公开(公告)号：US20240093554A1

公开(公告)日：2024-03-21

申请号：US18463876

申请日：2023-09-08

Applicant: Chengdu University of Technology

Inventor： Qingyou LIU ,  Jianguo ZHAO ,  Guorong WANG ,  Haiyan ZHU ,  Xuecheng DONG ,  Xingming WANG ,  Xu LUO ,  Yingju PEI ,  Xianwei DAI

IPC: E21B7/06 ,  E21B17/042 ,  E21B31/00 ,  E21B34/06 ,  E21B47/06 ,  E21B47/13

CPC classification number: E21B7/067 ,  E21B17/042 ,  E21B31/00 ,  E21B34/066 ,  E21B47/06 ,  E21B47/13

Abstract: Provided is a two-stage reverse-torque bent screw orientation tool. An existing bent screw orientation technology has the technical problems of large friction resistance, difficult control of a borehole track, a low drilling speed and the like, and restricts economic, safe and long-acting development of oil and gas. In order to solve the above problems, the two-stage reverse-torque bent screw orientation tool is invented and composed of a first-stage clutch mechanism and a second-stage clutch mechanism, and the first-stage clutch mechanism and the second-stage clutch mechanism are both composed of a battery, a battery compartment, a pressure sensor, an electromagnetic valve, a body, a plug, a piston, an outer tooth cylinder, an inner tooth cylinder, a transmission cylinder, a connecting cylinder, a bearing, a limiting cylinder, a lower joint, a thrust bearing, a battery compartment, a circuit board, a cover plate and the like.

公开(公告)号：US20240310861A1

公开(公告)日：2024-09-19

申请号：US18418172

申请日：2024-01-19

Applicant: Chengdu University of Technology

Inventor： Jianguo ZHAO ,  Penghui LIANG ,  Qingyou LIU ,  Guorong WANG ,  Haotian ZHENG ,  Hanxiu PENG ,  Min WAN ,  Gang HU ,  Xu LUO ,  Yingju PEI ,  Xingming WANG ,  Xianwei DAI ,  Xuanhe TANG ,  Lei TAO

IPC: G05D7/06 ,  G05B13/04

CPC classification number: G05D7/0623 ,  G05B13/041 ,  G05D7/0635

Abstract: A method, an apparatus and a system for automatically adjusting an opening degree of a fluid control valve, relating to the technical field of oil and gas exploration and development. The method includes: establishing a fluid control valve having an orifice structure in oil and gas production; using a numerical simulation method to obtain the influence law of minimum opening degree adjustment step on oil and gas production; obtaining relevant production test data of the oil and gas well, and calculating the total oil and gas production and the oil and gas production of each production layer based on the production test data of the oil and gas well; dividing the production layer segments into high, middle and low-production layers according to the production ratio of each production layer segment; respectively calculating the average productions of the high, middle and low-production layers.