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公开(公告)号：US20210301643A1
公开(公告)日：2021-09-30
申请号：US17202584
申请日：2021-03-16
Inventor： Guodong JI , Haige WANG , Meng CUI , Zhao MENG , Qiang WU , Li LIU , Jiawei ZHANG , Changchang CHEN , Liu CUI , Jing YU
IPC: E21B45/00 , E21B12/02 , E21B10/567 , E21B49/00
Abstract: A method for evaluating a downhole working condition of a PDC bit includes: performing an indoor test, including performing a drilling test in different full-sized cores by using the PDC bit with different degrees of abrasion and balling under condition of given WOB and rotational speed, to acquire change characteristics of a WOB, a rotational speed, a torque, a ROP and a bit vibration of the PDC bit in different time domains; improving and perfecting an existing prediction model and evaluation method for the downhole working condition through data obtained by the test to obtain the method; reading parameters of the WOB, the rotational speed, the torque and the ROP in real time during drilling; determining the downhole working condition of the PDC bit by using the method in the improving and perfecting.
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公开(公告)号：US20250067134A1
公开(公告)日：2025-02-27
申请号：US18725557
申请日：2022-12-08
Inventor： Guodong JI , Changchang CHEN , Qiang WU , Hongchun HUANG , Li LIU , Jing YU , Meng CUI , Jiawei ZHANG , Wenxin BI , Cuiping ZHOU
IPC: E21B21/08
Abstract: The present disclosure discloses a horizontal well cuttings bed processing method and device. The method includes: based on drilling engineering information of a horizontal well, predicting a distribution pattern of a cuttings bed throughout a drilling process, determining a cuttings bed height risk level in each well section, and outputting a cuttings bed removal solution associated with the well section. According to the present disclosure, processing accuracy and processing efficiency of the cuttings bed in a horizontal well can be improved, and accumulation of the cuttings bed in the horizontal well can be effectively resolved.
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