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7617868 |
Liner anchor for expandable casing strings and method of use
Expandable casing has an expandable slip used for completion of a mono-diameter wellbore. The expandable casing is run through the upper casing and has an upper end that overlaps a lower end of the...
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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...
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7607485 |
Tubing hanger and wellhead housing with mating tubing annulus passages
A subsea wellhead assembly has a tubing annulus path that extends partly through the tubing hanger and partly through the wellhead housing. A tubing hanger tubing annulus passage extends through...
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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...
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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...
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7604047 |
Universal tubing hanger suspension assembly and well completion system and method of using same
A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is...
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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...
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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...
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7575059 |
Sonde deployment
Apparatus is disclosed for securing a sonde to the inner wall of a well casing ( 3 ). The sonde ( 2 ) comprises a clamp ( 2 ) expandable from a contracted position to an expanded position in which...
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7559371 |
Method and apparatus for centralizing through tubing milling assemblies
A through tubing centralizer is delivered below the tubing and expanded against a surrounding tubular for fixation. In a window milling through tubing application, a whipstock is delivered through...
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7552779 |
Downhole method using multiple plugs
A system allows for sequential treatment of sections of a zone. Access to each portion can be with a sliding sleeve that has a specific internal profile. Pump down plugs can be used that have a...
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7552762 |
Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device
Wellhead assembly and method for providing a power connection to a downhole electrical device, such as a heater. Pressure-containing wellhead body members enclose a vertical wellbore and support...
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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...
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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...
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7537060 |
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...
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7530401 |
Tool trap assembly and method
An apparatus ( 100 ) and a method to prevent undesired objects (not shown) when communication conduit (not shown) is disposed therethrough. The apparatus ( 100 ) and method include a flapper...
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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...
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7516782 |
Self-anchoring device with force amplification
A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable...
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7506687 |
System for radially expanding a tubular member
A system for radially expanding a tubular member.
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7497268 |
Drill pipe elevators and methods of moving drill pipe
A drill pipe elevator includes first and second separable pieces. Each piece comprises a drill pipe-receiving groove, and a pair of diametrically opposed projections with each projection forming...
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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...
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7448444 |
Tubing saver rotator and method for using same
A tubing rotator assembly that attaches to a casing head to suspend and rotate a tubing string in an oil well. The tubing assembly includes a rotation surface, such as a bearing, in which a tubing...
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7441606 |
Expandable fluted liner hanger and packer system
Methods and apparatus create an attachment and a seal between two tubular members in a wellbore. An expandable assembly includes a packer and liner hanger to be expanded into a surrounding tubular....
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7431096 |
Embedded flex-lock slip liner hanger
A liner hanger includes an annular slip seat that radially surrounds a section of the liner being hung. The slip seat contains a plurality of windows that each accommodates at least one...
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7428933 |
Latchable hanger assembly and method for liner drilling and completion
Methods and systems for conducting liner drilling and subsequent completion of the drilled section by cementing and anchoring the liner into place. The methods and systems prevent the liner from...
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7428927 |
Cement float and method for drilling and casing a wellbore with a pump down cement float
A cement float collar is made for pumping downhole and into engagement with a groove formed in the casing, called the profile nipple. As such, no restriction is needed in the casing for accepting...
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7422069 |
Telescoping centralizers for expandable tubulars
A method of centralizing tubulars prior to cementing and subsequent expansion involves using a plurality of telescoping cylinders whose leading or trailing end is closed and which are extended by...
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7419009 |
Apparatus for radially expanding and plastically deforming a tubular member
An apparatus and method according to which a tubular member is radially expanded and plastically deformed.
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7419001 |
Universal tubing hanger suspension assembly and well completion system and method of using same
A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is...
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7410000 |
Mono-diameter wellbore casing
A mono-diameter wellbore casing. A tubular liner and an expansion cone are positioned within a new section of a wellbore with the tubular liner in an overlapping relationship with a pre-existing...
