| 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) |
|---|
| 06/05/2013 | CN102220119B Oil displacing method for reservoirs with high temperature and salinity |
| 06/05/2013 | CN102218282B Dual-carboxylate gemini surfactant resistant to high temperature and high salt and preparation method thereof |
| 06/05/2013 | CN102191027B High-temperature-resistant dispersed fluid loss agent for oil well cement and preparation method thereof |
| 06/05/2013 | CN102031099B Foaming agent for highly mineralized water containing barium-strontium ions and gas condensate and preparation method thereof |
| 06/05/2013 | CN102010706B Low-speed corrosion inhibitor |
| 06/05/2013 | CN101979457B Seawater-based solid phase-free environment-friendly drilling and completion fluid |
| 06/05/2013 | CN101914373B Horizontal well biology yield increasing solution |
| 06/05/2013 | CN101892171B Complex microbial agent, preparation method thereof and application thereof in improving yield of crude oil |
| 06/05/2013 | CN101845296B Salt-resistant shear-resistant deep-sea bacterium exopolysaccharide oil displacement system |
| 06/05/2013 | CN101805599B Crosslinked polycation oil displacement agent and preparation method thereof |
| 06/05/2013 | CN101805597B Solid corrosion and scale inhibitor for oil field |
| 06/05/2013 | CN101781551B Bio-enzyme well completion fluid |
| 06/05/2013 | CN101735115B Salt resistance and calcium resistant deep extra-heavy oil emulsifier and viscosity dropping agent |
| 06/05/2013 | CN101531893B Functional resin tectorial membrane proppant and preparation method thereof |
| 06/05/2013 | CN101326258B Solvent free fluidized polymer suspensions for oilfield servicing fluids |
| 06/05/2013 | CN101205195B Method for producing acetone cyanhydrin and the subsequent products thereof by specific cooling |
| 06/04/2013 | US8455405 Solvent for extracting bitumen from oil sands |
| 06/04/2013 | US8455404 Treatment fluids with improved shale inhibition and methods of use in subterranean operations |
| 06/04/2013 | US8455402 Wellbore operations using controlled variable density fluid |
| 06/04/2013 | US8453735 Method and biodegradable water based thinner composition for drilling subterranean boreholes with aqueous based drilling fluid |
| 06/04/2013 | US8453733 Method to control driving fluid breakthrough during production of hydrocarbons from a subterranean reservoir |
| 06/04/2013 | CA2560553C Methods of making cement compositions using liquid additives containing lightweight beads |
| 05/30/2013 | WO2013078374A1 Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar sands |
| 05/30/2013 | WO2013078369A1 Synthetic sweet spots in tight formations by injection of nano encapsulated reactants |
| 05/30/2013 | WO2013078306A1 Tight gas stimulation by in-situ nitrogen generation |
| 05/30/2013 | WO2013078166A1 Dual-phase acid-based fracturing composition with corrosion inhibitors and method of use thereof |
| 05/30/2013 | WO2013078031A1 Method of using controlled release tracers |
| 05/30/2013 | WO2013076424A1 Poly(n-alkyl acrylate) polymers and use thereof as oil pour point depressants |
| 05/30/2013 | WO2013076006A1 Derivatives of tris(2-hydroxyphenyl)methanes, the production thereof and use thereof for oil production |
| 05/30/2013 | WO2013046146A3 Hostile environment stable compositions and drilling and fracturing fluids containing same |
| 05/30/2013 | WO2013012704A4 Electrically conductive oil-base fluids for oil and gas applications |
| 05/30/2013 | WO2012117228A3 Radiation-induced thickening for set-on-command sealant compositions and methods of use |
| 05/30/2013 | WO2012117227A3 Radiation-induced thickening and radiation-induced triggering for set-on-command sealent compositions and methods of use |
| 05/30/2013 | US20130137611 Additive composition for well treatment fluids |
| 05/30/2013 | US20130137610 Dual-Functional Breaker for Hybrid Fluids of Viscoelastic Surfactant and Polymer |
| 05/30/2013 | US20130137609 Aphron-containing fracturing fluid |
| 05/30/2013 | US20130137608 Methods of Removing Deposits of Oil and Gas Applications |
| 05/30/2013 | US20130133888 Aqueous gels for well bore strengthening |
| 05/30/2013 | CA2856401A1 Dissipative surfactant aqueous-based drilling system for use in hydrocarbon recovery operations from heavy oil and tar sands |
| 05/30/2013 | CA2856220A1 Dual-phase acid-based fracturing composition with corrosion inhibitors and method of use thereof |
| 05/30/2013 | CA2855741A1 Synthetic sweet spots in tight formations by injection of nano encapsulated reactants |
| 05/30/2013 | CA2855730A1 Tight gas stimulation by in-situ nitrogen generation |
| 05/30/2013 | CA2854236A1 Derivatives of tris(2-hydroxyphenyl)methanes, preparation thereof and use thereof for mineral oil production |
| 05/30/2013 | CA2852295A1 Method of using controlled release tracers |
| 05/29/2013 | EP2597126A2 Method of inhibiting salt precipitation from aqueous streams |
| 05/29/2013 | EP2596208A1 Oil recovery process for carbonate reservoirs |
| 05/29/2013 | EP2596077A1 A proppant |
| 05/29/2013 | EP2596076A2 Real-time field friction reduction meter and method of use |
| 05/29/2013 | EP2596075A1 Cement compositions with a high-density additive of silicon carbide or sintered bauxite |
