| 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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| 04/23/2013 | CA2626421C System and method for performing multiple downhole operations |
| 04/23/2013 | CA2619710C Hydrocyclone |
| 04/23/2013 | CA2573503C Method for terminating or reducing water flow in a subterranean formation |
| 04/23/2013 | CA2546040C Multi-purpose well bores and method for accessing a subterranean zone from the surface |
| 04/21/2013 | CA2791323A1 Steam assisted gravity drainage processes with the addition of oxygen addition |
| 04/20/2013 | CA2793419A1 Formulation and method of use for exploitation of heavy and extra heavy oil wells |
| 04/19/2013 | CA2755848A1 Insert assembly for downhole perforating apparatus |
| 04/18/2013 | WO2013055851A2 Hydraulic fracturing with proppant pulsing through clustered abrasive perforations |
| 04/18/2013 | WO2013055677A2 System for real-time monitoring and transmitting hydraulic fracture seismic events to surface using the pilot hole of the treatment well as the monitoring well |
| 04/18/2013 | WO2013055639A1 System and method for controlling flow through a sand screen |
| 04/18/2013 | WO2013055582A1 Hydraulically set resettable liner hanger |
| 04/18/2013 | WO2013055566A1 Vibration method to detect onset of gas lock |
| 04/18/2013 | WO2013055451A1 Fluid filtering device for a wellbore and method for completing a wellbore |
| 04/18/2013 | WO2013055381A2 Insensitive explosive composition and method of fracturing rock using an extrudable form of the composition |
| 04/18/2013 | WO2013055362A1 Well screen with extending filter |
| 04/18/2013 | WO2013053057A1 Wellbore actuators, treatment strings and methods |
| 04/18/2013 | WO2013053036A1 Use of oil-in-water emulsion for enhanced oil recovery |
| 04/18/2013 | WO2013053017A1 System and method for integrated enhanced oil recovery |
| 04/18/2013 | WO2013028329A3 Systems and methods for gravel packing wells |
| 04/18/2013 | WO2013010050A3 Low surface friction proppants |
| 04/18/2013 | WO2013006966A3 Method for the in situ recovery of heavy oil from a subterranean deposit |
| 04/18/2013 | WO2013003367A3 Air-freightable subsea well containment tooling package |
| 04/18/2013 | WO2013003009A3 Flow control screen assembly having remotely disabled reverse flow control capability |
| 04/18/2013 | WO2012136966A3 Injection device |
| 04/18/2013 | WO2012112823A4 Stage tool |
| 04/18/2013 | WO2012106642A3 Containment unit for marine hydrocarbons and method of using same |
| 04/18/2013 | WO2012078323A3 Enhanced oil recovery screening model |
| 04/18/2013 | WO2012052760A3 Fluid injection device |
| 04/18/2013 | WO2011120512A3 Method for removing an eccentric worm gear drive of a crude oil delivery pump and crude oil delivery pump |
| 04/18/2013 | US20130096899 Methods And Systems For Machine - Learning Based Simulation of Flow |
| 04/18/2013 | US20130096898 Methods and Systems For Machine - Learning Based Simulation of Flow |
| 04/18/2013 | US20130092633 Modular Device for Liquid/Liquid Gravity Separation |
| 04/18/2013 | US20130092399 Tools and methods for hanging and/or expanding liner strings |
| 04/18/2013 | US20130092397 Scalloped landing ring |
| 04/18/2013 | US20130092394 Well Screen with Extending Filter |
| 04/18/2013 | US20130092391 System and method for controlling flow through a sand screen |
| 04/18/2013 | US20130092389 Piping system having an insulated annulus |
| 04/18/2013 | US20130092377 Use of a chopper mechanism to add fibers to a well |
| 04/18/2013 | US20130092375 Liner wiper plug with bypass option |
| 04/18/2013 | US20130092374 Method of Treating A Formation Using Deformable Proppants |
| 04/18/2013 | US20130092373 System, apparatus and method for deliquefying produced fluids from a well |
| 04/18/2013 | US20130092370 Biomass-enhanced natural gas from coal formations |
| 04/18/2013 | US20130092369 Hydraulically Set Resettable Liner Hanger |
| 04/18/2013 | US20130092368 Diffuser/emulsifier for aquaculture applications |
| 04/18/2013 | CA2851794A1 Hydraulic fracturing with proppant pulsing through clustered abrasive perforations |
| 04/18/2013 | CA2851710A1 Wellbore actuators, treatment strings and methods |
| 04/18/2013 | CA2850007A1 Hydraulically set resettable liner hanger |
| 04/18/2013 | CA2849825A1 Method for real-time monitoring and transmitting hydraulic fracture seismic events to surface using the pilot hole of the treatment well as the monitoring well |
| 04/18/2013 | CA2849253A1 Fluid filtering device for a wellbore and method for completing a wellbore |
