| 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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| 10/16/2013 | CN102676136B Low-fluorescence high temperature resistant drilling fluid |
| 10/16/2013 | CN102643637B Clear fracturing fluid |
| 10/16/2013 | CN102618243B Coagulation-reducing viscosity-reducing agent for high-coagulation thickened oil |
| 10/16/2013 | CN102604606B Chemical secondary-crosslinking jelly foam water plugging and profile controlling liquid |
| 10/16/2013 | CN102559160B Unidirectional temporary plugging agent for natural gas wells and application method thereof |
| 10/16/2013 | CN102533601B Bacillus simplex, and culture method and application thereof |
| 10/16/2013 | CN102533245B Mannich base metal iodide corrosion inhibitor and preparation method thereof |
| 10/16/2013 | CN102533244B Encapsulated sustained-release acid for oil-water well reconstruction and preparation method thereof |
| 10/16/2013 | CN102533241B Crude oil pour point depressant |
| 10/16/2013 | CN102516960B Micro-suspension self-selection profile control agent and application method thereof |
| 10/16/2013 | CN102504786B Sulfur-containing natural gas hydrate inhibitor |
| 10/16/2013 | CN102492410B Thick oil-soluble viscosity reducer and preparation method thereof |
| 10/16/2013 | CN102382245B High temperature-resistant polymer filtrate reducer for drilling fluid and preparation method thereof |
| 10/16/2013 | CN102372818B Temperature and salt resistant copolymer for oil field and preparation method thereof |
| 10/16/2013 | CN102372806B Initiator composition used for synthesizing polyacrylamide capable of displacing oil |
| 10/16/2013 | CN102361952B Fluid loss additive and breaking agent |
| 10/16/2013 | CN102329768B Flora construction method for residual oil gasification exploitation of oil deposit |
| 10/16/2013 | CN102220120B Binary compound flooding compound and preparation method thereof |
| 10/16/2013 | CN102191030B Surfactant for displacing oil and preparation method |
| 10/16/2013 | CN102061155B Annular protective liquid for water injection well and application thereof |
| 10/15/2013 | US8555967 Methods and systems for evaluating a boundary between a consolidating spacer fluid and a cement composition |
| 10/15/2013 | CA2795417C Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 10/15/2013 | CA2644213C Method of treating subterranean formations using mixed density proppants or sequential proppant stages |
| 10/15/2013 | CA2577940C Method for treating underground formations or cavities with microgels |
| 10/15/2013 | CA2559797C Paraffin inhibitors |
| 10/10/2013 | WO2013150203A1 New aqueous fracturing fluid composition and fracturing method implementing the fluid |
| 10/10/2013 | WO2013150131A1 Surfactant compounds, compositions comprising same, method for synthesizing same, and uses thereof, in particular for the assisted recovery of hydrocarbons |
| 10/10/2013 | WO2013149923A1 Method for dissolving deposits containing alkaline earth metal sulphates |
| 10/10/2013 | WO2012170522A3 Proppant pillar placement in a fracture with high solid content fluid |
| 10/10/2013 | US20130267446 Treatment of illitic formations using a chelating agent |
| 10/10/2013 | US20130267445 Antifoaming and Defoaming Agents for Drilling Fluids |
| 10/10/2013 | US20130267444 Wellbore Servicing Fluid System and Methods of Use |
| 10/10/2013 | US20130264121 Graphene-based material for shale stabilization and method of use |
| 10/10/2013 | US20130264061 Method for treating hydrocarbon-bearing formations with fluorinated amine |
| 10/10/2013 | US20130264060 Fluid suitable for treatment of carbonate formations containing a chelating agent |
| 10/10/2013 | US20130264055 System and method for low damage fracturing |
| 10/09/2013 | EP2647688A1 Method for loosening deposits containing alkaline earth metal sulphates |
| 10/09/2013 | EP2647687A1 Compositions and methods for well completions |
| 10/09/2013 | EP2646646A1 Method and apparatus for thermally treating an oil reservoir |
| 10/09/2013 | EP2646600A1 Corrosion inhibitor compositions comprising reaction products of aldehydes and amides and related methods |
| 10/09/2013 | EP2646522A1 Compositions and methods relating to the stabilization of hydrophobically modified hydrophilic polymer treatment fluids under alkaline conditions |
| 10/09/2013 | EP2646412A2 Synthetic acid and associated methods |
| 10/09/2013 | CN203227427U Foam-like fracturing fluid preparation device |
| 10/09/2013 | CN103347976A Method and composition for enhanced hydrocarbons recovery from a formation containing a crude oil |
| 10/09/2013 | CN103343675A Compound plug removal technological method for offshore oil field injection well |
| 10/09/2013 | CN103342998A Modifying and flooding agent used for oilfield polymer flooding |
| 10/09/2013 | CN103342997A Acyl (-N,N-dialkyl) diamine surfactant and preparation method and application thereof |
| 10/09/2013 | CN103342996A Ampholytic surfactant and preparation method thereof |
| 10/09/2013 | CN103342995A Safety blocking remover for oilfield fractured well |
| 10/09/2013 | CN103340202A Preparation method for high-efficiency oilfield bactericide |
