Class 166/88.2 - Slip type well anchor

Subclass of Class 166 - Wells
Definition: Inner member anchor with lateral port wherein the means
No. of patents: 39
Last issue date: 01/27/2009

Number	Title	Issue Date
7481269	Hybrid wellhead system and method of use A hybrid wellhead system is assembled using a plurality of threaded unions, such as spanner nuts or hammer unions, for securing respective tubular heads and a flanged connection for securing a flow control stack to a top of a tubing head spool. The tubing head spool...	01/27/2009
7455105	Apparatus and method for installing coiled tubing in a well A tubing hanger apparatus and method for installing coiled tubing in oil and gas wells utilizes a tubing head assembly having a vertical flow passage therethrough, a hydraulically operated piston in an upper portion of the flow passage; a double tapered slip cup and...	11/25/2008
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 slip blocks clear an axial passage of the slip spool. The slip spool f...	07/01/2008
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 receiving an annular, externally actuated, pack-off element for select...	02/05/2008
7322407	Wellhead isolation tool and method of fracturing a well A wellhead assembly is provided including a casing and a tubular member mounted over the casing. A flange extends from the tubular member. A generally elongated annular member is provided in the tubular member. The generally elongated annular member has a first end ...	01/29/2008
7258171	Internal riser rotating control head A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing....	08/21/2007
7197963	Apparatus for clamping a drilling tubular against rotation An apparatus that can be used during drilling operations for the purposes of clamping and holding drilling tubulars is disclosed. The embodiments relate to machinery that clamp and hold drilling tubulars to allow assembly to a specified torque or disassembly of the ...	04/03/2007
7159669	Internal riser rotating control head A holding member provides for releasably positioning a rotating control head assembly in a subsea housing. The holding member engages an internal formation in the subsea housing to resist movement of the rotating control head assembly relative to the subsea housing....	01/09/2007
7143849	Flush mounted spider A gripping apparatus for supporting a tubular includes a longitudinal opening extending therethrough. A bowl is formed on an inner wall of the housing to provide an incline surface for one or more gripping members. As the gripping members are move down along the inc...	12/05/2006
7128143	Externally activated seal system for wellhead A method and apparatus for a seal assembly for a unitized wellhead system for land or platform applications utilizes a friction grip technology to create maintainable metal-to-metal seals with finely-controlled contact stresses, lock-down casing and tubing hangers, ...	10/31/2006
7111688	Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes in an oil or gas well. The clamp has two axially movable tapered components which can be pulled over one another in an axial direction to provide a contraction of internal diameter which grips...	09/26/2006
7108058	Packing assembly for rotary drilling swivels and pumps having rotating shafts A packing assembly for use with a rotary drilling swivel having a cylindrical wash pipe comprising a housing assembly including a packing gland forming a sealing assembly chamber around the wash pipe, the packing gland including an injection port in open communicati...	09/19/2006
7055609	Handling and assembly equipment and method A handling and assembly system and method for use in deploying tubing in a subterranean environment. A framework is used to linearly engage sequential tubular members as a tubing string is formed and run into a subterranean environment. The system also facilitates t...	06/06/2006
7032690	Apparatus and method for visually detecting wear to insert bowls, bushings, and spiders An insert bowl, bushing, or spider includes a bowl having a central bore defined by an inner surface having an upper tapered section for engaging slips supporting a work string and a lower section. A wear indicator, such as a groove or substantially horizontal groov...	04/25/2006
6962205	Subsea wellhead landing clamp and slip bowl assembly A clamp for supporting a subsea wellhead and attached casing string preparatory to installing same in a well, and slip bowl assembly for running a drill pipe cementing string inside the casing string. The clamp comprises two hinged together clamp halves with a conne...	11/08/2005
6955225	Method of and apparatus for securing capillary tubing in a wellhead A body having a bore therethrough for insertion of capillary tubing. A first means slidably coupled into the bore of the body frictionally restrains movement of the tubing by hydraulically engaging the periphery of the tubing with an elastomeric compressible sealing...	10/18/2005
6948565	Slip spool and method of using same A slip spool for selectively supporting a tubing string suspended in a wellbore can be mounted to a wellhead. The slip spool has an axial passage that is aligned with the wellbore, and at least two radial passages extending through a side wall of the slip spool and ...	09/27/2005
6901835	Cone and charge extractor An extractor and method for safely releasing an explosive and liner from a munition is disclosed. An exemplary extractor includes a support device connected to the casing of the munition and adapted to stabilize the munition as the explosive is released from the dom...	06/07/2005
6892835	Flush mounted spider A gripping apparatus for supporting a tubular includes a longitudinal opening extending therethrough. A bowl is formed on an inner wall of the housing to provide an incline surface for one or more gripping members. As the gripping members are move down along the inc...	05/17/2005
