| 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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| 06/19/2013 | CA2762444A1 Solvent extraction of bitumen using heat from combustion of product cleaning streams |
| 06/18/2013 | US8464798 Plunger for performing artificial lift of well fluids |
| 06/18/2013 | US8464796 Fluid resistivity measurement tool |
| 06/18/2013 | US8464794 Wellbore laser operations |
| 06/18/2013 | US8464792 Conduction convection reflux retorting process |
| 06/18/2013 | US8464789 Process for enhanced production of heavy oil using microwaves |
| 06/18/2013 | US8464785 Pipe guide arms for blind shear rams |
| 06/18/2013 | US8464784 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/18/2013 | US8464759 Series configured variable flow restrictors for use in a subterranean well |
| 06/18/2013 | CA2751186C Zero emission steam generation process |
| 06/18/2013 | CA2706359C Spherical sand separators |
| 06/18/2013 | CA2693813C Hydraulically-actuated propellant stimulation downhole tool |
| 06/18/2013 | CA2693433C A method and apparatus for subterranean fracturing |
| 06/18/2013 | CA2635816C Downhole linear actuation apparatus and method |
| 06/18/2013 | CA2617891C System for cyclic injection and production from a well |
| 06/18/2013 | CA2593418C Completion with telescoping perforation & fracturing tool |
| 06/18/2013 | CA2564515C Temperature limited heaters used to heat subsurface formations |
| 06/18/2013 | CA2563585C Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 06/18/2013 | CA2563583C Temperature limited heaters used to heat subsurface formations |
| 06/16/2013 | CA2762451A1 Method and system for lifting fluids from a reservoir |
| 06/16/2013 | CA2762448A1 Improving recovery from a hydrocarbon reservoir |
| 06/16/2013 | CA2762439A1 Improving recovery from a hydrocarbon reservoir |
| 06/15/2013 | CA2762502A1 Methods and compositions for reducing permeability of a subterranean formation |
| 06/15/2013 | CA2762457A1 Slickwater fracturing fluid |
| 06/15/2013 | CA2762450A1 Insulating open tanks for fracking and the like |
| 06/14/2013 | CA2796723A1 Clean solar energy to enhance oil and gas location separator recovery |
| 06/13/2013 | WO2013086278A2 Method and acidizing tool for deep acid stimulation using ultrasound |
| 06/13/2013 | WO2013085995A1 System and method for producing homogenized oilfield gels |
| 06/13/2013 | WO2013085665A1 Ball seat milling and re-fracturing method |
| 06/13/2013 | WO2013085496A1 Bidirectional downhole fluid flow control system and method |
| 06/13/2013 | WO2013085410A1 Well treatment |
| 06/13/2013 | WO2013085380A1 Method and system for capturing hydrocarbons from a leaking oilwell at a predetermined seabed location |
| 06/13/2013 | WO2013033306A9 Well emergency separation tool for use in separating a tubular element |
| 06/13/2013 | WO2012177442A4 Coatings for welbore tools, components having such coatings, and related methods |
| 06/13/2013 | WO2012107827A3 Cutting unit of a hydromecanical slot perforator |
| 06/13/2013 | WO2012080724A3 Connection apparatus and methods |
| 06/13/2013 | US20130146536 Water and oil separation system |
| 06/13/2013 | US20130146306 Casing hanger lockdown with conical lockdown ring |
| 06/13/2013 | US20130146302 Controlled electrolytic degredation of downhole tools |
| 06/13/2013 | US20130146301 Subsea structure flowline connector assembly |
| 06/13/2013 | US20130146300 In situ transfer and support of tensioned system and method for a flexible link |
| 06/13/2013 | US20130146294 Method for Controlling Loss of Drilling Fluid |
| 06/13/2013 | US20130146293 Methods for Unconventional Gas Reservoir Stimulation With Stress Unloading For Enhancing Fracture Network Connectivity |
| 06/13/2013 | US20130146292 Heterogeneous proppant placement in a fracture with removable extrametrical material fill |
| 06/13/2013 | US20130146291 Ball Seat Milling and Re-fracturing Method |
| 06/13/2013 | US20130146290 Selective placement of conformance treatments in multi-zone well completions |
| 06/13/2013 | US20130146288 Method and apparatus to increase recovery of hydrocarbons |
| 06/13/2013 | US20130146287 Composite perforation method and device with propping agent |
| 06/13/2013 | US20130146285 Process and well arrangement for hydrocarbon recovery from bypassed pay or a region near the reservoir base |
| 06/13/2013 | US20130146284 Staggered horizontal well oil recovery process |
