| 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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| 07/10/2013 | CN103195468A System process for conducting efficient strengthened extraction in surrounding rock |
| 07/10/2013 | CN103195466A Directional water pressure blasting method for improving coal bed gas permeability |
| 07/10/2013 | CN103195417A Experiment device and method for stimulating current-limiting and sectional fracturing of horizontal well |
| 07/10/2013 | CN103195404A Zero leakage drain valve for natural gas with vertically-installed sealing pair |
| 07/10/2013 | CN103195403A High-capacity anti-pollution sand blower |
| 07/10/2013 | CN103195402A Staged fracturing system and staged fracturing method of coal-bed gas well |
| 07/10/2013 | CN103195401A Coal reservoir yield increasing transforming experiment device under stratum conditions |
| 07/10/2013 | CN103195400A Method for establishing efficient displacement pressure system for low permeability reservoir |
| 07/10/2013 | CN103195399A Single-pressure double-valve electrical-control joint exploitation pipe column and controlling method |
| 07/10/2013 | CN103195398A Whole-walking-beam self-balancing device |
| 07/10/2013 | CN103195397A Mechanical jack type hydraulic double-well oil pumping machine |
| 07/10/2013 | CN103195396A Full-automatic walking beam rail sliding balancing device |
| 07/10/2013 | CN103195395A Torque-conversion type energy-saving pumping unit |
| 07/10/2013 | CN103194201A Binary composite flooding system and application thereof |
| 07/10/2013 | CN102311727B Temperature-resistant phenolic resin sand control agent and preparation method and application thereof |
| 07/10/2013 | CN102199422B Fracturing propping agent, preparation method thereof, and deep well fracturing method |
| 07/10/2013 | CN102153994B High-temperature miscible phase temporary plugging and sealing agent and preparation method thereof |
| 07/10/2013 | CN102071879B Novel prestressed heat-insulation oil pipe |
| 07/10/2013 | CN102022101B Multi-stage perforating pressurizing device |
| 07/10/2013 | CN101988380B Method for constructing oil reservoir oil displacement microbial community to improve crude oil recovery ratio |
| 07/10/2013 | CN101984216B Energy-saving pumping unit |
| 07/10/2013 | CN101878348B Apparatus for adjustably controlling the inflow of production fluids from a subterranean well |
| 07/10/2013 | CN101839123B Exploitation method for wax precipitation oil reservoir |
| 07/10/2013 | CA2801547A1 Method and device for zonal isolation and management of recovery of horizontal well drained reserves |
| 07/10/2013 | CA2801165A1 Methods and apparatus for downhole extraction and analysis of heavy oil |
| 07/09/2013 | US8484004 Systems and methods for improved positioning of pads |
| 07/09/2013 | US8479843 System for drilling a wellbore |
| 07/09/2013 | US8479834 Integrated enhanced oil recovery process |
| 07/09/2013 | US8479833 Integrated enhanced oil recovery process |
| 07/09/2013 | US8479816 Method of improving the conductivity of a fracture in the space between proppant pillars |
| 07/09/2013 | US8479815 Desalination subsurface feedwater supply and brine disposal |
| 07/09/2013 | US8479814 Zero emission liquid fuel production by oxygen injection |
| 07/09/2013 | US8479813 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 07/09/2013 | US8479812 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 07/09/2013 | US8479810 Downhole apparatus |
| 07/09/2013 | CA2736804C Pressure relieving transition joint |
| 07/09/2013 | CA2735449C Isolating tubing |
| 07/09/2013 | CA2716802C Phase-controlled well flow control and associated methods |
| 07/09/2013 | CA2694260C Method and apparatus for monitoring offshore contamination |
| 07/09/2013 | CA2576785C Multi-well controller |
| 07/09/2013 | CA2562461C Method of treating oil and gas wells |
| 07/06/2013 | CA2797526A1 Downhole apparatus for treating wellbore components, and method for treating a wellbore |
| 07/04/2013 | WO2013101599A1 Method of producing oil |
| 07/04/2013 | WO2013101581A1 Inter-tool communication flow control in toolbus system of cable telemetry |
| 07/04/2013 | WO2013101572A2 Method of fracturing while drilling |
| 07/04/2013 | WO2013101520A1 Enhanced oil recovery methods for producing oil from heavy oil fields |
| 07/04/2013 | WO2013101500A1 Process, method, and system for removing heavy metals from fluids |
| 07/04/2013 | WO2013098193A1 Method and system for enhancing oil recovery (eor) by injecting treated water into an oil bearing formation |
| 07/04/2013 | WO2013070979A3 Low profile rod pumping unit with pneumatic counterbalance for the active control of the rod string |
