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)
02/2014
02/20/2014DE102010025256A1 Device for sealing oil well on e.g. land, has high pressure line and high pressure generator coupled to narrowing mechanism/closing mechanism, and set of eyelets or other holding devices is arranged over cover utilized for oil bore
02/20/2014DE102010024074A1 Watertight-sheathing for sealing oil borehole, has high pressure pipe and high pressure generator that are coupled with closing mechanism, and eyelets formed in ring, where sheathing is drawn over oil borehole through eyelets
02/20/2014DE102010024071A1 Device for closing oil drill hole, has probe made of heat conductive material, storage tank coupled with pumping system, insulating layer formed in walls of liquid lines and exhibiting thermal insulation, and controller controlling outlets
02/20/2014DE102010024070A1 Device for forming oil drilling hole under sea water, has thermal insulating layer that is formed in walls of liquid lines
02/19/2014EP2697478A1 Sliding sleeve valve stage cementing tool and method
02/19/2014EP2697477A1 Capping stack and method for controlling a wellbore
02/19/2014EP2697476A1 Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
02/19/2014CN203441457U Pipe-in-pipe thickened oil steam injection well mouth device
02/19/2014CN203441430U Cement squeezing device in horizontal well construction
02/19/2014CN203441429U Clamping hoop connecting type cement head
02/19/2014CN203441428U Cement injection device for well cementation
02/19/2014CN203441427U Built-in type structure for blocking slurry in process of ejecting pipe out of hole
02/19/2014CN203441426U Pressure seal hole water stop device for geological drilling hole
02/19/2014CN203441425U Rubber guide device for universal blowout preventer
02/19/2014CN203441424U Blowout preventer of oil well casing
02/19/2014CN203441423U Rail-type anti-spraying tube lifting device
02/19/2014CN203441422U Gas extraction drilled hole orifice device
02/19/2014CN203441421U Umbilical cable clamping device
02/19/2014CN203441420U Packing pressing cap supporting device for rod pumped well
02/19/2014CN203441419U Sealed reducing joint and casing annulus device
02/19/2014CN203441418U Eccentric test wellhead equipment
02/19/2014CN203441417U Lubricating device of pumping unit polish rod sealer
02/19/2014CN203441416U Recovery device for packing sprayed liquid
02/19/2014CN203441409U Expansion type tail pipe hanging device of thermal production well
02/19/2014CN203441388U Tubing head of ocean oilfield exploitation equipment
02/19/2014CN103597167A Method and device for supply of liquids for kill and scale to a subsea well
02/19/2014CN103597165A Variably configurable wellbore junction assembly
02/19/2014CN103590817A Treatment method for abandoned oil and gas wells in coal mining area
02/19/2014CN103590783A Open hole easy-drilled bridge plug
02/19/2014CN103590782A Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking
02/19/2014CN103590781A Packer sealing element with shape memory material
02/19/2014CN103590780A High-temperature high-pressure large-drift-diameter hydraulic sleeve packer
02/19/2014CN103590779A Water seal jacket structure
02/19/2014CN103590778A Method for blocking off waste oil-gas well
02/19/2014CN103590777A BOP control safety emergency control device
02/19/2014CN103590776A Operating platform of wellhead for production
02/19/2014CN103590775A Drill pipe sealing device, mining arrester and mining drilling device
02/19/2014CN103590768A Treatment method for abandoned uncased wells in coal mining area
02/19/2014CN103590763A Blowout preventer transportation and installation device of oil drilling platform
02/19/2014CN103589410A Chemical assistant for temporary blocking treatment and energy increment of thickened oil steam huff-puff well as well as preparation method and application of chemical assistant
02/19/2014CN103589408A High temperature and high salinity resistant plugging control system and plugging control method by using same
02/19/2014CN102305055B Air foam flooding shaft bottom foaming process pipe column
02/18/2014US8651192 Coiled tubing bottom hole assembly with packer and anchor assembly
02/18/2014US8651190 Shear boost triggering and bottle reducing system and method
