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)
11/2006
11/16/2006US20060258547 Well completion; sealing subterranean zones; treating fluids introduced into a subterranean zone penetrated by a wellbore, particularly fluids introduced as pills; surfactants such as cetyltrimethylammonium chloride, cocoalkyltrimethylammonium chloride, water and oil based carrier fluids, zeolites
11/16/2006US20060258546 Structured composite compositions for treatment of subterranean wells
11/16/2006US20060258545 Well completion spacer fluids containing fibers
11/16/2006US20060258544 Treating subterranean formations such as well bores with aqueous fluids of biodegradable polymeric surfactants with are block polymers e.g. polyethylene glycol-polylactic acid copolymer; environmental regulations
11/16/2006US20060258543 Treating subterranean formations such as well bores with biodegradable polymeric surfactants with are block polymers e.g. polyethylene glycol-polylactic acid copolymer; degradable surfactant is not a phosphate ester, and has a HLB value to form an emulsion; environmental regulations
11/16/2006US20060258542 Nonnatural galactomannans and methods of use
11/16/2006US20060258541 Fracturing subterranean oil well using a gell which includes a microemulsion of viscosity reducing agent of unsaturated fatty acid, solubilizer, desorber and water wetting agent; improved clean-up, increased rate and/ or amount of surfactant returning, reduced plating out, keeping minerals wet (more)
11/16/2006US20060254826 Drilling method
11/16/2006US20060254772 High molecular weight polyamine salts as clay stabilizing agents
11/16/2006US20060254771 Treating a well by injecting a fluid loss pill comprising an aqueous solution; and a viscoelastic surfactant; an increase of viscosity at near-static reservoir conditions
11/16/2006US20060254466 Dual function cement additive
11/16/2006DE102005010564A1 Use of water-soluble alkane sulfonic acid to increase the permeability of underground carbonates and/or carbonates containing petroleum and/or to form natural gas-prominent rock
11/15/2006EP1721952A2 Microencapsulated particulate metal material, method for producing the same, and aqueous dispersion and ink jet ink using the same
11/15/2006EP1721059A1 Suppressing fluid communication to or from a wellbore
11/15/2006EP1720954A1 Drilling fluids with improved shale inhibition and methods of drilling in subterranean formations
11/15/2006EP1446459B1 Well drilling method and drilling fluid
11/15/2006CN1863984A Gravel packing method
11/15/2006CN1863888A Surfactant composition
11/15/2006CN1861980A Injection pretreatment method for oil water well
11/15/2006CN1861736A Solid lubricant for well drilling liquid and preparation process thereof
11/15/2006CN1861654A Water soluble amphoteric ion copolymer and preparation process thereof
11/15/2006CN1284842C Oil and water well plugging agent and its producing process
11/14/2006US7135440 Method for controlled placement of oilfield chemicals and composition useful for practicing same
11/14/2006US7135439 Free-flowing products comprising potassium formate
11/14/2006CA2348468C Mercaptoalcohol corrosion inhibitors
11/14/2006CA2300683C Coiled tubing drilling with supercritical carbon dioxide
11/14/2006CA2148116C A biodegradable wellbore fluid comprising n-alk-1-ene
11/09/2006WO2006117535A1 Method for controlled gelation of silicates
11/09/2006WO2006117524A1 Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations
11/09/2006WO2006117522A1 Set-delayed cement compositions comprising hydrated lime and silica and methods of cementing in subterranean formations
11/09/2006WO2006117517A2 Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods
11/09/2006WO2006117510A1 Methods and compositions for enhancing hydrocarbon production
11/09/2006WO2006116868A1 Method for making transportable aqueous slurries by particulate hydrophobicization
11/09/2006US20060252653 Alcohol compatible copolymer
11/09/2006US20060252652 Oil base fluids containing hydrophilic tannins
11/08/2006EP1718718A1 Soap control agent
11/08/2006EP1718713A2 Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids
11/08/2006CN1858148A Oil well surrounding stratum hyphobic lipophilic treating additive and its preparing method
11/08/2006CN1858147A Oil well sand washing plugging agent and plugging method
11/08/2006CN1858146A Anti-pollution high efficiency isolation liquid and preparing method
11/08/2006CN1283893C Electrical well heating system and method
11/08/2006CN1283742C Multi-component kits and combinations, use thereof and plastic cements obtd. therefrom
11/08/2006CN1283678C Process for synthesizing specific carboxylic styrene butadiene latex for well cementation of oil-gas field
11/07/2006US7132389 Acid-coated sand for gravel pack and filter cake clean-up
11/07/2006US7131495 adding chlorates or stable chlorine dioxide and water into one tank; in another tank adding acidic substances, which can be dissolved in water and produce hydrogen ion in an aqueous solution; providing a high pressure injection pump
11/07/2006US7131493 Methods of using sealants in multilateral junctions
11/07/2006US7131491 Aqueous-based tackifier fluids and methods of use
11/07/2006CA2172582C Enhanced corrosion protection by use of friction reducers in conjunction with corrosion inhibitors
11/07/2006CA2166834C Water based process and fluid using hydrophobicly modified guars as fluid-loss addition
11/02/2006WO2006114623A2 Method of well treatment and construction
11/02/2006WO2006114582A1 Methods of using resins in subterranean formations
