882A1 Process for the producing of viscous oil with vapex using a vertical well
11/09/2000WO2000066878A1 Downhole sealing method and composition
11/08/2000EP1050567A1 Additives for the inhibition of gas hydrate formation
11/08/2000CN1272901A Foaming composition
11/08/2000CN1058317C Method for excavating tunnel of tunnel borer and material for feeding to excavator head
11/08/2000CN1058316C Drilling and well-cementing method
11/07/2000US6143709 Applying solutions containing water, ether sulfate, anhydrous isopropanol, potassium chloride clay stablizer, ammonium bisulfide, coco diamine amidobenzylchloride quaternary compound to well bore to form foaming effluent; collecting
11/07/2000US6143699 Making inhibitive electrolyte solution having water and inhibitive compound, mixing with clay to form slurry, injecting said clay slurry into formations to form clay gel; controlling flow of fluid
11/07/2000US6143698 Drilling borehole while circulating mud which comprises a polysaccharide and finely divided solids dispersed to form a filtercake on surfaces of borehole essentially free of oxidants and bromine; introducing filtercake removal fluid
11/07/2000US6143069 Light weight high temperature well cement compositions and methods
11/02/2000WO2000065196A1 Deliberate fluid removal by capillary imbibition
11/02/2000EP1048892A1 Additive composition to improve the transport of flowing petroleums susceptible of containing hydrates and method of using said composition
11/02/2000EP1047748A1 Conductive medium for openhole logging and logging while drilling
10/2000
10/31/2000US6140277 Fluid for breaking filtercake comprising alpha- or beta-amylase, a viscoelastic surfactant comprising n-cis-13-docosenoic-n,n-bis(2-hydroxymethyl)-n-methyl ammonium chloride, and a chelating agent
10/31/2000US6140276 Reducing deposition of wax from crude oil by adding a polyalkyleneimine having a hydroxy-substituted alkyl group of 12-carbon atoms bonded to an n atom directly, or via an ether oxygen or sulfonyl intermediate group; for pipelines
10/31/2000US6139621 Process for producing sulfate cement or sulfate cement aggregates
10/31/2000US6138760 Pre-treatment methods for polymer-containing fluids
10/31/2000US6138759 A hydraulic settable mixture comprised of fly ash, a fluid loss control additive, a gel strength inhibiting additive, a set retarding additive and water
10/31/2000US6138755 Method for enhancing the compatibility of a zinc-brine completion fluid with a fracturing fluid
10/31/2000CA2209790C Microfibrillated cellulose and method for preparing same from primary wall plant pulp, particularly sugar beet pulp
10/31/2000CA2170698C Use of olefinic imines to scavenge sulfur species
10/29/2000CA2307084A1 Formulation of additives for improving the transportation of petroleum effluents liable to contain hydrates, and process using the said formulation
10/29/2000CA2270703A1 A process for non-thermal vapor extraction of viscous oil from a hydrocarbon reservoir using a vertical well configuration
10/26/2000WO2000063527A1 Method and apparatus for reducing fouling of injection and recovery wells
10/26/2000WO2000063134A1 Foamed well cement slurries, additives and methods
10/26/2000CA2367601A1 Method and apparatus for reducing fouling of injection and recovery wells
10/24/2000US6136935 Method for control of fluid loss and gas migration in well cementing
10/24/2000US6135207 Solid, self-sustaining comprising nonylphenol ethoxylate (50) and a fatty amide of 16-20 carbons; melting point above 75 degrees c. to withstand summer heat; low solubility; treating oil and gas wells; efficiency; high specific gravity to sink
10/18/2000EP1044247A1 Water soluble invert emulsions
10/17/2000US6133205 Adding to and mixing with hydrocarbon flowback fluid alkaline aqueous additive solution
10/17/2000US6133204 Selectively inhibiting gelation of polymer solutions in hydrocarbon-bearing zones of formation and/or selectively removing polymer gels from said zones
10/17/2000US6133203 Drilling fluids and additives therefor
10/17/2000US6132617 Method of producing milling adjuvants and/or dispersive agents, by physicochemical separation; adjuvants and agents thus obtained; and uses of the same
