公开(公告)号：US11506033B2

公开(公告)日：2022-11-22

申请号：US17566556

申请日：2021-12-30

申请人： Southwest Petroleum University

发明人： Yang Tang ,  Haoyu Xiong ,  Guorong Wang ,  Jinzhong Wang ,  Jinhai Zhao ,  Guangjie Yuan ,  Zhidong Zhang ,  Xushen Li ,  Yufa He ,  Jie Wu ,  Xin Jing ,  Peng Zhao ,  Zeliang Li

IPC分类号： E21B43/12 ,  E21B43/04 ,  E21B43/38

摘要： Disclosed is an oil extraction and gas production method capable of in-situ sand control and removal by downhole hydraulic lift achieved by downhole oil extraction and gas production system and ground oil extraction and gas production system. The downhole systems mainly comprises a double-layer tube, a double-layer tube reducing joint, a double-layer tube packer, a hydrodynamic turbine motor, a sludge screw pump, a soil-sand separator and a negative pressure absorber; the ground system comprises a power fluid pressurizing module and a mix fluid treatment module. The present application lowers the difficulty of pumping and lifting downhole formation fluid; achieves downhole and in-situ sand control and sand discharge, alleviates the blockage and erosion of sand particles on equipments and reduces energy consumption; decreases the production cost and improves the operation efficiency, therefore is suitable for oil extraction and gas production in high sand content wells.

公开(公告)号：US11466805B2

公开(公告)日：2022-10-11

申请号：US17686341

申请日：2022-03-03

申请人： Southwest Petroleum University

发明人： Yang Tang ,  Yuan Wang ,  Haoyu Xiong ,  Jinzhong Wang ,  Mingbo Wang ,  Wen Yang ,  Guangjie Yuan ,  Xiang Gao ,  Jie Wu ,  Shouhong Ji ,  Guorong Wang ,  Hao Hou ,  Meng Li ,  Li Gu

IPC分类号： F16L55/10 ,  F16L55/128 ,  F16L55/44 ,  F16L55/18

摘要： The invention discloses an intelligent plugging robot and method thereof for rerouting, maintaining and repairing long-distance pipelines. The intelligent plugging robot includes a through-flow governor, a flow-blocking mechanism and a telescopic mechanism, wherein the through-flow governor and the flow-blocking mechanism are symmetrically distributed on both sides of the device. The invention can realize remote, fast, safe and accurate plugging during maintaining and repairing the long-distance pipeline, wherein the telescopic mechanism cooperates with the flow-blocking mechanism to move autonomously in the pipe to achieve precise positioning, the through-flow governor can not only adjust the plugging robot but also ensure the cleaning of the pipe wall, make it stable contact with the signal transceiver, and realize the stable communication between the robot in the pipe and the remote monitoring machine.