Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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12/19/2013 | WO2013187877A1 Shunt tube connection and distribution assembly and method |
12/19/2013 | WO2013186283A2 Light well intervention umbilical and flying lead management system and related methods |
12/19/2013 | WO2013185227A1 Rotating flow control diverter having dual stripper elements |
12/19/2013 | WO2013083980A3 Wireline pressure control apparatus |
12/19/2013 | WO2012171042A8 Expandable seal with conforming ribs |
12/19/2013 | US20130333901 Downhole seal element of changing elongation properties |
12/19/2013 | US20130333897 Diverter cover assembly and methods of use |
12/19/2013 | US20130333875 Plugging device |
12/19/2013 | CA2876373A1 Shunt tube connection and distribution assembly and method |
12/19/2013 | CA2876067A1 Rotating flow control diverter having dual stripper elements |
12/18/2013 | EP2674568A1 Monitoring environmental conditions of an underwater installation |
12/18/2013 | EP2673469A1 Method and tool for evaluating a geological formation |
12/18/2013 | EP2673460A2 Completion assembly |
12/18/2013 | EP2673457A1 Device for a valve |
12/18/2013 | EP2540956B1 Blowout preventer and well intervention tool |
12/18/2013 | EP2452040B1 A down hole well tool provided with a piston |
12/18/2013 | EP2221450B1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
12/18/2013 | CN203347834U Hole packer |
12/18/2013 | CN203347754U Well mouth hydraulic compensation device of sucker rod |
12/18/2013 | CN203347745U Self-sealing well washing device |
12/18/2013 | CN203347741U Soft film type hole sealing device |
12/18/2013 | CN203347740U Drilled hole sealing slurry returning device |
12/18/2013 | CN203347739U Under pressure well plug-injection type packer |
12/18/2013 | CN203347738U Anti-blocking large channel backwashing packer |
12/18/2013 | CN203347737U 可变形封隔器 Deformable packer |
12/18/2013 | CN203347736U Water-injection packer capable of being subjected to deblocking step by step |
12/18/2013 | CN203347735U Self-checking and self-sealing releasing packer |
12/18/2013 | CN203347734U Drilling machine for mine production |
12/18/2013 | CN203347733U Oil leakage packer |
12/18/2013 | CN203347732U Well mouth blowout preventing device and well mouth pitching device |
12/18/2013 | CN203347731U Anti-theft screwed plug for oil-water wells |
12/18/2013 | CN203347730U Straight buckle thread sealing device |
12/18/2013 | CN203347729U Directly-buckled thread sealing device |
12/18/2013 | CN203347728U Sealing device of oil pumping polish rod of pumping well |
12/18/2013 | CN203347727U Flexible no-leakage pressurizing well head device |
12/18/2013 | CN203347726U Well mouth deflection regulator |
12/18/2013 | CN203347725U Lubricating and sealing device of oil pumping polish rod |
12/18/2013 | CN203343976U Device for replacing high-pressure packing |
12/18/2013 | CN103459767A Apparatus and method for completing wells using slurry containing a shape-memory material particles |
12/18/2013 | CN103459766A Drillable slip with non-continuous outer diameter |
12/18/2013 | CN103459765A Borehole metal member bonding system and method |
12/18/2013 | CN103459764A Blow out preventer |
12/18/2013 | CN103452526A Electro-hydraulic bridge plug setting device |
12/18/2013 | CN103452525A Gas pumping fixing occluder and use method thereof |
12/18/2013 | CN103452524A Electrically-flushable packer and electrically-flushable insert seal for flooding well |
12/18/2013 | CN103452523A Technical method for packing complex stratum through elastic sleeve |
12/18/2013 | CN103452522A Gas pumping sleeve-penetrating occluder and use method thereof |
12/18/2013 | CN103452521A Release for petroleum drilling |
12/18/2013 | CN103452520A Double-material bag for sealing coal mine gas extraction holes |
12/18/2013 | CN103452519A Double-bag sealing device for gas drainage holes |
12/18/2013 | CN103452518A Core shaft type sealed oil pipe shoes |
12/18/2013 | CN103452517A Annular seal assembly of multi-stage metal sealing structure |
