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)
12/1997
12/02/1997	US5693837 Salt formation by reacting ferric sulfate, alkylamine and citric acid; used as gelling agents combined with orthophosphate ester for hydrocarbons used in fracturing petroleum producing formations
12/02/1997	US5693698 Compositions comprising an acrylamide-containing polymer and process therewith
12/02/1997	US5692566 Formation treating method
11/1997
11/27/1997	WO1997044416A1 Biodegradable synthetic ester base stocks formed from branched oxo acids
11/27/1997	WO1997044405A1 Clay-free biodegradable wellbore fluid and method for using said fluid
11/27/1997	CA2254920A1 Clay-free biodegradable wellbore fluid and method for using said fluid
11/25/1997	US5691281 Well fluids based on low viscosity synthetic hydrocarbons
11/25/1997	US5690176 Composition effective in removing asphaltenes
11/25/1997	US5690174 Antiscale
11/19/1997	EP0807151A1 Polymeric earth support fluid compositions and method for their use
11/19/1997	CN1165236A Chemically induced stimulation of coal cleat formation
11/18/1997	US5688844 Resilient well cement compositions and methods
11/18/1997	CA2050241C Heterocyclic-amine aldehyde reaction products useful for the suppression of hydrogen sulfide
11/13/1997	WO1997042397A1 High-viscosity aqueous fluid composition
11/11/1997	US5686396 Efficiency of polyglycerol with other additives to remove water from shale
11/11/1997	US5686299 Method and apparatus for determining nutrient stimulation of biological processes
11/11/1997	US5685371 Injecting steam and hydrocarbon solvent
11/08/1997	CA2217891A1 Fracture treatment system for wells
11/06/1997	WO1997041330A2 Multi-lateral wellbore system and method for forming same
11/05/1997	EP0805260A2 On-the-fly control of delayed borate-crosslinking of fracturing fluids
11/05/1997	EP0804383A1 Silicate solutions
11/04/1997	US5684075 Compositions comprising an acrylamide-containing polymer and process therewith
11/04/1997	US5682951 Foamed gel completion, workover, and kill fluid
10/1997
10/29/1997	EP0803024A1 Method of degrading cellulose-containing fluids during completion operations of oil and gas wells
10/29/1997	EP0705242B1 Surfactant, process for its production and use
10/28/1997	US5681796 Borate crosslinked fracturing fluid and method
10/28/1997	US5680900 Method for enhancing fluid loss control in subterranean formation
10/28/1997	CA2031656C Alkoxylated alkyl glucoside ether quaternaries useful in personal care
10/23/1997	WO1997038951A1 Slag cement and process using hydrophobically modified galactomannans as filtrate reductants
10/22/1997	EP0802253A1 Well drilling fluids
10/22/1997	EP0646216B1 Stabilizing compositions and methods for stabilizing subterranean formations
10/21/1997	US5679761 For inhibiting salt precipitation in aqueous systems; builders for detergents
10/21/1997	US5678632 Injecting an enzyme substrate which is capable of being converted into an organic acid along with the enzyme
10/21/1997	US5678631 Cleaning with aqueous solution of ether amine and alkene alcohol
10/15/1997	EP0800613A1 Acid treatment method for siliceous formations
10/15/1997	EP0800611A1 Oil and gas field chemicals
10/15/1997	EP0800562A1 Delayed breaking of gelled hydrocarbon fracturing fluid
10/14/1997	US5678239 Reducing particle size of naturally occurring radioactive material to match that of particulate drilling mud component, diluting to nullify radioactive nature
10/14/1997	US5677267 Thixotropic fluid for well insulation
10/14/1997	US5677266 Method for inhibiting reactive argillaceous formations and use thereof in a drilling fluid
10/14/1997	US5676763 Process for cleaning pipe dope and other solids from well systems
10/09/1997	WO1997037103A1 Method and system for monitoring a characteristic of an earth formation in a well
10/08/1997	EP0799968A2 Method for breaking viscosified fluids
10/08/1997	EP0799364A1 Oil and gas field chemicals
10/08/1997	EP0642561B1 Functional fluid
10/07/1997	USH1685 Consists of liquid carrier medium and weighing agent of zinc oxide or zirconium oxide having particle size range of 4 to 200 microns, used in geopressurized horizontal wells
10/07/1997	US5674938 Obtained by reacting low viscosity hydrolysis product of dichlorodimethylsilane, low viscosity polydiorganosiloxane, selected silicon compound, hydrophilic silicic acid in presence of catalyst
10/07/1997	US5674817 Consists of thioalkyl acid or derivativs as reducing agent for reducing ferric iron to ferrous iron, thus prevents the precipitation of ferric compounds or undesirable crosslinking of polymer
10/07/1997	US5674377 Method of treating sour gas and liquid hydrocarbon
10/07/1997	US5673753 In-situ cementation by addition of blast furnace slag
10/07/1997	CA2111406C Water dispersible thickeners comprising hydrophilic polymers coated with particulate fatty acids or the salts thereof
10/07/1997	CA2068223C Improved process for particle circulation in a porous medium
