| 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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| 03/19/2013 | US8397816 System, method and apparatus for enhancing wellbore treatment fluid flexibility |
| 03/19/2013 | US8397814 Perforating string with bending shock de-coupler |
| 03/19/2013 | US8397812 Nano-sized particle-coated proppants for formation fines fixation in proppant packs |
| 03/19/2013 | US8397811 Gas boost pump and crossover in inverted shroud |
| 03/19/2013 | US8397807 Processing hydrocarbon materials |
| 03/19/2013 | US8397806 Method for pre-treatment of subterranean sites adjacent to water injection wells |
| 03/19/2013 | US8397805 Method for pre-treatment of subterranean sites adjacent to water injection wells |
| 03/19/2013 | US8397804 Expandable device for use in a well bore |
| 03/19/2013 | US8397800 Perforating string with longitudinal shock de-coupler |
| 03/19/2013 | CA2711773C Method of hydraulic fracturing of horizontal wells, resulting in increased production |
| 03/19/2013 | CA2710468C Reducing co2 emissions from oilfield diesel engines |
| 03/19/2013 | CA2690169C Automated field development planning |
| 03/19/2013 | CA2667156C Degradable material assisted diversion |
| 03/19/2013 | CA2611803C Well treatment fluid containing viscoelastic surfactant and viscosification activator |
| 03/19/2013 | CA2590193C Method and apparatus to deliver energy in a well system |
| 03/16/2013 | CA2789917A1 Method of oil extraction |
| 03/16/2013 | CA2789859A1 Gravel pack and sand disposal device |
| 03/15/2013 | CA2788934A1 Well pad placement |
| 03/14/2013 | WO2013036958A1 System and method for a slotted liner shoe extension |
| 03/14/2013 | WO2013036415A2 Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids |
| 03/14/2013 | WO2013036390A1 Swelling acceleration using inductively heated and embedded particles in a subterranean tool |
| 03/14/2013 | WO2013036327A1 Lithology and borehole condition independent methods for locating tagged proppant in induced subterranean formation fractures |
| 03/14/2013 | WO2013036317A1 Reducing sulfide in oil reservoir production fluids |
| 03/14/2013 | WO2013036316A1 Reducing sulfide in production fluids during oil recovery |
| 03/14/2013 | WO2013034574A1 Method for connecting a flexible line to a structure of a fluid exploitation installation and associated connection device |
| 03/14/2013 | WO2013034185A1 Autonomous valve with temperature responsive device |
| 03/14/2013 | WO2013034184A1 A method and an arrangement for controlling fluid flow into a production pipe |
| 03/14/2013 | WO2013033959A1 Oil pumping machine with gear reciprocating on rack |
| 03/14/2013 | WO2012161910A3 Window joint for lateral wellbore construction and method for opening same |
| 03/14/2013 | WO2012158489A3 Enhanced foam stability applications and methods |
| 03/14/2013 | WO2012149224A3 Expandable open-hole anchor |
| 03/14/2013 | WO2012143168A3 Method for extracting hydrocarbon compounds, especially crude oil, from underground oil sands deposits |
| 03/14/2013 | WO2012137068A3 Mobile, modular, electrically powered system for use in fracturing underground formations |
| 03/14/2013 | WO2012135756A3 Biomass-based oil field chemicals |
| 03/14/2013 | WO2012123461A3 Electrical and static fracturing of a reservoir |
| 03/14/2013 | WO2012002817A4 Valve assembly |
| 03/14/2013 | WO2011161179A3 Apparatus for collecting and transporting fluids in a body of water |
| 03/14/2013 | US20130062124 Drilling Apparatus Including a Fluid Bypass Device and Methods of Using Same |
| 03/14/2013 | US20130062078 Process for producing mineral oil from underground mineral oil deposits |
| 03/14/2013 | US20130062077 Methods and equipment to improve reliability of pinpoint stimulation operations |
| 03/14/2013 | US20130062070 System and Method of Liquefying a Heavy Oil Formation for Enhanced Hydrocarbon Production |
| 03/14/2013 | US20130062068 Use of Sensors Coated with Elastomer for Subterranean Operations |
| 03/14/2013 | US20130062067 Method of deploying nanoenhanced downhole article |
| 03/14/2013 | US20130062066 Multi-Zone Screened Fracturing System |
| 03/14/2013 | US20130062065 Indirect downhole steam generator with carbon dioxide capture |
| 03/14/2013 | US20130062064 Method and device for the "in-situ" transport of bitumen or extra-heavy oil |
| 03/14/2013 | US20130062063 Completing a multi-stage well |
| 03/14/2013 | US20130062060 Treatment for Recycling Fracture Water - Gas and Oil Recovery in Shale Deposits |
| 03/14/2013 | US20130062058 In situ combustion following sagd |
| 03/14/2013 | US20130062056 Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same |