| 04/18/2013 | CA2849242A1 Well screen with extending filter |
| 04/17/2013 | EP2581551A2 Dual Flow Path Gas Lift Valve |
| 04/17/2013 | EP2580476A1 Extracting device having a connecting rod and method for controlling an extracting device having a connecting rod and at least one counterweight |
| 04/17/2013 | EP2580426A2 Perforating gun and method of perforating a well |
| 04/17/2013 | EP2580425A1 Wellbore screen with tracer for fluid detection |
| 04/17/2013 | EP2580424A1 Wellbore fluid treatment tubular and method |
| 04/17/2013 | EP2580423A2 Leakage containment system for run-away subsea wells |
| 04/17/2013 | CN202886915U Start-stop safety protection device of oil pumping unit control cabinet |
| 04/17/2013 | CN202883924U Energy-saving speed reducer for belt wheel |
| 04/17/2013 | CN202882907U Polymer injection well mouth decompressing and sampling integrated device |
| 04/17/2013 | CN202882875U Skid-mounted type high-pressure sand separating device for oil and gas well mouth test |
| 04/17/2013 | CN202882874U Automatic washing-away and discharging anti-theft filter |
| 04/17/2013 | CN202882873U Underground steam injection heat insulation compensation device |
| 04/17/2013 | CN202882872U Polymer molecular weight regulating device |
| 04/17/2013 | CN202882871U Injection feedback equipment aiming at microorganism oil-displacing plug removal agents |
| 04/17/2013 | CN202882870U Formula adjustment equipment aiming at microorganism oil-displacing plug removal agents |
| 04/17/2013 | CN202882869U Hollow water flow regulator free from throwing in and pulling |
| 04/17/2013 | CN202882868U Return-resistant and vomiting-resistant tool during water injection |
| 04/17/2013 | CN202882867U Oil well frequency conversion high-efficiency electromagnetism heating furnace |
| 04/17/2013 | CN202882866U Pressure pulse oil well production increase device |
| 04/17/2013 | CN202882865U Ignition system for perforating bullet |
| 04/17/2013 | CN202882864U Rotatable type tail pipe downward entering guiding shoe |
| 04/17/2013 | CN202882863U Novel sand prevention tube |
| 04/17/2013 | CN202882862U Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved |
| 04/17/2013 | CN202882861U Device for fast connecting and locking underwater joints |
| 04/17/2013 | CN202882860U Pulley-type oil-saving pumping unit |
| 04/17/2013 | CN202882859U Bent axle type multi-well combined pumping unit |
| 04/17/2013 | CN202882858U Elastic shear pin device |
| 04/17/2013 | CN202882857U Self-controlled oil well casing gas recovery device |
| 04/17/2013 | CN202882818U Self-seal-examining screen pipe hanger |
| 04/17/2013 | CN202881198U Integrated shale oil separation system |
| 04/17/2013 | CN202876686U Automatic stirring device aiming at microorganism oil displacement unplugging agent |
| 04/17/2013 | CN202876495U Wellhead filtration device of water injection well during low-permeability oilfield exploitation |
| 04/17/2013 | CN103052761A Automatic stage design of hydraulic fracture treatments using fracture height and in-situ stress |
| 04/17/2013 | CN103052431A 分离器组件 Separator assembly |
| 04/17/2013 | CN103046949A Bias gas-liquid two-phase jet-flow slotting permeability-increasing device and method |
| 04/17/2013 | CN103046948A Device and method for preventing coal drilling and cutting or gas emission |
| 04/17/2013 | CN103046917A Underground electric hydraulic control fracturing sliding sleeve |
| 04/17/2013 | CN103046916A Selective injection method of refracturing plugging agent for double parallel connection rock core |
| 04/17/2013 | CN103046915A Floating pneumatic plug valve device |
| 04/17/2013 | CN103046914A Hypotonic gas deposit horizontal well staged fracturing effect judging method |
| 04/17/2013 | CN103046913A Chemical viscosity reduction method for crude oil |
| 04/17/2013 | CN103046912A Novel crude oil viscosity reduction method |
| 04/17/2013 | CN103046911A Emulsification viscosity reduction process applied to ultra-thick mixed oil |
| 04/17/2013 | CN103046910A Oil deposit water-driving exploiting method of ultra-high water-containing period |
| 04/17/2013 | CN103046909A Water-adding viscosity-reducing device |
| 04/17/2013 | CN103046908A Concentric type exhausting and blending-light oil production pipe string of fire flooding effect reception well |
| 04/17/2013 | CN103046907A Sand preventing device |
| 04/17/2013 | CN103046906A Novel subsea manifold basic structure |
| 04/17/2013 | CN103046905A Energy-saving balance walking beam pumping unit |
| 04/17/2013 | CN103046904A Energy-saving tower-frame pumping unit |