| 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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| 10/30/2013 | CN101787864B Method for plugging water from oil reservoir fractured water logging oil well developed by injecting water into low-permeable reservoir stratum |
| 10/30/2013 | CN101718184B Foamed acid washing technological method for horizontal well |
| 10/30/2013 | CN101675140B In situ microemulsions used as spacer fluids |
| 10/30/2013 | CA2814286A1 Composite solids system to prepare polymer solutions for hydraulic fracturing treatments |
| 10/29/2013 | US8569214 Methods of using polysaccharide based cement additives |
| 10/29/2013 | US8569213 Drilling fluids having reduced sag potential and related methods |
| 10/29/2013 | CA2752261C Complementary surfactant compositions and methods for making and using same |
| 10/29/2013 | CA2656462C Mixture for improved foaming in the extraction of petroleum or natural gas |
| 10/24/2013 | WO2013159054A1 Novel large hydrophobe quaternary ammonium surfactants |
| 10/24/2013 | WO2013159027A1 Short hydrophobe surfactants |
| 10/24/2013 | WO2013158567A1 Surfactant formulations for foam flooding |
| 10/24/2013 | WO2013158308A1 Self-suspending proppants for hydraulic fracturing |
| 10/24/2013 | WO2013158306A1 Self-suspending proppants for hydraulic fracturing |
| 10/24/2013 | WO2013158164A1 Controlling hydrogen sulfide production in oilfield operations |
| 10/24/2013 | WO2013157921A1 Oil recovery from oil sludge with nanoemulsion surfactant |
| 10/24/2013 | WO2013156551A1 Treatment of underground formations with gels |
| 10/24/2013 | WO2013156407A1 Surfactant compositions and use thereof for the assisted recovery of hydrocarbons |
| 10/24/2013 | US20130281330 High solids content methods and slurries |
| 10/24/2013 | US20130281329 Ammonium salts of chelating agents and their use in oil and gas field applications |
| 10/24/2013 | US20130281328 Enhanced oil recovery compositions comprising proteins and surfactants and methods of using the same |
| 10/24/2013 | US20130281327 Alkyl hydrophobe surfactants |
| 10/24/2013 | US20130281326 Clay inhibitors for the drilling industry |
| 10/24/2013 | US20130277276 Quaternary ammonium surfactants |
| 10/24/2013 | US20130277055 Method for the assisted recovery of petroleum |
| 10/24/2013 | US20130277054 Gellable Treatment Fluids Having Adjustable Gel Times and Methods Associated Therewith |
| 10/24/2013 | US20130277048 Method of tracing flow of hydrocarbon from a subterranean reservoir |
| 10/23/2013 | EP2652247A1 High temperature temporary diverter and lost circulation material |
| 10/23/2013 | EP2652077A1 Treatment of illitic formations using a chelating agent |
| 10/23/2013 | EP2652076A1 Fluid suitable for treatment of carbonate formations containing a chelating agent |
| 10/23/2013 | EP2652074A1 Ammonium salts of chelating agents and their use in oil and gas field applications |
| 10/23/2013 | EP2652073A1 Process and fluid to improve the permeability of sandstone formations using a chelating agent |
| 10/23/2013 | EP2652072A1 Compositions of viscoelastic surfactant and hydrophobically modified polymer as aqueous thickeners |
| 10/23/2013 | EP2652071A1 Process to control iron in oil and gas applications using a chelating agent |
| 10/23/2013 | EP2652070A1 Recirculating, constant backpressure core flooding apparatus and method |
| 10/23/2013 | EP2652069A1 Method for determining a quantity of an alkaline agent to be injected in the framework of the assisted recovery of hydrocarbons |
| 10/23/2013 | EP2652068A1 Method for the assisted recovery of hydrocarbons, including optimizing the injection of an aqueous conditioning solution |
| 10/23/2013 | EP2652067A2 Acidic treatment fluids containing non-polymeric silica scale control additives and methods related thereto |
| 10/23/2013 | EP2652066A1 Sealing product for plugging and sealing a fractured or cracked formation, and method and system for manufacturing such a product |
| 10/23/2013 | EP2651877A2 Composition and method for reducing hydrate agglomeration |
| 10/23/2013 | EP2651849A1 Settable compositions comprising interground perlite and hydraulic cement |
| 10/23/2013 | EP2651827A1 Lignosulfonate grafts with an acid, ester and non-ionic monomers |
| 10/23/2013 | CN203244941U Fracturing mulling device |
| 10/23/2013 | CN103370393A Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations |
| 10/23/2013 | CN103370392A Particles for use in wellbore fluids |
| 10/23/2013 | CN103370391A Non-aqueous drilling additive useful to produce a flat temperature-rheology profile |
| 10/23/2013 | CN103362532A Method for preparing active-carbon-containing colloid gas foam for preventing gas emission in gob |
| 10/23/2013 | CN103362473A Graded variable density well cementation technology |
| 10/23/2013 | CN103361042A Xanthan gum non-crosslinking fracturing fluid as well as preparation method and application thereof |
| 10/23/2013 | CN103361041A Preparation method of high-density anti-gas-channeling well-cementing cement slurry |
