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