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)
04/2014
04/30/2014CN103755868A Resistance reducing agent for fracturing quick water of shale gas and preparation method thereof
04/30/2014CN103159464B Method for preparing fracturing propping agent for shale gas exploitation by utilizing slag
04/30/2014CN102719234B Thickened oil viscosity depressant as well as preparation method and application thereof
04/30/2014CN102533237B Preparation method of novel organic amine adsorbed film type corrosion inhibitor for oil field
04/30/2014CN102337109B Sand-based composition and expanded sand as well as preparation method of expended sand
04/30/2014CN102305050B SUN-W100 biological enzyme well completion production increasing process for well completion plugging removal of oil field
04/30/2014CN102131872B Use of a novolak resin for enhancing the acid resistance of a polyamide composition
04/30/2014CN101627101B Low-density ceramic proppant and its production method
04/30/2014CN101605801B Process for stabilized zirconium triethanolamine complex and uses in oil field applications
04/30/2014CN101405364B Additive for preserving the fluidity of fluids containing gas hydrates
04/29/2014US8709983 Non-phosphorus-based gellant for hydrocarbon fluids
04/29/2014US8709982 Additives for oil recovery from reservoirs
04/29/2014US8708045 Multifunctional boronic acid crosslinking agents and associated methods
04/29/2014CA2759743C Additive composition for well treatment fluids
04/29/2014CA2759728C Aphron-containing fracturing fluid
04/29/2014CA2755727C High performance drilling fluids with submicron-size particles as the weighting agent
04/29/2014CA2741824C Cement compositions and methods utilizing nano-hydraulic cement
04/29/2014CA2527144C Reversibly switchable surfactants and methods of use thereof
04/24/2014WO2014062992A1 New environmentally friendly fluid to remove mn3o4 filter cake
04/24/2014WO2014062988A1 Bubble-enhanced proppant for well fracturing
04/24/2014WO2014062920A1 Passive downhole chemical release packages
04/24/2014WO2014062493A1 Gelling agents and methods of using the same
04/24/2014WO2014062335A1 Defoaming agent compositions and methods of making and using same
04/24/2014WO2014062326A1 Invert emulsion with encapsulated breaker for well treatment
04/24/2014WO2014060686A1 Drilling fluid containing graphene
04/24/2014WO2014011549A4 Insulating annular fluid
04/24/2014WO2012054569A3 Non-homopolymers exhibiting gas hydrate inhibition, salt tolerance and high cloud point
04/24/2014US20140113843 Wellbore Servicing Compositions and Methods of Making and Using Same
04/24/2014US20140113842 Betaine surfactants and preparation methods and uses thereof
04/24/2014US20140113841 Bubble-enhanced proppant for well fracturing
04/24/2014US20140110305 Method and composition for enhanced hydrocarbon recovery
04/24/2014US20140110177 Green directional drilling fluid composition
04/24/2014US20140110121 New Environmentally Friendly Fluid to Remove Mn3O4 Filter Cake
04/24/2014US20140110120 Oligomeric and Polymeric Electronically-Modified Boronic Acids and Methods of Using the Same
04/24/2014US20140110117 Modified nonionic surfactant formulations for enhanced oil recovery
04/24/2014US20140110115 Gelling Agents and Methods of Using the Same
04/24/2014US20140110113 Crosslinkable Water Soluble Compositions And Methods Of Using The Same
04/24/2014US20140110111 Resin-Coated Proppant And Methods Of Use
04/24/2014US20140110110 Porous Proppants
04/24/2014US20140109799 Cement composition based on calcium aluminate cement
04/23/2014EP2722378A1 Method for fracturing or fraccing a well
04/23/2014EP2721119A2 Composition of polybutadiene-based formula for downhole applications
04/23/2014EP2721118A1 Method of inhibiting or controlling release of well treatment agent
04/23/2014CN103748201A Surfactant compositions
04/23/2014CN103748190A Well servicing fluid and method of servicing a well with the fluid
04/23/2014CN103748189A Aluminum sulphonate salt for controlled release of surfactants in an enhanced oil recovery process
04/23/2014CN103742118A Modified guar fracturing fluid recycling method
04/23/2014CN103741466A Modified fiber for fracturing and preparation process
04/23/2014CN103740357A Low-tension foaming agent composition and preparation method thereof
04/23/2014CN103740356A Petroleum fracturing proppant and preparation method thereof