10/17/2000US6131661 Drilling the borehole with fluid to form an oxidation degradable filtercake; adding soluble organic hydroperoxide fluid thermoactivatable at the downhole temperature; allowing oxidizing agent to form, degrade filtercake; flushing
10/17/2000US6131657 Method for preventing or inhibiting metal deposition
10/17/2000CA2158789C Method for reducing elemental sulfur pick-up by hydrocarbon fluids in a pipeline
10/12/2000WO2000060023A2 Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids
10/12/2000WO2000059964A1 Regulator for digging mud
10/12/2000DE4491017C2 Verfahren zur Fertigstellung eines Bohrlochs unter Einbringen einer Kiesschüttung neben einer Formation in dem Bohrloch A method for completing a well under introducing a gravel next to a formation in the wellbore
10/12/2000DE19920152C1 Additive for inhibiting formation of gas hydrates comprises a polyglycol-ether carboxylic acid derivative, and a water-soluble polymer
10/12/2000CA2332322A1 Drilling mud conditionning agent
10/11/2000EP1042583A1 Apparatus and method for injecting treatment fluids into an underground formation
10/11/2000EP1042426A1 Invert emulsion drilling fluid containing mixtures of secondary esters obtained by conversion of olefins, and preparation thereof
10/11/2000EP1042425A1 A method for controlling the rheology of an aqueous fluid and gelling agent therefor
10/11/2000CN1269864A Method and compound for inhibiting plugging of conduits by gas hydrates
10/10/2000US6130256 For natural oil systems
10/10/2000US6130199 An alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol.
10/05/2000DE19915090A1 Drill flushing agent for tunnel cutting with water as drilling fluid contains sodium and-or potassium silicate to prevent the drill from sticking due to swollen clay
10/04/2000EP1041242A1 Additive for wellbore fluids
10/04/2000EP1040145A1 Method for grafting lignin, polymerizates produced according to the method and the utilization thereof
10/03/2000US6127319 Oligosaccharide mixture composed of sugar units selected from arabinose, mannose, galactose, glucose, and/or xylose, which consists primarily of pentosans, and/or hexosans; aqueous phase, and oleaginous liquid emulsified into aqueous phase
10/03/2000US6126872 Shell-core polymers
10/03/2000CA2156340C Method of activation of clay and activated clay
09/2000
09/28/2000WO2000057026A1 Grouting compositions
09/28/2000WO2000057023A1 Method of cleaning a well bore prior to installing a water based fluid system
09/28/2000WO2000057022A1 Method for treatment of underground reservoirs
09/28/2000WO2000056835A1 Invert emulsion fluids suitable for drilling
09/28/2000WO2000041480A3 Electrically conductive non-aqueous wellbore fluids
09/28/2000CA2364736A1 Grouting compositions
09/27/2000EP1038937A1 Modified cellulose products
09/27/2000EP1038936A1 Brine fluids with improved corrosion properties
09/27/2000EP1038916A2 Additivation of essentially amorphous cellulose nanofibrils with carboxyl cellulose with a high degree of substitution
09/27/2000CN1056903C Acidization for processing underground reservoirs
09/26/2000US6124382 For maintaining/increasing viscosity of an aqueous medium, adding the copolymer of polyoxyalkylene block and water soluble block (acrylic acid), the blocks joined together by xanthate disulfide or thiuram disulfide linking units
09/26/2000US6124246 High temperature epoxy resin compositions, additives and methods
09/26/2000US6124245 Drilling fluid additive and process therewith
09/26/2000US6124244 Clear brine drill-in fluid
09/26/2000US6123869 Precipitation of scale inhibitors
09/26/2000US6123159 Aphron-containing well drilling and servicing fluids of enhanced stability
09/26/2000CA2044099C Non-hydrocarbon invert emulsions for use in well drilling operations
09/26/2000CA2021656C Water soluble 1,2-dithio-3-thiones
09/21/2000WO2000055277A1 High solids bentonite slurries and method for preparing same
09/21/2000CA2402845A1 High solids bentonite slurries and method for preparing same
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