02/18/2014US8651186 Radiation-induced triggering for set-on-command sealant compositions and methods of use
02/18/2014US8651185 Reducing or stopping the uncontrolled flow of fluid such as oil from a well
02/18/2014US8651180 Hydraulic packer constructed in glass-fiber reinforced epoxy and stainless steel
02/18/2014US8651179 Swellable downhole device of substantially constant profile
02/18/2014US8651178 Packer
02/18/2014US8651174 Method and apparatus for dropping a pump down plug or ball
02/18/2014CA2762070C Dissolvable downhole tool, method of making and using
02/18/2014CA2718929C Coupling apparatus
02/18/2014CA2657156C Composite material formulation
02/13/2014WO2014025969A2 High temperature packers
02/13/2014WO2014025769A1 Hybrid expansion cone
02/13/2014WO2014024827A1 Ball sealer for hydrocarbon resource collection as well as manufacturing method therefor and down-hole treatment method using same
02/13/2014WO2013079390A3 Tubing hanger with coupling assembly
02/13/2014US20140041870 Method For Reducing Permeability Of A Subterranean Reservoir
02/13/2014US20140041858 High Temperature Packers
02/13/2014US20140041857 Setting tool, anchoring and sealing device and system
02/12/2014EP2694775A2 Drillable slip with non-continuous outer diameter
02/12/2014CN203430475U Three-way cement discharge pipe of oil field well cementation cementing tank
02/12/2014CN203430474U Automatic completion fluid injection control device
02/12/2014CN203430473U Underground hydraulic fracturing drill hole sealing device of coal mine
02/12/2014CN203430472U Hole sealing device for rapidly sealing drill holes
02/12/2014CN203430471U Air bag device for sealing hole rapidly
02/12/2014CN203430470U Electric sealing section
02/12/2014CN203430469U Double-umbrella shaped retaining type hole strengthening device
02/12/2014CN203430468U Water detecting and blocking device with intelligent switches
02/12/2014CN203430467U Packer
02/12/2014CN203430466U Drill hole sealing device for gas extraction of coal mine
02/12/2014CN203430465U Wellhead anti-spraying and pressure releasing device applied to pressure dragging staged fracturing method
02/12/2014CN203430464U Underwater manifold connector
02/12/2014CN203430463U Packing box with packing capable of being taken quickly
02/12/2014CN203430462U Anti-backflow oil well Christmas tree
02/12/2014CN203430461U Multifunctional secondary seal well completion oil production wellhead device
02/12/2014CN203430455U Device for fixing blowout preventer
02/12/2014CN103573256A Underground blowout preventer experiment bench device and operation method thereof
02/12/2014CN103573224A Technology for fishing oil under pressure
02/12/2014CN103573212A Composite casing pipe split type rubber plug device well cementing
02/12/2014CN103573211A Composite bridge plug and central tube thereof
02/12/2014CN103573210A Quick drill composite pipe bridge plug
02/12/2014CN103573209A Rubber sleeve for packer
02/12/2014CN103573208A Multi-effect packer
02/12/2014CN103573207A Injection-compression packer
02/12/2014CN103573206A Rotary assembly of active sealing type rotary blowout preventer
02/12/2014CN103573205A Sealing cup packer for pressure testing of blowout preventer
02/12/2014CN103571445A Silicate plugging agent for oil-well water plugging and application method thereof
02/12/2014CN102561950B Process for realizing grouting consolidation for aggregates filled in cavities of strata and jetting drill bit
02/12/2014CN102364038B Underwater oil pipe hanger embedded guiding and positioning device
02/12/2014CN102140900B Design method of expanding type anti-sticking packer
02/12/2014CA2835592A1 Method for producing oil from induced fractures using a single wellbore and multiple -channel tubing
02/11/2014US8646537 Remotely activated downhole apparatus and methods
02/11/2014US8646534 Well head containment fitting device
02/11/2014US8646530 Chemical diversion technique
02/11/2014US8646521 Method and apparatus for cleaning a drill string
02/11/2014CA2759904C Locking penetrator
02/11/2014CA2748215C Wellhead downhole line communication arrangement
02/11/2014CA2741270C Retrievable slip mechanism for downhole tool
02/11/2014CA2688186C Mill-through tailpipe liner exit and method of use thereof
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