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)
09/2010
09/23/2010CA2759904A1 Locking penetrator
09/22/2010EP2230378A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
09/22/2010EP2230377A1 Underwater cementing method
09/22/2010EP2229552A1 Leak sealing apparatus
09/22/2010CN201588598U Novel segmental cement injection device
09/22/2010CN201588597U Ground control type cementing tool
09/22/2010CN201588596U Compressive packer rubber roller used for oil and gas fields with improved structure
09/22/2010CN201588595U Primary/secondary hydraulic cylinder ram type blowout preventer
09/22/2010CN201588594U Mechanically-driven flashboard locking device
09/22/2010CN201588593U Double-ball-joint deviation adjusting oil injection blowout control stopper
09/22/2010CN201588592U Wireless remote control blowout preventer control device with high pressure test function
09/22/2010CN201588591U Blowout control device after lifting oil pipe of continuous oil pipe truck
09/22/2010CN201588590U Millstone-type automatic aligning sealer for rod-pumped well opening
09/22/2010CN201588589U Wellhead traversing device for capillary tubes
09/22/2010CN201588588U Novel high-pressure plastic spring tube
09/22/2010CN201588587U Sealing gasket ring with double sealing conical surfaces
09/22/2010CN201588586U Slip sealed sleeve pup joint patch-connector
09/22/2010CN201588585U Safety joint of oil gas well pumping anti-injecting box
09/22/2010CN201588584U By-pass type oil extraction well head device
09/22/2010CN201588583U Universal well mouth used for steam infusing, heat collecting, and burglary prevention
09/22/2010CN201588582U Device for rotating control head to insert into drill rod
09/22/2010CN201588581U Injection, production and monitoring multi-pipe string thermal production well head device
09/22/2010CN201588575U Packer fixing ring and self-expansion packer when encountering oil and water with same
09/22/2010CN101842546A Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
09/21/2010US7799743 Lost circulation additive for drilling fluids
09/21/2010US7798466 Ram locking blowout preventer
09/21/2010US7798231 Adapter sleeve for wellhead housing
09/21/2010US7798226 Cement diffuser for annulus cementing
09/21/2010US7798225 Apparatus and methods for creation of down hole annular barrier
09/21/2010US7798223 Bore isolation
09/21/2010US7798222 Expandable fluid cement sand control
09/21/2010US7798210 Dual rubber cartridge
09/21/2010US7798208 Wellhead assembly and method
09/21/2010CA2600425C A method and a device for in situ formation of a seal in an annulus in a well
09/21/2010CA2587190C Method of cementing expandable well tubing
09/21/2010CA2515296C Methods and apparatus for wellbore construction and completion
09/21/2010CA2491825C Linear hydraulic stepping actuator with fast close capabilities
09/21/2010CA2436924C Stuffing box for progressing cavity pump drive
09/20/2010CA2696583A1 Capillary hanger arrangement for deploying control line in existing wellhead
09/16/2010WO2010105173A2 Pressure control device for wireline cables
09/16/2010WO2010105065A2 Downhole sealing device and method of making
09/16/2010WO2010088037A3 Method and system for one-trip hanger installation
09/16/2010US20100230902 Downhole sealing device and method of making
09/16/2010US20100230114 Wireline run fracture isolation sleeve and plug and method of operating same
09/16/2010US20100230110 Well unloading package
09/16/2010US20100230104 Method for completing a borehole
09/16/2010US20100230103 Plug for a Perforated Liner and Method of Using Same
09/16/2010US20100230102 Methods of Extending the Shelf Life of and Revitalizing Lightweight Beads for Use in Cement Compositions
09/16/2010US20100230101 Method and apparatus to cement a perforated casing
09/16/2010US20100230100 Plug for a Perforated Liner and Method of Using Same
09/16/2010US20100230094 Sealing Feed Through Lines for Downhole Swelling Packers