| 05/29/2013 | EP2596074A1 Drilling fluid composition |
| 05/29/2013 | EP2596073A1 Method and biodegradable water based thinner composition for drilling subterranean boreholes with aqueous based drilling fluid |
| 05/29/2013 | CN1500177B Hydraulic fracturing fluid composition, its preparation method and method for producing underground rock fracture |
| 05/29/2013 | CN103122344A Process for producing gel-breaking bio-enzyme by fed-batch fermentation |
| 05/29/2013 | CN103122242A Preparation method and application of surfactant for oil recovery |
| 05/29/2013 | CN102702424B Zwitterionic polymer, preparation method of zwitterionic polymer and application in hydrochloric acid-base fracturing fluid |
| 05/29/2013 | CN102391848B Water-soluble tracing polymer oil displacement agent and preparation method thereof |
| 05/29/2013 | CN102367462B Method for preparing micromolecular guar gum for fracturing through enzymatic degradation |
| 05/29/2013 | CN102352233B Low-harm micro-molecular guar gum fracturing fluid |
| 05/29/2013 | CN102250600B Composite block remover for removing polymer blockage of oilfields |
| 05/29/2013 | CN102140338B Fluorocarbon surfactant binary composite foam flooding system |
| 05/29/2013 | CN102040994B Haloduric sulfamic-acid-type amphoteric surfactant composite system and application thereof in tertiary oil recovery |
| 05/29/2013 | CN101974316B Drilling fluid for drilling |
| 05/29/2013 | CN101974315B Perforating fluid for well completion |
| 05/29/2013 | CN101903491B Fracturing fluid compositions comprising solid epoxy particles and methods of use |
| 05/29/2013 | CN101679846B Procedures and compositions for reservoir protection |
| 05/28/2013 | US8450391 Weighted elastomers, cement compositions comprising weighted elastomers, and methods of use |
| 05/28/2013 | US8450252 High temperature fracturing fluids and methods |
| 05/28/2013 | US8450251 Drag reduction of asphaltenic crude oils |
| 05/28/2013 | US8450250 Drag reduction of asphaltenic crude oils |
| 05/28/2013 | US8450248 Viscosifying polysaccharide, sparingly soluble borate-based mineral and metal sequestering agent |
| 05/28/2013 | US8448706 Delivery of particulate material below ground |
| 05/28/2013 | CA2759743A1 Additive composition for well treatment fluids |
| 05/28/2013 | CA2759728A1 Aphron-containing fracturing fluid |
| 05/28/2013 | CA2751907C Composition and method for producing an ultra-lightweight ceramic proppant |
| 05/28/2013 | CA2715149C Polymeric microspheres as degradable fluid loss additives in oilfield applications |
| 05/28/2013 | CA2642257C Zirconium cross-linking composition and methods of use |
| 05/28/2013 | CA2479402C An alcohol acidizing composition for treating a well to increase production |
| 05/28/2013 | CA2461524C Method of sealing subterranean zones |
| 05/23/2013 | WO2013074318A1 Metallic particle activated oxidative breaking method and system |
| 05/23/2013 | WO2013074317A1 Mono- and polyenoic acid and metal particle mixtures for breaking ves-gelled fluids |
| 05/23/2013 | WO2013074217A1 Well treatment methods using gellable treatment fluids having long term thermal stability of the gelled state |
| 05/23/2013 | US20130130950 Hydrogen bonding material for oilfield application |
| 05/23/2013 | US20130130948 Metallic particle activated oxidative breaking method and system |
| 05/23/2013 | US20130130947 Method for impairing fluid flow in subterranean formations |
| 05/23/2013 | US20130130946 Stabilization of emulsions containing resinous material for use in the field of oil or gas well treatments |
| 05/23/2013 | US20130130945 Drilling Fluids Having Reduced Sag Potential and Related Methods |
| 05/23/2013 | US20130130944 Ultra High Viscosity Pill and Methods for Use with an Oil-Based Drilling System |
| 05/23/2013 | US20130130943 Mono- and polyenoic acid and metal particle mixtures for breaking ves-gelled fluids |
| 05/23/2013 | US20130130942 Dissipative Surfactant Aqueous-Based Drilling System for Use in Hydrocarbon Recovery Operations from Heavy Oil and Tar Sands |
| 05/23/2013 | US20130130941 Lubricity Agents to Increase Pump Efficiency in Hydrate Inhibitor Applications |
| 05/23/2013 | US20130126243 Drilling fluid and method for drilling a wellbore |
| 05/23/2013 | US20130126176 Dual-Phase Acid-Based Fracturing Composition With Corrosion Inhibitors and Method of Use Thereof |
| 05/23/2013 | US20130126175 Synthetic Sweet Spots in Tight Formations by Injection of Nano Encapsulated Reactants |
| 05/23/2013 | US20130126169 Tight Gas Stimulation by In-Situ Nitrogen Generation |
| 05/23/2013 | US20130126161 Elastomer-modified crosslinked epoxy vinyl ester particles and methods for making and using the same |
| 05/23/2013 | US20130126160 Crosslinked epoxy vinyl ester particles and methods for making and using the same |
| 05/23/2013 | CA2852889A1 Well treatment methods using gellable treatment fluids having long term thermal stability of the gelled state |
| 05/22/2013 | EP2594620A1 Compositions and methods for servicing subterranean wells |
| 05/22/2013 | EP2593635A2 Low density cementitious compositions using limestone |
| 05/22/2013 | EP2593524A1 Treatment fluids comprising vitrified shale and methods of using such fluids in subterranean formations |