| 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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| 06/08/2011 | CN201857948U Steam distributing, metering and regulating device of steam-injection branch well |
| 06/08/2011 | CN201857947U Non-casing-pressure, high-efficiency and heat-insulation steam injection string |
| 06/08/2011 | CN201857946U Novel pressure regulating device for electric testing and allocating of polymer flooding injection well |
| 06/08/2011 | CN201857945U Direct-reading type double-flow water quantity adjusting device |
| 06/08/2011 | CN201857944U Well completion sieve tube for thick oil horizontal well |
| 06/08/2011 | CN201857943U Completion sieve tube for a horizontal steam stimulation well of heavy oil |
| 06/08/2011 | CN201857942U Integrated tubular column capable of realizing layered sand prevention and layered oil production |
| 06/08/2011 | CN201857941U Anti-leakage and bottom water coning delay integrated string of horizontal well |
| 06/08/2011 | CN201857940U Intelligent intermittent oil pumping unit provided with frequency-conversion control device |
| 06/08/2011 | CN201857939U Extended-range type gear rack oil pumping unit |
| 06/08/2011 | CN201857932U Layered and integrated water distribution packer of horizontal well |
| 06/08/2011 | CN201857927U Dual-unsealing packer |
| 06/08/2011 | CN201857925U Packing device for thermal recovery |
| 06/08/2011 | CN201857902U Connection structure of vacuum insulated tubing |
| 06/08/2011 | CN1806088B Submarine workover assembly and manufacture method thereof |
| 06/08/2011 | CN1671944B Installation and use of removable heaters in a hydrocarbon containing formation |
| 06/08/2011 | CN102089495A Method for sealing off a water zone in a production well downhole and a sealing arrangement |
| 06/08/2011 | CN102089401A Micro-crosslinked gels and associated methods |
| 06/08/2011 | CN102086761A Vertical gear rack pumping unit driven by hydraulic motor |
| 06/08/2011 | CN102086760A Method for mining coalbed methane through regional underground high-pressure hydraulic drilling and pressure relief |
| 06/08/2011 | CN102086758A Integral-assembling type heat-insulating oil pipe connection structure |
| 06/08/2011 | CN102086391A Hydrophobic guar gum fracturing fluid and use method thereof |
| 06/08/2011 | CN102086390A Solidfree well killing fluid for acidic oil-gas reservoir |
| 06/08/2011 | CN101644156B Method for weakening coal-rock mass by hydraulic blasting and fracturing |
| 06/08/2011 | CN101550808B Soft blocking self-releasing technique of flexible rod string |
| 06/08/2011 | CN101270646B Water injection well down-hole water sound intelligent control regulating and measuring system |
| 06/08/2011 | CN101196109B Three-segment type block releasing technique for oil layer |
| 06/08/2011 | CN101086198B Method of creating a borehole in an earth formation |
| 06/08/2011 | CN101059071B Lifting weight balance beam type oil pump |
| 06/08/2011 | CA2688869A1 Electro-magnetic oil extraction |
| 06/07/2011 | US7957903 Gas trap for sampling fluid from a well |
| 06/07/2011 | US7956017 Aggregating reagents, modified particulate metal-oxides and proppants |
| 06/07/2011 | US7956016 Methods to control fluid loss in a well bore |
| 06/07/2011 | US7954551 System and method for thru tubing deepening of gas lift |
| 06/07/2011 | US7954550 Tubing pressure insensitive control system |
| 06/07/2011 | US7954548 Proppant for hydraulic fracturing of oil and gas wells |
| 06/07/2011 | US7954546 Subterranean screen with varying resistance to flow |
| 06/07/2011 | US7954545 Plunger lift system for well |
| 06/07/2011 | CA2722497A1 Solvent surveillance in solvent-based heavy oil recovery processes |
| 06/07/2011 | CA2531335C A method and device for separation of a fluid, in particular oil, gas and water |
| 06/07/2011 | CA2506321C Well treating process and system |
| 06/07/2011 | CA2503308C Method of dynamically controlling open hole pressure in a wellbore using wellhead pressure control |
| 06/07/2011 | CA2393818C Improved method and apparatus for repairing screens |
| 06/04/2011 | CA2722868A1 Phosphate ester oil gellant |
| 06/04/2011 | CA2693813A1 Hydraulically-actuated propellant stimulation downhole tool |
| 06/03/2011 | WO2011064544A2 Simulating subterranean fracture propagation |
| 06/03/2011 | WO2011064543A2 Refining information on subterranean fractures |
| 06/03/2011 | WO2011064542A2 Simulating injection treatments from multiple wells |
| 06/03/2011 | WO2011064541A2 Probabilistic earth model for subterranean fracture simulation |
