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)
12/2012
12/19/2012CN101787265B Non-fluorescence lubricant for water-base drilling fluid
12/19/2012CN101717627B Low-tension foaming agent for improving crude oil extracting rate of high-salinity oil reservoir and preparation method thereof
12/18/2012US8334323 Alkylene oxide-capped secondary alcohol alkoxylates useful as surfactants
12/18/2012US8334240 Compositions and methods for inhibiting the agglomeration of hydrates in a process
12/18/2012US8333242 Thermothickener polymer and surfactant composition and methods of employing the composition
12/18/2012CA2690690C A process and system for creating enhanced cavitation
12/18/2012CA2688987C System, method, and apparatus for post-fracture treatment
12/18/2012CA2556113C Improved drilling fluids
12/13/2012WO2012170835A1 Modified nonionic surfactant formulations for enhanced oil recovery
12/13/2012WO2012170529A1 Methods to improve stability of high solid content fluid
12/13/2012WO2012127230A3 Invert drilling fluids
12/13/2012US20120316090 Environmentally friendly dispersion system used in the preparation of inverse emulsion polymers
12/13/2012US20120316089 Methods to Characterize Fracture Plugging Efficiency for Drilling Fluids
12/13/2012US20120316088 Method to Characterize Fracture Plugging Efficiency for Drilling Fluids
12/13/2012US20120312533 Additives for improving hydrocarbon recovery
12/13/2012US20120312532 Additives for improving hydrocarbon recovery
12/13/2012CA2838828A1 Modified nonionic surfactant formulations for enhanced oil recovery
12/12/2012CN102822446A Method and system for predicting the effect of microbes injected into an oil-bearing reservoir
12/12/2012CN102822312A Styrylphenol alkoxylate sulfate as new surfactant composition for enhanced oil recovery applications
12/12/2012CN102822311A Mechanical device for dispersing biomass populations
12/12/2012CN102817602A On-line profile control method and device for polymer flooding oil field
12/12/2012CN102817601A Method and device for performing on-line profile control on polymer driving oil field by applying crosslinking agent
12/12/2012CN102816562A Preparation method of densifier for diverting acid
12/12/2012CN102816561A Viscosity stabilizer for ASP flooding
12/12/2012CN102816560A High-temperature annular protection fluid and preparation method thereof
12/12/2012CN102816559A Chemical blocking remover for polymer flooding injection well
12/12/2012CN102816558A Plugging agent for deep profile control and water plugging and preparation method thereof
12/12/2012CN102816557A Environment-friendly drilling fluid (EFD)
12/12/2012CN102816556A Oil-base drilling fluid wetting agent and preparation method thereof
12/12/2012CN102816279A Gel manufacturing method
12/12/2012CN102816277A Preparation method of polycarboxylic acid polymer for acidification
12/12/2012CN102816276A Synthesis method of organosilicon drilling fluid water loss reducing agent
12/12/2012CN102816252A Hydroxypropyl guar gum derivative manufacturing method
12/12/2012CN102409017B Bacillus subfilis strain, and culture method and application thereof
12/12/2012CN102167970B Low-density water bonding well control fluid
12/12/2012CN102146281B Oil-soluble paraffin-removal viscosity breaker
12/12/2012CN102108294B Preparation method of organic titanium cross-linking agent for polyhydroxy alcohol fracturing fluid
12/12/2012CN102102014B Carboxymethyl guar gum acid fracturing fluid
12/12/2012CN101948682B Oil well anti-eccentric wearing, corrosion-inhibiting and scale-removing agent with reversed phase accumulation
12/12/2012CN101921583B Viscosity breaking agent for oil well produced liquid containing polymer or gel
12/12/2012CN101892036B Process for preparing drilling fluid for preventing polycrystalline diamond compact (PDC) bit balling
12/12/2012CN101880630B Method for increasing oil recovery ratio by utilizing symbiotic reproduction and complex metabolism and microbial preparation
12/12/2012CN101798502B Antisludging agent for preventing deposition of Sr/Ba scale
12/12/2012CN101781553B Active fracturing reagent for softening coal rock
12/12/2012CN101735421B Method for preparing phenolic resin pre-condensation polymer cross-linking agent
12/12/2012CN101724389B Crosslinked acid sand fracturing acid liquor
12/12/2012CN101724387B Polyhydroxy-alcohol fracturing fluid
12/12/2012CN101724383B Drilling fluid plugging agent while drilling
12/12/2012CN101712865B Viscoelastic weak gel profile control agent
12/12/2012CN101712864B Multi-hydrogen acid injection increasing agent used in sandstone oilfields
12/12/2012CN101659861B Method for preparing petroleum sulfonate oil displacement agent
12/12/2012CN101429428B Process for producing solid-phase chemical cleanser for drilling fluid
