Class 166/117.6 - Secured in operative position by movable means engaging well conduit (e.g., anchor)

Subclass of Class 166 - Wells
Definition: Devices in which the diverting means is secured in operative
No. of patents: 316
Last issue date: 12/06/2011

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Number	Title	Issue Date
8069915	Non-metallic whipstock A whipstock that is totally to substantially non-metallic is made preferably from a composite material. The body can include one or more stiffeners that are also preferably non-metallic. The mounting lug for the window mill can also be non-metallic. A metallic base ...	12/06/2011
7997336	Method and apparatus for retrieving an assembly from a wellbore A method and apparatus for retrieving an assembly having a whipstock and an anchor from a wellbore. A method of retrieving an assembly having a whipstock coupled to an anchor from a wellbore may comprise the steps of releasing the whipstock from the anchor in the we...	08/16/2011
7980299	Horizontal well treating method Method of treating, especially, horizontally deviated wellbores where various treating solutions such as, acids, slurries, proppants, fracturing fluids, flushing fluids, or sealants are transferred into an annulus formed by a casing in the well and a working string....	07/19/2011
7789134	Downhole/openhole anchor A whipstock/billet anchor can be set in open hole such that one or more slips initially shift laterally near the lower end or below the whipstock/billet while the upper end reacts and gets pushed against the wellbore. Then with the top of the whipstock/billet agains...	09/07/2010
7575050	Method and apparatus for a downhole excavation in a wellbore The method and apparatus can create excavation cavities suitable for drilling multilateral wellbores through the excavation using a kick-off. One embodiment of the method comprises isolating a wellbore at a determined location, excavating a downhole cavity in a well...	08/18/2009
7513302	Apparatus for orienting a mule shoe to enter a previously-installed tubular in a lateral and method of use A method of entering a previously-installed tubular in a lateral borehole from a primary borehole connected to the lateral borehole includes passing a downhole tool from the primary borehole into the lateral borehole, actuating an orientation mule shoe coupled to th...	04/07/2009
7422057	Whipstock with curved ramp The whipstock face below the mounting lug is initially curved with a fairly long radius to protect the whipstock body initially. After moving down the minimally sloping curved face a transition to a greater angle is presented to increase the lateral forces on the wi...	09/09/2008
7370702	Single mill casing window cutting tool and method An apparatus for cutting a window in a casing pipe in a well, having only a single mill with full gage primary cutting inserts of a very hard, highly wear resistant, material. The primary inserts can be protected from damage by forming each blade on the mill with an...	05/13/2008
7360595	Method and system for underground treatment of materials A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a subsurface treatment zone and at least one of the injection pattern and ...	04/22/2008
7353867	Whipstock assembly and method of manufacture The present invention discloses a whipstock assembly (100) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body (122) and a deflection member 120) above the body. The deflection member includes a ...	04/08/2008
7350596	Methods and apparatus for expanding the diameter of a borehole A borehole reamer which may be deployed to a desired depth in an existing uncased borehole or below existing casing and used to substantially expand the diameter of the borehole. The diameter may be expanded by an amount that ranges from a fraction to a multiple of ...	04/01/2008
7337846	Surface controlled subsurface lateral branch safety valve A surface controlled subsurface lateral branch safety valve provides flow control for each branch wellbore in a multilateral well. In a described embodiment, a completion system for a well having an intersection between parent and branch wellbores includes an appara...	03/04/2008
7331387	Downhole window finder and method of using the same The present invention relates to a downhole method and apparatus for locating a window in a wellbore casing and determining the depth and orientation of said window. Apparatus of the present invention comprises a body (4) and a window engaging member (6	02/19/2008
RE40067	Downhole equipment tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes Single horizontal wells drilled through heterogeneous reservoirs are capable of greater oil productivity than vertical wells, often with lower produced GOR and WOR. Multiple drainholes tied-in to a vertical cased well are even more beneficial. Completion of such dra...	02/19/2008
7322252	Apparatus for taking measurements in access manholes An apparatus for measuring the location and annular orientation of pipe inverts and other features in manholes. An elongate, telescoping rod is supported centrally in the manhole opening by a pivot assembly that permits the rod to both rotate in the horizontal plane...	01/29/2008
7320373	One-step directional coring or drilling system An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetra...	01/22/2008
7299864	Adjustable window liner A system for lining a junction between a main bore and an auxiliary bore includes a first tubing adapted to line at least a portion of the main bore. The first tubing has a lateral opening therein. A second tubing has a junction shield extending outward therefrom. T...	11/27/2007
7299878	High pressure multiple branch wellbore junction A high pressure multiple branch wellbore junction. A wellbore junction system includes a wellbore junction with at least three bores extending therethrough. Exits of the three bores are axially spaced apart. At least two deflectors are formed on the wellbore junctio...	11/27/2007
7240738	Self-orienting selectable locating collet and method for location within a wellbore A self orienting selectable locating collet including a collet having at least one deflectable finger; an orientation key positioned at the deflectable finger and being deflectable with the finger; and a collet profile disposed at an outside dimension of the collet....	07/10/2007
