| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 04/16/2014 | CN203547670U Stop device for directive wheel pedestal of oil pumping unit |
| 04/16/2014 | CN203547669U Oil pumping unit of compound type permanent magnet novel synchronous disc motor |
| 04/16/2014 | CN203547659U Large drift diameter switch controller |
| 04/16/2014 | CN203547612U Strong magnetic control synchronous ball injector |
| 04/16/2014 | CN203547587U Twisting prevention device for hair braids of pumping unit |
| 04/16/2014 | CN203547565U Thermal production well oil pipe device, thermal power compensation device and elongation control device |
| 04/16/2014 | CN203547520U Tower type built-in crawling ladder of oil pumping unit |
| 04/16/2014 | CN103732857A Apparatus and method for operating a subsea compression system |
| 04/16/2014 | CN103732856A Electromagnetic heat treatment providing enhanced oil recovery |
| 04/16/2014 | CN103732855A Water self-shutoff tubular |
| 04/16/2014 | CN103732854A Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system |
| 04/16/2014 | CN103732853A Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate |
| 04/16/2014 | CN103732849A Disconnecting tool |
| 04/16/2014 | CN103728995A Pipeline pressure control device |
| 04/16/2014 | CN103726823A Layered and balanced medium entering system and method of parallel multiphase separation equipment |
| 04/16/2014 | CN103726822A Three-phase separation device of oil, water and gas |
| 04/16/2014 | CN103726821A Acid fracturing liquid continuous blending supply device |
| 04/16/2014 | CN103726820A Geothermal pulse pressure wave fracturing system and method |
| 04/16/2014 | CN103726819A Method of low-temperature gas-assisted coalbed methane fracturing technology |
| 04/16/2014 | CN103726818A Underground gasification ignition method |
| 04/16/2014 | CN103726817A Method and device for exploiting natural gas hydrates by means of microwave technique |
| 04/16/2014 | CN103726816A Single-main-pipe multi-well water distribution system for oil field |
| 04/16/2014 | CN103726815A CO2 flooding extraction well shaft flow state determining and parameter optimizing method |
| 04/16/2014 | CN103726814A Automatic flow adjusting spray pipe type inflow control device |
| 04/16/2014 | CN103726813A Well completion structure and method for building packer in packing ring outside oil gas well filter tubing string |
| 04/16/2014 | CN103726812A Sand-washing, filling and sand-preventing integrated tubular column |
| 04/16/2014 | CN103726811A Petroleum well pipe filling construction process |
| 04/16/2014 | CN103726810A Modularized eccentric crank and offset adjusting device thereof |
| 04/16/2014 | CN103726809A Anti-drop emergency brake |
| 04/16/2014 | CN103726797A Direct-transmission type oil pumping unit bottom connector and oil pumping device using bottom connector |
| 04/16/2014 | CN103725274A High-pressure-resistant controllable degradation chemical molding fluid bridge plug as well as preparation method and application thereof |
| 04/16/2014 | CN103060245B Compound microorganism bacterium agent of biological coalbed methane prepared by coal bed organic impurities and application thereof |
| 04/16/2014 | CN102734604B Intelligent intermission bailing type beam pumping unit outer cover lifting hole and rain-proof device |
| 04/16/2014 | CN102493796B Physical excitation and three-phase separation pre-separation current stabilizing and water distributing machine for well injection water |
| 04/16/2014 | CN102454395B Oil film displacement characteristic simulation device and system |
| 04/16/2014 | CN102345454B Fracturing fluid jet mixer |
| 04/16/2014 | CN102209835B Heater and method for recovering hydrocarbons from underground deposits |
| 04/16/2014 | CN102168544B Method for surface modification and transmission increase of coal reservoirs by using chlorine dioxide |
| 04/16/2014 | CN102146784B Novel ignition structure |
| 04/16/2014 | CN102119053B Storing device for stored substance and method for storing stored substance |
| 04/16/2014 | CN102094616B Method for separating flocculent organic matters from polymer-containing oil sludge |
| 04/16/2014 | CN101994502B Method of continuous dissolution of polyacrylamide emulsions for enhanced oil recovery (eor) |
| 04/15/2014 | US8700371 System and method for controlling an advancing fluid front of a reservoir |
| 04/15/2014 | US8697612 Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate |
| 04/15/2014 | US8697610 Well treatment with complexed metal crosslinkers |
| 04/15/2014 | US8697609 Methods of using fluid loss additives comprising micro gels |
| 04/15/2014 | US8695730 System and method for drilling multilateral wells using magnetic ranging while drilling |
| 04/15/2014 | US8695718 Dispersion compositions with nonionic surfactants for use in petroleum recovery |
