Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
12/2012
12/27/2012US20120325484 Integrated zonal contact and intelligent completion system
12/27/2012US20120325479 Coiled tubing bottom hole assembly with packer and anchor assembly
12/27/2012US20120325478 Cement Compositions and Methods of Using the Same
12/27/2012US20120325477 Settable Compositions Comprising Unexpanded Perlite and Methods of Cementing in Subterranean Formations
12/27/2012US20120325476 Sealant Compositions Comprising Cement Kiln Dust and Tire-Rubber Particles and Methods of Use
12/27/2012US20120325475 Cementing tool
12/27/2012US20120325466 Fracturing port locator and isolation tool
12/27/2012CA2840177A1 Cementing tool
12/27/2012CA2840163A1 Plug, and methods for setting and releasing the plug
12/27/2012CA2840140A1 An annular barrier with external seal
12/27/2012CA2840046A1 Interventionless set packer and setting method for same
12/27/2012CA2839920A1 Expandable filtering system for single packer systems
12/27/2012CA2839712A1 Pump drain arrangements for packer systems and methods for sampling underground formations using same
12/27/2012CA2839159A1 Fracturing port locator and isolation tool
12/26/2012EP2538018A1 An annular barrier with external seal
12/26/2012EP2536914A1 Valve device
12/26/2012CN202628064U Pressure relieving device for segmented hydrofracture on coal seam
12/26/2012CN202628046U Sectional sand blasting perforation sleeve fracturing string of continuous oil tube
12/26/2012CN202628030U Drilling, sealing and grouting three-way pipe
12/26/2012CN202628029U Salvageable bridge plug capable of plugging water tightly
12/26/2012CN202628028U Horizontal well section displacement efficiency measuring device
12/26/2012CN202628027U Fishable hydraulic blind plate well cementation device
12/26/2012CN202628026U Self-filling flow-velocity-adjustable float collar/float shoe device
12/26/2012CN202628025U Experiment device capable of simulating sealing of hole
12/26/2012CN202628024U Hyperpressure packer device
12/26/2012CN202628023U Shaft bottom anti-leakage plugging device for fixing shaft
12/26/2012CN202628022U Wedged compression packer
12/26/2012CN202628021U Controllable blanking plug
12/26/2012CN202628020U Novel simulated plugging test device for polymer plugging agent during drilling
12/26/2012CN202628019U Emergency treatment device for preventing well blowout of integrated transversing device of Christmas tree
12/26/2012CN202628018U Blowout preventer with threaded hammer and for sucker rod
12/26/2012CN202628017U Dual-purpose pump steam injection well blowout prevention device for oilfield thickened oil recovery
12/26/2012CN202628016U Lubricating, blowout prevention and three-stage sealing device for wellhead of oil pumping unit well
12/26/2012CN202628015U Grading perforation pumping capping device
12/26/2012CN202628014U Buckling cable type detachable wellhead crude oil (gas) anti-theft box
12/26/2012CN202628013U Multifunctional pumping unit wellhead polished rod sealing device
12/26/2012CN202628012U Anti-theft alarm for wellhead of gas well
12/26/2012CN202628011U Sealing device of fracturing swabbing interaction liquid drain pump
12/26/2012CN202628010U Novel sealing section
12/26/2012CN102844521A Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables
12/26/2012CN102839950A Tubular column for process of oil production by layer of oil well
12/26/2012CN102839941A Extensible slurry filling device for running casing
12/26/2012CN102839940A Rotator for cementing well at top of horizontal well screen pipe
12/26/2012CN102839939A Supercritical CO2 resistant packer
12/26/2012CN102839938A Resistance water hammer-proof packer
12/26/2012CN102839937A Rapid connection device for blowout prevention box
12/26/2012CN102839936A Sealer for oilfield wellhead
12/26/2012CN102839920A Multi-segment transforming tubular column for horizontal well and use method for same
12/26/2012CN102838974A Drilling flushing fluid for gangue dump
12/26/2012CN101775980B Quick drainage and hole sealing gas parameter testing system