10/01/1997	EP0798267A1 Organoclay compositions manufactured with organic acid ester-derived quaternary ammonium compounds, their preparation and non-aqueous fluid systems containing such compositions
10/01/1997	EP0797601A1 Process for producing stable water-in-oil emulsions of hydrolysed polymers of n-vinyl amides and their use
10/01/1997	EP0712330B1 Concentrated aqueous compositions of alkylpolyglycosides, and applications thereof
09/1997
09/30/1997	US5672203 Set retarded cementing compositions and methods
09/30/1997	CA2057597C Low temperature degradation of galactomannans
09/25/1997	WO1997035095A1 Oil and gas field chemicals
09/25/1997	WO1997034963A1 High performance environmentally friendly drilling fluids
09/25/1997	CA2247334A1 Oil and gas field chemicals
09/24/1997	EP0796387A1 Material and method for lubricating the metal surfaces of an earth-pressure tunnel boring machine
09/24/1997	EP0796384A1 Drilling process and device
09/24/1997	EP0652922B1 Mineral additives for setting and/or controlling the rheological properties and gel structure of aqueous liquids, and the use of such additives
09/23/1997	US5670460 Concentrate containing xylene, hydrocarbon solvent, polysorbate emulsifier, fatty ester of sorbitan, fatty amide detergent
09/23/1997	US5669456 Process and water-base fluid utilizing hydrophobically modified cellulose derivatives as filtrate reducers
09/23/1997	US5669447 Methods for breaking viscosified fluids
09/23/1997	US5669446 Injecting into well bore an aqueous fluid containing aqueous liquid containing potassium ion, gelling agent, crossliker to gelling agent, alkali or alkaline metal hypochlorites and chlorites as breaker and breaker activator as ammonium ions
09/23/1997	US5669444 Injecting aqueous oxidant solution; increased methane production
09/23/1997	CA2101546C Synthetic cover for waste piles
09/18/1997	WO1997034073A1 A water compatible chemical in situ sand consolidation with furan resin
09/16/1997	US5667024 Method of Drilling utilizing bees wings
09/16/1997	US5667012 Method and apparatus for the addition of low-bulk-density fibers to a fluid
09/12/1997	WO1997032946A1 Substantially linear ethylene/alpha-olefin polymers as viscosity index improvers or gelling agents
09/11/1997	DE19609194A1 Oil well drilling and completing fluid
09/10/1997	EP0793686A2 Polymeric composites with crystalline mixed metal hydroxide particles dispersed therein
09/03/1997	EP0792998A1 Method for metal sulfate scale control in harsh oilfield conditions
09/02/1997	US5663123 Polymers for bore holes to stabilize earth in drilling and excavation
09/02/1997	US5663122 Mineral additives for setting and/or controlling the rheological properties and gel structure of aqueous liquid phases and the use of such additives
09/02/1997	US5663121 Method and apparatus for providing a stream of inert gases in underbalanced drilling of a well bore
09/02/1997	US5662168 Process for modifying the water permeability of a subterranean formation
09/01/1997	CA2198841A1 Method for metal sulfate scale control in harsh oilfield conditions
08/1997
08/28/1997	WO1997031379A1 Treatment of radioactive material
08/28/1997	CA2244186A1 Treatment of radioactive material
08/27/1997	CA2198572A1 The use of breaker chemicals in gelled hydrocarbons
08/26/1997	US5661220 Reaction products of olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifiers for crude oil emulsions
08/26/1997	CA1339371C Biocides for protecting industrial materials and water systems
08/20/1997	EP0535074B1 Fluid borehole-conditioning agent based on polycarboxylic acid esters
08/20/1997	CN1157651A Method for inhibiting hydrate formation
08/20/1997	CN1157650A Method for inhibiting hydrate formation
08/19/1997	US5658861 Delayed borate crosslinked fracturing fluid having increased temperature range
08/19/1997	US5658860 Lubricating drill with oil in water emulsion having water phase containing sulfurized alcohol dissolved in water soluble alcohol solvent
08/19/1997	US5658859 Pseudoplastic mixed metal layered hydroxide fluid with fluid loss additive and method of use in penetrating the earth
08/19/1997	US5658653 Modified mixed metal hydroxides capable ob bonding to polymeric matrices
08/19/1997	US5658486 Forming solution of gliadin, glutenin, and hydroxide for spraying
08/19/1997	US5658380 Hydraulic cement, cement hydration retarder, oxidative additive; oil wells
08/19/1997	CA2136395C Controlling ferric ions while acidizing subterranean formations
08/13/1997	EP0789132A1 Process for inhibition or retarding the formation, the growth and/or the agglomeration of hydrates
08/13/1997	EP0695333B1 Removing fines from a spent aqueous well treating fluid
08/12/1997	US5656576 Reducing polyethercyclocpolyol metal adhesion
08/12/1997	US5656177 Oil-in-water emulsions as substitutes for microbicides (biocides) in water carrying systems

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