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7407013 |
Expandable well screen with a stable base
An expandable well screen system includes a screen assembly having a base pipe, a strut, and a screen expandable from a retracted position to an expanded position in the wellbore; and an insert...
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7404445 |
Perimetrically loading collet
A perimetrically acting collet includes a body and at least one mating profile opening in the body. A plurality of resilient members located adjacent one side of the at least one mating profile...
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7398833 |
Heavy load carry slips and method
A tubular handling device. The device includes a plurality of slips, and wherein the slips have an arcuate inner face that has a longitudinally disposed slot and a ledge therein. The device further...
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7392864 |
Slip spool assembly and method of using same
A slip spool includes radially disposed actuators for radially moving slip blocks between a loose encirclement position in which they surround the tubing string and a cached position in which the...
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7383889 |
Mono diameter wellbore casing
An apparatus and method for forming a mono diameter wellbore casing.
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7383888 |
Expansion pig
A tool for radially expanding casing having a tool body that includes a proximal end, a distal end, and an outer surface. The tool includes at least one hydraulic channel disposed axially. The at...
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7380594 |
Method of installing a tubular assembly in a wellbore
A method of installing an expandable tubular assembly in a wellbore, the tubular assembly including a plurality of expandable tubular elements, comprising: installing a first tubular element in the...
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7377325 |
Centraliser
There is disclosed an expandable centraliser for locating a body within a borehole, and a method of centralising tubing in a borehole. In an embodiment of the invention, an expandable centraliser...
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7373988 |
Liner running system and method
A liner running system for placing a liner in a well bore comprises a latch sleeve connected to the liner and a running tool releasably attached to the latch sleeve. The latch sleeve has a wall...
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7367410 |
Method and device for liner system
Method for drilling and lining a well wherein at least one liner ( 1, 2, 32 ) with a larger external diameter than the substantial part of a drilling riser ( 10 ) is pre-installed at a point below...
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7367404 |
Tubing seal
A method of forming a seal between two tubular members comprising providing a first tubular member having an internal surface and an external surface describing a first diameter, with a recess in...
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7367391 |
Liner anchor for expandable casing strings and method of use
Expandable casing has an expandable slip used for completion of a mono-diameter wellbore. The expandable casing is run through the upper casing and has an upper end that overlaps a lower end of the...
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7363985 |
Hydraulic latch for capillary tubing string
An hydraulic latch for selectively securing and, when necessary, automatically releasing capillary tubing suspended in a well bore in a manner affording clearance of a subsurface safety valve...
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7357185 |
Subsea tubing hanger assembly for an oil or gas well
A subsea tubing hanger assembly is disclosed which comprises a tubing hanger ( 12 ) having a plurality of conduits ( 14 ). A pup joint ( 16 ) is connected to the hanger ( 12 ) and a shroud ( 20 )...
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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...
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7350583 |
One trip string tensioning and hanger securing method
A running tool delivers a string through a wellhead in the same trip as a hanger with a seal and locking assembly. The string is secured downhole and the running tool is manipulated to release a...
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7347273 |
Bottom hold completion system for an intermittent plunger
A bottom hole assembly for an intermittent lift plunger system includes a retrievable downhole anchor which may be set and reset in one downhole trip, a retrievable packing device, and a plunger stop.
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7341110 |
Slotted slip element for expandable packer
A packer device includes a central packer mandrel and a radially surrounding expansion mandrel that can expand radially. At least one slip mandrel carrying wickers surrounds the expansion mandrel...
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7334642 |
Constant force actuator
A radially expandable tool is provided that includes a tool body and a radially moveable member coupled to the tool body and in force receiving relation to a constant force actuator. The radially...
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7325600 |
Coil tubing hanger and method of using same
A coil tubing hanger includes a hanger body having a hanger base with a lower end for connection to a well tree, an upper end for connection of a hanger cap and an internal cylindrical cavity for...
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