| 10/23/2013 | CN103361040A Temporary plugging agent and preparation method thereof |
| 10/23/2013 | CN103361039A Blocking method adopting fluid gel for producing blocking valve by formation temperature to block gas reservoir |
| 10/23/2013 | CN103361038A High-temperature and high-density fresh water drilling fluid |
| 10/23/2013 | CN103361037A Borehole wall stabilizing agent and preparation method thereof |
| 10/23/2013 | CN102580610B Lignosulfonate alkylation modified surfactant and preparation method and application thereof |
| 10/23/2013 | CN102382242B Amphiphilic polymer and application thereof |
| 10/23/2013 | CN102329608B Microemulsion for improving core wettability |
| 10/23/2013 | CN102127404B Cementing slurry system suitable for large range of temperature |
| 10/23/2013 | CN102031094B Salt resistant high-temperature resistant solid-free environment-friendly well drilling and completing integrated working fluid |
| 10/22/2013 | US8563483 Mineral-based drilling fluid and drilling method |
| 10/22/2013 | US8563482 Environment friendly base fluid to replace the toxic mineral oil-based base fluids |
| 10/22/2013 | US8563481 Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same |
| 10/22/2013 | US8563480 Subterranean bridging agents |
| 10/22/2013 | US8563479 Volcanic ash-based drilling mud to overcome drilling challenges |
| 10/22/2013 | CA2740453C Resin and foam resin sealants for zonal isolation and methods for making and using same |
| 10/22/2013 | CA2737377C Polymer gels as flow improvers in water injection systems |
| 10/22/2013 | CA2686404C In-line treatment of hydrocarbon fluids with ozone |
| 10/22/2013 | CA2603894C Wax-containing materials |
| 10/17/2013 | WO2013154926A1 Fluids and methods including nanocellulose |
| 10/17/2013 | WO2013154726A1 Wellbore servicing fluid system and methods of use |
| 10/17/2013 | WO2013154717A1 Acidizing fluids comprising a salt block inhibitor and methods for use thereof |
| 10/17/2013 | WO2013154711A1 Treatment fluids comprising an alkali metal complexing agent and methods for use thereof |
| 10/17/2013 | WO2013154710A1 Treatment fluids comprising a silicate complexing agent and methods for use thereof |
| 10/17/2013 | WO2013154435A1 Oil based drilling fluids and mixture for use in oil based drilling fluids |
| 10/17/2013 | US20130274156 Low interfacial tension surfactants for petroleum applications |
| 10/17/2013 | US20130274155 Process to control iron in oil and gas applications using a chelating agent |
| 10/17/2013 | US20130274154 Process and fluid to improve the permeability of sandstone formations using a chelating agent |
| 10/17/2013 | US20130274153 Alkali-activated coatings for proppants |
| 10/17/2013 | US20130274152 Polysaccharide slurries with environmentally friendly activator solvents |
| 10/17/2013 | US20130274151 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same |
| 10/17/2013 | US20130274150 Lignosulfonate grafts with an acid, ester and non-ionic monomers |
| 10/17/2013 | US20130274149 Fluids and methods including nanocellulose |
| 10/17/2013 | US20130270012 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same |
| 10/17/2013 | US20130269944 Treatment Fluids Comprising an Alkali Metal Complexing Agent and Methods for Use Thereof |
| 10/17/2013 | US20130269941 Treatment Fluids Comprising a Hydroxypyridinecarboxylic Acid and Methods for Use Thereof |
| 10/17/2013 | US20130269932 Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amine oxides |
| 10/16/2013 | EP2649220A1 Corrosion inhibitors |
| 10/16/2013 | EP2649148A2 Multiple component neutrally buoyant proppant |
| 10/16/2013 | EP2649147A2 Single component neutrally buoyant proppant |
| 10/16/2013 | EP2649146A1 Improved method for the assisted recovery of petroleum |
| 10/16/2013 | EP2649022A1 Wellbore servicing compositions comprising a fluid loss agent and methods of making and using same |
| 10/16/2013 | CN203238214U Resin precoated sand |
| 10/16/2013 | CN103354858A Apparatus and methods for tracking the location of fracturing fluid in a subterranean formation |
| 10/16/2013 | CN103352683A Method of formation protection while performing downhole operation |
| 10/16/2013 | CN103351857A Salt-tolerant wormlike micellar system, preparation method and application thereof in flooding oil |
| 10/16/2013 | CN103351856A Flushing fluid of relieving damage of low permeable sandstone air layer drilling fluid and preparation method thereof |
| 10/16/2013 | CN103351855A Elastic spacer fluid capable of preventing swelled damage to casing pipe for well cementation |
| 10/16/2013 | CN103351854A Drilling fluid with chemical reverse osmosis function |
| 10/16/2013 | CN103351853A High-temperature gas well and horizontal well drilling fluid and completion fluid containing same |
| 10/16/2013 | CN103351852A Biodiesel lubricant for water-based drilling fluid and preparation method and application thereof |
| 10/16/2013 | CN103351447A Rheological stabilizer for synthetic base drilling fluid and preparation method thereof |