| 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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| 05/23/2012 | CN202228040U Pipe string for separate-zone production of thin oil |
| 05/23/2012 | CN202228009U Adjusting device for beam hanger of oil pumping machine |
| 05/23/2012 | CN102472095A 强化油采收的系统和方法 Strengthen the system and method of oil recovery |
| 05/23/2012 | CN102472094A Method and apparatus for downhole gas generator |
| 05/23/2012 | CN102472093A 基于流体特性以由此可变地阻止地下井中的流动的流路控制 Based on variable fluid properties to thereby prevent the flow of underground wells flow path control |
| 05/23/2012 | CN102472092A Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well |
| 05/23/2012 | CN102472091A 具有一个或更多个可收回型元件的流动控制装置 Having one or more flow recoverable type element control means |
| 05/23/2012 | CN102472090A 利用包含一系列三维元件的过滤介质控制固体流入井眼的设备和方法 The use of three-dimensional element contains a series of filter media control apparatus and method for solid inflows wellbore |
| 05/23/2012 | CN102472089A 用于间歇气举的系统和方法 System and method for intermittent gas lift |
| 05/23/2012 | CN102472088A 油井完井方法 Well completion method |
| 05/23/2012 | CN102465698A 一种检测压裂和注水效果及其优势方向的装置和方法 An apparatus and method for fracturing and water effects and advantages of direction detection |
| 05/23/2012 | CN102465695A 一种煤层气井的监控方法和装置 Monitoring method and apparatus for coalbed methane wells |
| 05/23/2012 | CN102465693A Underground coal gasification bored well body structure and construction method thereof |
| 05/23/2012 | CN102465692A Method for obtaining fuel air region shape in real time in coal underground gasification process |
| 05/23/2012 | CN102465691A 油页岩就地干馏开采方法及其模拟实验系统 Situ retorting of oil shale mining methods and simulation systems |
| 05/23/2012 | CN102465690A 油井三相超长大功率加热管 Long-power three-phase oil heating pipe |
| 05/23/2012 | CN102465689A 油田超长密封三相大功率加热装置 Long-power three-phase airtight oil heating device |
| 05/23/2012 | CN102465688A 用于提高高温高盐油藏三次采油采收率的驱油方法 Used to improve the high-temperature and high salinity reservoir flooding EOR recovery methods |
| 05/23/2012 | CN102465687A 信号发送器 Signal transmitter |
| 05/23/2012 | CN102465686A 新型塔式抽油机的滚动移机装置 Scroll new tower pumping device moves |
| 05/23/2012 | CN102464977A 用于提高高温高盐油藏采收率的驱油方法 Improve the high temperature and high salinity reservoir recovery method for flooding |
| 05/23/2012 | CN101876240B Fully automatic oil extraction equipment |
| 05/23/2012 | CN101806204B Straight slit trapezoidal self-cleaning screen pipe |
| 05/23/2012 | CN101684726B Three-upright-post oil sucking machine of compound permanent magnet motor and method for manufacturing same |
| 05/23/2012 | CN101619652B Selective flow string |
| 05/23/2012 | CN101555780B Self-operated drop instillator |
| 05/23/2012 | CN101545470B Ground hydraulic augmented injection pump |
| 05/23/2012 | CN101463718B Same-well production technique column for low-permeation horizontal well |
| 05/23/2012 | CN101451428B Vacuum and pneumatic double dynamic multi-well pumping well system device |
| 05/23/2012 | CN101451062B Biological oil displacement agent and production method and use thereof |
| 05/23/2012 | CN101446188B Single upper seal sand blasting perforation fracturing technology |
| 05/23/2012 | CN101440704B Ground-dipping ore bed continuous high-energy gas fracturing seepage increasing method and specific high-energy gas generator |
| 05/23/2012 | CN101382059B Rotary foundation support arm crank bidirectional balancing double-well pumping unit |
| 05/23/2012 | CN101319605B Multi-zone production rate regulating column tool for oil-submersible electric pump well and its multi-zone production rate regulating method |
| 05/23/2012 | CN101235709B Petroleum engineering circulating gas regeneration method and its special equipment |
| 05/22/2012 | US8183186 Cement-based particulates and methods of use |
| 05/22/2012 | US8183185 Well servicing fluid comprising an organic salt being the product of an organic acid and an organic amine base and method of servicing a well with the fluid |
| 05/22/2012 | US8183183 Method of treating a wellbore at high temperature in contact with carbon dioxide |
| 05/22/2012 | US8183181 Oil field treatment fluids comprising zwitterionic betaine-group-containing polymers |
| 05/22/2012 | US8183179 System, method, and apparatus for acid fracturing with scale inhibitor protection |
| 05/22/2012 | US8181718 Perforating gun gravitational orientation system |
| 05/22/2012 | US8181706 Plunger lift |
| 05/22/2012 | US8181703 Method useful for controlling fluid loss in subterranean formations |
| 05/22/2012 | US8181702 Application of degradable fibers in invert emulsion fluids for fluid loss control |
| 05/22/2012 | US8181699 Auxiliary conduit cutting apparatus |
