E21B 33 - Sealing or packing boreholes or wells

Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
11/2013
11/06/2013	CN203271667U Protector for oil layer of large channel
11/06/2013	CN203271666U Circulation type jacking and pressing blocking device
11/06/2013	CN203271665U Umbrella-type hole sealing device
11/06/2013	CN203271664U Anti-theft controllable well sealing device
11/06/2013	CN203271663U All-purpose blowout preventer without side door bolts
11/06/2013	CN203271662U Integrated multifunctional blowout preventer
11/06/2013	CN203271661U Blowout preventing box for wellhead
11/06/2013	CN203271660U Emergency release suspension tool for marine operation oil tube
11/06/2013	CN203271659U Rotate-pressing type metallic seal assembly used for marine dry wellhead
11/06/2013	CN203271658U Double gland box packing case
11/06/2013	CN203271657U Tangential swirl annulus fracturing wellhead device
11/06/2013	CN203271656U Mechanical oil production wellhead pressure boosting protector
11/06/2013	CN203271655U Anti-seepage pressing plugging device for deep well
11/06/2013	CN203271654U Anti-theft password-lock for wellhead
11/06/2013	CN203271623U Hydraulic blowout preventing pipe lifting device for wellhead
11/06/2013	CN103382835A Water exploration and plugging technology by adopting intelligent switches
11/06/2013	CN103382831A Double-hydraulic-cylinder packing-off device
11/06/2013	CN103382830A Plug installation system and method
11/06/2013	CN103382825A Improved flow module placement between a subsea tree and a tubing hanger spool
11/06/2013	CN103061785B Grouting process for borehole casing pressure-proof seepage sealing grouting device for drilling roadway breaking water burst surrounding rock
11/06/2013	CN102979478B Water stopping device for water inrush borehole drilling
11/06/2013	CN102561992B Grouting plugging process adopting deformation water stopper
11/06/2013	CN102505928B Method for treating natural gas well suite gas channeling
11/06/2013	CN101896687B Subsea valve
11/06/2013	CN101718178B Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution
11/06/2013	CN101718169B Method for implementing six-stage multilateral well completion by posterior inferior three-way branching mechanism
11/06/2013	CN101139917B Method and device for mounting and approaching blowout preventer bonnets
11/05/2013	US8573557 Bidirectional ram BOP and method
11/05/2013	US8573314 Packer system with reduced friction during actuation
11/05/2013	US8573313 Well servicing methods and systems
11/05/2013	US8573307 High pressure sleeve for dual bore HP riser
11/05/2013	US8573306 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
11/05/2013	US8573301 Method and apparatus for dropping a pump down plug or ball
11/05/2013	US8573295 Plug and method of unplugging a seat
11/05/2013	US8573293 Dual rubber cartridge
11/05/2013	CA2785878C Methods and apparatus for subsea well intervention and subsea wellhead retrieval
11/05/2013	CA2752537C Blowout preventer with ram socketing
11/05/2013	CA2684670C In-situ formation of solids for well completions and zonal isolation
11/05/2013	CA2648340C Improved packer
10/2013
10/31/2013	WO2013163607A1 Magnetic retrieval tool
10/31/2013	WO2013162800A1 One trip treatment system with zonal isolation
10/31/2013	WO2013162558A1 Downhole circulating valve having a seal plug and method for operating same
10/31/2013	WO2013162380A1 Anchor mechanism for use in a well
10/31/2013	WO2013160687A2 Oilfield apparatus and methods of use
10/31/2013	WO2013160686A2 Oilfield apparatus and methods of use
10/31/2013	WO2013159237A1 Methods and electrically-actuated apparatus for wellbore operations
10/31/2013	WO2013123207A3 Methods and compositions comprising cement kiln dust having an altered particle size
10/31/2013	WO2013036145A3 Petroleum well intervention winch system