11/02/2006WO2006113982A1 Flue gas injection for heavy oil recovery
11/02/2006WO2005083026A3 Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids
11/02/2006US20060247136 aqueous base fluid containing a crosslinked carboxylic acid polymer as a gelling agent: acrylamide terpolymer with acrylamidopropanesulfonic acid and itaconic acid, 1-butene-2,3,4-tricarboxylic acid or maleic acid; may be foamed; fracturing a subterranean formations
11/02/2006US20060247135 Subterranean well treatment system comprising an acidic treatment fluid that comprises an aqueous base fluid, an acid, and a gelling agent wherein the pH of the acidic treatment fluid is less than about 4; higher viscosity than a fluid that comprises xanthan as gelling agent
11/02/2006EP1717288A2 Amine-based gas hydrate inhibitors
11/02/2006EP1716217A1 High performance water-based drilling mud and method of use
11/02/2006CA2820375A1 A method for producing a carbon disulfide formulation
11/02/2006CA2545563A1 Method for making particulate slurries and particulate slurry compositions
11/01/2006CN1856636A Solid-liquid separation of oil-based muds
10/2006
10/31/2006US7128158 Lightweight composite particulates and methods of using such particulates in subterranean applications
10/31/2006US7128148 Well treatment fluid and methods for blocking permeability of a subterranean zone
10/31/2006CA2308372C Formation treatment method using deformable particles
10/31/2006CA2261982C Method of inhibiting gas hydrate formation
10/28/2006CA2506117A1 Water based drilling fluid for shallow wells
10/26/2006WO2006111708A1 Compositions and methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation
10/26/2006WO2006111703A2 Compositions and methods of using a polymeric precipitate to reduce the loss of fluid to a subterranean formation
10/26/2006WO2006055549A3 Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance
10/26/2006US20060240995 Methods of using resins in subterranean formations
10/26/2006US20060240994 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
10/26/2006US20060240993 Aqueous phase containing an oil soluble unsubstituted styrene-acrylate copolymer or an unsubstituted styrene-butadiene copolymer in the form of a gel as a fluid loss reducer; pH controller; viscosifier; a salt; emulsifier; weighting agent; optional starch, cellulose or carboxymethyl cellulose
10/26/2006US20060237372 Separation of drilling mud emulsions
10/26/2006CA2544016A1 Amine-based gas hydrate inhibitors
10/25/2006EP1714003A1 Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
10/25/2006EP1714002A1 Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations
10/25/2006EP1713568A1 Use of polyaminothylenephosphonates as dispersing agents
10/25/2006EP1406712A4 Suspensions of particles in non-aqueous solvents
10/25/2006CN1852964A Fluid loss control and sealing agent for drilling depleted sand formations
10/25/2006CN1850939A Water-soluble drag-reducing agent for oil well
10/25/2006CN1850938A Emulsion polymer for drilling fluid
10/25/2006CN1850795A Bialkylbiphenyl sodium disulfonate, and its preparing method
10/25/2006CN1281581C Alkyl benzene sulfonate, its compound, alkyl benzene sulfonate surfactant and its application
10/24/2006US7125826 Emulsions in drilling, hydraulic fracturing, gravel packing and completion and then inverting the emulsion to a water external- oil internal emulsion are provided. The methods basically comprise the steps of contacting the oil
10/24/2006US7125825 Viscoelastic surfactants for use in aqueous systems to generate thickened fluids; hydraulic fracturing in oil fields; gravel packing, drilling, well completion; rheology control
10/24/2006US7124817 Method of treating a hydrocarbon bearing formation
10/24/2006CA2508339C Drilling fluid and methods of use thereof
10/24/2006CA2219212C Carboxyalkyl substituted polygalactomannan fracturing fluids
10/24/2006CA2143926C Waterborne fluid and process using hydrophobically modified cellulosic derivatives as filtrate reducing agents
10/22/2006CA2507968A1 Separation of drilling mud emulsions
10/19/2006WO2006109225A1 Low damage treatment fluids and methods of using the same
10/19/2006WO2006109038A1 Methods and compositions for delaying the release of treatment chemicals
10/19/2006WO2006109016A1 A microemulsion cleaning composition
10/19/2006US20060234877 Systems, methods, and catalysts for producing a crude product
10/19/2006US20060234876 in presence of a pore size catalyst; crude product is a liquid mixture at 25 degrees C. and 0.101 MPa; hydrotreating; specific micro-carbon-residue in the product; vacuum gas oil product; binder of silica, alumina, silica/alumina, titanium oxide, zirconium oxide; producing a transportation fuel
10/19/2006US20060234875 Wellbore treatment kits for forming a polymeric precipitate to reduce the loss of fluid to a subterranean formation
10/19/2006US20060234874 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
10/19/2006US20060234873 Gallic acid, gallow tannins, esters of gallic acid, and/or salts of gallic acid for well bores; starches, schleroglucans, guar gums, polyacrylates, and/or xanthan gum viscosifying agent; and weighting agent; oil and gas drilling and recovery from subterranean formations
10/19/2006US20060234872 Low damage treatment fluids and methods of using the same
10/19/2006US20060234871 Containing a leak off prevention material, water and optionally a fluid loss control additive
10/19/2006US20060234870 Methods and compositions for delaying the release of treatment chemicals