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)
05/2003
05/14/2003CN2550482Y Double function tail tube suspending device
05/14/2003CN1418317A Mthod and system for performing operations and for improving production in wells
05/13/2003US6561289 Bottomhole assembly and methods of use
05/13/2003US6561288 Method and system for accessing subterranean deposits from the surface
05/13/2003US6561280 Method of injecting tubing down pipelines
05/13/2003US6561276 Bore selector
05/13/2003CA2156977C Improved methods and systems for subterranean multilateral well drilling and completion
05/08/2003US20030085035 Formation testing instrument having extensible housing
05/08/2003CA2734723A1 Orientation device for a core sample
05/07/2003EP1000221B1 Electro-hydraulic well tool actuator
05/07/2003CN2549166Y Self locked anchor with strong tension
05/07/2003CN1415840A Hydraulic inversive fastening set for well
05/06/2003US6557640 Lubrication and self-cleaning system for expansion mandrel
05/06/2003US6557631 Down hole tension/compression device for logging tools
05/05/2003CA2408425A1 Apparatus and method for downhole well equipment and process management, identification, and operation
05/02/2003EP1305500A2 Packer, setting tool for a packer and method for setting a packer
05/02/2003EP0842347B1 Device and process for the lining of a pipe branch, particularly in an oil well
05/01/2003WO2003036018A2 Downhole actuator and tool
05/01/2003US20030079886 Expandable tubing and method
05/01/2003US20030079885 Expandable tubing and method
05/01/2003US20030079881 Deepwater intervention system
05/01/2003CA2463610A1 Device for performing a downhole operation
04/2003
04/29/2003US6554076 Hydraulically activated selective circulating/reverse circulating packer assembly
04/29/2003US6554062 Anchor apparatus and method
04/24/2003WO2002038343A3 Apparatus and methods for separating and joining tubulars in a wellbore
04/24/2003US20030075361 Well system
04/24/2003US20030075342 Packer, setting tool for a packer and method for setting a packer
04/24/2003US20030075321 Downhole device
04/24/2003US20030075319 Auto-extending/retracting electrically isolated conductors in a segmented drill string
04/24/2003CA2643187A1 Methods and apparatus to control downhole tools
04/23/2003CN1413285A Three dimensional steerable system
04/22/2003US6550553 Boring apparatus
04/22/2003US6550551 Apparatus to actuate a downhole tool
04/22/2003US6550541 Valve assembly
04/22/2003US6550540 Mechanical anchor setting system
04/22/2003US6550539 Tie back and method for use with expandable tubulars
04/22/2003US6550322 Hydraulic strain sensor
04/22/2003CA2271509C Conveying a tool along a non-vertical well
04/17/2003WO2003031760A2 Non-seize material attachment for a drill slip system
04/17/2003US20030070802 Drillpipe sub
04/17/2003US20030070801 Small tubular window system
04/16/2003EP1203177A4 Expandable joint connector
04/16/2003CN2545357Y Self-sealing hydraulic anchor
04/15/2003US6547009 Low profile static wellhead plug
04/10/2003US20030067725 Distributed monitoring and protection system for a distributed power network
04/10/2003US20030066651 Apparatus and methods for flow control gravel pack
04/10/2003US20030066645 Method of and device for tracing hydraulic fractures, stimulations, cement jobs, etc. in oil and gas wells
04/09/2003EP1299616A1 Deformable member
04/09/2003EP1299615A1 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore
04/09/2003EP0996826B1 Hydraulic fluid actuator with metal to metal seals
04/09/2003CN1105404C Female wet connector socket
04/08/2003US6543553 Apparatus for use in drilling oil and gas production wells or water injection wells
04/08/2003US6543552 Method and apparatus for drilling and lining a wellbore
04/08/2003US6543536 Well reference apparatus and method
04/08/2003CA2044887C Horizontal inflatable tool
04/03/2003WO2003027717A1 Sonde
04/03/2003US20030062156 Downhole gauge carrier apparatus
04/02/2003EP1297241A1 Method for drilling and casing a wellbore with a pump down cement float
04/02/2003EP0960261B1 Tool and method for drilling a lateral well
04/02/2003EP0960260B1 Tool for making an opening in a tubular in a wellbore
04/02/2003EP0871817B1 Apparatus for setting a liner in a well casing
04/01/2003US6540025 Hydraulically metered travel joint method
04/01/2003CA2228415C One-trip well perforation/proppant fracturing apparatus and methods
03/2003
03/27/2003WO2002029201A9 Electro-mechanical wireline anchoring system
03/27/2003US20030058125 Reservoir management system and method
03/26/2003EP1295011A2 Apparatus and method to complete a multilateral junction
03/26/2003EP1295005A1 Milling of casing using coiled tubing
03/26/2003EP1032489B1 Method and apparatus for manufacturing an expandable slotted tube
03/25/2003US6536532 Lock ring for pipe slip pick-up ring
03/25/2003US6536531 Apparatus and methods for orientation of a tubular string in a non-vertical wellbore
03/25/2003US6536530 Hydraulic control system for downhole tools
03/25/2003US6536524 Method and system for performing a casing conveyed perforating process and other operations in wells
03/25/2003CA2059995C Method and system for deploying submersible pump using reeled tubing
03/20/2003WO2003023178A2 Adjustable expansion cone assembly
03/20/2003US20030051919 Three-dimensional steering tool for controlled downhole extended-reach directional drilling
03/20/2003US20030051880 Method and apparatus for drilling a plurality of offshore underwater wells
03/19/2003CN1403681A Well pipe string withdrawing unit without killing well
03/18/2003US6533040 Multi-function apparatus for adding a branch well sealed liner and connector to an existing cased well at low cost
03/18/2003US6532839 Apparatus for the remote measurement of physical parameters
03/18/2003CA2234386C Method and apparatus for cementing a well
03/13/2003WO2003021075A1 Remote closed system hydraulic actuator system
03/13/2003US20030048197 Sequential hydraulic control system for use in a subterranean well
03/13/2003US20030047324 Low profile static wellhead plug
03/13/2003US20030047320 Method and apparatus for expandable liner hanger with bypass
03/13/2003US20030047317 Deep-set subsurface safety valve assembly
03/13/2003US20030047307 Inflatable gas bag for use as a borehole plug
03/12/2003EP1290311A1 Sequential hydraulic control system for use in subterranean well
03/11/2003US6531694 Wellbores utilizing fiber optic-based sensors and operating devices
03/11/2003US6530432 Oil well tubing injection system and method
03/06/2003WO2003018957A1 Expandable packer
03/06/2003WO2003018956A1 Drillable inflatable packer and methods of use
03/06/2003WO2003018955A1 Downhole actuation system utilizing electroactive fluids
03/06/2003US20030042024 Methods and associated apparatus for drilling and completing a wellbore junction
03/05/2003EP1287230A2 Method and system for performing operations and for improving production in wells
03/05/2003EP1287227A1 Downhole window finder and method of using the same
03/05/2003CN1401045A Recirculatable ball drop release device for lateral oilwell drilling applications
03/04/2003US6527057 Wiper plug delivery apparatus
03/04/2003US6527049 Apparatus and method for isolating a section of tubing
02/2003
02/27/2003WO2003016671A2 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles
02/27/2003US20030037932 Drillable inflatable packer & methods of use
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