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)
11/2012
11/21/2012CN102146140B Method for preparing temperature-resistance modified water soluble cellulose ether
11/21/2012CN102070749B Method for preparing wax-containing crude oil pour point depressant
11/21/2012CN102050914B Ultra-high molecular weight sulfonic acid type acrylamide and preparation method thereof
11/21/2012CN102050913B Temperature and salt resistant grafted polyacrylamide and preparation method thereof
11/21/2012CN101935522B Preparation of long-chain alkyl acyl benzene sulfonic acid sodium salt and application thereof in enhancing oil recovery rate
11/21/2012CN101735790B Preparation method of compound ion head double-tail surface active agent for oil displacement
11/21/2012CN101696114B Method for preparing light fracturing propping agent for multi-hole oil and gas well
11/21/2012CN101343339B Salt (hot) thickening water-soluble polymer
11/20/2012US8313667 Environmentally benign anti-icing or deicing fluids employing triglyceride processing by-products
11/15/2012WO2012154521A2 Novel quaternary foamers for downhole injection
11/15/2012WO2012154486A2 Method of well treatment using synthetic polymers
11/15/2012WO2012154473A1 Curable composition for use as lost circulation material
11/15/2012WO2012154437A1 Non-aqueous drilling additive useful to produce a flat temperature-rheology profile
11/15/2012WO2012154378A1 Low dosage polymeric naphthenate inhibitors
11/15/2012WO2012154332A2 Stable nanoparticles for highly saline conditions
11/15/2012WO2012153091A1 Methods and compositions for clay control
11/15/2012WO2012152889A1 Method of carrying out a wellbore operation
11/15/2012US20120289439 Process for the manufacture of sulphide compounds
11/15/2012US20120289438 Drilling fluids comprising hydroxylated polymers
11/15/2012US20120289437 Non-aqueous drilling additive useful to produce a flat temperature-rheology profile
11/15/2012US20120289436 Methods for controlling depolymerization of polymer compositions
11/15/2012US20120289435 Drilling fluid additive with low freezing point
11/15/2012US20120285745 Drilling fluids
11/15/2012US20120285693 Controlled release biocides in oilfield applications
11/15/2012US20120285685 Method of Using Asparaginase as a Polyacrylamide Enzyme Breaker
11/15/2012CA2835036A1 Methods and compositions for clay control
11/15/2012CA2834923A1 Curable composition for use as lost circulation material
11/15/2012CA2830996A1 Non-aqueous drilling additive useful to produce a flat temperature-rheology profile
11/14/2012EP2521700A1 Cement compositions comprising sub-micron alumina and associated methods
11/14/2012CN202530030U Flow-back fracturing fluid recycling system of natural gas well
11/14/2012CN1977027B Process for disruption of filter cakes
11/14/2012CN102782081A Method of fracturing subterranean formations with crosslinked fluid
11/14/2012CN102782080A Use of CSH suspensions in cementing wells
11/14/2012CN102775980A Acidizing block remover suitable for complex lithologic reservoir
11/14/2012CN102775979A Efficient cross-linking agent for reducing working concentration of guar gum and preparation method of efficient cross-linking agent
11/14/2012CN102775978A Treating agent for inhibiting generation of hydrothion in oil reservoir in steam flooding injection well and application thereof
11/14/2012CN102775977A Treating agent for inhibiting generation of hydrothion in steam flooding injection well, displacing oil and reducing viscosity and application thereof
11/14/2012CN102775976A Non-alkali composite flooding compound based on straight-chain fatty alcohol ether carboxylic betaine
11/14/2012CN102775975A Blocking remover for reservoir of oil well
11/14/2012CN102775974A Active mixed acid plugging removal solution applicable to low permeability reservoir
11/14/2012CN102775973A Scale removing agent applicable to alkaline-surfactant-polymer flooding and scale removing and unfreezing process
11/14/2012CN102775972A Liquid high-temperature resistant declining agent for well cementation and preparation method thereof
11/14/2012CN102775971A High-temperature powder retarder in oil well cement
11/14/2012CN102775970A Weak-gel synthetic drilling fluid and preparation method thereof
11/14/2012CN102775969A Multifunctional filtrate reducer and preparation method thereof
11/14/2012CN102775968A Heat-resistant and salt-tolerant filtrate loss reducer for drilling fluid and preparation method thereof
11/14/2012CN102775751A Plastic bead as well as preparation method and applications thereof
11/14/2012CN102775711A Oil-displacing agent composition and preparation method thereof
11/14/2012CN102775710A Oil-displacing agent composition and preparation method thereof
