公开(公告)号：US11773670B2

公开(公告)日：2023-10-03

申请号：US17309233

申请日：2018-11-12

Applicant: SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

Inventor： Mingzhong Gao ,  Heping Xie ,  Ling Chen ,  Jun Guo ,  Zhilong Zhang ,  Zetian Zhang ,  Ru Zhang ,  Yiqiang Lu ,  Cong Li ,  Zhiqiang He

IPC: E21B23/04 ,  E21B21/10 ,  E21B25/10 ,  E21B34/06

CPC classification number: E21B23/04115 ,  E21B21/10 ,  E21B25/10 ,  E21B34/063

Abstract: A control mechanism of a core drilling rig includes a central rod (14) and an outer barrel (23). The central rod (14) passes through, from the rear to the front, the inner cavities of a fluid channel activation module, an outer barrel unlocking module, a flow diverging module, and a coring barrel connecting module. The coring barrel connecting module comprises a core tube connecting pipe (62), a core ring bearing (63), a bearing inner ring (64), a ball A (6211) and a ball B (6411). The core tube connecting pipe (62) is connected at the front side thereof to the coring barrel (65). The bearing inner ring (64) is inside the core tube connecting pipe (62). The core ring bearing (63) is connected to an inner wall of the outer barrel (23).

公开(公告)号：US10415388B2

公开(公告)日：2019-09-17

申请号：US15825084

申请日：2017-11-28

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yufei Wang ,  Lingzhi Xie ,  Ru Zhang

IPC: E21D13/00 ,  B65G5/00 ,  E21B43/28 ,  E21B43/40 ,  C09K8/38

Abstract: A device for constructing an underground reservoir by dissolving limestone using carbon dioxide. The device includes a CO2 storage tank; an absorption tower; a decompression valve; a gas-liquid separator; a crystallizer; a vacuum pump; a buffer tank; a first booster pump; a second booster pump; and a third booster pump. The decompression valve is connected to a limestone layer, and is connected to the gas-liquid separator. The absorption tower is connected between the gas-liquid separator and the limestone layer.