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)
12/1995
12/27/1995EP0688500A1 Method for conservation of aqueous solutions or dispersions
12/27/1995EP0688393A1 Method for isolating a wellbore formation zone
12/27/1995CN1114110A Wellbore fluid
12/26/1995US5478802 Gelling compositions useful for oil field applications
12/23/1995CA2152462A1 Concentrated solution containing a thickening agent, the said solution being dispersable and capable of thickening by dilution in an aqueous medium
12/21/1995WO1995034610A1 Linear alpha-olefin-containing fluid bore-hole treatment agents, in particular corresponding bore-hole flushing agents
12/21/1995CA2151996A1 Method for preserving aqueous solutions or dispersions
12/20/1995EP0687278A1 Polymers containing polyacetal blocks, method of producing them and their use
12/19/1995US5476775 Endo-beta-mannanase, purified from Bacillus strain, that catalyzes degradation of mannan under conditions of high pH, high temperature
12/19/1995US5476543 Environmentally safe well plugging composition
12/19/1995US5476145 Selective placement of a permeability-reducing material in a subterranean interval to inhibit vertical flow through the interval
12/19/1995US5476144 Conversion of oil-base mud to oil mud-cement
12/19/1995US5476142 Flexible contaminant-resistant grout composition and method
12/14/1995WO1995033914A1 Delayed acid for gel breaking
12/14/1995WO1995033581A1 Method for removing alkaline earth metal scale
12/14/1995DE4420455A1 Lineare alpha-Olefine enthaltende fließfähige Bohrlochbehandlungsmittel insbesondere entsprechende Bohrspülungen Linear alpha-olefins containing flowable well treatment means in particular appropriate drilling fluids
12/14/1995CA2147792A1 Quick-set formation treating methods
12/13/1995EP0686177A1 Skeletally isomerized linear olefins
12/13/1995EP0686138A1 2-methylbutoxy ethoxyethanol
12/06/1995EP0685026A1 Method for drilling and cementing a well.
12/06/1995EP0675936A4 Environmentally safe drilling fluid.
12/06/1995EP0581812B1 Method of cementing a well
12/06/1995EP0569484B1 Well cleanout using caustic alkyl polyglycoside compositions
12/06/1995EP0491686B1 Polymers for use in drilling
12/05/1995US5473059 Adding solvent to cationic water soluble quaternary ammonium ethers of polysaccharide of polysaccharide or polyols to form gels or liquids; used in personal care products
12/05/1995US5472937 Invert emulsion drilling mud
12/05/1995US5472051 Including a set retarding additive comprising a copolymer of 2-acrylamido-2-methyl-propane sulfonic acid and acrylic acid
12/05/1995CA2042889C Well cement fluid loss additive and method
12/05/1995CA1337681C Thickening system
11/1995
11/30/1995WO1995032356A1 Additives and method for controlling clathrate hydrates in fluid systems
11/30/1995WO1995032354A1 Method for selectively treating wells with a low viscosity epoxy resin-forming composition
11/30/1995WO1995032265A1 Temperature stable synthetic oil
11/30/1995WO1995032260A1 Emulsifiable oil
11/30/1995WO1995032227A1 Process for producing stable water-in-oil emulsions of hydrolysed polymers of n-vinyl amides and their use
11/30/1995DE4418156A1 Verfahren zur Herstellung von stabilen Wasser-in-Öl-Emulsionen von hydrolysierten Polymerisaten von N-Vinylamiden und ihre Verwendung A process for the preparation of stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides and their use
11/30/1995CA2191200A1 Additives and method for controlling clathrate hydrates in fluid systems
11/30/1995CA2190994A1 Process for producing stable water-in-oil emulsions of hydrolysed polymers of n-vinyl amides and their use
11/28/1995US5470823 Stimulation of coalbed methane production
11/28/1995US5470822 Polymer blends of polyoxyalkylene polymers that can be terminated with ester or amide groups with water and emulsifier
11/22/1995EP0683217A1 Low-toxicity invert emulsion fluids for well drilling
11/22/1995CN1030325C Oil-based well hore fluids and gellants
11/21/1995CA2039965C Foaming agents for carbon dioxide and steam floods
11/19/1995CA2148845A1 Low-toxicity invert emulsion fluids for well drilling
11/16/1995WO1995030818A1 Spotting fluid and lubricant
11/16/1995WO1995030722A1 Surfactant composition
11/16/1995WO1995030643A1 Amide and imide compounds and their use as lubricant oils
11/15/1995EP0681990A1 Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems
11/15/1995EP0681640A1 Application of n,n-dialkylamides to reduce precipitation of asphalt from crude oil