| 06/13/2013 | US20130146283 Oil recovery process using crossed hortizonal wells |
| 06/13/2013 | US20130146281 Method and Acidizing Tool for Deep Acid Stimulation Using Ultrasound |
| 06/13/2013 | US20130146280 Microbial enhanced oil recovery process for heavy oil accumulations |
| 06/13/2013 | US20130146279 System and method for borehole communication |
| 06/13/2013 | US20130145924 Structure for gunpowder charge in combined fracturing perforation device |
| 06/13/2013 | CA2858151A1 System and method for producing homogenized oilfield gels |
| 06/13/2013 | CA2858088A1 Method and acidizing tool for deep acid stimulation using ultrasound |
| 06/13/2013 | CA2857125A1 Ball seat milling and re-fracturing method |
| 06/13/2013 | CA2850725A1 Bidirectional downhole fluid flow control system and method |
| 06/12/2013 | EP2602426A1 Liquid guiding and collection process with secondary channels for in situ leaching |
| 06/12/2013 | EP2602425A1 Process for in-situ leaching by liquid injection |
| 06/12/2013 | EP2601377A1 Apparatus and method for testing multiple samples |
| 06/12/2013 | EP2601376A1 Methods and arrangements for carbon dioxide storage in subterranean geological formations |
| 06/12/2013 | CN202997984U Frequency changer KNKF energy-saving system of oil field pumping unit |
| 06/12/2013 | CN202995960U Oil well alarm device based on computer control |
| 06/12/2013 | CN202995400U Oil field water flooding intelligent monitoring system |
| 06/12/2013 | CN202992088U Energy-saving system of pumping unit |
| 06/12/2013 | CN202991024U Multiphase flow logger by full flow collecting dynamic interface tracking method |
| 06/12/2013 | CN202991004U Separating, delivering and classifying device for coal, gas and water drilled from coal bed |
| 06/12/2013 | CN202991003U Strongly-magnetic spiral turbulence high-frequency impulse paraffin control viscosity reduction device |
| 06/12/2013 | CN202991002U Shale gas output increasing equipment |
| 06/12/2013 | CN202991001U Steam injection device |
| 06/12/2013 | CN202991000U Horizontal well top end steam injection device |
| 06/12/2013 | CN202990999U Thermal insulation connecting hoop of pipe column of heat-isolated oil pipe |
| 06/12/2013 | CN202990998U Multifunctional dosing device |
| 06/12/2013 | CN202990997U Direct current power supply type remote control medicine adding system with solar heater |
| 06/12/2013 | CN202990996U Natural gas cluster well site alternating current power supply type remote control drug adding system |
| 06/12/2013 | CN202990995U Natural gas well mouth chemical feed system |
| 06/12/2013 | CN202990994U Gasser shaft collar with chemical feed pipeline |
| 06/12/2013 | CN202990993U Natural gas cluster well site direct current power supply type remote control drug adding system |
| 06/12/2013 | CN202990992U Alternating current power supply type remote control chemical feed system with solar heater |
| 06/12/2013 | CN202990991U Strong magnetic helical turbulent high-frequency pulse unblocking augmented injection device |
| 06/12/2013 | CN202990990U Integral combined valve type dual-pipe oil and gas recovery wellhead device |
| 06/12/2013 | CN202990989U Oil and gas well pressure priming device with small diameter of 38 millimeters |
| 06/12/2013 | CN202990988U Double-chain oil pumping unit |
| 06/12/2013 | CN202990987U Adjustable blowout oil nozzle of heavy oil well |
| 06/12/2013 | CN202990986U Broad-belt oil pumping unit |
| 06/12/2013 | CN202990985U Flywheel energy storage oil pumping machine |
| 06/12/2013 | CN202990984U Wind power direct drive oil pumping unit |
| 06/12/2013 | CN202990983U Reciprocating type oil pumping unit |
| 06/12/2013 | CN202990982U Oil pumping unit |
| 06/12/2013 | CN202990981U Direct-drive-type belt pumping unit |
| 06/12/2013 | CN202990980U Intelligent control system of pumping unit |
| 06/12/2013 | CN202990979U Load board connecting device for oil pumping unit |
| 06/12/2013 | CN202990978U Stroke-changing non-walking-beam pumping unit |
| 06/12/2013 | CN202990977U Tower-type double cylinder push-pull hydraulic long stroke pumping unit |
| 06/12/2013 | CN202990964U Continuous ball throwing device for multistage fracturing |
| 06/12/2013 | CN202990941U Combined sealing, double-barrelled gas injection and remote control well head equipment |
| 06/12/2013 | CN202990898U Easily-disassembled water swivel for drilling machine |
| 06/12/2013 | CN202990889U Coating vacuum heat-insulating oil pipe |