| 06/03/2011 | WO2011064540A2 Probabilistic simulation of subterranean fracture propagation |
| 06/03/2011 | WO2011064375A2 System and method for increasing production capacity of oil, gas and water wells |
| 06/03/2011 | WO2011034695A3 Fracturing and gravel packing tool with multi movement wash pipe valve |
| 06/03/2011 | WO2011028676A3 Flow rate dependent flow control device |
| 06/03/2011 | WO2011028559A3 Fracturing and gravel packing tool with upper annulus isolation in a reverse position without closing a wash pipe valve |
| 06/03/2011 | WO2011023744A3 System and method for anchoring an expandable tubular to a borehole wall |
| 06/03/2011 | WO2011023743A3 System and method for anchoring an expandable tubular to a borehole wall |
| 06/03/2011 | WO2011023742A3 System and method for anchoring an expandable tubular to a borehole wall |
| 06/03/2011 | WO2011019989A3 Apparatus and method for passive fluid control in a wellbore |
| 06/03/2011 | WO2010109340A3 Method, apparatus and system for a supervisory system for carbon sequestration |
| 06/03/2011 | WO2009080711A3 Method for producing hydrocarbons through a well or well cluster of which the trajectory is optimized by a trajectory optimisation algorithm |
| 06/03/2011 | CA2782408A1 System and method for increasing production capacity of oil, gas and water wells |
| 06/03/2011 | CA2779804A1 Refining information on subterranean fractures |
| 06/03/2011 | CA2779741A1 Simulating subterranean fracture propagation |
| 06/03/2011 | CA2778408A1 Probabilistic simulation of subterranean fracture propagation |
| 06/03/2011 | CA2778326A1 Simulating injection treatments from multiple wells |
| 06/03/2011 | CA2778313A1 Probabilistic earth model for subterranean fracture simulation |
| 06/02/2011 | US20110127825 Traveling undercut solution mining systems and methods |
| 06/02/2011 | US20110127041 Riser weak link |
| 06/02/2011 | US20110127039 System, method, and apparatus for acid fracturing with scale inhibitor protection |
| 06/02/2011 | US20110127038 Method of hydraulically fracturing a formation |
| 06/02/2011 | US20110127037 Method and System for Methanol Production |
| 06/02/2011 | US20110127036 Method and apparatus for a downhole gas generator |
| 06/02/2011 | US20110127033 Single well dual/multiple horizontal fracture stimulation for oil production |
| 06/02/2011 | US20110127031 System and method for increasing production capacity of oil, gas and water wells |
| 06/02/2011 | US20110127028 Downhole Tool Delivery System With Self Activating Perforation Gun |
| 06/01/2011 | EP2326794A1 A offshore seabed to surface conduit transfer system |
| 06/01/2011 | EP2326792A2 Pressure relieving transition joint |
| 06/01/2011 | EP2326694A1 Improved fluid loss compositions and methods of use for subterranean operations |
| 06/01/2011 | CN201851100U Gas-injection-assisted water drainage and gas production unit |
| 06/01/2011 | CN201851099U Drop type priming device |
| 06/01/2011 | CN201851098U Perforation sand-control bullet and portable serial perforation sand-control device |
| 06/01/2011 | CN201851097U Self-cleaning sand control sieve tube |
| 06/01/2011 | CN201851096U Balance weight shifter of pumping unit |
| 06/01/2011 | CN201851095U Self-rotation jet drilling device |
| 06/01/2011 | CN201851094U Pumping unit head sheave folding and retracting mechanism |
| 06/01/2011 | CN201851093U Oil sucking machine adopting centralized lubrication |
| 06/01/2011 | CN201851092U Pumping unit with improved bracket assembly |
| 06/01/2011 | CN201851091U Beam-pumping unit |
| 06/01/2011 | CN201851090U Guide-rod type pumping unit without walking beam |
| 06/01/2011 | CN201851089U Eccentric balanced lifting device |
| 06/01/2011 | CN201851088U Annular pressure manual chemical agent adding device for oil well |
| 06/01/2011 | CN201851085U Hollowing and anti-scaling device of pipeline |
| 06/01/2011 | CN201851071U Multistage fracturing hole-sealing tool |
| 06/01/2011 | CN1950585B Deploying an assembly into a well |
| 06/01/2011 | CN1791731B Systems and methods using a continuously variable transmission to control one or more system components |
| 06/01/2011 | CN102084085A Wellbore system |
| 06/01/2011 | CN102083509A Fluid treatment apparatus |
| 06/01/2011 | CN102080537A Method and system for determining liquid-vapor interface between double horizontal SAGD (Steam Assisted Gravity Drainage) reservoir wells |
| 06/01/2011 | CN102080532A Flow-concentrating flowmeter for downhole steam measurement |
| 06/01/2011 | CN102080530A Method for constructing horizontal coal bed gas well and vertical drainage and mining well |