12/18/2013 | CN103452516A Lifting four-way part for deep sea oil field wellhead device |
12/18/2013 | CN103452515A Wellhead bimetal seal assembly |
12/18/2013 | CN103452497A Tubing head of drilling equipment for offshore oil field |
12/18/2013 | CN103104216B Air pressure self-balancing check valve |
12/18/2013 | CN102678080B Double-stage lifting oil-water well snubbing operation device |
12/17/2013 | US8609595 Methods for determining reactive index for cement kiln dust, associated compositions, and methods of use |
12/17/2013 | US8608405 Methods for disposing of produced water recovered during hydrocarbon drilling, production or related operations |
12/17/2013 | US8607895 Drilling fluid additive for reducing lost circulation in a drilling operation |
12/17/2013 | US8607883 Swellable packer having thermal compensation |
12/17/2013 | US8607859 Method of drilling and running casing in large diameter wellbore |
12/17/2013 | US8607811 Injection valve with indexing mechanism |
12/14/2013 | CA2780110A1 Drilling rig spill containment lease pre treatment |
12/12/2013 | WO2013185083A2 Ground heat exchange processes and equipment |
12/12/2013 | WO2013184610A1 Continuous multi-stage well stimulation system |
12/12/2013 | WO2013184302A1 Wellbore isolation while placing valves on production |
12/12/2013 | WO2013184185A1 Methods of removing a wellbore isolation device using galvanic corrosion |
12/12/2013 | WO2013184147A1 Swellable packer with enhanced anchoring and/or sealing capability |
12/12/2013 | WO2013026776A3 Subsea module pressure control |
12/12/2013 | WO2012170152A3 Subsea pressure relief devices and methods |
12/12/2013 | US20130332079 Monitoring environmental conditions of an underwater installation |
12/12/2013 | US20130327727 Apparatus and Method for Fluid Separation |
12/12/2013 | US20130327532 Remote Operation of Cementing Head |
12/12/2013 | US20130327517 Pin-less composite sleeve or coupling to composite mandrel or shaft connections |
12/12/2013 | US20130327516 Actuation and Release Tool for Subterranean Tools |
12/11/2013 | EP2670943A1 Tool and method to plug and abandon a well |
12/11/2013 | EP2670942A1 Method and wellbore system |
12/11/2013 | EP2670941A1 System for lining a wellbore |
12/11/2013 | EP2670940A1 Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation |
12/11/2013 | EP2670939A2 Blowout preventer translating shaft locking system |
12/11/2013 | EP2670938A2 Blowout preventer seal and method of using same |
12/11/2013 | EP2670937A1 Method and device for extending at least the lifetime of a christmas tree or an umbilical |
12/11/2013 | CN203335028U 弹簧式自动灌浆阀 Automatic filling valve spring |
12/11/2013 | CN203335021U Shear-pin-type automatic grouting valve |
12/11/2013 | CN203335020U Pressure bearing type grouting hole packer with pulp returning prevention device |
12/11/2013 | CN203335019U Alloy steel head float shoe |
12/11/2013 | CN203335018U Tube inside grouting device after bottom wall is sealed |
12/11/2013 | CN203335017U Long-distance under-pressure hole sealing structure for gas extraction drill hole |
12/11/2013 | CN203335016U Pressure bearing type grouting hole packer with pulp returning prevention device |
12/11/2013 | CN203335015U Gas drainage coal seam water injection air-bag type hole sealing device |
12/11/2013 | CN203335014U Drill hole spraying prevention device with drill rod ejection and drain functions |
12/11/2013 | CN203335013U Top-drive blowout preventer switch for drilling machine |
12/11/2013 | CN203335012U Liquid seal type screw pump direct-drive wellhead sealing device |
12/11/2013 | CN203335011U Pumping well deflection prevention Christmas tree three-way pipe |
12/11/2013 | CN203335010U Wellhead protecting device |
12/11/2013 | CN203335009U Wellhead firing-free device |
12/11/2013 | CN203334957U Waterpower expansion recyclable whipstock for underground coal mine directional drilling |
12/11/2013 | CN103443392A Bore protector |
12/11/2013 | CN103437737A Method for water plugging for petroleum well with oil phase microparticle plugging agent |