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)
12/1999
12/28/1999US6006835 Methods for sealing subterranean zones using foamed resin
12/28/1999US6006831 Electrical well logging fluid and method of using same
12/23/1999WO1999066006A1 Borehole fluid containing a lubricating composition - method for verifying the lubrification of a borehole fluid - application with respect to fluids with a high ph
12/22/1999EP0817818B1 Use of sized salts as bridging agent for oil based fluids
12/21/1999US6004908 Activator mixture of iron sulfate, isopropanol, 2-dibutylaminoethanol, and phosphate surfactant; enhanced oil recovery
12/21/1999US6003528 Thermo-chemical dewaxing a large dimension line or conduit using a nitrogen generation system/emulsion
12/16/1999WO1999064718A1 A method for inhibiting hydrate formation
12/16/1999WO1999064717A1 Utilization of vinyl formamide homopolymers or copolymers for inhibiting gas hydrates
12/16/1999WO1999064716A1 Method for preventing deposits in oil extraction
12/09/1999WO1999063199A1 Encapsulated breaker slurry compositions and methods of use
12/09/1999WO1999051850A3 Underground cable and pipelaying
12/09/1999DE19825330A1 Verwendung von Homo- oder Copolymerisaten des Vinylformamid zur Inhibierung von Gashydraten Use of homo- or copolymers of vinylformamide for inhibiting gas hydrates
12/08/1999EP0962626A2 Treating subterranean formations
12/08/1999CN1238023A On-line thermo-chemical process for dewaxing of oil export pipelines
12/07/1999US5996694 Methods and compositions for preventing high density well completion fluid loss
12/07/1999US5996693 Methods and compositions for cementing pipe in well bores
12/07/1999US5996692 Surfactant composition and method for cleaning wellbore and oil field surfaces using the surfactant composition
12/02/1999WO1999061747A1 Encapsulated breakers, compositions and methods of use
12/01/1999EP0960259A1 Aphron-containing well drilling and servicing fluids
11/1999
11/30/1999US5994083 Collect serum samples from infected pateints with antibodies and a healthy individual, identify antibodies which bind antigens specific to the disease from phage library; select phages that display antigen recognized by antibody; vaccines
11/30/1999US5993660 Method of remediation of contaminants in porous media through minimization of bouyancy effects
11/25/1999WO1999059958A1 Biodegradable corrosion inhibitors
11/25/1999CA2332836A1 Biodegradable corrosion inhibitors
11/24/1999EP0958256A1 Method and cement-drilling fluid cement composition for cementing a wellbore
11/24/1999CN1046685C Method for control of biofouling
11/23/1999US5990053 For viscosifying fracturing fluids; an aluminum salt of a phosphate ester made by reacting phosphorus pentoxide with a mixture of organic alchols and hydroxy functional polyolefins, then forming a salt with basic aluminum
11/23/1999US5990052 Gaseous phase, proppant and aqueous phase comprising a hydrophobically modified guar where the hydrophobic groups consist of a c1-4 alkyl and various hydroxy ethers of given formula; and a surfactant; leaves no residues
11/23/1999US5990050 Useful in the drilling, completing and working over of subterranean wells, such as oil wells; continuous phase propylene glycol n-butyl ether(s) having viscosity less than 10 centipoise at 25 degrees c and stabilizing emulsifier
11/23/1999US5989336 Cement composition
11/23/1999US5988279 Hardening mixture of cement, water and polymer additive
11/17/1999EP0957149A2 Invert emulsion well drilling and servicing fluids
11/17/1999EP0956428A1 Method for stabilizing the gas flow in water-bearing natural gas deposits or reservoirs
11/17/1999EP0956427A1 On-line, thermo-chemical process for the dewaxing of oil export pipelines
11/17/1999EP0956379A2 Corrosion inhibition
11/17/1999CN1235628A Enhanced multicomponent mixtures for soil decomposition
11/17/1999CN1235627A Method for facilitated waste disposal of working substances based on W/O invert emulsions
11/17/1999CN1235626A Well servicing fluids
11/16/1999US5985801 For use in thickening aqueous mediums, particularly completion and workover fluids used in the oil and gas drilling business
11/16/1999US5985800 Invert emulsion fluids suitable for drilling
11/11/1999WO1999057217A1 Environmentally preferred fluids and fluid blends
11/11/1999CA2331617A1 Environmentally preferred fluids and fluid blends
11/10/1999EP0954677A1 Method of increasing the amount of hydrocarbons from an underground reservoir
11/09/1999US5981447 Dissolving a water soluble polysaccharide in aqueous solution, crossliking with a crosslinker selected from zirconium, aluminium and antimony compounds, drying, granulating, mixing fluid control agent for hydration
11/09/1999US5981446 Consists of a particulate hydratable polysaccharide capable of continuously mixing to form a viscous fracturing fluid, an encapsulated particulate borate crosslinking agent, a particulate slowly releasing base to adjust the ph value
11/09/1999US5980776 Phosphonic acid polymers