| 05/22/2012 | US8181698 Multi-function multi-hole drilling rig |
| 05/22/2012 | US8181697 Multi-function multi-hole drilling rig |
| 05/22/2012 | CA2680355C Method and apparatus for controlling the manufacture of well treatment fluid |
| 05/22/2012 | CA2676999C Silicate-based wellbore fluid and methods for stabilizing unconsolidated formations |
| 05/22/2012 | CA2668387C In situ recovery from a tar sands formation |
| 05/22/2012 | CA2668385C In situ recovery from a tar sands formation |
| 05/22/2012 | CA2547853C High-strength sealed connection for expandable tubulars |
| 05/22/2012 | CA2524689C Thermal processes for subsurface formations |
| 05/19/2012 | CA2721886A1 Liquid circulating pump for oil well heating |
| 05/18/2012 | WO2012064946A2 Magnetically coupled actuation apparatus and method |
| 05/18/2012 | WO2012064582A1 Methods to enhance the productivity of a well |
| 05/18/2012 | WO2012064576A1 Methods to deliver fluids on a well site with variable solids concentration from solid slurries |
| 05/18/2012 | WO2012064389A1 Tool and method for placement of a component into a well |
| 05/18/2012 | WO2012064356A1 Method and apparatus for wellbore perforation |
| 05/18/2012 | WO2012064330A1 Milling well casing using electromagnetic pulse |
| 05/18/2012 | WO2012064213A1 Method to enhance fiber bridging |
| 05/18/2012 | WO2012064212A1 Methods for servicing subterranean wells |
| 05/18/2012 | WO2012064211A1 Methods for servicing subterranean wells |
| 05/18/2012 | WO2012064210A1 Methods for servicing subterranean wells |
| 05/18/2012 | WO2012062693A1 Subsea anchor |
| 05/18/2012 | WO2012062592A1 System and method for extraction of a gas from a gas-hydrate deposit |
| 05/18/2012 | WO2012062264A2 Device for capturing and conducting away liquids and/or gases escaping from a bed of a body of water |
| 05/18/2012 | WO2012033638A3 Series configured variable flow restrictors for use in a subtrerranean well |
| 05/18/2012 | WO2011132056A3 Process for reducing the viscosity of heavy crude oils |
| 05/18/2012 | WO2011107732A3 Fracturing a stress-altered subterranean formation |
| 05/18/2012 | CA2817724A1 Method and apparatus for wellbore perforation |
| 05/18/2012 | CA2816695A1 Methods to enhance the productivity of a well |
| 05/18/2012 | CA2815701A1 Method to enhance fiber bridging |
| 05/18/2012 | CA2815688A1 Methods for servicing subterranean wells |
| 05/18/2012 | CA2815687A1 Methods for servicing subterranean wells |
| 05/18/2012 | CA2815180A1 Milling well casing using electromagnetic pulse |
| 05/17/2012 | US20120121523 Compositions having hase rheology modifiers |
| 05/17/2012 | US20120118879 Method for extracting hydrocarbons by in-situ electromagnetic heating of an underground formation |
| 05/17/2012 | US20120118645 Methods using well drilling fluids having clay control properties |
| 05/17/2012 | US20120118586 Device and method for sequestering a substance |
| 05/17/2012 | US20120118575 Thermally Stable Scale Inhibitor Compositions |
| 05/17/2012 | US20120118574 Composition and method for producing an ultra-lightweight ceramic proppant |
| 05/17/2012 | US20120118573 Fracturing with Telescoping Members and Sealing the Annular Space |
| 05/17/2012 | US20120118572 Methods of limiting leak off and damage in hydraulic fractures |
| 05/17/2012 | US20120118570 Device for a Downhole Apparatus for Machining of Casings and Also a Method of Depositing Machined Shavings |
| 05/17/2012 | US20120118569 Oxygen Scavenger Compositions for Completion Brines |
| 05/17/2012 | US20120118568 Method and apparatus for wellbore perforation |
| 05/17/2012 | US20120118567 Method and Apparatus for Maintaining Pressure In Well Cementing During Curing |
| 05/17/2012 | US20120118566 Non-hydraulic fracturing systems, methods, and processes |
| 05/17/2012 | US20120118565 Effective Solvent Extraction System Incorporating Electromagnetic Heating |
| 05/17/2012 | US20120118562 System, apparatus and method for abrasive jet fluid cutting |
| 05/17/2012 | US20120118557 Methods and Devices for One Trip Plugging and Perforating of Oil and Gas Wells |
| 05/17/2012 | US20120117967 System and method for extracting energy |
| 05/16/2012 | EP2453106A1 Method for characterising the network of fractures of a fractured deposit and method for exploiting same |
| 05/16/2012 | EP2453105A1 Well completion method |
| 05/16/2012 | EP2453104A1 Downhole device |
| 05/16/2012 | EP2452041A2 Methods for treating a wellbore |
| 05/16/2012 | EP2452040A2 A down hole well tool provided with a piston |
| 05/16/2012 | EP2197975B1 Installation for enhanced oil recovery using water-soluble polymers, method implementing same |
| 05/16/2012 | CN202221618U Vertical-well steam-injection well pattern data acquisition device |