11/14/1995US5465792 Method of controlling production of excess water in oil and gas wells
11/14/1995US5465790 Enhanced oil recovery from heterogeneous reservoirs
11/08/1995EP0681017A1 Method and water-based fluid for controlling dispersion of solids; application to drilling
11/08/1995EP0681016A1 Method and fluids used in a well application for drilling
11/08/1995EP0680504A1 Method of treating shale and clay in hydrocarbon formation drilling
11/07/1995US5464060 Mixing with Portland cement and pozzolana; applying settable filter cake on walls; activating to harden
11/07/1995CA2097358C Process to enhance removal of polymer-containing filter cakes from wellbores and composition therefor
11/02/1995EP0679795A2 Method of controlling fluid loss in a permeable formation
10/1995
10/31/1995US5463165 Scrubbing of oilfield waste gas in subterranean formations
10/31/1995US5462668 Use of steam to condensate to dilute brine stream additives
10/31/1995US5462390 Foamed gel for blocking fluid flow in soil
10/26/1995WO1995028548A1 Enzyme breakers for breaking fracturing fluids and methods of making and using thereof
10/26/1995WO1995028455A1 Glycol and glycol ether lubricants and spotting fluids
10/24/1995US5461028 Fluid-drill-hole treatment agents based on carbonic acid diesters
10/24/1995US5460728 Method for inhibiting the plugging of conduits by gas hydrates
10/24/1995US5460226 Comprising polysaccharide, borate crosslinker, oxidative breaker and precursor that hydrolyzes to lower alkalinity
10/19/1995WO1995027839A1 Enhanced oil recovery from heterogeneous reservoirs
10/18/1995EP0677642A2 Method of breaking downhole viscosified fluids
10/18/1995EP0521120B1 Application of scleroglucane slurries to the drilling of deflected wells
10/17/1995US5459125 Corrosion inhibitor composition and method of use
10/17/1995US5458860 Dissolving
10/17/1995US5458197 Plural serially-injected fluid compositions for removing contaminants
10/17/1995US5458195 Cementing wells; contains portion of drilling fluid
10/12/1995WO1995027122A1 Slag-based well cementing compositions and methods
10/12/1995CA2186868A1 Slag-based well cementing compositions and methods
10/11/1995EP0675937A1 Rheologically controlled, pumpable, fluid aqueous preparations for use for instance as water-based drilling fluids
10/11/1995EP0675936A1 Environmentally safe drilling fluid
10/11/1995EP0418374B1 Sulfate scale dissolution
10/10/1995US5457176 Acid catalyzed process for preparing amino acid polymers
10/10/1995US5456767 Polymerization activated by oxygen corrosion of ferrous metal forming protective coating
10/05/1995WO1995026455A1 Downhole fluid control processes
10/05/1995WO1995026386A1 Drilling mud
10/04/1995CN1109574A Process for recovering and moving highly viscous petroleum products
10/03/1995US5454943 Device for the magnetic treatment of fluids
10/03/1995US5454867 Cement agglomeration
09/1995
09/27/1995EP0673985A1 Methods of reducing fluid loss and polymer concentration of well drilling and servicing fluids
09/27/1995EP0673984A1 Aqueous based drilling fluid additive and composition
09/27/1995EP0673467A1 Method for fracturing high temperature subterranean formations
09/26/1995US5452764 Cementing efficiency in horizontal wellbores via dual density fluids and cements
09/26/1995CA2020229C Well treatment method
09/20/1995EP0672740A1 Well drilling and servicing fluids which deposit an easily removable filter cake
09/20/1995EP0672705A2 Stable high solids polymer compositions and a method for preparing the same
09/20/1995EP0672625A1 Compound for water treatment with polyaspartic acid or a derivative thereof and phosphonic acid
09/20/1995EP0672218A1 High viscosity cross-linked gelled alcohol
09/19/1995CA1337017C Process to retard the formation of hydrates, or to reduce their agglomeration characteristics
09/17/1995CA2144570A1 Stable high solids polymer compositions and a method for preparing the same
09/15/1995WO1995025217A1 Hydrocarbon gels useful in formation fracturing
09/14/1995WO1995024542A1 Methods and compositions for fracturing subterranean formations
09/14/1995WO1995024452A1 Drilling fluids
09/13/1995CN1108266A Acid catalyzed process for preparing amino acid polymers
09/13/1995CN1108265A A process for preparing polymere which contain aspartic acid
09/06/1995EP0670359A1 Aqueous well treatment fluid containing hydrophobically modified cellulose derivatives as fluid loss reducer and method of use
1 ... 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 ... 318