11/09/1999US5980628 Curable gypsum-containing composition and method for stabilization of unconsolidated core samples
11/09/1999US5979557 Methods for limiting the inflow of formation water and for stimulating subterranean formations
11/09/1999US5979556 Slow acidizing of geological formations
11/09/1999US5979555 Surfactants for hydraulic fractoring compositions
11/04/1999WO1999055641A1 Method for consolidating and/or passivating, by chemical process, a porous mineral structure internal zone containing an alkaline-earth metal carbonate
11/03/1999EP0896650A4 Scale inhibition by squeeze application of a phosphonomethylated polyamine inhibitor
11/03/1999EP0770169B1 Hydrate inhibition
11/02/1999US5977032 Acidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant composition
11/02/1999US5977031 Ester based invert emulsion drilling fluids and muds having negative alkalinity
11/02/1999US5977030 Method of increasing the LSRV of aqueous fluids and oil-in-water emulsions prepared thereby
11/02/1999US5976416 Corrosion inhibited organic acid compositions and methods
11/02/1999US5975220 Mud suspension control system
11/02/1999US5975206 Acid gels for fracturing subterranean formations
11/02/1999CA2148396C Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems
10/1999
10/28/1999WO1999054592A1 Well treatment for water restriction
10/27/1999EP0951612A1 Method for drying out rock containing immobile formation water within the encroachment area of natural gas deposits and gas reservoirs
10/27/1999EP0951519A1 Process for the facilitated waste disposal of working substances based on water-in-oil invert emulsions
10/26/1999US5972868 Method for controlling alkaline earth and transition metal scaling with 2-hydroxyethyl iminodiacetic acid
10/26/1999US5972850 Metal ion crosslinked fracturing fluid and method
10/26/1999US5972849 Process for controlling iron
10/26/1999US5972848 Method for inhibiting reactive argillaceous formations and use thereof in a drilling fluid
10/26/1999US5972103 Universal well cement additives and methods
10/21/1999WO1999052991A1 Methods and compositions for delaying the crosslinking of crosslinkable polysaccharide-based lost circulation materials
10/21/1999WO1999052990A1 Drilling fluids
10/21/1999WO1999052623A1 Dispersions containing homopolymers or copolymers of hydroxy carboxylic acids as a rheological additive
10/21/1999CA2328235A1 Methods and compositions for delaying the crosslinking of crosslinkable polysaccharide-based lost circulation materials
10/21/1999CA2327422A1 Dispersions containing homopolymers or copolymers of hydroxy carboxylic acids as a rheological additive
10/20/1999EP0950034A1 Slag for cementing a well, in particular an oil well
10/20/1999CN1045788C Wellbore fluid and its use in drilling
10/20/1999CN1045787C Water base drilling fluid contg. water soluble alkyl gluocoside and its use
10/19/1999US5969006 Remedial well bore sealing methods
10/19/1999US5968879 Polymeric well completion and remedial compositions and methods
10/19/1999US5968255 Slurrying iron chloride, dispersants organic acids and hydratable polymer
10/19/1999US5967233 Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions
10/19/1999CA2189616C Method for the thermo-chemical dewaxing of large dimension lines
10/14/1999WO1999051855A1 Method for improving the delivery of crude oil from a petroliferous bed
10/14/1999WO1999051854A1 A foam drive method
10/14/1999WO1999051850A2 Underground cable and pipelaying
10/14/1999WO1999051820A1 Construction of a fluid impermeable subterranean barrier wall
10/14/1999WO1999051701A1 New and improved drilling fluids and additives therefor
10/14/1999DE19816308A1 Rheologisches Additiv Rheological Additive
10/13/1999EP0949311A1 Drilling fluids
10/13/1999EP0948704A1 Method for improved stimulation treatment
10/13/1999EP0948577A1 Enhanced multicomponent mixtures for soil decomposition
10/13/1999EP0948576A1 Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration
10/13/1999EP0874878A4 High density viscosified aqueous compositions
10/13/1999EP0697059B1 Hydrocarbon gels useful in formation fracturing
10/12/1999US5965783 Process for isomerizing olefins
10/12/1999US5964983 Containing 80 percent of primary walls and where in primary walls are charged or contain uronic acids; as thickeners, for low calorie food products, in paints, paper, textiles, agriculture, cosmetics, pharmaceutical excipients
10/12/1999US5964692 Functional fluids and liquid cleaning compositions and suspending media
10/12/1999US5964303 Process and a device for establishing drilling holes
10/12/1999US5964295 Methods and compositions for testing subterranean formations
10/12/1999US5964293 Well completion methods using rubber latex compositions in subterranean formations containing salt zones
10/12/1999US5964292 Grouting application of the annulas seal system for well casings
10/12/1999US5964291 Fracturing using high pressure fluid and proppant particles
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