| 03/14/2013 | US20130062055 Assembly and method for multi-zone fracture stimulation of a reservoir using autonomous tubular units |
| 03/14/2013 | US20130062054 Method for determining fracture spacing and well fracturing using the method |
| 03/14/2013 | US20130062050 Mating unit enabling the deployment of a modular electrically driven device in a well |
| 03/14/2013 | US20130061771 Active waveshaper for deep penetrating oil-field charges |
| 03/14/2013 | DE112011101647T5 Verhinderung oder Abschwächung von durch Verbrennungsgas hervorgerufener Stahlkorrosion Prevention or mitigation of induced combustion gas steel corrosion |
| 03/14/2013 | CA2848243A1 Autonomous valve with temperature responsive device |
| 03/14/2013 | CA2847844A1 Lithology and borehole condition independent methods for locating tagged proppant in induced subterranean formation fractures |
| 03/14/2013 | CA2847696A1 Swelling acceleration using inductively heated and embedded particles in a subterranean tool |
| 03/14/2013 | CA2847609A1 A method and an arrangement for controlling fluid flow into a production pipe |
| 03/14/2013 | CA2846805A1 Reducing sulfide in production fluids during oil recovery |
| 03/14/2013 | CA2845316A1 Reducing sulfide in oil reservoir production fluids |
| 03/13/2013 | EP2568111A1 Method and system for using heat obtained from a fossil fuel reservoir |
| 03/13/2013 | EP2567066A2 Gas hydrate conversion system for harvesting hydrocarbon hydrate deposits |
| 03/13/2013 | EP2567065A1 Systems and methods for producing oil and/or gas |
| 03/13/2013 | EP2567064A2 Sand production control through the use of magnetic forces |
| 03/13/2013 | EP2567063A1 Artifact reduction in method of iterative inversion of geophysical data |
| 03/13/2013 | EP2567062A2 Collecting tank, system comprising collecting tank and multi-phase pumps, and method for separating and dividing up a multi-phase mixture |
| 03/13/2013 | EP2567061A2 Method and apparatus for use with an inflow control device |
| 03/13/2013 | CN202790360U Belt tensioning adjustment device for beam pumping unit |
| 03/13/2013 | CN202790339U Main transmission speed reducer for long-stroke oil pumping unit |
| 03/13/2013 | CN202790307U Balancing block connection structure |
| 03/13/2013 | CN202790223U Braking anti-slip device for beam-pumping unit |
| 03/13/2013 | CN202790213U Oil pumping unit soft start coupler |
| 03/13/2013 | CN202788919U Mine drilling and cutting integrated outburst prevention and permeability increasing system |
| 03/13/2013 | CN202788834U Oil well sampling oil water separating barrel |
| 03/13/2013 | CN202788833U No-clean rapid separating sampler for wellhead |
| 03/13/2013 | CN202788803U Locating detent retraction and release device of water consumption measuring and adjusting instrument of oil field hollow water injection well |
| 03/13/2013 | CN202788800U Pressure water adding device of oil gauging separator |
| 03/13/2013 | CN202788793U Electric pump well lubricating nipple filter device |
| 03/13/2013 | CN202788792U Oilfield horizontal-type three-phase separation device |
| 03/13/2013 | CN202788791U Hydropower spin cutting head |
| 03/13/2013 | CN202788790U Sand-discharging type hydraulic oil extraction device |
| 03/13/2013 | CN202788789U Heat-sensitive casing pipe thermal stress compensator |
| 03/13/2013 | CN202788788U Oil and liquid mixer |
| 03/13/2013 | CN202788787U Profile control string using nitrogen and foam gel |
| 03/13/2013 | CN202788786U Auto-compensating type water injection adjusting device |
| 03/13/2013 | CN202788785U Thin and thick oil purified water mixed injection type closed tank-free electric regulating valve double-control water injection device |
| 03/13/2013 | CN202788784U Air pressure oil extraction and pressure stabilization device |
| 03/13/2013 | CN202788783U Top portion air injection gravity auxiliary drive oil extraction two dimension physical simulation experiment system |
| 03/13/2013 | CN202788782U High pressure outcrop plane model experiment system |
| 03/13/2013 | CN202788781U Oil nozzle switch used for adjusting oil well flow |
| 03/13/2013 | CN202788780U Closed impact exploder |
| 03/13/2013 | CN202788779U High-hole-density perforation sand-controlling device |
| 03/13/2013 | CN202788778U Cleanable tube column for sand-preventing sieve tube |
| 03/13/2013 | CN202788777U Fluid filter device |
| 03/13/2013 | CN202788776U Downhole linear pumping unit |
| 03/13/2013 | CN202788775U Oil field oil pumping machine balancing piece regulating device |
| 03/13/2013 | CN202788774U Variable-frequency oil extraction device for oil well |
| 03/13/2013 | CN202788773U Self-casting-and-fishing rapid drain pump of oil-water well |
| 03/13/2013 | CN202788772U Flexible oil sleeve contactor |