09/16/2010US20100230090 Low Cost Rigless Intervention and Production System
09/16/2010DE202010009491U1 Offshorenotverschluss Offshorenotverschluss
09/15/2010EP2228513A2 Wireline run fracture isolation sleeve and plug and method of operating same
09/15/2010CN201581877U Same-well multi-layer injection-production technical tubing string
09/15/2010CN201581874U Skid-mounted water-dissolution mining technological process converting and monitoring device
09/15/2010CN201581860U Easily-drilling hybrid blind plate applicable for oil drilling well completion field
09/15/2010CN201581859U Telescopic blind plate
09/15/2010CN201581858U Multi-stage cementing unit
09/15/2010CN201581857U Cement grouter of tail pipe
09/15/2010CN201581856U Multilevel compressive extro-pipe packer used for segmented completion of horizontal well
09/15/2010CN201581855U Backcycling scouring packer of horizontal well
09/15/2010CN201581854U Expanding sealing tool of external packer of horizontal well
09/15/2010CN201581853U Pumping well head blowout preventer
09/15/2010CN201581852U Flexible blowout preventer
09/15/2010CN201581851U Special well-head rapid transporting and installing device for coal bed gas drilling machine
09/15/2010CN201581850U Oil-gas well casing head
09/15/2010CN201581849U Oil-stolen preventing device
09/15/2010CN201581848U Combined forced lubrication oil pumping unit well head sealer
09/15/2010CN201581847U Anti-theft polished rod sealing unit of pumping well
09/15/2010CN201581846U Oil well oil pumping polished rod sealing device
09/15/2010CN201581845U Anti-theft polished rod sealing unit
09/15/2010CN101832118A High-strength integral rubber polished rod sealing device
09/15/2010CN101429858B Oil field shaft mouth clamping seat
09/15/2010CN101029576B Method and apparatus for protruding hazadous coal-bed safety guide-jet drilling
09/14/2010US7795188 contacting zirconium triethanolamine complex with mixture of polyols comprising hydroxyalkylated diamine and hydrocarbon polyol; oil fields, hydraulic fracturing and plugging of permeable zones of subterranean formations; well bores
09/14/2010US7793730 Lubricator system
09/14/2010US7793721 Apparatus for radially expanding and plastically deforming a tubular member
09/14/2010US7793719 Top drive casing system
09/14/2010CA2593356C Molded composite mandrel for a downhole zonal isolation tool
09/13/2010CA2695329A1 Wireline run fracture isolation sleeve and plug and method of operating same
09/13/2010CA2674160A1 Plug for a perforated liner and method of using same
09/13/2010CA2659528A1 Plug for a perforated liner and method of using same
09/12/2010CA2696388A1 Compositions and methods for inhibiting lost circulation during well operations
09/10/2010WO2010102076A2 Wellhead conversion system and method
09/10/2010WO2010101668A1 Multi-pressure flange connection
09/10/2010WO2010064001A3 Sealing unit
09/10/2010WO2009112853A3 Gripping element for gripping a tubular in the construction and maintenance of oil and gas wells
09/10/2010WO2009102601A3 Angled-penetrator device and system
09/09/2010US20100224373 Wellhead Conversion System and Method
09/09/2010US20100224366 Methods of Using Colloidal Silica Based Gels
09/09/2010US20100223990 Apparatus and Method for Formation Testing
09/09/2010DE202010009812U1 Vorrichtung zum Abdichten eines Bohrloches An apparatus for sealing a wellbore
09/09/2010DE202010007857U1 Kuppel-Vorrichtung zum Abdichten offener Bohrlöcher Dome device for sealing open holes
09/08/2010EP2225436A1 Subsea horizontal christmas three
09/08/2010CN201575166U Butterfly oil tube switch valve
09/08/2010CN201574728U Detachable and easy-to-install thermal-insulation heater of well-head shutter blowout preventer
09/08/2010CN201574724U Full-aperture classifying cementer
09/08/2010CN201574723U Over-pressure type float collar float plug
09/08/2010CN201574722U Self-anchoring packer
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