| 04/15/2014 | US8695708 Method for treating subterranean formation with degradable material |
| 04/15/2014 | US8695707 Asphaltene removal composition and methods |
| 04/15/2014 | US8695706 Apparatus and device for delivering fluid downhole and increasing well production |
| 04/15/2014 | US8695704 Controlled release breaker composition for oil field applications |
| 04/15/2014 | US8695700 Seal with enhanced nose ring |
| 04/15/2014 | US8695695 Downhole tool with pumpable section |
| 04/15/2014 | US8695692 Downhole condition alert system for a drill operator |
| 04/15/2014 | CA2829725A1 Method for launching replacement balls |
| 04/15/2014 | CA2774100C Use of foam shaper memory polymer to transport acid or other wellbore treatments |
| 04/15/2014 | CA2771064C Method and apparatus for moving a high pressure fluid aperture in a well bore servicing tool |
| 04/15/2014 | CA2642523C Kerogen extraction from subterranean oil shale resources |
| 04/15/2014 | CA2625450C Methods of fracturing formations using quaternary amine salts as viscosifiers |
| 04/15/2014 | CA2606218C In situ conversion process systems utilizing wellbores in at least two regions of a formation |
| 04/15/2014 | CA2552327C Method for selective extraction of natural gas liquids from "rich" natural gas |
| 04/12/2014 | CA2828736A1 Method for hydrocarbon recovery using a water changing or driving agent with rf heating |
| 04/10/2014 | WO2014055763A1 Detection of well fluid contamination in sealed fluids of well pump assemblies |
| 04/10/2014 | WO2014055339A1 New method and arrangement for feeding chemicals into a hydrofracturing process and oil and gas applications |
| 04/10/2014 | WO2014055309A1 Compositions and methods for preventing emulsion formation |
| 04/10/2014 | WO2014055273A1 Method for enhancing fracture propagation in subterranean formations |
| 04/10/2014 | WO2014055225A1 Biodegradable chelant for surfactant formulation |
| 04/10/2014 | WO2014055175A1 Em and combustion stimulation of heavy oil |
| 04/10/2014 | WO2014055158A1 Salt-tolerant anionic surfactant compositions for enhanced oil recovery (eor) applications |
| 04/10/2014 | WO2014055074A1 Downhole flow control using perforator and membrane |
| 04/10/2014 | WO2014053912A1 Method for treating carbonate reservoirs |
| 04/10/2014 | WO2014053358A2 Hydraulic fracturing process and corresponding equipment |
| 04/10/2014 | WO2014053349A2 Hydraulic fracturing device and process |
| 04/10/2014 | WO2014053283A1 Tubular element with inclined sealing lips and process for applying it to the wall of a well |
| 04/10/2014 | WO2014053200A1 A containment system and a method for using said containment system. |
| 04/10/2014 | WO2014053199A1 A containment system and a method for using said containment system |
| 04/10/2014 | WO2014053056A1 Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas |
| 04/10/2014 | WO2014053043A1 Improved hydraulic fracturing process for deviated wellbores |
| 04/10/2014 | WO2014016067A3 Device and method for extracting carbonaceous substances from oil sand |
| 04/10/2014 | WO2014015050A3 Adjustable isolation sleeve assembly for well stimulation through production tubing |
| 04/10/2014 | WO2014015036A3 High pressure isolation system for well stimulation through production tubing |
| 04/10/2014 | WO2013192399A3 Treating a subterranean formation with a mortar slurry |
| 04/10/2014 | WO2013166359A3 Seal stem |
| 04/10/2014 | WO2013135600A3 Subsea flow splitting arrangement |
| 04/10/2014 | WO2013124625A3 Improved gas lift system for oil production |
| 04/10/2014 | WO2013124338A3 Method and system for providing fuel gas to a topside facility |
| 04/10/2014 | WO2013116094A3 Limited depth abrasive jet cutter |
| 04/10/2014 | WO2013096378A3 System and method of fracturing while drilling |
| 04/10/2014 | WO2013096361A3 Inflatable packer element for use with a drill bit sub |
| 04/10/2014 | WO2013043477A3 Through tubing pumping system with automatically deployable and retractable seal |
| 04/10/2014 | WO2013030555A9 Determining perforation orientation |
| 04/10/2014 | US20140099084 Downhole Wellbore Heating System and Method |
| 04/10/2014 | US20140097664 Device for non-entry mining |
| 04/10/2014 | US20140096974 Mobile, Modular, Electrically Powered System For Use in Fracturing Underground Formations Using Liquid Petroleum Gas |
| 04/10/2014 | US20140096971 New method and arrangement for feeding chemicals into a hydrofracturing process and oil and gas applications |
| 04/10/2014 | US20140096970 Multi-zone fracturing and sand control completion system and method thereof |
| 04/10/2014 | US20140096969 Compositions and methods for preventing emulsion formation |
| 04/10/2014 | US20140096968 Complex Fracturing Using a Straddle Packer in a Horizontal Wellbore |
| 04/10/2014 | US20140096967 Salt-tolerant anionic surfactant compositions for enhanced oil recovery (eor) applications |