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 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Patents for E21B 29 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground (5,744)
03/2010
03/30/2010US7686085 System, method, and apparatus for sleeved tensioner rod with annular adhesive retention
03/30/2010US7686083 Method and apparatus for cutting off a well
03/24/2010EP2165042A2 Multi-deployable subsea stack system
03/24/2010CN201428406Y Pilot mill tap tool for repairing casings
03/24/2010CN201428405Y Patch device for casing damaged well
03/24/2010CN101680282A Cladding method and expansion tool
03/23/2010US7681636 Pipe expander
03/23/2010US7681633 Method and apparatus for preventing spillage or loss of drill fluids
03/23/2010CA2563864C Expanding a tubular with a mounted sensor therein
03/18/2010US20100065282 Method of drilling out a reaming tool
03/18/2010US20100065277 Stabplate Connections
03/18/2010US20100065264 Rotor underreamer, section mill, casing cutter, casing scraper and drill string centralizer
03/16/2010US7677329 Method and device for controlling drilling fluid pressure
03/11/2010WO2010026215A2 Narrow well bore
03/11/2010US20100059229 Loose tube flying lead assembly
03/11/2010CA2735916A1 Narrow well bore
03/10/2010CN201420520Y Highly-effective settling cup
03/09/2010US7673690 Method and apparatus for dynamic application management in sub-sea well installations
03/09/2010CA2593346C Diameter based tracking for window milling system
03/04/2010US20100051847 Method and Apparatus for Severing Conduits
03/04/2010US20100051269 Bypass of damaged lines in subterranean wells
03/03/2010CN201416402Y Multiple-effect drifting device
03/03/2010CN201416401Y Hydraulic dual variable-diameter shaft back-drilling diameter expander
03/03/2010CN101660394A Single core cable oil field deep well dredging instrument
03/02/2010US7669659 System for preventing hydrate formation in chemical injection piping for subsea hydrocarbon production
03/02/2010CA2593622C Tubular expansion using a tapered collet
03/02/2010CA2356130C Method and apparatus for drilling and lining a wellbore
02/2010
02/25/2010US20100044045 Downhole Cutting Tool, Using a Single Piece Tubular with a Radially Displaceable Portion
02/25/2010US20100044030 Geometrically Optimized Expansion Cone
02/25/2010US20100044025 Fluid perforating/cutting nozzle
02/24/2010CN201412099Y Expansible sleeve assistance mechanism for safe expansion
02/24/2010CN201412098Y Bicentric forging and milling tool
02/23/2010US7665532 Pipeline
02/23/2010CA2635161C Downhole tubular string connections
02/23/2010CA2596201C Casing expansion and formation compression for permeability plane orientation
02/18/2010WO2010019675A2 Umbilical management system and method for subsea well intervention
02/18/2010WO2010019252A1 Consumable downhole tool
02/18/2010US20100038080 Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
02/17/2010CN101649728A Connection structure of I-shaped key expansion tube
02/16/2010US7661480 Method for hydraulic rupturing of downhole glass disc
02/16/2010US7661479 Subsea insulating shroud
02/16/2010US7661366 Signal conducting detonating cord
02/11/2010WO2006116635A3 Conductor pipe string deflector and method
02/11/2010US20100032151 Convertible downhole devices
02/10/2010CN201401142Y Horizontal well high-efficiency composite mill shoe
02/09/2010US7658228 High pressure system
02/09/2010CA2636835C A method and apparatus for creating a cemented lateral junction system
02/09/2010CA2573159C Shearing sealing ram
02/04/2010US20100025043 System and vessel for hydrocarbon production and method for intervention on subsea equipment
02/04/2010US20100025036 Method and Apparatus for Selective Treatment of a Perforated Casing
02/04/2010US20100024348 Method of expansion
02/02/2010US7654329 Dual-type plug for wellhead
02/02/2010CA2576483C Open hole expandable patch with anchor
02/02/2010CA2200937C One trip milling system
01/2010
01/27/2010CN201391261Y Variable bore drum-shaped roller fairway type shaper
01/26/2010US7650947 One trip system for circulating, perforating and treating
01/26/2010US7650942 Sub sea control and monitoring system
01/21/2010WO2009129116A3 Combination whipstock and seal bore diverter system
01/21/2010WO2009029821A3 Apparatus and method for estimating orientation of a liner during drilling of a wellbore
01/21/2010WO2009029816A3 Apparatus and method for estimating orientation of a liner during drilling of a wellbore
01/21/2010US20100012326 Lightweight and compact subsea intervention package and method
01/21/2010US20100012322 Whipstock
01/20/2010CN201386523Y Efficient drilling, grinding and milling integrated tool for well completion of horizontal well
01/14/2010US20100006298 High Capacity Wellhead Connector Having a Single Annular Piston
01/14/2010US20100006290 Methods of making multiple casing cuts
01/14/2010US20100006279 Intervention Tool with Operational Parameter Sensors
01/13/2010EP1812680B1 Improved valve
01/12/2010US7644768 Separation device for material from a drilling rig situated on the seabed
01/12/2010CA2407983C Radial expansion of tubular members
01/09/2010CA2671424A1 Methods of making multiple casing cuts
01/07/2010WO2009134143A3 Top mill tool
01/07/2010US20100000741 Method and apparatus to remove composite frac plugs from casings in oil and gas wells
01/06/2010EP2140101A2 Cladding method and expansion tool
01/06/2010EP2140096A1 Apparatus and methods of milling a restricted casing shoe
01/06/2010CN101619649A Non-explosive ring-shaped device for cutting metal pipes
01/05/2010US7640986 Device and method for reducing detonation gas pressure
01/05/2010US7640965 Creating a well abandonment plug
12/2009
12/31/2009US20090321085 Pump off junk mill
12/31/2009US20090321063 Reversible casing cutter
12/30/2009CN201372756Y Composite expander for repairing sleeve
12/30/2009CN201372755Y Drilling tool for spudding cement plug in composite sleeve for once
12/30/2009CN101614118A Clutch unlocking and rotating mechanism of underwater cutting tool
12/29/2009USRE41059 Expandable wellbore junction
12/29/2009US7637325 Subsea trees and caps for them
12/24/2009US20090314492 Protection Sleeve
12/24/2009US20090314489 Acoustic imaging while cutting
12/23/2009CN201367884Y Reusable drifting and pipe scraping integrated device
12/23/2009CN201367878Y Repairing tool of underground sleeve
12/23/2009CN100572743C Continuous expansion tube
12/22/2009US7635027 Method and apparatus for completing a horizontal well
12/22/2009CA2462115C Method and apparatus for expanding and separating tubulars in a wellbore
12/17/2009WO2009152532A1 Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
12/17/2009US20090308616 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell
12/17/2009US20090308605 Methodolgy and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
12/16/2009EP2132404A1 Downhole cutting tool and method
12/16/2009EP2132403A2 Drilling head for reborinq a stuck valve
12/16/2009CN201363115Y Repair device for worn internal drill pipe on deep-hole ejector drill
12/16/2009CN201363114Y Casing patch device
12/15/2009US7631698 Depth control in coiled tubing operations
12/15/2009CA2247045C Patch for fabric air tubes
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