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 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Patents for E21B 23 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (12,712)
12/2008
12/17/2008EP0907822B1 Method for expanding a steel tubing and well with such as tubing
12/16/2008US7464758 Model HCCV hydrostatic closed circulation valve
12/16/2008CA2441138C Removal of tubulars from wells
12/16/2008CA2362522C Method of making a conductive downhole wire line system
12/11/2008US20080302524 Apparatus for wellbore communication
12/10/2008EP1999337A1 Frac system without intervention
12/09/2008CA2528473C Method and apparatus for deploying a line in coiled tubing
12/09/2008CA2500704C Mono-trip well completion
12/09/2008CA2444086C Apparatus and method for utilising expandable sand screen in wellbores
12/09/2008CA2442088C Pressure compensating apparatus and method for downhole tools
12/04/2008WO2008033738A3 Coiled tubing wellbore drilling and surveying using a through the drill bit apparatus
12/04/2008US20080296017 Methods and Apparatus to Sample Heavy Oil from a Subteranean Formation
12/04/2008US20080296015 Clutch for a Jack Element
12/04/2008US20080296014 Interventionless composite packer
12/03/2008CN201159181Y Anti-falling device of submersible electric pump
12/03/2008CN201159061Y Controllable tubing anchor
11/2008
11/27/2008WO2008144422A1 Method and apparatus for dropping a pump down plug or ball
11/27/2008WO2008142409A1 Downhole flow control tool and method
11/27/2008WO2008057726A3 System and method for protecting downhole components during deployment and wellbore conditioning
11/27/2008WO2004085790A3 Apparatus for radially expanding and plastically deforming a tubular member
11/26/2008EP1608839B1 Method and apparatus to complete a well having tubing inserted through a valve
11/26/2008CN201155307Y Jack well polish rod packing remover
11/26/2008CN201155306Y Pack fetching and mounting device
11/26/2008CN100436752C High expansion anchor system
11/25/2008US7455127 Apparatus and method for improving multilateral well formation and reentry
11/25/2008CA2446529C Disconnect check valve mechanism for coiled tubing
11/25/2008CA2439026C Optical fiber conveyance, telemetry, and/or actuation
11/25/2008CA2434770C Apparatus for recording a physical impression of an object down an oil well
11/25/2008CA2261250C Wireline retrievable oilwell pumping system
11/20/2008US20080283237 Low Clearance Centralizer and Method of Making Centralizer
11/19/2008CN201152154Y Ground drive screw pump down-hole pipe column rotation-proof anchoring device
11/18/2008US7452007 Hybrid threaded connection for expandable tubulars
11/18/2008US7451827 Anchoring device for casing procedures in well bores
11/18/2008US7451810 Kickover tool and selective mandrel system
11/18/2008CA2443852C Apparatus and methods for radially expanding a tubular member
11/18/2008CA2388360C Apparatus for and method of anchoring a first conduit to a second conduit
11/13/2008WO2008104898A3 Well wall gripping element
11/13/2008WO2008079782B1 Production actuated mud flow back valve
11/13/2008US20080277120 Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use
11/13/2008US20080277119 Method and Apparatus to Hydraulically Bypass a Well Tool
11/13/2008US20080277111 Downhole tubular expansion tool and method
11/13/2008CA2693433A1 A method and apparatus for subterranean fracturing
11/12/2008CN201148851Y Nonmetal water power anchor
11/12/2008CN201148850Y Suspension tools for branch well
11/12/2008CN101305155A Low carbon steel expandable tubular
11/11/2008US7448446 Thru tubing tool and method
11/06/2008WO2008076189B1 Downhole tool with slip releasing mechanism
11/06/2008WO2007124374A3 Well tools with actuators utilizing swellable materials
11/06/2008US20080271898 Pressure Isolation Plug for Horizontal Wellbore and Associated Methods
11/06/2008US20080271887 Method and system for performing operations and for improving production in wells
11/06/2008CA2684715A1 Drilling system with a barrel drilling head driven by a downhole tractor
11/04/2008CA2266367C Granular particle gripping surface
10/2008
10/30/2008WO2008130876A1 Running tool for expandable liner hanger and associated methods
10/30/2008WO2008130815A1 Casing coupler liner hanger mechanism
10/30/2008WO2008085612A3 System for lining a wellbore casing
10/30/2008WO2007121303A3 Apparatus for radial expansion of a tubular
10/30/2008US20080264650 Method And Apparatus To Position And Protect Control Lines Being Coupled To A Pipe String On A Rig
10/30/2008US20080264649 Modular well servicing combination unit
10/30/2008US20080264627 Permanent anchoring device
10/30/2008CA2684639A1 Anchor tool
10/30/2008CA2684547A1 Running tool for expandable liner hanger and associated methods
10/29/2008EP1984597A1 Method and system for controlling a downhole flow control device
10/29/2008CN201141288Y Replaced packing safety fastener
10/29/2008CN101297095A Extended reach drilling apparatus and method
10/29/2008CN101294488A Renewedly entrance guiding device for injection string and feeding-discharging tool
10/29/2008CN101294487A Renewedly entrance guiding device for injection string
10/28/2008US7441607 Circulation tool
10/23/2008WO2008060893B1 Large bore packer and methods of setting same
10/23/2008WO2007038446A3 Method and apparatus for coupling expandable tubular members
10/23/2008US20080257560 Running Tool for Expandable Liner Hanger and Associated Methods
10/23/2008US20080257558 Shifting apparatus and method
10/22/2008EP1315881B1 Method and system for perforating
10/22/2008CN201137474Y Deep hole ball-picking device
10/22/2008CN201137473Y Impact-proof loading lower crossbeam
10/21/2008US7438133 Apparatus and method for radially expanding and plastically deforming a tubular member
10/21/2008US7438130 Downhole actuating apparatus and method
10/21/2008CA2471614C Apparatus for translating a rotary expander tool downhole
10/16/2008WO2008124324A1 An apparatus and method for delivering a conductor downhole
10/16/2008WO2008070051B1 Restriction element trap for use with and actuation element of a downhole apparatus and method of use
10/16/2008WO2006020960A3 Expandable tubular
10/15/2008CN101285374A Method and apparatus for pipe-conveyed well logging
10/14/2008US7434627 Method and apparatus for friction reduction in a downhole tool
10/14/2008US7434626 Deep set safety valve
10/14/2008US7434622 Compliant cone for solid liner expansion
10/14/2008US7434617 Cup tool with three-part packoff for a high pressure mandrel
10/14/2008US7434616 System and method for fluid control in expandable tubing
10/14/2008US7434613 Surface controlled subsurface lateral branch safety valve
10/14/2008CA2496737C Gas lift mandrel
10/14/2008CA2496161C High expansion anchor system
10/14/2008CA2296108C Actuation system for a downhole tool
10/09/2008WO2008121653A2 Packer setting device for high-hydrostatic applications
10/09/2008WO2008119931A1 Ball seat assembly and method of controlling fluid flow through a hollow body
10/09/2008WO2008079777B1 Material sensitive downhole flow control device
10/09/2008US20080246273 Positive Indication of Latching in an Inner and Outer Tube Assembly, Especially for Downhole Assemblies
10/09/2008US20080245536 Apparatus and method for delivering a conductor downhole
10/09/2008US20080245535 Actuation tool
10/09/2008US20080245533 Fiber support arrangement for a downhole tool and method
10/08/2008EP1287227B1 Downhole window finder and method of using the same
10/08/2008CN201129151Y Anti-jack slips anchoring propulsion mechanism
10/08/2008CN201129150Y Down-hole hydraulic tool anti-midway actuating apparatus
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