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)
12/2010
12/16/2010WO2010144583A2 Contaminant excluding junction and method
12/16/2010WO2010143975A1 Tube sealing device and a sealing element for such a device.
12/16/2010WO2010142370A1 Engineered fibers for well treatments
12/16/2010WO2009086279A3 Acoustic measurements with downhole sampling and testing tools
12/16/2010WO2006083717A3 Packer with positionable collar
12/16/2010US20100314135 Subterranean Well Tool including a Locking Seal Healing System
12/16/2010US20100314134 Swellable Apparatus and Method of Forming
12/16/2010US20100314133 Frac sleeve system and method
12/16/2010US20100314128 Method and apparatus for sealing and venting pressurized casings of gas wells
12/16/2010US20100314125 Stimulation technique for open hole well
12/16/2010US20100314124 Open-hole stimulation system
12/16/2010US20100314122 Method and system for subsea intervention using a dynamic seal
12/16/2010US20100314112 Method of treating oil and gas wells
12/16/2010US20100314111 Cement Compositions Comprising Particulate Foamed Elastomers and Associated Methods
12/16/2010US20100314107 Method and device for transferring signals within a well
12/16/2010CA2762922A1 Engineered fibers for well treatments
12/15/2010EP2261458A1 Engineered fibres for well treatments
12/15/2010EP2261457A2 Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment
12/15/2010EP2261456A2 Method and apparatus for drilling a borehole into a subsea abnormal pore pressure environment
12/15/2010EP2260175A1 Well plug
12/15/2010EP1606526B1 Method for preventing critical annular pressure buildup
12/15/2010CN201671653U Rubber bladder sealing device
12/15/2010CN201671623U Leakage-finding water exclusion production string for horizontal wells
12/15/2010CN201671610U Thermal production well sleeve heat stress compensator
12/15/2010CN201671592U Dual power grouting pump
12/15/2010CN201671591U Concentric tube winding reservoir cementing tool
12/15/2010CN201671590U Compressed water injection well flushing packer
12/15/2010CN201671589U Oilfield injection well plug
12/15/2010CN201671588U Pressure measuring hole sealing apparatus for downward long hole
12/15/2010CN201671587U Special pressure testing tool for blowout preventer
12/15/2010CN201671586U Blowout preventer versatile device
12/15/2010CN201671585U Eccentric wear and spray prevention well mouth seal device
12/15/2010CN201671584U Portable folding wellhead operation platform of pumping well
12/15/2010CN201671583U Pumping rod type overflow controller
12/15/2010CN101915075A Gas hydrate mined by adopting low-temperature solid oxide fuel cell method and device thereof
12/15/2010CN101915072A Method for extracting coal bed gas in stable mining region by ground well drilling
12/15/2010CN101915071A Tool for filling and backwashing oil well
12/15/2010CN101915070A Expanding open hole packer
12/15/2010CN101915069A Sulfur-resistant oil and gas extraction wellhead device provided with structure for replacing No.1 main control valve
12/14/2010US7851417 for plugging permeable zones; subterranean formations
12/14/2010US7849930 Swellable packer construction
12/14/2010US7849599 Imputing strength gradient in pressure vessels
12/14/2010CA2613274C Pipe running tool having a cement path
12/14/2010CA2606179C Expandable packer with mounted exterior slips and seal
12/14/2010CA2508498C Coupling and sealing tubulars in a bore
12/14/2010CA2457217C Casing adapter tool for well servicing
12/09/2010WO2010141795A2 Subsea control module with interchangeable segments
12/09/2010WO2010112991A3 Lining of wellbore tubing
12/09/2010US20100307774 Device and method for isolating a section of a wellbore
12/09/2010US20100307773 Method and an apparatus for controlling a well barrier
12/09/2010US20100307772 Solid rubber packer for a rotating control device
12/09/2010US20100307771 Sealing assembly
