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)
01/2011
01/12/2011CN101121880B Natural macromolecule modified starch profile control agent for oil field
01/12/2011CN101033392B Expansion type flow gel profile controlling water shutoff agent
01/11/2011US7867953 Methods of using drilling fluids containing biodegradable organophilic clay
01/11/2011US7867951 used to alter fluid rheology and impart both viscous and elastic properties to the treated fluids; well bore treatment fluids
01/11/2011US7866394 Compositions and methods of cementing in subterranean formations using a swelling agent to inhibit the influx of water into a cement slurry
01/11/2011CA2606367C Use of direct epoxy emulsions for wellbore stabilization
01/11/2011CA2594626C Use of a heavy petroleum fraction as a drive fluid in the recovery of hydrocarbons from a subterranean formation
01/11/2011CA2505045C Organofunctional compounds for shale stabilization of the aqueous dispersed phase of non-aqueous based invert emulsion drilling system fluids
01/06/2011WO2011000895A1 Polymeric corrosion inhibitors
01/06/2011WO2011000089A1 Methods of fracturing hydrocarbon reservoirs
01/06/2011WO2010128313A3 Quaternary ammonium corrosion inhibitor
01/06/2011WO2009148829A8 Method for treating hydrocarbon-bearing formations with fluorinated epoxides
01/06/2011US20110003720 Controlling the stability of water in water emulsions
01/06/2011US20110003719 Polymer-containing composition, its preparation and use
01/06/2011US20110000673 Drilling Fluid and Method for Reducing Lost Circulation
01/06/2011US20110000672 Clay Stabilization with Nanoparticles
01/06/2011US20110000400 Well Cement Compositions Comprising Biowaste Ash and Methods of Use
01/06/2011CA2766222A1 Polymeric corrosion inhibitors
01/05/2011EP2270115A1 Methods of using settable compositions in a subterranean formation
01/05/2011EP2268764A1 Use of tenside mixtures for tertiary oil production
01/05/2011EP2268763A1 Lost circulation material formulation and method of use
01/05/2011EP2061856B1 Swelling inhibitors for clays and shales
01/05/2011EP1735523B1 Tagged propping agents and related methods
01/05/2011DE102009030339A1 Additive zur Inhibierung der Gashydratbildung Additive for inhibiting gas hydrate formation
01/05/2011CN101935522A Preparation of long-chain alkyl acyl benzene sulfonic acid sodium salt and application thereof in enhancing oil recovery rate
01/05/2011CN101935521A Application of alcohol amide nonionic surfactant for alkali-free flooding
01/05/2011CN101935520A Novel emulsion organic resin selective plugging agent
01/05/2011CN101935519A Drilling fluid and preparation method thereof
01/05/2011CN101935272A Rare earth type water-base gel crosslinking agent and preparation method thereof
01/05/2011CN101935181A Intermediate temperature retarder in oil well cement
01/05/2011CN101492599B Foaming water discharge agent and its preparation
01/04/2011US7863226 providing settable formulation that comprises magnesium oxide and brine that comprises water and a divalent salt, wherein divalent salt does not contain magnesium, placing settable formulation in subterranean formation, allowing to set to form hardened mass
01/04/2011US7863225 prepared by combining an amide of a carboxylic acid, a polypropylene glycol, an ethoxylated and propoxylated fatty alcohol, and a hydrophobic silica
01/04/2011US7863224 preparing composition comprising a calcium aluminate cement, water, a polyphosphate, a pozzolan, and a set retarding agent, wherein the set retarding agent comprises an alkali halide and a basic phosphate salt, placing the composition in the wellbor, and allowing the composition to set
01/04/2011US7863223 have yield power law characteristics such that they are not prone to movement once emplaced in annulus; minimization of movements in fluids reduces convective heat loss to a minimum; includes hydrocarbon fluid, gelling agent, rheological additive; gelling agent comprises phosphoric, phosphonic acid ester
01/04/2011US7861780 Method of treating subterranean formations with porous particulate materials
01/04/2011CA2671204C Non-toxic, green fracturing fluid compositions, methods of preparation and methods of use
01/04/2011CA2648747C Settable drilling fluids comprising cement kiln dust and methods of using them
01/04/2011CA2623469C Gelled emulsions and methods of using same
01/04/2011CA2621627C Methods of formulating a cement composition
01/04/2011CA2580595C Methods of inhibiting and/or preventing corrosion in oilfield treatment applications
01/04/2011CA2576936C The use of sized barite as a weighting agent for drilling fluids
01/04/2011CA2557413C Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends
01/04/2011CA2479210C Use of dispersion polymers as friction reducers in aqueous fracturing fluids
01/04/2011CA2428781C Stable liquid suspension compositions and method of making and use thereof
01/04/2011CA2406183C Cementing compositions and application of these compositions to cementing oil wells or the like