12/26/2012CN101694152B Multi-level fine choke manifold and automatic control system
12/26/2012CN101473103B Packer element for use in a stuffing box
12/25/2012US8336635 Downhole apparatus with packer cup and slip
12/25/2012US8336634 System and method for packing
12/25/2012US8336616 Frac plug
12/25/2012US8336615 Low pressure-set packer
12/25/2012US8336181 Fiber reinforced packer
12/23/2012CA2779968A1 Oil containment system
12/20/2012WO2012174194A2 Diverter system for a subsea well
12/20/2012WO2012173870A2 Apparatus and method for connecting fluid lines
12/20/2012WO2012173834A2 Temperature resistant downhole elastomeric device
12/20/2012WO2012024440A3 Retrieving a subsea tree plug
12/20/2012US20120318532 Temperature Resistant Downhole Elastomeric Device
12/20/2012US20120318530 Device for a Tower for Well Operations and Use of Same
12/20/2012US20120318522 Air-freightable containment cap for containing a subsea well
12/20/2012US20120318521 Subsea containment cap adapters
12/20/2012US20120318520 Diverter system for a subsea well
12/20/2012US20120318513 Corrodible downhole article and method of removing the article from downhole environment
12/20/2012US20120318506 Acid-Soluble Cement Compositions Comprising Cement Kiln Dust and Methods of Use
12/20/2012US20120318496 Subsea Internal Riser Rotating Control Head Seal Assembly
12/20/2012DE102010046724A1 Method for preventing petroleum seepage during conveying of petroleum in deep sea holes by e.g. oil drilling platform, involves carrying out freezing of oil conveying pipe piece or freezing of oil deposit during breaking of pipe piece
12/20/2012CA2839284A1 Diverter system for a subsea well
12/19/2012EP2535510A2 Sub-sea chemical injection metering valve
12/19/2012EP2535509A2 Pipe Guide Arms for Blind Shear Rams
12/19/2012EP2535503A2 Riser system comprising pressure control means.
12/19/2012CN202612926U Anti-falling wellhead thermal expansion compensator
12/19/2012CN202612015U Adhering type hole sealing pump
12/19/2012CN202611748U Hole sealing structure
12/19/2012CN202611657U Specific bridge plug delivery device for operation under pressure
12/19/2012CN202611656U Uphole grouting sealer
12/19/2012CN202611655U Ball-passing type control starting packer
12/19/2012CN202611654U Insertion sealing structure for water injection sand prevention well
12/19/2012CN202611653U Annular mechanical packer for oil-gas well
12/19/2012CN202611652U Electro-hydraulic composite penetrating device for underwater horizontal Christmas tree system
12/19/2012CN202611651U Wellhead split-type packing box of pumping unit
12/19/2012CN202611650U Sealing structure of oil well cable
12/19/2012CN202611649U Pressure return type well opening movable sealing device capable of running with pressure
12/19/2012CN202611637U Well drilling spool
12/19/2012CN102828732A Two-stage two-section separate-injection pipe column capable of back-flushing well and protected by insert seal sleeve and separate-injection method of two-stage two-section separate-injection pipe column
12/19/2012CN102828721A Technology for selectively improving cementing quality of shale gas horizontal well
12/19/2012CN102828720A Sealing packer device of continuous drilling fluid circulating system
12/19/2012CN102828719A Integrated pluralistic oil production wellhead device
12/19/2012CN102828718A Portable insurance type testing instrument wellhead falling preventing device
12/19/2012CN102828717A Automatic deviation adjusting wellhead sealing device
12/19/2012CN102824806A Gas-slag separation device and blowout prevention system
12/19/2012CN102418493B Heat-sensitive umbrella type packer for sublevel mining
12/19/2012CN101852070B Pressure balancing inclined plane locking-type gradually deblocking packer
12/19/2012CN101560871B Multi-pipe-column injection test thermal recovery wellhead device
12/18/2012US8333241 Methods and compositions for packing void spaces and stabilizing formations surrounding a wellbore
12/18/2012US8333237 Wellhead isolation tool and wellhead assembly incorporating the same
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