12/12/2012CN101429427B Process for preparing drilling fluid finishing agent of amphoteric ion sulphonate polymer
12/12/2012CN101353571B Oil and water well slag plugging agent
12/11/2012US8329965 Method and system for preventing clathrate hydrate blockage formation in flow lines by enhancing water cut
12/11/2012US8329622 Alcohol compatible copolymer
12/11/2012US8329621 Degradable particulates and associated methods
12/11/2012US8329620 Compositions and methods for inhibiting the agglomeration of hydrates
12/11/2012US8327939 Settable compositions comprising cement kiln dust and rice husk ash and methods of use
12/06/2012WO2012166372A1 Methods to modify drilling fluids to improve lost circulation control
12/06/2012WO2012166371A1 Methods to characterize fracture plugging efficiency for drilling fluids
12/06/2012WO2012166350A1 A drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition
12/06/2012WO2012166245A1 Use of methylhydroxyethyl cellulose as cement additive
12/06/2012WO2012166234A1 High temperature crosslinked polysulfones used for downhole devices
12/06/2012WO2012165966A1 Cement composition based on calcium aluminate cement
12/06/2012WO2012164285A1 Method for microbial control of injection liquid flow in a hydrocarbon reservoir
12/06/2012WO2012163852A1 Composition and method for enhanced hydrocarbon recovery
12/06/2012WO2012125412A4 Proppant particles formed from slurry droplets and method of use
12/06/2012US20120309653 Method of Fluid Slug Consolidation within a Fluid System in Downhole Applications
12/06/2012US20120309070 Generation of hydrogen from hydrocarbon bearing materials
12/06/2012US20120305250 Non-invasive cement spacer fluid compositions, spacer fluid products, methods of well operation and well apparatus
12/06/2012US20120305246 Shear-activated viscoelastic surfactant fluid and method
12/06/2012CA2836624A1 Methods to modify drilling fluids to improve lost circulation control
12/06/2012CA2836621A1 Methods to characterize fracture plugging efficiency for drilling fluids
12/06/2012CA2836390A1 Method for microbial control of injection liquid flow in a hydrocarbon reservoir
12/06/2012CA2835957A1 Composition and method for enhanced hydrocarbon recovery
12/06/2012CA2834184A1 Cement composition based on calcium aluminate cement
12/06/2012CA2832602A1 Use of methylhydroxyethyl cellulose as cement additive
12/06/2012CA2831834A1 A drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition
12/05/2012EP2529079A1 Self-toughened high-strengh proppant and methods of making same
12/05/2012EP2528986A1 Styrylphenol alkoxylate sulfate as a new surfactant composition for enhanced oil recovery applications
12/05/2012EP2528985A1 Agent and composition for oilfield applications
12/05/2012EP2528984A1 Water-soluble polymers for oil recovery
12/05/2012CN102812205A Method and materials for proppant fracturing with telescoping flow conduit technology
12/05/2012CN102807852A Method for manufacturing downhole fracturing proppant by oil sludge sand
12/05/2012CN102807851A Bio-enzyme viscosity-breaking blockage-removing agent and production process thereof
12/05/2012CN102807850A Oil-based stuck freeing agent composition for drilling fluid and preparation method for oil-based stuck freeing agent composition
12/05/2012CN102807849A Gel plugging agent for deep profile control of higher temperature oil reservoir and preparation method of gel plugging agent
12/05/2012CN102807848A Coal-to-liquid synthetic base drilling fluid with constant rheological property in deep water
12/05/2012CN102807847A Raw material formula and production method of bentonite for well drilling
12/05/2012CN102807846A Anti-collapse drilling fluid for coal bed methane horizontal well and method for preparing anti-collapse drilling fluid
12/05/2012CN102807503A Polymerizable monomer with surface activity and tackifying copolymer with surface activity as well as preparation methods and application thereof
12/05/2012CN102807478A Aralkyl alcohol polyoxyethylene ether compound and preparation method and application thereof
12/05/2012CN102806047A Amino acid gemini surfactant and preparation method and application thereof
12/05/2012CN102344791B Nano-molecular deposited film composite oil displacement agent
12/05/2012CN102190750B Copolymer of styrene and N-vinyl pyrrolidone, and preparation method and application thereof
12/05/2012CN102127418B Ultralight-weight proppant and preparation method thereof
12/05/2012CN102071006B Petroleum support agent prepared from oil shale waste and preparation method thereof
12/05/2012CN102061154B Nano high-efficiency composite blockage removing liquid
12/05/2012CN102010695B Organosilicon polysulfonate drilling fluid
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