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    LATERAL COMPLETION SYSTEM WITH RETRIEVABLE INNER LINER
    2.
    发明申请
    LATERAL COMPLETION SYSTEM WITH RETRIEVABLE INNER LINER 审中-公开

    公开(公告)号：US20180320487A1

    公开(公告)日：2018-11-08

    申请号：US15809401

    申请日：2017-11-10

    Applicant: Packers Plus Energy Services Inc.

    Inventor： Daniel Jon Themig

    IPC: E21B43/08 ,  E21B43/10 ,  E21B29/00

    CPC classification number: E21B43/08 ,  E21B29/00 ,  E21B29/06 ,  E21B33/129 ,  E21B43/10 ,  E21B43/14 ,  E21B43/26

    Abstract: A dual liner assembly for a multilateral fracking system, comprises a junction support liner adapted to be installed in a lateral wellbore at a junction with a main wellbore; an inner liner with an upper portion and a lower portion, the inner liner being positioned inside the junction support liner and extending beyond the junction support liner within the main wellbore and within the lateral wellbore when the assembly is installed; and a cut and release connector adapted to join the inner liner and the junction support liner and to enable detaching of the upper portion of the inner liner from the assembly. A method of multilateral fracking is also described.

    Whipstock Valve with Nozzle Bypass Feature
    3.
    发明申请
    Whipstock Valve with Nozzle Bypass Feature 审中-公开

    公开(公告)号：US20180195346A1

    公开(公告)日：2018-07-12

    申请号：US15916047

    申请日：2018-03-08

    Applicant: Baker Hughes, a GE company, LLC

    Inventor： Dylan A. Bulloch ,  Gregory L. Hern ,  Larry T. Palmer ,  Jason L. Cullum

    IPC: E21B7/06 ,  E21B34/10 ,  E21B29/06 ,  E21B34/00

    CPC classification number: E21B7/061 ,  E21B29/06 ,  E21B34/10 ,  E21B2034/007

    Abstract: A valve for subterranean whipstock service has a side port and a through passage with a biased movable sleeve to shift between circulation mode into the annulus and flow through mode for setting an anchor and then feeding window mill nozzles. The valve is run in when in circulation mode to allow operation of a measurement while drilling device. When the whipstock is properly oriented the pressure is increased to break a shear pin to allow a spring to bias the sleeve to the flow through position. The shifting of the sleeve opens a bypass passage around the restriction orifice that was first used to build pressure to break the shear pins that let the sleeve move under spring bias. As a result the spring can hold the sleeve in position despite high flow rates needed to remove cuttings from the mill as the window is opened.

    Mechanical Casing Exit Window Locator and Whipstock Alignment System
    4.
    发明申请
    Mechanical Casing Exit Window Locator and Whipstock Alignment System 审中-公开

    公开(公告)号：US20180135386A1

    公开(公告)日：2018-05-17

    申请号：US15354090

    申请日：2016-11-17

    Applicant: Baker Hughes Incorporated

    Inventor： Adam L. Larsen

    IPC: E21B41/00 ,  E21B23/01 ,  E21B7/06

    CPC classification number: E21B29/06 ,  E21B7/061

    Abstract: A whipstock assembly for emplacing and orienting a whipstock within a wellbore. The whipstock assembly includes a whipstock, an anchor sub for securing the whipstock within the wellbore and a locating tool which is releasably secured to the whipstock. The locating tool includes a tool body with an inclined contact face and a hook which extends radially outwardly from the tool body. The hook is shaped and sized to engage a lower end of the casing exit window to align and orient the whipstock with the casing exit window.

    Whipstock valve with nozzle bypass feature
    5.
    发明授权
    Whipstock valve with nozzle bypass feature 有权

    公开(公告)号：US09926745B2

    公开(公告)日：2018-03-27

    申请号：US14824921

    申请日：2015-08-12

    Applicant: BAKER HUGHES INCORPORATED

    Inventor： Dylan A. Bulloch ,  Gregory L. Hern ,  Larry T. Palmer ,  Jason L. Cullum

    IPC: E21B7/08 ,  E21B29/06 ,  E21B7/06 ,  E21B34/10 ,  E21B34/00

    CPC classification number: E21B7/061 ,  E21B29/06 ,  E21B34/10 ,  E21B2034/007

    Abstract: A valve for subterranean whipstock service has a side port and a through passage with a biased movable sleeve to shift between circulation mode into the annulus and flow through mode for setting an anchor and then feeding window mill nozzles. The valve is run in when in circulation mode to allow operation of a measurement while drilling device. When the whipstock is properly oriented the pressure is increased to break a shear pin to allow a spring to bias the sleeve to the flow through position. The shifting of the sleeve opens a bypass passage around the restriction orifice that was first used to build pressure to break the shear pins that let the sleeve move under spring bias. As a result the spring can hold the sleeve in position despite high flow rates needed to remove cuttings from the mill as the window is opened.

    Method of providing mechanical stability around an entrance of a new well path to be formed from an existing well
    9.
    发明授权
    Method of providing mechanical stability around an entrance of a new well path to be formed from an existing well 有权

    公开(公告)号：US09670730B2

    公开(公告)日：2017-06-06

    申请号：US14375093

    申请日：2013-02-13

    Applicant: Hydra Systems AS

    Inventor： Arne Gunnar Larsen ,  Patrick Andersen ,  Roy Inge Jensen ,  Arnt Olav Dahl ,  Morten Myhre

    IPC: E21B7/08 ,  E21B7/06 ,  E21B33/14 ,  E21B29/06 ,  E21B37/00 ,  E21B43/11 ,  E21B29/02 ,  E21B33/12 ,  E21B37/08

    CPC classification number: E21B7/061 ,  E21B29/02 ,  E21B29/06 ,  E21B33/1204 ,  E21B33/14 ,  E21B37/00 ,  E21B37/08 ,  E21B43/11

    Abstract: A method is for establishing a new well path from an existing well, wherein the existing well, at least in a portion where the new well path is to be established, is delineated radially by a casing. The method comprises disposing and anchoring a plug base in the well; providing a plug above the plug base in the well and along a longitudinal section thereof, wherein the plug, at least in a portion thereof, covers substantially the entire cross-section of the well; removing a portion of the plug in such a manner that at least a cross-sectional section of the plug remains on the outside of the casing; disposing and anchoring a direction-guiding element in the well, and at least partially within the longitudinal section; and with the direction-guiding element, guiding a drilling tool against the inside of the casing in the existing well path in order to form a hole through the casing, and through the remaining cross-sectional section of the plug within the longitudinal section, which opens up to formation of a new well path. The method also comprises conducting a perforation tool down into the casing and to the longitudinal section where the plug is to be set; forming holes in the casing and along the longitudinal section by means of the perforation tool; and pumping a fluidized plugging material down through the string and out into the casing, thus also into the annulus via the holes in the casing.

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