公开(公告)号：WO2023076851A1

公开(公告)日：2023-05-04

申请号：PCT/US2022/078574

申请日：2022-10-24

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： CHENG, Samuel ,  PATEL, Prashant ,  ZHANG, Xichang

IPC: E21B33/04 ,  E21B33/129 ,  E21B33/12

Abstract: A wellbore system includes a hanger lock energizing ring (202), a hanger lock ring (206), and a shoulder ring (204). The wellbore system further includes a seal energizing ring (228) coupled to the shoulder ring (204). The wellbore system also includes a seal element (244) being driven into an energized position by the seal energizing ring (228). The wellbore system further includes a seal lock energizing ring (222) being driven to move via one or more extensions (220). The wellbore system includes a seal lock ring (240) being supported, at least in part, by the seal energizing ring (228). Both the hanger lock ring (206) and the seal lock ring (240) are set, substantially simultaneously, responsive to movement of the one or more extensions (220).

公开(公告)号：WO2023086754A1

公开(公告)日：2023-05-19

申请号：PCT/US2022/079286

申请日：2022-11-04

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： CHENG, Samuel ,  PATEL, Prashant ,  ZHANG, Xichang

IPC: E21B33/04 ,  E21B33/043 ,  E21B34/10

Abstract: A wellhead annulus packoff and an associated method is disclosed. A retainer lock mechanism of the wellhead annulus packoff is to sit at least partly within a first indentation of a hanger. The retainer lock mechanism includes a bottom surface and a side surface so that the bottom surface is to be associated with a lower energizing ring and the side surface is to be engaged in an energized state with a first side of the seal element. A second side of the seal element is to abut with a surface of a housing and a slot of the seal element is to abut with the lower energizing ring in the energized state of the wellhead annulus packoff.

公开(公告)号：WO2023086748A1

公开(公告)日：2023-05-19

申请号：PCT/US2022/079214

申请日：2022-11-03

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： CHENG, Samuel ,  ZHANG, Xichang ,  PATEL, Prashant

IPC: E21B33/04 ,  E21B33/043 ,  E21B34/10

Abstract: A wellhead annulus packoff and an associated method of energizing and de-energizing are disclosed. The wellhead annulus packoff includes at least one seal element, a hanger lockdown ring, a hanger lockdown energizing ring, a seal lockdown ring, a seal lockdown energizing ring, and one or more mechanical conditional operators, where the at least one seal element adapted to be energized with a first energizing force applied through a seal lockdown energizing ring and with the one or more mechanical conditional operators being engaged, where the seal lockdown ring is adapted to be energized with the first energizing force and with the one or more mechanical conditional operators being disengaged, and where the hanger lockdown ring is adapted to be energized with a second energizing force applied through a hanger lockdown energizing ring.