Matches 1 - 50 out of 405 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
7624808 Expandable ramp gripper  
A gripper for use in a downhole tool is provided. The gripper can include an actuator, a toe assembly, and an expandable assembly. The toe assembly can be a leaf-spring like elongate continuous...
7614449 Tangentially-loaded high-load retrievable slip system  
A slip system includes a set of drive slips having wickers thereon, substantially all of which being truncated in cross-section; a set of gripping slips operatively interengagable with the set of...
7607497 Roller link toggle gripper and downhole tractor  
An expandable gripper assembly may be configured for anchoring a tool in a passage. The expandable gripper assembly includes first, second, and third pivotally connected links that are coupled to a...
7604060 Gripper assembly for downhole tools  
A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible...
7604061 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore  
A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting...
7588078 Extended reach anchor  
An anchor features a mandrel with ramps that extent through apertures in slip segments giving the slips a longer ramp to ride out on in a radial direction. The slip segments have ramps adjacent the...
7581595 Coupler retained liner hanger mechanism and methods of setting a hanger inside a wellbore  
A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. A setting...
7559366 Flex-lock metal seal system for wellhead members  
A wellhead seal assembly forms a metal-to-metal seal between the inner and outer wellhead members. A metal seal ring has inner and outer conical walls separated by a tapered slot. An energizing...
7556092 Flow control system for an apparatus for radially expanding tubular members  
A flow control system for an apparatus for radially expanding tubular members.
7546881 Apparatus for radially expanding and plastically deforming a tubular member  
An apparatus for radially expanding and plastically deforming a tubular member. In some embodiments, the apparatus includes a support member and an adjustable expansion device coupled thereto. The...
7546872 Liner hanger  
An improved liner hanger comprises a mandrel having a piston housing and a plurality of spring slots disposed on the outer wall surface of the mandrel. Each spring slot having at least one spring...
7546871 Downhole tool  
A device that relates to a downhole tool. The tool comprising, a tool body having first and second support portions, and at least one extendable assembly pivotally mounted between the first and...
7540329 Casing coupler liner hanger mechanism  
A liner hanger has a housing with a pocket disposed on an inner wall surface and a slip slidingly engaged within the pocket. The liner hanger housing is secured in the string of casing. Both a...
7516791 Configurable wellbore zone isolation system and related systems  
An apparatus for providing zonal isolation in a wellbore includes a plurality of interlocking sealing elements having anchor elements at the opposing ends. Each anchor element sealingly engages a...
7469750 Expandable seal  
In one aspect, the present invention provides a sealing apparatus for use in a tubular member. In one embodiment, the sealing apparatus includes an expandable sleeve and an expandable a...
7451827 Anchoring device for casing procedures in well bores  
A device for anchoring a casing into a well bore, the device comprising an anchor body mounted in a tool string and a plurality of radially expanding fingers that are mounted in a fingers assembly...
7434622 Compliant cone for solid liner expansion  
An expander tool includes segments capable of deflecting inward in response to a restriction encountered while expanding a tubular downhole. The expander tool includes an inner mandrel having a...
7389823 Retrievable bridge plug  
A method and apparatus for a bridge plug for isolating portions of a downhole casing is provided comprising a retrievable upper mandrel assembly and a lower mandrel assembly coupled to the upper...
7367390 Slip energized by longitudinal shrinkage  
A slip for an expanding hanger or patch is disclosed. The slip is mounted over the hanger body and has an internal profile that nests within a mating profile on the exterior of the hanger. When a...
7350588 Method and apparatus for supporting a tubular in a bore  
A method of supporting a tubular within a bore including the steps of at least partially expanding a sleeve into contact with a bore wall to secure the sleeve within the bore, and engaging a...
7275593 Gripper assembly for downhole tools  
A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible...
7273110 Sealing element for pipes and methods for using  
A sealing device for shutting down a pipe, comprising an expandable cylindrical sleeve ( 1 ), which is designed with a conical interior, and is provided with radially through-going slots ( 3 )...
7252143 Method and apparatus for anchoring tool in borehole conduit  
A free point tool has at least one sensor to measure deformation of a stuck conduit in a borehole. A set of anchors is located adjacent to and on each side of the sensor. The anchors include anchor...
7234532 Expansion apparatus and method  
An expansion apparatus for expanding a portion of a tubular comprises at least two expansion members adapted for selective deployment against a wall of a tubular. The expansion apparatus may be...
7222669 Method of repair of collapsed or damaged tubulars downhole  
A method of repairing tubulars downhole is described. A swage is secured to a force magnification tool, which is, in turn, supported by an anchor tool. Applied pressure sets the anchor when the...
