| 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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| 03/28/2013 | WO2012162308A3 Select-fire stackable gun system |
| 03/28/2013 | WO2012047187A3 Gas hydrate conversion system for harvesting hydrocarbon hydrate deposits |
| 03/28/2013 | WO2012041926A3 Methods for storing carbon dioxide compositions in subterranean geological formations and an apparatus for carrying out the method |
| 03/28/2013 | WO2012025816A3 Device for drilling through a formation |
| 03/28/2013 | US20130075106 Electrical generator for a cementing manifold |
| 03/28/2013 | US20130075105 Hydraulically driven, down-hole jet pump |
| 03/28/2013 | US20130075103 Method and system for performing an electrically operated function with a running tool in a subsea wellhead |
| 03/28/2013 | US20130075102 Mobile offshore drilling unit |
| 03/28/2013 | US20130075100 Aggregating reagents and methods for making and using same |
| 03/28/2013 | US20130075099 Pulse Fracturing Devices and Methods |
| 03/28/2013 | US20130075098 Methods for treatment and use of produced water |
| 03/28/2013 | US20130075097 Borehole tool heat transfer altering system and method, and method of heating borehole fluid |
| 03/28/2013 | US20130075094 Cement Shoe and Method of Cementing Well with Open Hole Below the Shoe |
| 03/28/2013 | US20130075092 Process for dispersing nanocatalysts into petroleum-bearing formations |
| 03/28/2013 | US20130075090 Wellbore fluid treatment and method |
| 03/28/2013 | US20130075089 Method and system for providing temporary formation sealant |
| 03/28/2013 | US20130075087 Module For Use With Completion Equipment |
| 03/28/2013 | US20130075086 Using microseismic activity to facilitate hydrocarbon production in tight sand and shale reservoirs |
| 03/28/2013 | US20130075085 Use of glutamate for microbial enhanced oil recovery |
| 03/28/2013 | US20130075084 System and method for drilling multilateral wells using magnetic ranging while drilling |
| 03/28/2013 | US20130075081 Forming inclusions in selected azimuthal orientations from a casing section |
| 03/28/2013 | US20130075080 Adjustable fracturing system |
| 03/28/2013 | US20130075079 Frac head with sacrificial wash ring |
| 03/28/2013 | US20130074470 In-situ combustion recovery process using single horizontal well to produce oil and combustion gases to surface |
| 03/28/2013 | DE102010020753A1 Seal valve for oil drilling rig used in offshore construction work, has inflatable airbag that is secured in outer pipe and automatically blown up by compressed air tank operation to completely seal cavity between inner and outer pipes |
| 03/28/2013 | CA2849719A1 Adjustable fracturing system |
| 03/28/2013 | CA2849074A1 Gas lift assist for fossil fuel wells |
| 03/28/2013 | CA2848495A1 Spherical separation device and method for separation |
| 03/28/2013 | CA2847875A1 Dual purpose observation and production well |
| 03/28/2013 | CA2847699A1 A bottom hole assembly for deploying an expandable liner in a wellbore |
| 03/28/2013 | CA2846953A1 Hydrocarbon mobility and recovery through in-situ combustion with the addition of ammonia |
| 03/27/2013 | EP2573314A1 Guide funnel |
| 03/27/2013 | EP2572769A1 Eductor nozzle assembly |
| 03/27/2013 | EP2572073A1 Methods for increasing oil production |
| 03/27/2013 | EP2572072A2 Method for drilling through nuisance hydrocarbon bearing formations |
| 03/27/2013 | EP2571957A2 Increasing the viscosity of viscoelastic fluids |
| 03/27/2013 | CN202838052U Pipeline pressure control device |
| 03/27/2013 | CN202837952U Intelligent control device for non-beam pumping unit |
| 03/27/2013 | CN202833845U Adjustable downward barbell balancing device |
| 03/27/2013 | CN202833783U Portable brake device of pumping unit |
| 03/27/2013 | CN202833087U Self-help separated lubricating anti-eccentric-abrasion device of sucker rod pump well with high water content |
| 03/27/2013 | CN202832511U Locatable direct-reading type dual-flow water amount regulation device |
| 03/27/2013 | CN202832507U Mine gas-liquid separation pressure measurement device |
| 03/27/2013 | CN202832483U Thick oil solution gas drive encryption mining physical simulation experiment device |
| 03/27/2013 | CN202832472U Novel downhole gas anchor |
| 03/27/2013 | CN202832471U Series-connection type efficient gas anchor |
| 03/27/2013 | CN202832470U Crude oil gas-liquid separation process integrated equipment |
| 03/27/2013 | CN202832469U Three-phase separator taking nitrogen as dynamic gas source |