| 10/09/2013 | CN102660243B Drag reducer for overcoming high-pressure under-injection of water-injection well in low-permeability reservoir |
| 10/09/2013 | CN102627959B Gel breaker microcapsule controlled to release concentratedly in 2-3 h and preparation method thereof |
| 10/09/2013 | CN102627958B Efficient microcapsule gel breaker and preparation method thereof |
| 10/09/2013 | CN102614930B Metal quaternary ammonium oxyphosphate dispersoid and application of metal quaternary ammonium oxyphosphate dispersoid in exploitation of thickened oil |
| 10/09/2013 | CN102604623B AM/NaAA/NAC water-soluble polymer oil-displacement agent and synthesizing method thereof |
| 10/09/2013 | CN102604622B Oil displacing agent containing imidazole ring quaternary ammonium salt polymer and preparation method |
| 10/09/2013 | CN102585092B Betaine type salt-resistant polymer and preparation method thereof |
| 10/09/2013 | CN102408886B Efficient stink-free sulfur solving agent, and preparation method and application thereof |
| 10/09/2013 | CN102391418B Hydrophobically associating water-soluble polymer (HAWSP) oil displacement agent and synthesis method thereof |
| 10/09/2013 | CN101402592B Stone oil sulphonic acid, its salt, preparation method and uses thereof |
| 10/08/2013 | US8551926 Stabilizing emulsified acids for carbonate acidizing |
| 10/08/2013 | US8551925 Imidazoline-based heterocyclic foamers for downhole injection |
| 10/08/2013 | US8551924 Consolidating agent emulsions and associated methods |
| 10/08/2013 | US8551923 Foamed spacer fluids containing cement kiln dust and methods of use |
| 10/08/2013 | US8551244 Self adaptive cement systems |
| 10/08/2013 | US8550165 Well servicing fluid |
| 10/08/2013 | US8550161 Shear-activated viscoelastic surfactant fluid and method |
| 10/08/2013 | CA2723451C Microemulsion composition and method for treatment of a subterranean formation |
| 10/08/2013 | CA2610758C Surfactant mixtures for tertiary oil recovery |
| 10/03/2013 | WO2013149122A1 Additive for subterranean treatment |
| 10/03/2013 | WO2013148985A1 Methods for producing and employing oil and gas well drilling and completion fluids as well as hydraulic fracturing fluids employing triglyceride processing by products and propylene glycol recovered from aircraft deicing operations |
| 10/03/2013 | WO2013148976A1 Method of cementing in a subterranean formation using cement composition comprising lignite - based grafted copolymers |
| 10/03/2013 | WO2013148760A1 Microemulsion flowback aid composition and method of using same |
| 10/03/2013 | WO2013148712A1 Novel use of a mild alkaline agent in chemical eor |
| 10/03/2013 | WO2013148414A1 Methods of forming high-porosity fractures in weakly consolidated or unconsolidated formations |
| 10/03/2013 | WO2013148116A2 Low viscosity synthetic cement |
| 10/03/2013 | WO2013148068A1 Compositions, systems and methods for releasing additive components |
| 10/03/2013 | WO2013113740A3 Corrosion inhibitors for metal surfaces |
| 10/03/2013 | WO2013098164A3 Novel organic-anorganic composite materials as a result of biomineralisation |
| 10/03/2013 | US20130261220 Low Viscosity Synthetic Cement |
| 10/03/2013 | US20130261033 Microemulsion flowback aid composition and method of using same |
| 10/03/2013 | US20130261032 Additive for subterranean treatment |
| 10/03/2013 | US20130261031 Methods for producing and employing oil and gas well drilling and completion fluids as well as hydraulic fracturing fluids employing triglyceride processing by products and propylene glycol recovered from aircraft deicing operations |
| 10/03/2013 | US20130261030 Fluids for use with High-frequency Downhole Tools |
| 10/03/2013 | US20130255954 Novel aqueous fracturing fluid composition and fracturing process using the composition |
| 10/03/2013 | US20130255953 Method and apparatus for preparing fracturing fluids |
| 10/03/2013 | US20130255951 Compositions, Systems and Methods for Releasing Additive Components |
| 10/03/2013 | US20130255949 Cement Compositions Comprising Lignite-Based Grafted Copolymers and Methods of Use |
| 10/03/2013 | US20130255948 Compositions and Methods for Well Completions |
| 10/03/2013 | US20130255945 Ceramic proppants |
| 10/02/2013 | EP2644685A1 Composition comprising zwitterionic geminal liquids as wettability modifiers in improved oil recovery processes |
| 10/02/2013 | EP2643424A1 Method for oil recovery using hydrophobically associating polymers |
| 10/02/2013 | EP2643423A1 Method for oil recovery using hydrophobically associating polymers |
| 10/02/2013 | EP2643422A1 Aqueous formulations of hydrophobically associating copolymers and surfactants and also their use for pertroleum recovery |
| 10/02/2013 | EP2643421A1 Consolidation |
| 10/02/2013 | EP2643369A1 Use of hydrophobically associating copolymer as additive in specific oilfield applications |
| 10/02/2013 | CN103339220A Method for oil recovery using hydrophobically associating polymers |
| 10/02/2013 | CN103333839A Mannanase, and gene and applications thereof |
| 10/02/2013 | CN103333673A Deep low-damage acidizing fluid |
| 10/02/2013 | CN103333672A Salt-tolerant resistance-reducing agent applied for shale gas reservoir |