04/23/2014CN103740355A High-salinity water-based modified xanthan gum fracturing fluid and preparation method thereof
04/23/2014CN103740354A A surfactant composition used for tertiary oil recovery and a preparation method thereof
04/23/2014CN103740353A Composite blocking remover and method for removing blockage of compact sandstone reservoir pressing crack commissioning horizontal well in composite manner
04/23/2014CN103740352A Expansion oil well cement with temperature resistance
04/23/2014CN103740351A Low-density consolidation type plugging agent
04/23/2014CN103740350A Polymer wide-temperature-zone retarder for oil-gas well cement and preparation method thereof
04/23/2014CN103740349A Anti-high temperature consolidation type plugging agent
04/23/2014CN103740348A Leaking stoppage reinforcing agent
04/23/2014CN103740347A High performance calcium aluminate oil well cement
04/23/2014CN103740346A Plugging flexibilizer
04/23/2014CN103740345A Foam sealing channeling composition, preparation method thereof and applications thereof
04/23/2014CN103740344A Well cementation displacement efficiency enhancement spacer fluid
04/23/2014CN103740343A Na2SiO3-KCl anti-collapse drilling fluid and preparation method thereof
04/23/2014CN103740342A High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof
04/23/2014CN103740341A Leaking stoppage pressure-bearing agent
04/23/2014CN103740340A Expansion and solidification type plugging agent
04/23/2014CN103740339A Plugging filler
04/23/2014CN103739779A Preparation and application methods of high temperature resistant cement retarder
04/23/2014CN103739778A Core-shell polyacrylamide microsphere profile controlling oil displacement agent and preparation method thereof
04/23/2014CN103739777A Core-shell type cationic/anionic polyacrylamide profile control oil displacing microsphere and preparation method thereof
04/23/2014CN103739769A Method for preparing novel hydrophobic association type polymer surfactant
04/23/2014CN103739758A Preparation method of polyacrylamide for oil field
04/23/2014CN102993780B Long-chain fatty acid-modified quartz material and preparation method thereof
04/23/2014CN102732234B Salt-resistant temperature-resistant micro-foam water-based drilling fluid
04/23/2014CN102703042B Alkali-proof polymer-type profile control agent and preparation method thereof
04/23/2014CN102676149B Viscoelastic fluid, preparation method thereof and method for treating subsurface formation
04/23/2014CN102585795B Viscoelastic fluid, preparing method thereof and method for processing underground stratum
04/23/2014CN102465688B Oil displacement method for improving tertiary oil recovery rate of high-temperature and high-salt oil reservoir
04/23/2014CN102428155B High performance drilling fluids with submicron-size particles as the weighting agent
04/22/2014US8703659 Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole
04/22/2014US8703658 Drilling fluid and methods
04/22/2014US8703657 Inverse emulsion polymers as lost circulation material
04/22/2014US8703656 Chlorine dioxide precursor and methods of using same
04/22/2014US8703655 Dispersing sulfide scales in oil and gas production systems
04/22/2014US8701774 Hydraulic fracturing
04/22/2014US8701763 Methods for treating hydrocarbon-bearing formations having brine
04/22/2014CA2789289C Oil well drilling fluids, oil well cement composition and slurry of weighting material
04/22/2014CA2691860C Oil formulation for preventing water penetration in underground formations
04/17/2014WO2014059167A1 Methods of preventing emulsification of crude oil in well bore treatment fluids
04/17/2014WO2014058553A1 Nanoparticle modified fluids and methods of manufacture thereof
04/17/2014WO2014056948A1 A method for recovering oil
04/17/2014WO2014056947A1 Method and device for the recovery of hydrocarbons from an oil reservoir
04/17/2014WO2014033557A3 Emulsions to enhance microbial activity in a reservoir
04/17/2014WO2013192438A3 Self-suspending proppants for hydraulic fracturing
04/17/2014WO2012121995A3 Thermal insulating fluids
04/17/2014US20140107253 Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use
04/17/2014US20140107252 Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use
04/17/2014US20140107000 Stabilized blends containing antioxidants
04/17/2014US20140106993 Systems and methods for processing glycerol
04/17/2014US20140106992 Invert emulsion with encapsulated breaker for well treatment
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