11/14/2012CN102775615A Method for preparing polystyrene plastic small balls and product prepared from polystyrene plastic small balls as well as application of polystyrene plastic small balls
11/14/2012CN102775552A Random copolymer, its preparation method and application
11/14/2012CN102775551A Random copolymer, its preparation method and application
11/14/2012CN102775324A Polymerisable monomer, its preparation method and application
11/14/2012CN102775323A Polymerisable monomer, its preparation method and application
11/14/2012CN102773942A Treatment method for modified starch
11/14/2012CN102321220B Star-type polyacrylamide polymer
11/14/2012CN102276822B Alkylphenol polyoxyethylene ether hydroxyl sulfonate type betaine and preparation method thereof
11/14/2012CN101974319B Double-fluid rapid hardening slurry for roadway grouting and mollisol compaction grouting
11/14/2012CN101935181B Intermediate temperature retarder in oil well cement
11/14/2012CN101899291B Annular chemical packer material for water plugging of horizontal well
11/14/2012CN101851087B Method for preparing ceramsite petroleum propping agent
11/14/2012CN101838524B Oil soluble jam releasing agent for drilling fluid
11/14/2012CN101818052B Temporary plugging agent for drilling fluid
11/14/2012CN101787270B Low-density ceramic proppant and preparation method thereof
11/14/2012CN101699025B Method for regulating and controlling microbial enhanced oil recovery
11/14/2012CN101665685B Oil-displacing agent for enhancing crude oil recovery efficiency in tertiary recovery
11/14/2012CN101649194B Compound multivalent metallic ion crosslinking agent and production method and use method thereof
11/14/2012CN101463714B Foam cyclic utilization method used for under balance drilling
11/14/2012CN101279984B Alkyl phenol sulfonic polyoxyethylene ether phosphate salt and preparation thereof
11/13/2012US8309498 High temperature fracturing fluids and methods
11/13/2012US8309497 High performance drilling fluids with submicron-size particles as the weighting agent
11/13/2012US8307901 Methods of fracturing subterranean formations using sulfonated synthetic gelling agent polymers
11/13/2012US8307899 Methods of plugging and abandoning a well using compositions comprising cement kiln dust and pumicite
11/13/2012CA2688202C Viscoelastic fluids containing hydroxyethyl cellulose
11/08/2012WO2012151533A1 Methods and compositions using hydrocarbon- based crosslinking fluids with non- detectable btex levels
11/08/2012WO2012151524A2 Lignin production from lignocellulosic biomass
11/08/2012WO2012151260A1 Coated and cured proppants
11/08/2012WO2012151109A1 Resin-coated proppant and methods of use
11/08/2012WO2012151091A1 A proppant
11/08/2012WO2012150438A1 Surfactant additives used to retain producibility while drilling
11/08/2012WO2012150435A1 Environmentally friendly low temperature breaker systems and related methods
11/08/2012WO2012150431A1 Thermally-activated, high-temperature cement suspending agent
11/08/2012WO2012150428A1 Particulate materials coated with a relative permeability modifier and methods for treating subterranean formations using treatment fluids containing the same
11/08/2012WO2012150262A1 Novel shear-stable polymer systems, the production thereof, and the use thereof as thickeners
11/08/2012WO2012106623A3 Method of corrosion mitigation using nanoparticle additives
11/08/2012US20120283155 Controlling Coal Fines in Coal Bed Operations
11/08/2012US20120283154 Saponified Fatty Acids as Breakers for Viscoelastic Surfactant-Gelled Fluids
11/08/2012US20120283153 Coated and cured proppants
11/08/2012US20120283152 Water-based fluid loss additive containing an amphiphilic dispersant for use in a well
11/08/2012US20120283151 Biodegradable lubricating composition and use thereof in a drilling fluid, in particular for very deep reservoirs
11/08/2012US20120283150 Polymeric Additives for Enhancement of Treatment Fluids Comprising Viscoelastic Surfactants and Methods of Use
11/08/2012US20120283149 Compositions and Methods for Treatment of Well Bore Tar
11/08/2012US20120283148 Methods and Compositions for Hydrocarbon-Based Crosslinking Additives with Non-Detectable BTEX Levels
11/08/2012US20120283147 Low dosage polymeric naphthenate inhibitors
11/08/2012US20120282239 Novel mannanase variants
11/08/2012US20120279712 Magnetic Composite Particles
11/08/2012US20120279708 Salt of weak bronsted base and bronsted acid as gelation retarder fr crosslinkable polymer compositions
11/08/2012US20120279707 Thermally-Activated, High-Temperature Cement Suspending Agent
11/08/2012US20120279703 Coated and cured proppants
11/08/2012CA2842831A1 Methods and compositions for hydrocarbon-based crosslinking additives with non-detectable btex levels
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