| 07/04/2013 | WO2013065032A3 Method for extracting individual components from a gas mixture and device for the implementation thereof |
| 07/04/2013 | WO2013042128A3 System and method for simultaneous and segregated oil and gas production from multiple zone wells |
| 07/04/2013 | WO2013036132A3 An integrated system for offshore industrial activities with fume injection |
| 07/04/2013 | WO2013023972A3 Method and bead tube for treating ground bores |
| 07/04/2013 | WO2013017529A3 Method for extending a network of existing fractures |
| 07/04/2013 | WO2013004495A3 Closure apparatus for a defective blowout preventer |
| 07/04/2013 | WO2012149104A3 Methods of establishing and/or maintaining flow of hydrocarbons during subsea operations |
| 07/04/2013 | WO2012149095A3 Apparatus and methods for use in establishing and/or maintaining controlled flow of hydrocarbons during subsea operations |
| 07/04/2013 | WO2012100165A8 Οn-board recovery and storage of c02 from motor vehicle exhaust gases |
| 07/04/2013 | WO2012076520A3 Riser top connector |
| 07/04/2013 | US20130171048 Solution mining of ore containing sodium carbonate and bicarbonate |
| 07/04/2013 | US20130168099 Wellbore frac tool with inflow control |
| 07/04/2013 | US20130168098 Apparatus and Method for Fracturing a Well |
| 07/04/2013 | US20130168097 Method and system for enhancing oil recovery (eor) by injecting treated water into an oil bearing formation |
| 07/04/2013 | US20130168096 Additive to Fluid for The Treatment of Subterranean Formation and A Method for Treating Subterranean Formation |
| 07/04/2013 | US20130168095 Iodide stabilizer for viscosified fluid containing iron |
| 07/04/2013 | US20130168094 Enhanced heavy oil recovery using downhole bitumen upgrading with steam assisted gravity drainage |
| 07/04/2013 | US20130168093 Apparatus and method for oil sand exploitation |
| 07/04/2013 | US20130168090 Apparatus and method for fluid treatment of a well |
| 07/04/2013 | US20130168089 Method for producing oil |
| 07/04/2013 | US20130168086 Pressure balancing proppant addition method and apparatus |
| 07/04/2013 | US20130168082 Method and system for treating a subterranean formation using diversion |
| 07/04/2013 | US20130168079 Construction articles and methods of forming same |
| 07/04/2013 | US20130168077 Hydraulically-Actuated Propellant Stimulation Downhole Tool |
| 07/04/2013 | CA2858100A1 Real-time dynamic data validation apparatus, system, program code, computer readable medium, and methods for intelligent fields |
| 07/03/2013 | EP2610431A1 System and method for performing multiple downhole operations |
| 07/03/2013 | EP2610429A2 Downhole isolation methods and apparatus therefor |
| 07/03/2013 | EP2609287A1 A method and apparatus for removing liquid from a gas producing well |
| 07/03/2013 | EP2609286A1 Variable flow restrictor for use in a subterranean well |
| 07/03/2013 | EP2609038A1 A contaminant control system in an evaporative water treating system |
| 07/03/2013 | CN203035821U Pumping unit braking jackscrew free of being locked by tool |
| 07/03/2013 | CN203035178U Pumping well sand setting gas anchor |
| 07/03/2013 | CN203035177U Coalbed methane (CBM) multi-branch horizontal well with communicating point in top plate or bottom plate rock stratum |
| 07/03/2013 | CN203035176U Negative pressure flowback converter |
| 07/03/2013 | CN203035175U Oilfield exploitation fracturing machine unit |
| 07/03/2013 | CN203035174U Oilfield gas well fracturing ball receiving device |
| 07/03/2013 | CN203035173U Mechanical blender blending drugs under pump |
| 07/03/2013 | CN203035172U Underground water volume adjusting device |
| 07/03/2013 | CN203035171U Intelligent skid-mounted water injection station used for oilfield water injection |
| 07/03/2013 | CN203035170U Lengthened oil nozzle for electric pump well |
| 07/03/2013 | CN203035169U Downhole fixed-type bypass restrictor |
| 07/03/2013 | CN203035168U Operation monitoring device of beam-pumping unit |
| 07/03/2013 | CN203035167U Double-acting walking beam type oil pumping device |
| 07/03/2013 | CN203035166U Hydraulic balance energy-saving oil pumping machine |
| 07/03/2013 | CN203035165U Anti-falling emergency brake |
| 07/03/2013 | CN203035102U Open hole horizontal well segmentation multi-cluster even acidification tubular column |
| 07/03/2013 | CN203035094U Water jet flow kerf induced spraying device in drill hole |
| 07/03/2013 | CN103189601A Method and apparatus for dynamic, variable-pressure, customizable, membrane-based water treatment for use in improved hydrocarbon recovery operations |
| 07/03/2013 | CN103189600A Subsea pig handler |
| 07/03/2013 | CN103189599A Prevention of biomass aggregation at injection wells |
| 07/03/2013 | CN103189598A Reduced profile abrasion resistant pump thrust bearing |