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    Methods of Mitigating Lost Circulation While Drilling a Wellbore
    3.
    发明申请
    Methods of Mitigating Lost Circulation While Drilling a Wellbore 审中-公开

    公开(公告)号：US20190186231A1

    公开(公告)日：2019-06-20

    申请号：US16189586

    申请日：2018-11-13

    申请人： Bill R. Meeks ,  Timothy J. Nedwed ,  Douglas A. Mitchell ,  Rachna Jain ,  Kaustubh S. Kulkarni

    发明人： Bill R. Meeks ,  Timothy J. Nedwed ,  Douglas A. Mitchell ,  Rachna Jain ,  Kaustubh S. Kulkarni

    IPC分类号： E21B33/12 ,  E21B33/134

    CPC分类号： E21B33/1208 ,  C09K8/426 ,  C09K8/44 ,  E21B33/134

    摘要： Methods of mitigating lost circulation while drilling a wellbore. The methods include circulating a drilling mud to a downhole end of the wellbore via a drill string and, during the circulating, drilling the wellbore with a drill bit of the drill string. The methods also include detecting lost circulation within the wellbore while drilling the wellbore and include providing a monomer solution to the wellbore. The methods further include providing a catalyst to the wellbore responsive to detecting the lost circulation event and combining the monomer solution and the catalyst to polymerize a monomer from the monomer solution, within the wellbore, and forming a viscous plug within the wellbore. Subsequent to the combining, the methods include flowing at least a portion of the viscous plug within the wellbore and into a zone of lost circulation that extends within a subsurface region. The methods further include at least partially occluding fluid flow from the wellbore and into the zone of lost circulation with the viscous plug.

    Polymer Plugs For Well Control
    4.
    发明申请
    Polymer Plugs For Well Control 有权

    公开(公告)号：US20170081933A1

    公开(公告)日：2017-03-23

    申请号：US14861330

    申请日：2015-09-22

    申请人： Timothy J. Nedwed ,  Patrick Brant

    发明人： Timothy J. Nedwed ,  Patrick Brant

    IPC分类号： E21B33/035 ,  E21B33/13

    CPC分类号： E21B33/035 ,  E21B33/064 ,  E21B33/068 ,  E21B33/134

    摘要： Systems, apparatus, and methods for controlling a well blowout comprising: a flow control device such as a blowout preventer on a wellbore; a control fluid aperture fluidly connected with the wellbore for introducing a control fluid and/or a plug-forming agent such as a polymer, monomer, resinous, and/or crosslinkable material, through a control fluid aperture and into the primary throughbore while wellbore blowout fluid flows through the wellbore; and optionally, a weighted fluid aperture positioned in the wellbore conduit below the control fluid aperture for introducing a weighted fluid or another fluid or plug-forming agent into the wellbore.

    Polymer plugs for well control
    5.
    发明授权
    Polymer plugs for well control 有权

    公开(公告)号：US10006265B2

    公开(公告)日：2018-06-26

    申请号：US14861330

    申请日：2015-09-22

    申请人： Timothy J. Nedwed ,  Patrick Brant

    发明人： Timothy J. Nedwed ,  Patrick Brant

    IPC分类号： E21B33/035 ,  E21B33/064 ,  E21B33/076 ,  E21B33/068 ,  E21B33/134

    CPC分类号： E21B33/035 ,  E21B33/064 ,  E21B33/068 ,  E21B33/134

    摘要： Systems, apparatus, and methods for controlling a well blowout comprising: a flow control device such as a blowout preventer on a wellbore; a control fluid aperture fluidly connected with the wellbore for introducing a control fluid and/or a plug-forming agent such as a polymer, monomer, resinous, and/or crosslinkable material, through a control fluid aperture and into the primary throughbore while wellbore blowout fluid flows through the wellbore; and optionally, a weighted fluid aperture positioned in the wellbore conduit below the control fluid aperture for introducing a weighted fluid or another fluid or plug-forming agent into the wellbore.

    Wellbore dynamic top kill with inserted conduit
    9.
    发明授权
    Wellbore dynamic top kill with inserted conduit 有权

    公开(公告)号：US09631459B2

    公开(公告)日：2017-04-25

    申请号：US14861347

    申请日：2015-09-22

    申请人： Timothy J. Nedwed ,  David R. Converse ,  Michael W. Eaton

    发明人： Timothy J. Nedwed ,  David R. Converse ,  Michael W. Eaton

    IPC分类号： E21B33/06 ,  E21B21/08 ,  E21B33/064 ,  E21B43/38 ,  E21B33/035 ,  E21B41/00

    CPC分类号： E21B41/0007 ,  E21B33/035 ,  E21B33/064 ,  E21B33/068

    摘要： Systems, apparatus, and methods for controlling a well blowout comprising: a flow control device such as a blowout preventer on a wellbore, the primary throughbore of the flow control device for introducing control fluid into the primary throughbore portion of the wellbore throughbore to create a pressure drop within the primary throughbore sufficient to overcome the flowing blowout fluid pressure within the primary throughbore and optionally introducing control fluid into the primary throughbore using a conduit inserted directly into the wellbore throughbore to further enhance introduction of control fluid into the wellbore throughbore; and optionally a weighted fluid aperture may be positioned in the wellbore conduit, preferably below the control fluid aperture for introducing a weighted fluid into the wellbore throughbore while control fluid is also being concurrently introduced into the wellbore through the control fluid aperture.