公开(公告)号：US12091922B2

公开(公告)日：2024-09-17

申请号：US17631832

申请日：2020-07-30

申请人： Chevron U.S.A. Inc.

发明人： James Daniel Montoya ,  Jose Alberto Gamboa ,  Matthew John Bower

IPC分类号： E21B17/10

CPC分类号： E21B17/1021 ,  E21B17/1028 ,  E21B17/1057

摘要： An artificial lift system utilizing a downhole impeller-style pump and a motor at the surface. The system includes a centralizer for use with the rod string or tubing. The centralizer centralizes a rotating rod at intermediate points within the tubing string. The centralizer includes a plurality of flexure springs and bearings. A rod string tensioner induces a tension load on the rod string.

公开(公告)号：US20220275691A1

公开(公告)日：2022-09-01

申请号：US17631832

申请日：2020-07-30

申请人： Chevron U.S.A. Inc.

发明人： James Daniel Montoya ,  Jose Alberto Gamboa ,  Matthew John Bower

IPC分类号： E21B17/10

摘要： An artificial lift system utilizing a downhole impeller-style pump and a motor at the surface. The system includes a centralizer for use with the rod string or tubing. The centralizer centralizes a rotating rod at intermediate points within the tubing string. The centralizer includes a plurality of flexure springs and bearings. A rod string tensioner induces a tension load on the rod string.