| 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) |
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| 08/14/2013 | EP2625243A1 Low residue formation fracturing |
| 08/14/2013 | EP2625242A2 Graphene-based material for shale stabilization and method of use |
| 08/14/2013 | CN1942550B Viscoelastic acid |
| 08/14/2013 | CN103249909A Method to enhance fiber bridging |
| 08/14/2013 | CN103245595A Method for evaluating moving prevention ability of cement paste |
| 08/14/2013 | CN103242819A Ultrahigh-density ceramsite proppant and preparation method thereof |
| 08/14/2013 | CN103242818A AM (acrylamide)/NaAA (sodium acrylic acid)/AMPL (N-allyl morpholinium) ternary copolymer oil displacement agent and synthesis method thereof |
| 08/14/2013 | CN103242817A Emulsified penetration-driving oil recovery agent and preparation method thereof |
| 08/14/2013 | CN103242816A Preparation method of low-permeability reservoir oil-displacing agent |
| 08/14/2013 | CN103242815A Preparation method of thickened oil aqua-thermolysis catalysis viscosity reducer with double structures of hydrogen supply and catalytic activity center |
| 08/14/2013 | CN103242814A Slow blocking remover for deep part of oil and water well |
| 08/14/2013 | CN103242813A Gel curing solution and preparation method thereof |
| 08/14/2013 | CN103242812A Switchable foaming solution for foam drilling and well cleanup on oil and gas field |
| 08/14/2013 | CN103242811A Betonite for non-excavation drilling fluid |
| 08/14/2013 | CN103242810A Drilling fluid for protecting coal bed against collapse |
| 08/14/2013 | CN103242809A Acrylic-series emulsion copolymer and application thereof as well as drilling fluid drag reducer and preparation method thereof |
| 08/14/2013 | CN103242538A Water-soluble mesh cucurbituril polymer and preparation method thereof |
| 08/14/2013 | CN103242498A Amphiphilic block inner quaternary ammonium salt as well as preparation method and application thereof |
| 08/14/2013 | CN103242484A Propenol/N-vinyl pyrrolidone copolymer and preparation method thereof |
| 08/14/2013 | CN103242207A Amide compound and drilling fluid drag reducer as well as preparation method of drilling fluid drag reducer |
| 08/14/2013 | CN102718522B Method for preparing fracturing propping agent by using rejects |
| 08/14/2013 | CN102482568B Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amphoteric compounds |
| 08/14/2013 | CN102464651B Compound containing cyclic group having disulfide structure and preparation method and application of compound |
| 08/14/2013 | CN102453114B Redox initiator system, acrylamide polymer and preparation method and application of acrylamide polymer |
| 08/14/2013 | CN102453113B Redox initiator system and acrylamide polymer and preparation method thereof and application thereof |
| 08/14/2013 | CN102443111B Profile modification agent for epoxy resin emulsion |
| 08/14/2013 | CN102433111B Acid liquid for acid fracturing and preparation method thereof |
| 08/14/2013 | CN102391417B Hydrophobically associating water-soluble polymer (HAWSP) oil displacement agent and preparation method thereof |
| 08/14/2013 | CN102382241B Long-branched chain polyacrylamide copolymer and preparation method thereof |
| 08/14/2013 | CN102372648B Polymerizable functional monomer and synthesis method thereof |
| 08/14/2013 | CN102372647B Free radical polymerization functional monomer and synthesis method thereof |
| 08/14/2013 | CN102367380B Fracturing fluid which resists temperature of 200 DEG C |
| 08/14/2013 | CN102352226B Low-temperature early-strength oil well cement paste |
| 08/14/2013 | CN102304358B Radiolabeled coated ceramsite supporting agent and preparation method thereof |
| 08/14/2013 | CN102051165B Xanthan gum graft copolymer oil displacement agent as well as preparation method and application thereof |
| 08/14/2013 | CN102049212B Branched chain ether type anionic surfactant and preparation method thereof |
| 08/14/2013 | CN101665686B Method for preparing surface-modified proppant |
| 08/13/2013 | US8507413 Methods using well drilling fluids having clay control properties |
| 08/13/2013 | US8507412 Methods for using non-volatile phosphorus hydrocarbon gelling agents |
| 08/13/2013 | US8505631 Compositions having HASE rheology modifiers |
| 08/13/2013 | US8505630 Consolidating spacer fluids and methods of use |
| 08/13/2013 | US8505629 Foamed spacer fluids containing cement kiln dust and methods of use |
| 08/13/2013 | US8505628 High solids content slurries, systems and methods |
| 08/13/2013 | US8505626 α-Amino acid phosphonic acid compounds, method of preparation of use thereof |
| 08/13/2013 | DE202013005109U1 Öl-basierte Bohrflüssigkeiten mit Copolymeren aus Styrol, Hydroxyalkyl(meth)acrylat und (Meth)acrylsäure Oil-based drilling fluids with copolymers of styrene, hydroxyalkyl (meth) acrylate and (meth) acrylic acid |
| 08/13/2013 | DE202013005107U1 Öl-basierte Bohrflüssigkeiten mit Copolymeren aus Styrol, tert.-Butyl(meth)acrylat und (Meth)acrylsäure Oil-based drilling fluids with copolymers of styrene, of tert-butyl (meth) acrylate and (meth) acrylic acid |
| 08/13/2013 | CA2751528C Method for diversion of hydraulic fracture treatments |
| 08/09/2013 | CA2807992A1 Treatment of subterranean formations |
