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)
01/2008
01/08/2008CA2296888C Wye block having automatically aligned guide structure
01/07/2008CA2592361A1 Pulley for assisting in the take-up/deployment of a hetereogeneous system behaving differently according to two successive states, and corresponding device
01/02/2008EP1873349A1 Reciprocating pumping assembly and method with hollow sucker rods and no production tubing
01/02/2008CN200999598Y Oil well and water well testing well head trapper
01/02/2008CN101096906A Cement through side pocket mandrel
01/01/2008USRE39970 Downhole adjustable bent housing for directional drilling
01/01/2008US7314101 Inner core barrel head assembly for core tube within a drill string
12/2007
12/27/2007WO2007076078A3 Expandable, inflatable packer
12/27/2007WO2006127981A3 Expandable liner hanger system and method
12/27/2007US20070295507 Valve Seat
12/26/2007EP1619352A9 Method and system for accessing subterranean deposits from the surface
12/25/2007US7311154 Line slack compensator
12/25/2007US7311151 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons
12/25/2007US7311143 Method and apparatus for generation of acoustic shear waves through casing using physical coupling of vibrating magnets
12/21/2007WO2007146925A1 Implosive actuation of downhole tools
12/21/2007WO2007145733A1 Compressible objects having a predetermined internal pressure combined with a drilling to form a variable density drilling mud
12/21/2007CA2652406A1 Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud
12/20/2007US20070289748 System and method for low-pressure well completion
12/20/2007US20070289745 Plug Setting and Retrieving Apparatus
12/19/2007CN101089358A Method and apparatus to facilitate wet or dry control line connection for the downhole environment
12/19/2007CN100356033C Drillable thin-walled hydraulic release device for liner and operation method thereof
12/18/2007US7308945 Packing tool and method
12/18/2007US7308944 Expander tool for use in a wellbore
12/18/2007CA2485210C Packer retriever
12/18/2007CA2447565C Downhole motor locking assembly and method
12/18/2007CA2424064C Mechanism that assists tractoring on uniform and non-uniform surfaces
12/18/2007CA2343910C Improved ball valve
12/13/2007WO2007141535A1 Consumable downhole tools
12/13/2007WO2007140612A1 Tools and methods useful with wellbore reverse circulation
12/13/2007WO2007113753A3 Well servicing methods and systems
12/13/2007US20070284118 Controlling Actuation of Tools in a Wellbore with a Phase Change Material
12/13/2007US20070284113 System And Method For Rigging Up Well Workover Equipment
12/13/2007CA2654429A1 Manipulator tool and tool catcher useful with wellbore reverse circulation
12/12/2007CN101087926A Expansion pig
12/11/2007US7306043 System and method to control multiple tools through one control line
12/11/2007US7306034 Gripping assembly for expandable tubulars
12/11/2007CA2444454C Pressure compensated pilot operated check valve
12/06/2007WO2007140310A1 Shear type circulation valve and swivel with open port reciprocating feature
12/06/2007WO2007140266A2 Configurable wellbore zone isolation system and related methods
12/06/2007US20070277972 Expansion cone and system
12/06/2007US20070277971 Adjustable Swage
12/05/2007EP1212510B1 Downhole latch assembly and method of using the same
12/04/2007US7303020 Interventionless oil tool actuator with floating piston and method of use
12/04/2007CA2504578C Force transfer apparatus to assist release of loaded member
12/04/2007CA2452125C Method and apparatus for positioning and repositioning a plurality of service tools downhole without rotation
12/04/2007CA2378518C Downhole anchoring tools conveyed by non-rigid carriers
12/04/2007CA2323654C Wellbore antennae system and method
12/02/2007CA2568945A1 Low pressure-set packer
11/2007
11/29/2007WO2003097987A3 A device for a long well tool
11/29/2007US20070272420 Downhole tool with C-ring closure seat
11/29/2007US20070272419 Threaded Connection for Expandable Tubulars
11/29/2007US20070272418 Casing apparatus and method for casing or reparing a well, borehole, or conduit
11/29/2007US20070272412 Downhole Tool
11/29/2007US20070272405 Ribbed sealing element and method of use
11/28/2007EP1210498B1 Smart shuttles to complete oil and gas wells
11/28/2007CN200982176Y Single ball type hydraulic releasing tail pipe hanger
11/28/2007CN200982169Y Sectional pressing type oil pipe discharging anchoring device
11/27/2007US7299881 Radial expansion of tubular members
11/27/2007CA2524554C Electrical energy from a wellbore light cell
11/27/2007CA2414428C Liner hanger with standoffs
11/27/2007CA2264632C Wellbores utilizing fiber optic-based sensors and operating devices
11/27/2007CA2260191C Method for expanding a steel tubing and well with such a tubing
11/27/2007CA2188540C Hydraulic power stroker for shifting of sliding sleeves
11/22/2007US20070267200 Kickover Tool and Selective Mandrel System
11/22/2007US20070267199 Apparatus and methods to protect connections
11/22/2007CA2589600A1 Methods and apparatus for drilling with casing
11/21/2007EP1856372A1 An apparatus and a method for deployment of a well intervention tool string into a subsea well
11/21/2007CN200978661Y Casing head slip releasing control tool
11/20/2007US7296639 Wellstring assembly
11/20/2007US7296631 System and method for low-pressure well completion
11/20/2007CA2489235C Plug concealment and diversion tool
11/20/2007CA2371133C Method of creating a wellbore
11/20/2007CA2363857C Concentric casing jack
11/18/2007CA2583922A1 Kickover tool and selective mandrel system
11/15/2007WO2002079604A3 Expandable downhole tool
11/15/2007US20070261860 Controlled shared load casing jack system
11/15/2007US20070261840 Exit window milling assembly with improved restraining force
11/14/2007EP1640560A4 Device for arranging a shut-off valve in a well
11/13/2007US7293615 Earth boring system
11/13/2007CA2375808C Method of deploying an electrically driven fluid transducer system in a well
11/13/2007CA2357376C Tubing string anchoring tool
11/08/2007US20070256827 Anchoring system and method
11/07/2007CN100347398C Wellstring assembly
11/06/2007US7290617 Running a completion assembly without killing a well
11/06/2007US7290605 Seal receptacle using expandable liner hanger
11/06/2007US7290603 Downhole plug
11/06/2007CA2418530C Method and system for performing an operation in a well
11/01/2007WO2007123417A1 A method and rotary device for mechanical rotational orientation of a well tractor
11/01/2007WO2007091218A3 Self-anchoring device with force amplification
11/01/2007US20070251704 Liner hanger tool with re-latchable cementing bushing
10/2007
10/31/2007CN200968189Y Spiral gun releasing device
10/31/2007CN200968188Y Perforation bullet rack with loading holder
10/30/2007US7287591 Primary electro-mechanical initiating dump bailer device and method of use
10/30/2007US7287584 Anchoring device for a wellbore tool
10/30/2007CA2455202C Downhole actuator apparatus and method
10/30/2007CA2440624C System and method for controlling downhole tools
10/30/2007CA2270268C Orienting tool and method
10/30/2007CA2247844C A sinker bar for cable-operated well apparatus in a hydrocarbon well
10/25/2007WO2007121303A2 Apparatus for radial expansion of a tubular
10/25/2007US20070246217 Downhole Swivel Joint Assembly and Method of Using Said Swivel Joint Assembly
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