01/04/2011CA2337065C Zwitterion derivatives and application to aqueous suspension properties
12/2010
12/30/2010US20100331223 Acidic Viscosity Enhancer for Viscoelastic Surfactant Fluids
12/30/2010US20100331222 Process for producing cellulose beads from solutions of cellulose in ionic liquid
12/30/2010US20100331221 Drilling fluid additive containing heated syrup solids
12/30/2010US20100331191 Surfactant compounds
12/30/2010US20100326728 Mineral-based drilling fluid and drilling method
12/30/2010US20100326662 Viscous Oil Recovery Using Emulsions
12/30/2010US20100326660 Use of direct epoxy emulsions for wellbore stabilization
12/30/2010DE102009030411A1 Wasser-in-Öl-Emulsion und Verfahren zu ihrer Herstellung Water-in-oil emulsion and process for their preparation
12/29/2010WO2010150123A2 Method for treatment of a well using high solid content fluid delivery
12/29/2010WO2010150122A1 Method and composition to increase viscosity of crosslinked polymer fluids
12/29/2010WO2010150120A1 Hydrocarbon-based filtercake dissolution fluid
12/29/2010WO2010149954A1 Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer
12/29/2010WO2010149253A1 Additives for inhibiting gas hydrate formation
12/29/2010WO2010149251A1 Water in oil emulsion, method for the production thereof
12/29/2010EP2267269A1 Method for developing oil pools in carbonate reservoirs having a high heterogeneity of permeability stratification
12/29/2010EP2265795A2 Methods of treating a hydrocarbon containing formation
12/29/2010EP2265688A1 Viscoelastic composition with improved stability
12/29/2010EP2265687A2 Method for sealing an annular space in a wellbore
12/29/2010EP2265686A2 Viscosity reducer for water-based muds
12/29/2010CN1729347B Self-diverting pre-flush acid for sandstone and method for processing sandstone stratum
12/29/2010CN101928557A Unblocking agent for polymer gel profile control agent
12/29/2010CN101928556A Five-membered copolymer fluid loss agent and preparation method thereof
12/29/2010CN101928555A Multifunctional drilling fluid additive
12/29/2010CN101928366A Method for preparing viscosity breaking agent for drilling fluid
12/29/2010CN101927139A Self-emulsifier and use thereof in tertiary oil recovery
12/29/2010CN101531889B Oil-based stuck freeing fluid for well drilling
12/29/2010CN101531888B Shale-control agent for drilling fluid and preparation method thereof
12/29/2010CN101508890B Dual-purpose agglutination sand for oil-field development
12/29/2010CN101475775B Preparation of low molecular plant gum
12/29/2010CN101429429B High-strength, high-density porcelain granule support agent and method of producing the same
12/29/2010CN101423752B Lubricant for drilling fluids and preparation method thereof
12/29/2010CN101353570B Heavy crude thermal recovery steamed well slag plugging agent
12/29/2010CN101323778B Metakaolin-slag base geological polymer for oilfield cementing and high temperature retarder thereof
12/29/2010CN101168660B High-density high-strength pressure crack proppant
12/29/2010CN101108963B Modified product of native asphalt bitumen used as drilling fluid anti-sloughing agentand method of manufacturing the same
12/29/2010CA2766617A1 Additives for inhibiting gas hydrate formation
12/29/2010CA2766612A1 Water in oil emulsion, method for the production thereof
12/29/2010CA2765948A1 Method and composition to increase viscosity of crosslinked polymer fluids
12/29/2010CA2765366A1 Method for treatment of a well using high solid content fluid delivery
12/29/2010CA2765123A1 Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound forming a chelating agent to uncross-link the polymer
12/28/2010US7858564 Well fluid comprising a fluorinated liquid phase
12/28/2010US7858563 using a hydrocarbon-responsive fluid thickened with an oligomeric surfactant consisting of from 2 to 8-linked surfactant monomer subunits; controlling viscoelasticity
12/28/2010US7858562 Powder composition
12/28/2010US7858561 Degradable polymers for wellbore fluids and processes
12/28/2010US7857057 Method of fracturing hydrocarbon-bearing formation with coated porous polyolefin particulate
12/28/2010US7857055 treatment fluid for treating a subterranean formation formed from an aqueous solution of a polysaccharide (guar or its derivative), a polyacrylamide, a crosslinking agent
12/28/2010US7857051 Internal breaker for oilfield treatments
12/26/2010CA2708690A1 Process for producing cellulose beads from solutions of cellulose in ionic liquid
12/23/2010WO2010148307A1 Using dispersion polymers with nonionic characteristics and formulations to reduce friction
12/23/2010WO2010148226A2 Application of degradable fibers in invert emulsion fluids for fluid loss control
12/23/2010WO2010148222A2 Application of degradable fibers in invert emulsion fluids for kill pills
12/23/2010WO2010148204A2 Particle stabilized emulsions for extraction of hydrocarbons from oil sands and oil shale
12/23/2010WO2010147650A2 Treatment of particles for improved performance as proppants