7234526	Method of forming a sealed wellbore intersection An expanding wellbore junction system, apparatus and methods are provided for forming a sealed wellbore intersection in a subterranean well. In one described method, an expandable wellbore junction is expanded within an under-reamed cavity in a wellbore. Intersectin...	06/26/2007
7231980	Self orienting lateral junction system A self orienting liner hanger system including a bent sub, an indexing sub in operable communication with the bent sub, a hanger assembly in operable communication with the indexing sub, and a profile connected with the hanger assembly. Yet further disclosed ...	06/19/2007
7207390	Method and system for lining multilateral wells In accordance with one embodiment of the present invention, a method for lining a lateral wellbore includes drilling a main wellbore extending from a surface to a subterranean zone, casing the main wellbore with a main casing having a plurality of lateral wellbore w...	04/24/2007
7207395	Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement A method and system for testing a partially formed well includes forming a first well bore intersecting a subterranean formation. The first well bore includes a portion of a planned well having a first configuration. A production characteristic of the subterranean f...	04/24/2007
7182142	Downhole apparatus Apparatus (10) for facilitating coupling and cementing of downhole tubulars (12, 28) comprises a tubing section (12, 10) for use in lining a bore. The tubing section has upper and lower ends and defines a tubing wall having cement outlets (20...	02/27/2007
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 expanded position for grippingly engaging a larger wellbore diameter...	02/20/2007
7172027	Expanding tubing A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion m...	02/06/2007
7163063	Method and system for extraction of resources from a subterranean well bore A method for stimulating production of resources from a coal seam includes forming a drainage well bore in the coal bed that has a first end coupled to a ground surface and a second end in the coal seam. The method further includes inserting a liner into the well bo...	01/16/2007
7159661	Multilateral completion system utilizing an alternate passage A multilateral completion system utilizing an alternate passage. In a described embodiment, a wellbore junction includes a first passage extending from a first opposite end to a second opposite end of the wellbore junction. A window is formed through a sidewall of t...	01/09/2007
7124827	Expandable whipstock anchor assembly A whipstock assembly includes a tubular anchor 36 which is expanded into engagement with the casing string 8, and a tubular expander 24 which is forcibly moved into the tubular anchor to expand the tubular anchor downhole into secure engagement ...	10/24/2006
7121350	Torque anchor An anchor to inhibit rotation of a device relative to an oil well casing, comprising a tubular mandrel adapted for direct or indirect connection to the device; a rotatable cylindrical housing with a plurality of apertures and able to receive at least a portion of th...	10/17/2006
7121352	Isolation of subterranean zones One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and perforated tubulars. ...	10/17/2006
7117958	One-step directional coring or drilling system An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetra...	10/10/2006
7108071	Automatic tubing filler Methods and apparatus for filling a tubing string as it is lowered into a subterranean hydrocarbon well. In one embodiment, an apparatus to fill a tubular with fluid in a wellbore comprises a housing defining a central bore. An aperture formed in the housing provide...	09/19/2006
7100687	Multi-purpose well bores and method for accessing a subterranean zone from the surface A well system includes at least two well bores extending from a surface to a subterranean zone. Each of the two well bores is used to form a well bore pattern for the subterranean zone that intersects the other well bore and transports fluid from the subterranean zo...	09/05/2006
7100693	Process for pressure stimulating a well bore through a template One or more templates are provided for circulating fluids in a main well bore and for drilling and completing at least one offset well bore from the main well bore. Each template has a body, an inlet leg, a main outlet leg, and an offset outlet leg. A straddle assem...	09/05/2006
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 compressive force is applied to the hanger, it shrinks longitudinally ...	08/29/2006
7096962	Wellbore recovery operation The present invention relates to methods and equipment for recovering use of a well-bore in circumstances where the well bore has become blocked by downhole equipment. The invention provides a method comprising the steps of separating, at a release joint, a portion ...	08/29/2006
7077204	Whip retrieval method and apparatus The retrieval tool includes a cylindrical member having a body, an inner passage, a guide cylinder and an engaging member. The engaging member may slide within the cylindrical member in order to frictionally engage a whipstock against an inner surface of the guide c...	07/18/2006
7077206	Method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores A section mill is positioned below an exit guide in a drill string assembly used to mill a section of steel casing below the whipstock and which as the section mill moves down and mills along the section of casing, causes the whipstock to be lowered down adjacent th...	07/18/2006
7077211	Method of creating a casing in a borehole A method of creating a casing in a borehole located in a subterranean formation including: supporting a tubular liner and an expansion device in the borehole using a support member; injecting fluidic material into the borehole; pressurizing an interior region of the...	07/18/2006

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Class 166/117.6 - Secured in operative position by movable means engaging well conduit (e.g., anchor)