7178589 Thru tubing tool and method  
A downhole tool is disclosed that functions as an expandable anchoring tool, capable of passing through a restricted wellbore diameter while in a collapsed position and thereafter translating to an...
7156182 Method and apparatus for one trip tubular expansion  
A one trip system for expanding a tubular that is solid or perforated or a screen comprises a downhole assembly that features a hydraulic anchor that can be set, released and repositioned to repeat...
7140430 Expander for expanding a tubular element  
An expander for radially expanding a tubular element, comprising an expander body connectable to an elongate member for moving the expander in axial direction through the tubular element, the...
7134490 Through bore wellhead hanger system  
A wellhead hanger system that allows the use of either of two casing hangers depending upon whether the casing string to be suspended becomes stuck during installation and cannot be lowered to its...
7121351 Apparatus and method for completing a wellbore  
The present invention generally relates to an apparatus and method for expanding a tubular body in a wellbore. In one aspect, a method includes running the tubular body into the wellbore, the...
7117941 Variable diameter expansion tool and expansion methods  
The present inventions relate to improved apparatus and methods for radially expanding tubulars, such as tubing, casing and sand-control screen assemblies in a subterranean oil or gas well, and...
7096938 Slip energized by longitudinal shrinkage  
A slip for an expanding hanger or patch is disclosed. The slip is mounted over the hanger body and has an internal profile that nests within a mating profile on the exterior of the hanger. When a...
7048047 Gripper assembly for downhole tools  
A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible...
7044218 Apparatus for radially expanding tubular members  
An apparatus for radially expanding tubular members.
6935423 Borehole retention device  
A borehole retention assembly for anchoring a well tool within a wellbore including a gripping assembly and an actuation assembly. The gripping assembly includes expandable members such that upon...
6926087 Electro-mechanical wireline anchoring system and method  
An electro-mechanical wireline assembly as shown for anchoring a wireline tool string in place during a wellbore under balanced well conditions. The assembly includes an upper connection for...
6899183 Casing attachment method and apparatus  
A method and apparatus to affix a tool downhole in a cased wellbore, one embodiment comprising a tubular body with a slot along its length. A portion of the slot is V-shaped to accommodate a wedge...
6880632 Calibration assembly for an interactive swage  
A swaging tool is configured to drive the swage up a ramp until a series of dogs engages the inside wall of an outer tubular member. At that point the swage will be at the necessary position on the...
6877567 Expansion set liner hanger and method of setting same  
A hydraulic liner hanger comprises a tubular body and a plurality of slips disposed radially around the outer surface of the body. In one arrangement, each slip has wickers for engaging the inner...
6823938 Locator and holddown tool for casing hanger running tool  
A tool is used for installing a string of casing in a well. The casing is supported by a casing hanger that lands on a landing shoulder of the wellhead assembly. A running mechanism is releasably...
6793022 Spring wire composite corrosion resistant anchoring device  
A slip for use in the anchoring device on a well tool has a wedge shaped body and teeth on the exterior of the body. The teeth are formed from a ring segment of spring steel material mounted on and...
6761233 Apparatus for propulsion in elongated cavities  
An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed. The apparatus is characterized by comprising a central rotating part comprising an inclined wheel...
6722427 Wear-resistant, variable diameter expansion tool and expansion methods  
The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may...
6722428 Apparatus for suspending a pipe within a well casing  
An apparatus suspends a pipe from the lower end of a tubular body positioned concentrically within an outer casing. Pockets are formed about the outer circumference of the body, each to receive a...
6719063 Downhole gripping tool and method  
A gripping tool 10 may be positioned in a well on a running string RS to at least temporarily secure the gripping tool to a borehole wall. The gripping tool includes a drag member 72 , a...
6715559 Gripper assembly for downhole tractors  
A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible...
6708767 Downhole tubing  
A downhole apparatus comprises a plurality of tubing sections. Each tubing section has substantially cylindrical portions initially of a first diameter for coupling to end portions of adjacent...
6702014 Deflector tool for deflecting items through a window in borehole casing  
A well bore deflector tool which is used primarily for deflecting tools, lining and the like through a window which has been milled in the side of a well bore casing includes a deflector face ( 3 )...
6691788 Retrievable packer having a positively operated support ring  
A retrievable packer ( 50 ) for establishing a sealing and gripping engagement between a tubing string and a well casing ( 34 ) disposed in a wellbore is disclosed. The retrievable packer ( 50 )...
6651747 Downhole anchoring tools conveyed by non-rigid carriers  
An apparatus and method provides an anchoring apparatus for use in a wellbore that comprises a gripping assembly and an actuation assembly. In one arrangement, the actuation assembly includes a...
Matches 1 - 50 out of 405 1 2 3 4 5 6 7 8 9 >