6695064	Slip spool and method of using same A slip spool for selectively supporting or snubbing a tubing string suspended in a wellbore can be mounted to a wellhead. The slip spool has an axial passage to be aligned with the wellbore and at least two radial passages extending through a side wall of...	02/24/2004
6662868	Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes in an oil or gas well. The clamp has two axially movable tapered components which can be pulled over one another in an axial direction to provide a contraction of internal diameter ...	12/16/2003
6644401	Slip type casing hanger with integral high pressure isolation plate The invention relates to a slip type casing hanger assembly, having a hanger body with an annulus, a casing head disposed around casing for supporting and transferring weight of the casing string to the casing head. The slip type casing hanger assembly fu...	11/11/2003
6588510	Coil tubing hanger system A coil tubing hanger system and a method of installing such system is provided. The coil tubing hanger system comprises a body having an axial opening there through. A slip bowl having a base and housing a slip that can be retained in a first position spa...	07/08/2003
6499537	Well reference apparatus and method The well reference apparatus and method of the present invention includes a reference member preferably permanently installed within the borehole at a preferred depth and orientation in one trip into the well. The reference member provides a permanent ref...	12/31/2002
6192981	Coiled tubing hanger assembly A coiled tubing hanger assembly for supporting coiled tubing in a well including, as a first element, a mechanically-assisted slip assembly characterized by multiple slip segments inserted in a tapered slip bowl located in the midsection of a coiled tubin...	02/27/2001
6095242	Casing hanger A casing hanger assembly is disclosed which includes a bottom member which centralizes a casing string within a casing head and a top member of a conventional slip-type casing hanger design. The bottom member functions to rigidly centralize the casing str...	08/01/2000
6092596	Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes 2,4 in an oil or gas well. The clamp has two axially movable tapered components 6,7 which can be pulled over one another in an axial direction to provide a contraction of internal d...	07/25/2000
6015009	Casing and tubing hanger system A hanger system for supporting production casing and coiled tubing in a surface pipe has a casing head supported on the surface pipe and has a vertical opening therethrough with an internal circumferential load shoulder. A casing hanger is supported withi...	01/18/2000
5996695	Method and apparatus for sealing between casing and wellhead connector structure A method and apparatus for installing a metal annular seal (54) between the outer rough surface of a casing member (11) which has had a portion thereof cutaway with a remaining portion projecting upwardly from the upper end of a casing head (12). A slip i...	12/07/1999
5988273	Coiled tubing completion system A coiled tubing completion system has a gripping mechanism on a lower end which land in a tubing hanger and engage coiled tubing extending through the tubing hanger. A tubular member is located above the gripping member and receives the upper end of the t...	11/23/1999
5566758	Method and apparatus for drilling wells in to geothermal formations The present disclosure sets forth the method and apparatus for installing a casing in a geothermal well. Procedurally, the well is drilled toward but not into the geothermal zone of interest, a surface conductor pipe is cemented in place, a casing sting i...	10/22/1996
5544706	Retrievable sealing plug coil tubing suspension device A retrievable sealing plug coil tubing suspension device for supporting coil tubing which supports a motor-pump assembly deployed at operating well depth in a well. The coil tubing houses the power cable connected to the motor of the motor-pump assembly. ...	08/13/1996
5526877	Oil well head cleaning system A system for cleaning a string of an oil well that includes a washing unit having a first section and a second section that are placed atop an oil well head. The washing unit includes a center opening larger than the outside diameter of the string and inc...	06/18/1996
5490565	Casing seal and spool for use in fracturing wells A casing seal and casing spool for providing a high pressure seal of the casing pipe of a well during fracturing operations. The casing seal includes a sleeve, a pressure-reactive ring seal, a retainer ring, a split ring and a lock ring. The sleeve has a ...	02/13/1996
5092400	Coiled tubing hanger The invention relates to a coiled, endless, tubing hanger, for positive control of well bore pressure. A hanger tool is provided for use with coiled tubing strings when the strings are being installed in new or existing cased well bores. Means are provide...	03/03/1992
4936382	Drive pipe adaptor An adaptor assembly for attaching equipment to a casing head by means of pipe slips or other means of attachment integrated with the assembly, and having an elastomeric seal to contain leakage....	06/26/1990
4646827	Tubing anchor assembly A tubing anchor assembly for seating and supporting coiled tubing in a tubing head, which includes as a first element, a slip assembly characterized by multiple slip segments inserted in the slip bowl of the tubing head and each provided with a bevelled t...	03/03/1987
4554971	Tubing anchor assembly A tubing anchor assembly for seating and supporting coiled tubing in a tubing head, which includes as a first element, multiple slip segments inserted in the slip bowl of the tubing head and each provided with a vertically oriented dove tail slot, and as ...	11/26/1985
4541490	Adapter for a wellhead Improved wellhead structure and method for modification of commercially operating wellheads. Screwed type wellheads include an adapter attached to a body extending upwardly from a well bore. The adapter supports a stripper rubber and a slip assembly on in...	09/17/1985

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Class 166/88.2 - Slip type well anchor