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)
12/2005
12/08/2005WO2005116395A2 Hydraulically set concentric packer with multiple umbilical bypass through the piston
12/08/2005WO2005116394A1 A method and a device for expanding a body under overpressure
12/08/2005WO2005116393A1 Downhole tool
12/08/2005WO2005116389A1 Apparatus and method for setting a tubing anchor and tensioning a tubing string thereabove
12/08/2005WO2005073502A3 Emulsion admixtures for improving cement elasticity
12/08/2005US20050269108 Expandable sealing apparatus
12/08/2005US20050269105 Apparatus for facilitating the connection of tubulars using a top drive
12/08/2005US20050269102 Tieback connector
12/08/2005US20050269096 Method and apparatus for blow-out prevention in subsea drilling/completion systems
12/08/2005US20050269080 Method and apparatus for performing chemical treatments of exposed geological formations
12/08/2005US20050269079 Blowout preventer testing system
12/08/2005CA2567632A1 Downhole isolation tool
12/08/2005CA2565074A1 Subterranean fluids and methods of cementing in subterranean formations
12/07/2005EP1373682B1 Power connection to and/or control of wellhead trees
12/07/2005EP1216342B1 Subsea lubricator device and methods of circulating fluids in a subsea lubricator
12/07/2005EP1064452B1 Formation testing apparatus and method
12/07/2005CN2744828Y Pumping well polish rod non-filling type sealer
12/07/2005CN1704559A High strength and readily soluble nano water shutoff agent
12/06/2005US6971447 Vent screen pressure deployment tool and method of use
12/06/2005CA2367527C Downhole tool with thermal compensation
12/06/2005CA2342074C Treating shale and clay in hydrocarbon producing formations
12/01/2005WO2005113932A1 Armored stripper rubber
12/01/2005WO2005112574A2 Flying lead connector and method for making subsea connections
12/01/2005WO2005085587A3 Method for accelerating oil well construction and production processes and heating device therefor
12/01/2005US20050263318 Structure for fixing an electronic device to a substrate
12/01/2005US20050263296 Deformable member
12/01/2005US20050263295 Recoverable, reinforced and vibration-damping plug used for cased wells
12/01/2005US20050263293 Apparatus and method for setting a tubing anchor and tensioning tubing string thereabove
12/01/2005US20050263291 BOP conversion apparatus
12/01/2005US20050263288 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production
12/01/2005US20050263283 Methods for stabilizing and stimulating wells in unconsolidated subterranean formations
12/01/2005US20050263282 Well abandonment apparatus
12/01/2005US20050263279 Pressure monitoring of control lines for tool position feedback
11/2005
11/30/2005CN2743533Y Multifunction eruption proof device
11/30/2005CN2743532Y Well oil rod sealing device of multifunction oil pumping machine
11/30/2005CN2743531Y Self locking automatic compensating air control spray proof box
11/30/2005CN1703566A Cement through side pocket mandrel
11/30/2005CN1702290A Method and device for harnessing bittern burst of brine well by blasting
11/29/2005US6969070 Split carrier annulus seal assembly for wellhead systems
11/29/2005US6969042 Blowout preventer and ram actuator
11/29/2005US6968904 Method and apparatus for operations in underground/subsea oil and gas wells
11/29/2005US6968902 Drilling and producing deep water subsea wells
11/29/2005US6968618 Expandable connector
11/29/2005CA2387592C Drillable inflatable packer and methods of use
11/29/2005CA2383444C Positive indication system for well annulus cement displacement
11/29/2005CA2329775C Flying lead workover interface system
11/26/2005CA2508502A1 Apparatus and method for setting a tubing anchor and tensioning a tubing string thereabove
11/24/2005WO2005111370A2 Improved flexible cup for downhole devices
11/24/2005US20050261139 Well treatment fluid and methods with oxidized polysaccharide-based polymers
11/24/2005US20050261137 Methods and fluid compositions for depositing and removing filter cake in a well bore
11/24/2005US20050257936 Gravity valve for a downhole tool
11/24/2005US20050257928 Hydraulically set concentric packer with multiple umbilical bypass through the piston
11/23/2005EP1252440B1 Controlling activation of devices
11/23/2005CN2742123Y Cement cap well cementing tool for major repair well
11/23/2005CN2742122Y Reverse pressure difference anchoring packer
11/23/2005CN2742121Y Quick expansion water blocking seal device
11/23/2005CN2742120Y Overhead blow out preventer for oil well bailing operation
11/23/2005CN2742119Y Device for reducing oil pumping unit overhead seal packing bias wear
11/22/2005US6966392 Method for varying the density of drilling fluids in deep water oil and gas drilling applications
11/22/2005US6966386 Downhole sealing tools and method of use
11/22/2005US6966383 Horizontal spool tree with improved porting
11/22/2005US6966382 Secondary release for wellhead connector
11/22/2005US6966381 Drill-through spool body sleeve assembly
11/22/2005US6966375 Downhole surge pressure reduction and filtering apparatus
11/22/2005US6966373 Inflatable sealing assembly and method for sealing off an inside of a flow carrier
11/22/2005US6966370 Apparatus for actuating an annular piston
11/22/2005US6966369 Expandable tubulars
11/22/2005CA2267778C Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing
11/17/2005WO2005108802A1 Mechanical connection system
11/17/2005WO2005108741A1 Tool trap assembly and method
11/17/2005WO2005108740A1 Spring-biased pin connection system
11/17/2005WO2005108739A1 Wellbore control device
11/17/2005WO2005108738A1 Loading cementing darts
11/17/2005US20050252662 Apparatus and method for expanding a tubular
11/17/2005US20050252661 Casing degasser tool
11/17/2005US20050252657 Method and Apparatus to Isolate Fluids During Gravel Pack Operations
11/17/2005US20050252656 In-situ method of producing oil shale and gas (methane) hydrates, on-shore and off-shore
11/17/2005US20050252653 Full bore wellhead load shoulder and support ring
11/17/2005US20050252556 Control ball valve
11/17/2005CA2565861A1 Wellbore control device
11/17/2005CA2563081A1 Tool trap assembly and method
11/16/2005EP1234094B1 Creating multiple fractures in an earth formation
11/16/2005CN2740770Y Low-temperature seat packing thermal extracting packer with automatic compensator
11/16/2005CN2740769Y Improved top sealing structure with suspension steel wires for wax remover of gusher tube
11/15/2005US6964306 Manifold device and method of use for accessing a casing annulus of a well
11/15/2005CA2487158C Hydraulic underreamer and sections for use therein
11/15/2005CA2434804C Multi-lock adapters for independent screwed wellheads and methods of using same
11/15/2005CA2434346C Retrievable packer having a positively operated support ring
11/15/2005CA2322431C Method and apparatus for cementing casing in a wellbore
11/15/2005CA2307538C Hanging liners by pipe expansion
11/15/2005CA2162035C Preform or matrix tubular structure for well casing
11/15/2005CA2158291C Method for multi-lateral completion and cementing the juncture with lateral wellbores
11/15/2005CA2140235C Parallel seal assembly
11/13/2005CA2507105A1 Casing degasser tool
11/10/2005WO2005106198A1 Method of treating oil and gas wells
11/10/2005WO2005106189A1 Improved packer
11/10/2005WO2005106188A1 Blowout preventer and method for manipulating a ram block
11/10/2005WO2005106187A1 Blowout preventer, ram actuator and method of actuating a ram
11/10/2005WO2004092528A3 Apparatus for radially expanding and plastically deforming a tubular member
11/10/2005WO2004076797A3 Method and apparatus to complete a well having tubing inserted through a valve
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