公开(公告)号：US20230141812A1

公开(公告)日：2023-05-11

申请号：US17777594

申请日：2020-11-25

Applicant: China University of Petroleum-Beijing

Inventor： Chengyun MA ,  Yongcun FENG ,  Jingen DENG

IPC: G01N3/12 ,  E21B49/00 ,  G01N33/24

CPC classification number: G01N3/12 ,  E21B49/00 ,  G01N33/24

Abstract: A dynamic crack leaking stoppage evaluation experiment device includes a crack simulation experiment instrument having a dynamic crack simulation mechanism. The dynamic crack leaking stoppage evaluation experiment device can simulate a dynamic change process of a crack from a closed state to an open state. An experiment method can be applied to study a variation range of the width of the crack that have been subjected to self-adaptive leaking stoppage with various combinations of leaking stoppage materials and under different increments, and the method can also be applied to quantitatively study on effecting patterns of rheological parameters and hydraulic parameters of well drilling fluid on stability of a leaking stoppage layer in the dynamic crack, so that enabled is not only simulation of leaking stoppage process of a dynamic crack, but also real-time monitoring and evaluation on leaking stoppage effect and leaking stoppage location inside the dynamic crack.