公开(公告)号：US12084935B2

公开(公告)日：2024-09-10

申请号：US18063014

申请日：2022-12-07

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Mohammed Alsheikh ,  Atef Shoman ,  Ossama R. Sehsah ,  Amjad Alshaarawi ,  Richard Mark Pye

IPC: E21B29/00 ,  E21B31/16 ,  E21B43/119 ,  E21B44/00 ,  E21B47/09

CPC classification number: E21B29/005 ,  E21B31/16 ,  E21B43/119 ,  E21B44/00 ,  E21B47/09

Abstract: A mechanical autonomous pipe cutting system for cutting a pipe in a wellbore includes a locking unit that prevents the system from moving within the pipe when engaged to an inner surface of the pipe, a punching unit that moves a plurality of punching elements radially relative to an axis of the system, and a cutting unit that is designed to sever the pipe. The locking unit, the punching unit, and the cutting unit are attached to a body of the mechanical autonomous pipe cutting system. The body includes a motor that rotates the cutting unit. The mechanical autonomous pipe cutting system further includes a sensor module that detects interactions between the pipe and walls of the wellbore and a control unit in electronic communication with the sensor module, the locking unit, and the punching unit. The control unit actuates the locking unit and operates the punching unit subsequent to identifying a location where interaction between the pipe and the walls of the wellbore limits a downhole movement of the pipe based on an output of the sensor module.

公开(公告)号：US20240191586A1

公开(公告)日：2024-06-13

申请号：US18063014

申请日：2022-12-07

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Mohammed Alsheikh ,  Atef Shoman ,  Ossama R. Sehsah ,  Amjad Alshaarawi ,  Richard Mark Pye

IPC: E21B29/00

CPC classification number: E21B29/005

Abstract: A mechanical autonomous pipe cutting system for cutting a pipe in a wellbore includes a locking unit that prevents the system from moving within the pipe when engaged to an inner surface of the pipe, a punching unit that moves a plurality of punching elements radially relative to an axis of the system, and a cutting unit that is designed to sever the pipe. The locking unit, the punching unit, and the cutting unit are attached to a body of the mechanical autonomous pipe cutting system. The body includes a motor that rotates the cutting unit. The mechanical autonomous pipe cutting system further includes a sensor module that detects interactions between the pipe and walls of the wellbore and a control unit in electronic communication with the sensor module, the locking unit, and the punching unit. The control unit actuates the locking unit and operates the punching unit subsequent to identifying a location where interaction between the pipe and the walls of the wellbore limits a downhole movement of the pipe based on an output of the sensor module.