| 03/27/2013 | CN202832468U Portable pressure water replenishing device for metering separator |
| 03/27/2013 | CN202832467U Lengthways superimposed development double bed series oil deposit well network |
| 03/27/2013 | CN202832466U Lengthways superimposed development three bed series oil deposit well network |
| 03/27/2013 | CN202832465U Oil pipe dragging hydraulic jet fracture acidizing tool tubular column |
| 03/27/2013 | CN202832464U Coiled tubing hydraulic jet multistage acid fracturing tool pipe column |
| 03/27/2013 | CN202832463U Step pressure guiding layering fracturing pipe column |
| 03/27/2013 | CN202832462U Unblocking device capable of carrying out separate layer acid treatment and negative pressure acid discharge |
| 03/27/2013 | CN202832461U Ultrahigh pressure perforation |
| 03/27/2013 | CN202832460U Acidifying sand blower of horizontal well |
| 03/27/2013 | CN202832459U Low temperature gas fracturing device |
| 03/27/2013 | CN202832458U Deep hole coal seam spalling water injection hole sealing device |
| 03/27/2013 | CN202832457U Intelligent remote controlled underground fracturing pump set of coal mine |
| 03/27/2013 | CN202832456U Pressure reduction and yield increase device for natural gas well mouth |
| 03/27/2013 | CN202832455U Fireflood well gas-proof and oil recovery integrated tubular column |
| 03/27/2013 | CN202832454U Automatic-choosing ball-pitching and ball-receiving device |
| 03/27/2013 | CN202832453U Steam assisted gravity drainage (SAGD) producing well single tubing pumping process tubular column |
| 03/27/2013 | CN202832452U Treating fluid conveying equipment for steam drive injection well to inhibit oil layer to generate hydrogen sulfide |
| 03/27/2013 | CN202832451U Chemical medicine adding device of multifunctional drilling fluid |
| 03/27/2013 | CN202832450U Automatic rod throwing device for natural gas well foam draining |
| 03/27/2013 | CN202832449U Polymer flooding oil field on line profile control device |
| 03/27/2013 | CN202832448U Jet device with liquid |
| 03/27/2013 | CN202832447U Air-injection oil-extraction ground construction technology system |
| 03/27/2013 | CN202832446U Controller for mechanical and precise regulation of water injection rate |
| 03/27/2013 | CN202832445U Water injection device |
| 03/27/2013 | CN202832444U Lower guiding type eccentric water distributor |
| 03/27/2013 | CN202832443U Glass test piece used for simulating foam flooding |
| 03/27/2013 | CN202832442U Bridge type concentric intelligent measurement and allocation separate injection device |
| 03/27/2013 | CN202832441U Portable type oil-water well water blockage profile control device for low-permeability oil pool |
| 03/27/2013 | CN202832440U Bridge type integration concentric water distributor |
| 03/27/2013 | CN202832439U Oil filed in-layer subdivision water injection technology tubular column |
| 03/27/2013 | CN202832438U Deep well long-lasting separated layer water injection tubular column |
| 03/27/2013 | CN202832437U Adjustable consistent flow water distributor |
| 03/27/2013 | CN202832436U Directional well separate zone water injection ball-and-seat |
| 03/27/2013 | CN202832435U Production tubular column used for rhythm oil layer gravity gas drive |
| 03/27/2013 | CN202832434U Three-dimension adjustable type open-flow device used for wells |
| 03/27/2013 | CN202832433U Slip downhole restriction chock easy to salve |
| 03/27/2013 | CN202832432U Underground throttling pipe column for high sulfur-bearing gas well |
| 03/27/2013 | CN202832431U Constant production throttling production device under gas well |
| 03/27/2013 | CN202832430U Oil gas well full diameter perforation interlayer |
| 03/27/2013 | CN202832429U Inner directional composite perforator |
| 03/27/2013 | CN202832428U Composite perforator |
| 03/27/2013 | CN202832427U Air prevention and sand prevention device |
| 03/27/2013 | CN202832426U Impeller-type under-pit sand control screen pipe |
| 03/27/2013 | CN202832425U Screen pipe and oil and gas well opening ball-catching device using the same |
| 03/27/2013 | CN202832424U Operating platform of oil pumping unit rack |
| 03/27/2013 | CN202832423U Oil pumping unit |
| 03/27/2013 | CN202832422U Chain drive pumping unit |
| 03/27/2013 | CN202832421U Swabbing device |
| 03/27/2013 | CN202832420U Oil pumping unit |
| 03/27/2013 | CN202832419U Automatically adjusting balance pumping unit |
| 03/27/2013 | CN202832418U Screen pipe completion system |
| 03/27/2013 | CN202832417U Balance adjustment tool for oil sucking machine |