公开(公告)号：US11542756B2

公开(公告)日：2023-01-03

申请号：US17237327

申请日：2021-04-22

Applicant: SHELL OIL COMPANY

Inventor： Dhruv Arora ,  Matheus Norbertus Baaijens ,  Stephen Palmer Hirshblond ,  Derrick Melanson ,  Brian Kelly McCoy

IPC: E21B17/00 ,  E21B47/092 ,  E21B47/135

Abstract: A system for providing information through a metal wall employs a device adapted to be arranged on one side of the metal wall and a magnetic-permeability element, provided at, near or connected to the device. The magnetic-permeability element is based on a material having a relative magnetic permeability of at least 2000. The disclosure also provides use of said system. The use may involve the step of optimizing the magnetic-permeability element using equivalent inductive mass (EIm). The system can for example be used to magnetically sense the location of a cable present on the outside of a wellbore tubular using a magnetic orienting tool that is located within the wellbore tubular.

公开(公告)号：US11220870B2

公开(公告)日：2022-01-11

申请号：US16497546

申请日：2018-03-22

Applicant: SHELL OIL COMPANY

Inventor： Dhruv Arora ,  Matheus Norbertus Baaijens ,  Stephen Palmer Hirshblond ,  Derrick Melanson ,  Brian Kelly McCoy

IPC: E21B17/00 ,  E21B47/092 ,  E21B47/135

Abstract: A metal wellbore tubular wall of a wellbore tubular, having a cable system arranged on an outside thereof, is to be perforated downhole. The cable system contains a fiber-optic cable, and a magnetic-permeability element with a relative magnetic permeability μr,m of at least 2,000, such as an electrical steel, is configured along a length of the fiber-optic cable. The cable system is located by sensing the magnetic-permeability element through the metal wellbore tubular wall, using a magetic orienting tool which is being lowered into the wellbore tubular. subsequently, the metal wellbore tubular wall is perforated in a direction away from the cable system.