METHODS FOR WELLBORE STRENGTHENING
    1.
    发明申请

    公开(公告)号:WO2020102149A1

    公开(公告)日:2020-05-22

    申请号:PCT/US2019/060851

    申请日:2019-11-12

    申请人: M-I L.L.C.

    摘要: A wellbore fluid may include an oleaginous fluid forming a continuous phase; a non-oleaginous fluid forming a discontinuous phase; at least one emulsifier stabilizing an emulsion of the non-oleaginous continuous phase within the oleaginous continuous phase; and at least one viscosifier dispersed into the oleaginous continuous phase in a concentration of at least 4 ppb; wherein upon subjecting the wellbore fluid to shear rate of at least 10,000 s -1 , the emulsion is disrupted and the non-oleaginous fluid contacts the at least one viscosifier, thereby solidifying the wellbore fluid.