10/31/2013	WO2013009455A3 Remotely activated downhole apparatus and methods
10/31/2013	WO2013009438A3 Covered retaining shoe configurations for use in a downhole tool
10/31/2013	WO2012156742A3 Drilling apparatus and method
10/31/2013	US20130284953 Valve apparatus and improved ram
10/31/2013	US20130284456 Wellhead Control Line Deployment
10/31/2013	US20130284449 Subsea wellhead including monitoring apparatus
10/31/2013	US20130284445 Emergency elastomer injection system for use on e-line and braided cable
10/31/2013	US20130284439 Wide temperature range cement retarder
10/31/2013	US20130284436 Method of providing an annular seal, and wellbore system
10/30/2013	EP2657448A2 Swellable packer in hookup nipple
10/30/2013	EP2655792A2 Gravel packing in lateral wellbore
10/30/2013	CN203257373U 自动灌浆浮箍 Automatic grout float collar
10/30/2013	CN203257372U Packer working in a step-by-step deblocking mode
10/30/2013	CN203257371U Supporting type packer
10/30/2013	CN203257370U Pre-pressure type blocking device
10/30/2013	CN203257369U Built-in shaft blocking device of reservoir physical model
10/30/2013	CN203257368U Manually-adjusting special swabbing anti-blowout box
10/30/2013	CN203257367U Ring seal assembly of multilevel metal seal structure
10/30/2013	CN203257366U Polish rod composite sealing packing of pumping well
10/30/2013	CN203257365U Eccentric wellhead assembly
10/30/2013	CN203257364U Blowout prevention cleaning machine of pumping unit
10/30/2013	CN203257363U Novel coal bed gas wellhead structure
10/30/2013	CN203257341U Automatically-aligned type sucker rod anti-spraying connector
10/30/2013	CN103380262A Methods of maintaining sufficient hydrostatic pressure in multiple intervals of a wellbore in a soft formation
10/30/2013	CN103380261A Blowout preventer translating shaft locking system
10/30/2013	CN103380260A Device for a valve
10/30/2013	CN103375159A Multi-flowing-hole slide bushing and multistage horizontal well fracturing slide bushing string
10/30/2013	CN103375158A Fracturing wellhead ball catcher
10/30/2013	CN103375146A Outburst prevention device and outburst prevention method for packer sealing mechanism
10/30/2013	CN103375145A Fusing type tubing plug of multilayer injector
10/30/2013	CN103375144A Fuse type oil pipe plug of eccentric injection well
10/30/2013	CN103375143A Emergency elastomer injection system for use on e-line and braided cable
10/30/2013	CN101787864B Method for plugging water from oil reservoir fractured water logging oil well developed by injecting water into low-permeable reservoir stratum
10/29/2013	US8569214 Methods of using polysaccharide based cement additives
10/29/2013	US8567515 Tools and methods for hanging and/or expanding liner strings
10/29/2013	US8567507 Rotating and reciprocating swivel apparatus and method
10/29/2013	US8567494 Well operating elements comprising a soluble component and methods of use
10/29/2013	US8567492 Modified packer with non-extrusion ring
10/29/2013	US8567490 Shear seal blowout preventer
10/29/2013	US8567489 Angled-penetrator device and system
10/29/2013	US8567488 Modular dart launching valve
10/29/2013	CA2716209C A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
10/24/2013	WO2013158745A1 Frac plug body
10/24/2013	WO2013158542A1 Expandable annular isolator
10/24/2013	WO2013158487A1 High temperature stable water swellable rubber composition
10/24/2013	WO2013158260A1 Packer, sealing system and method of sealing
10/24/2013	WO2013158124A1 Completing long, deviated wells
10/24/2013	WO2013158031A1 A casing hanger
10/24/2013	WO2013158030A1 A casing hanger
10/24/2013	WO2012164053A3 Plugging device
10/24/2013	WO2012146707A3 Cycling device
10/24/2013	US20130277069 Swellable Downhole Apparatus and Support Assembly

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