| 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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| 03/28/2013 | US20130075100 Aggregating reagents and methods for making and using same |
| 03/28/2013 | US20130075085 Use of glutamate for microbial enhanced oil recovery |
| 03/28/2013 | CA2849276A1 Use of carbon dioxide soluble nonionic surfactants for enhanced crude oil recovery |
| 03/28/2013 | CA2849248A1 Compositions and methods of treating high temperature subterranean formations |
| 03/28/2013 | CA2849067A1 Method of using dithiazines and derivatives thereof in the treatment of wells |
| 03/28/2013 | CA2848198A1 Multi-stage methods and compositions for desensitizing subterranean formations faces |
| 03/28/2013 | CA2846953A1 Hydrocarbon mobility and recovery through in-situ combustion with the addition of ammonia |
| 03/28/2013 | CA2846633A1 Use of glutamate for microbial enhanced oil recovery |
| 03/28/2013 | CA2845751A1 Regeneration of kinetic hydrate inhibitor |
| 03/27/2013 | EP2571957A2 Increasing the viscosity of viscoelastic fluids |
| 03/27/2013 | CN202832452U Treating fluid conveying equipment for steam drive injection well to inhibit oil layer to generate hydrogen sulfide |
| 03/27/2013 | CN202832449U Polymer flooding oil field on line profile control device |
| 03/27/2013 | CN103003520A Method and system for treating a subterranean formation |
| 03/27/2013 | CN103003386A A proppant |
| 03/27/2013 | CN103003385A Guerbet alcohol alkoxylate surfactants and their use in enhanced oil recovery applications |
| 03/27/2013 | CN102994070A Preparation process of polymer acid viscosifier |
| 03/27/2013 | CN102994069A Low damage carboxymethyl hydroxypropyl guanidine gum foam fracturing fluid of low permeability gas reservoir and preparation method of low damage carboxymethyl hydroxypropyl guanidine gum foam fracturing fluid |
| 03/27/2013 | CN102994068A Preparation process of clean fracturing fluid with remarkably increased viscosity number of system |
| 03/27/2013 | CN102994067A Process for preparing clean fracturing fluid based on saline dosage control |
| 03/27/2013 | CN102994066A Process for preparing clean fracturing fluid based on sodium salicylate dosage control |
| 03/27/2013 | CN102994065A Preparation technique of clean fracturing fluid on basis of control on surfactant addition amount |
| 03/27/2013 | CN102994064A Novel clean fracturing fluid for hydraulic fracturing |
| 03/27/2013 | CN102994063A Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance |
| 03/27/2013 | CN102994062A Aromatic hydrocarbon-nonionic active agent type gusher stuck-releasing agent |
| 03/27/2013 | CN102994061A Wax cleaning agent for hot water dispensing deep well high-pour point wax |
| 03/27/2013 | CN102994060A Rock-soil drilling and digging hole engineering polymer type solid-free slurry and preparation method |
| 03/27/2013 | CN102994059A Low-density cement slurry |
| 03/27/2013 | CN102994058A High-temperature-resistant non-silicate cement paste system for cementing thermal production well of thickened oil |
| 03/27/2013 | CN102994057A Heat-resistant and salt-resistant profile controlling agent and preparation method thereof |
| 03/27/2013 | CN102994056A Polymer leakage preventing and plugging agent while drilling |
| 03/27/2013 | CN102994055A Method for preparing filtrate reducer hydrolyzed polyacrylonitrile for drilling fluid |
| 03/27/2013 | CN102993780A Long-chain fatty acid-modified quartz material and preparation method thereof |
| 03/27/2013 | CN102993373A Preparation process of acid viscosifier |
| 03/27/2013 | CN102993372A Technology for preparing leakage preventing and plugging agent while drilling for controlling pH value of reaction system |
| 03/27/2013 | CN102993371A Preparation process of leak protection plugging agent along with drilling by controlling dosage of cross-linking agent |
| 03/27/2013 | CN102993370A Preparation process of leak protection plugging agent along with drilling by controlling reaction temperature |
| 03/27/2013 | CN102993369A Technology for preparing acid liquor thickening agent for controlling reaction temperature |
| 03/27/2013 | CN102993368A Acid liquor thickener preparation technique by changing consumption of initiator |
| 03/27/2013 | CN102993367A Preparation process of acid viscosifier capable of significantly improving intrinsic viscosity |
| 03/27/2013 | CN102993366A Preparation technique of preventing and plugging agent during drilling |
| 03/27/2013 | CN102993365A Technology for preparing acid liquor thickening agent for controlling usage of complexing agent |
| 03/27/2013 | CN102993364A Preparation process of leak protection plugging agent along with drilling based on control of dosage of initiator |
| 03/27/2013 | CN102993363A Preparation process of acid viscosifier based on control of dosage of maleic anhydride |
| 03/27/2013 | CN102993362A Preparation process of leak protection plugging agent along with drilling by controlling dosage of filling agent |
| 03/27/2013 | CN102993361A Preparation process of leak protection plugging agent along with drilling based on control of monomer weight ratio |
| 03/27/2013 | CN102993360A Technology for preparing acid liquor thickening agent for controlling pH value of reaction system |
| 03/27/2013 | CN102993359A Acid liquor thickener preparation technique based on control on monomer total concentration |