12/09/2010US20100307770 Contaminant excluding junction and method
12/09/2010US20100307764 Bimetallic Diaphragm for Trapped Fluid Expansion
12/09/2010US20100307763 Subsea horizontal christmas tree
12/09/2010US20100307761 Subsea Control Module with Interchangeable Segments
12/09/2010US20100307760 Subsea wireline intervention system
12/09/2010US20100307751 Cement diffuser for annulus cementing
12/09/2010US20100307750 Squeeze composition for restoring isolation
12/09/2010US20100307737 Packer with Ribs
12/08/2010EP2258921A1 Actuator for well-haed valve or other similar applications and system incorporating same
12/08/2010EP2258920A2 Packer providing multiple seals and having swellable element isolatable from the wellbore
12/08/2010EP2132406B1 Ball seat assembly and method of controlling fluid flow through a hollow body
12/08/2010CN201666142U Hydraulic perforate non-drilling stage collar
12/08/2010CN201666141U Slurry tank
12/08/2010CN201666140U Mud tank of solid control system
12/08/2010CN201666139U Metal sealing device for wellhead device sleeve pipe
12/08/2010CN201666138U Water-injection gas-exhaustion well sealing device of coal bed gas well
12/08/2010CN201666137U Novel flange connection sealing device
12/08/2010CN101906955A Oil and gas well underground straddle packing layer-by-layer fracture acidizing tool tubular column structure
12/08/2010CN101906954A Layering sand-control layering oil production integrated pipe column
12/08/2010CN101906950A Large-size float shoe for monohole expandable casing
12/08/2010CN101906949A Underbalanced well completion tool
12/08/2010CN101906948A Layer mining converter of defueling pump
12/08/2010CN101906946A Hydraulic expansion-type rotary liner hanger
12/08/2010CN101343988B Deep layer cement-soil mixing pile grouting water-blocking method for artesian area
12/07/2010US7845412 Pressure control with compliant guide
12/07/2010US7845408 Top drive swivel apparatus and method
12/07/2010US7845404 Optical sensing system for wellhead equipment
12/07/2010US7845402 Expandable packer system
12/07/2010US7845401 Telescoping wiper plug
12/07/2010US7845400 Launching tool for releasing cement plugs downhole
12/02/2010WO2010136806A2 An active external casing packer (ecp) for frac operations in oil and gas wells
12/02/2010WO2010118268A3 Compact surface wellhead system and method
12/02/2010WO2010115523A8 Compositions and methods for servicing subterranean wells
12/02/2010WO2010096417A3 Swellable material activation and monitoring in a subterranean well
12/02/2010US20100300705 Metal-to-metal seal with travel seal bands
12/02/2010US20100300703 Pressure actuable downhole tool and a method for actuating the same
12/02/2010US20100300700 Wellhead Assembly
12/02/2010US20100300689 Sealing assembly
12/02/2010DE202010009172U1 Vorrichtuzng, die eine Ölbohrung abdichten soll Vorrichtuzng, is intended to seal an oil well
12/02/2010DE202010009171U1 Vorrichtung, die eine defekte Ölbohrung schließen kann Device that can connect a broken oil well
12/02/2010DE202010009170U1 Vorrichtung, die eine Ölbohrung versiegeln soll Device to seal an oil hole
12/02/2010DE202010009169U1 Vorrichtung, die eine Ölbohrung schließen kann Device which may include an oil hole
12/02/2010DE202010009168U1 Vorrichtung, die eine havarierte Ölbohrung schließen kann Device that can connect a wrecked oil drilling
12/02/2010DE202010009116U1 Vorrichtung zum Abdichten einer havarierten Austrittstutzens Apparatus for sealing a damaged outlet connection
12/01/2010EP2256290A1 Casing shoes and methods of reverse-circulation cementing of casing
12/01/2010EP2256289A1 Casing shoes and methods of reverse-circulation cementing of casing
12/01/2010EP2256288A2 Improved subsea cementing plug system with plug launching tool
12/01/2010EP2256287A1 Casing shoes and methods of reverse-circulation cementing of casing
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