| 08/08/2013 | WO2013116875A1 Earth metal peroxide fluidized compositions |
| 08/08/2013 | WO2013116470A1 Cellulose nanowhiskers in well services |
| 08/08/2013 | WO2013116422A1 Method of delaying crosslinking in well treatment operation |
| 08/08/2013 | WO2013116227A1 Nanohybrid phase interfaces for foaming in oil field applications |
| 08/08/2013 | WO2013116198A1 Nanohybrid phase interfaces for altering wettability in oil field applications |
| 08/08/2013 | WO2013116072A1 Engineering plastic/ inorganic fiber blends as lost circulation materials |
| 08/08/2013 | WO2013115981A1 Treatment fluids containing a boron trifluoride complex and methods for use thereof |
| 08/08/2013 | WO2013113126A1 Microbial enhanced treatment of carbonate reservoirs for in situ hydrocarbon recovery |
| 08/08/2013 | US20130203637 Method of delaying crosslinking in well treatment operation |
| 08/08/2013 | US20130203636 Water-Based Mud Lubricant Using Fatty Acid Polyamine Salts and Fatty Acid Esters |
| 08/08/2013 | US20130199788 Method and composition for enyhanced hydrocarbons recovery |
| 08/07/2013 | EP2623579A1 Hydrophobic proppant and preparation method thereof |
| 08/07/2013 | EP2623578A1 Compositions and methods for reducing torque during well cementing |
| 08/07/2013 | EP2622175A1 Control of fluid flow during treatment of subterranean sites using well fluid injection |
| 08/07/2013 | EP2622041A1 Process for separating kinetic hydrate polymer inhibitors |
| 08/07/2013 | EP2622040A1 Spacer fluids containing cement kiln dust and methods of use |
| 08/07/2013 | CN103233466A Construction method for large-diameter bored pile penetrating through deep granular bedding |
| 08/07/2013 | CN103233233A Method and process for preventing subsea oil-water hybrid delivery pipe corrosion |
| 08/07/2013 | CN103232966A Middle and high temperature resisting exopoly water insoluble polysaccharide protoplast fusion engineering bacterium and application thereof |
| 08/07/2013 | CN103232840A High density fracturing fluid and preparation method thereof |
| 08/07/2013 | CN103232839A Water shutoff agent applicable to high-temperature high-salt oil reservoir water shutoff profile control |
| 08/07/2013 | CN103232838A Preparation and application method of cement profile control agent |
| 08/07/2013 | CN103232581A Modified starch capable of resisting high temperature and resisting saturated salt |
| 08/07/2013 | CN102634330B Preparation method of multi-hydrogen acid for oil and gas reservoir |
| 08/07/2013 | CN102516967B Alkali/surfactant/polymer (ASP) flooding calcium-silicon-barium scale inhibitor and preparation method thereof |
| 08/07/2013 | CN102464974B Composition capable of greatly improving crude oil recovery ratio and preparation method thereof |
| 08/07/2013 | CN102373042B Foaming agent composition used for high temperature and high salt oil reservoir |
| 08/07/2013 | CN102352232B Temperature-resistant and salt-resistant polymer clean fracturing fluid thickening agent and preparation method thereof |
| 08/07/2013 | CN102352223B Hydrolyzed polyacrylonitrile-bipoly ammonium salt for drilling fluid |
| 08/07/2013 | CN102061151B Plugging bearing material for petroleum drilling, and preparation method and application thereof |
| 08/07/2013 | CN101959993B Method and composition for enhanced hydrocarbons recovery |
| 08/07/2013 | CN101711273B Well service compositions for consolidation of particulates in subterranean coal seams |
| 08/07/2013 | CN101631847B Improved aqueous-based insulating fluids and related methods |
| 08/06/2013 | US8501670 Well treatment fluid compositions and methods of use that include a delayed release percarbonate formulation |
| 08/06/2013 | US8499835 Well service compositions for consolidation of particulates in subterranean coal seams |
| 08/06/2013 | US8499833 Zero-leakoff emulsified acid |
| 08/06/2013 | CA2734805C High performance water based fluids |
| 08/06/2013 | CA2703460C Methods for increase gas production and load recovery |
| 08/06/2013 | CA2525561C An improved non-metallic thread sealant and anti-seize compound |
| 08/01/2013 | WO2013113009A1 Wellbore fluids incorporating magnetic carbon nanoribbons and magnetic functionalized carbon nanoribbons and methods of using the same |
| 08/01/2013 | WO2013112811A1 A method of increasing efficiency in a hydraulic fracturing operation |
| 08/01/2013 | WO2013112725A1 Wellbore fluids used with oil-swellable elements |
| 08/01/2013 | WO2013112679A1 Biodegradable oil external emulsion for removal of asphaltene and/or paraffin from producing oil wells |
| 08/01/2013 | WO2013112664A1 Composition and method for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/01/2013 | WO2013112503A1 Asphaltene inhibitors for squeeze applications |
| 08/01/2013 | WO2013112495A1 Substituted cellulose acetates and uses thereof |
| 08/01/2013 | WO2013110774A1 Desorbants for enhanced oil recovery |
| 08/01/2013 | WO2013110773A1 Filtrate control agents in solid form |
| 08/01/2013 | WO2013110132A1 Method of producing biosurfactants |
| 08/01/2013 | WO2012085509A8 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations |
| 08/01/2013 | US20130196886 Surfactant systems for enhanced oil recovery |
| 08/01/2013 | US20130196885 Use of environmentally friendly solvents to replace glycol-based solvents |