| 03/27/2013 | CN102993358A Acid liquor thickener preparation technique based on control on initiator type |
| 03/27/2013 | CN102993357A Preparation process of leak protection plugging agent along with drilling based on control of monomer concentration |
| 03/27/2013 | CN102993356A Preparation process of leak protection plugging agent along with drilling based on control of dosage of filling agent |
| 03/27/2013 | CN102993058A Preparation method and application of fluorine-containing benzamido sulfate anionic surfactant |
| 03/27/2013 | CN102464783B Water-soluble thermo-thickening copolymer, and preparation method and application thereof |
| 03/27/2013 | CN102382243B Amphiphilic polymer and application |
| 03/27/2013 | CN102277143B W/O/W type active viscous oil blocking agent used in oil well, and preparation method thereof |
| 03/27/2013 | CN102234502B Corrosion inhibitor and preparation method |
| 03/27/2013 | CN102108292B Crude oil viscosity-reducing and depressant composite |
| 03/27/2013 | CN102071005B High-temperature acidification corrosion inhibitor and preparation method thereof |
| 03/27/2013 | CN102031100B Temperature-resistant salt-resistant thickening agent and preparation method thereof |
| 03/27/2013 | CN102002350B Superhigh temperature water base drilling fluid |
| 03/27/2013 | CN101993686B Viscosity protective agent for sewage-prepared polymer solution |
| 03/27/2013 | CN101987955B Oil-soluble thick oil yield increasing and viscosity reducing agent and preparation |
| 03/27/2013 | CN101955770B Main acid for oil well drilling and multi-hydrogen acid acidulating system with main acid |
| 03/27/2013 | CN101955763B High pressure-resistant leak stoppage agent and leak stoppage slurry containing same |
| 03/27/2013 | CN101955564B Method for preparing high-temperature resistant and salt resistant tackifier for drilling fluid |
| 03/27/2013 | CN101691335B Carboxylic acid higher alcohol ester-trimethyl ammonium chloride and application thereof in clay stabilizer |
| 03/26/2013 | US8404623 Stabilization of emulsions containing resinous material for use in the field of oil or gas well treatments |
| 03/26/2013 | US8404622 Lost circulation material for oilfield use |
| 03/26/2013 | US8403045 Settable compositions comprising unexpanded perlite and methods of cementing in subterranean formations |
| 03/26/2013 | CA2704101C Bitumen anti-accretion additive |
| 03/26/2013 | CA2567092C Geosynthetic composite for borehole strengthening |
| 03/23/2013 | CA2790760A1 Pyromellitamide gelling agents |
| 03/21/2013 | WO2013040427A2 Methods of using oleaginous fluids for completion operations |
| 03/21/2013 | WO2013040313A2 Method of manufacture of guerbet alcohols for making surfactants used in petroleum industry operations |
| 03/21/2013 | WO2013040178A1 Surfactant responsive dispersion polymerized micro-gels |
| 03/21/2013 | WO2013040174A1 Surfactant responsive emulsion polymerized micro-gels |
| 03/21/2013 | WO2013040167A1 Surfactant responsive micro-gels |
| 03/21/2013 | WO2013039938A1 A water-based drilling fluid composition having a multifunctional mud additive for reducing fluid loss during drilling |
| 03/21/2013 | WO2013039620A1 Multifunctional boronic acid crosslinking agents and associated methods |
| 03/21/2013 | WO2013038100A1 Inhibitors of top-of-line corrosion of pipelines conveying crudes from extraction of hydrocarbons |
| 03/21/2013 | WO2012151524A3 Lignin production from lignocellulosic biomass |
| 03/21/2013 | WO2012027591A3 Articles and methods for reducing hydrate adhesion |
| 03/21/2013 | US20130072405 Water-soluble polymers for oil recovery |
| 03/21/2013 | US20130068530 System and method of clarifying drilling mud and a hydrophilic liquid or solution for use in clarifying drilling mud |
| 03/21/2013 | US20130068469 Pressurized Polymer Beads As Proppants |
| 03/21/2013 | US20130068460 Proppant |
| 03/21/2013 | US20130068459 Gravel pack carrier fluids |
| 03/21/2013 | US20130068456 Systems and methods for separating oil and/or gas mixtures |
| 03/21/2013 | US20130068312 Suspensions for enhanced oil recovery |
| 03/21/2013 | US20130067999 Method for Selection of Surfactants in Well Stimulation |
| 03/21/2013 | CA2848408A1 Methods of using oleaginous fluids for completion operations |
| 03/20/2013 | EP2569392A2 Degradable material for different oilfield applications |
| 03/20/2013 | EP2569391A1 High temperature polymer gels for well treatments and their use |
| 03/20/2013 | CN102977878A Vegetable gelatin fracturing fluid and preparation method thereof |
| 03/20/2013 | CN102977877A Drag reducer for shale gas fracture and preparation method of drag reducer |
| 03/20/2013 | CN102977876A Guar gum fracturing fluid with ultralow concentration and low-temperature coal-bed gas well fracturing method |
| 03/20/2013 | CN102977875A Oil-soluble filtrate reducer capable of rapidly dispersing in water base guanidine gum fracturing fluid, and preparation method thereof |
| 03/20/2013 | CN102977874A Thick oil emulsification viscosity reducer and preparation and use method thereof |
| 03/20/2013 | CN102977873A Method for preparing diamide glycine betaine surfactant for tertiary oil recovery and application thereof |
| 03/20/2013 | CN102977872A Enhanced foam oil-displacing agent for improving oil recovery rate in tertiary oil recovery, and preparation method thereof |
| 03/20/2013 | CN102977871A Annulus protection fluid |