The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2021
Filed:
Jul. 31, 2019
Halliburton Energy Services, Inc., Houston, TX (US);
Peter D W Inglis, Dundee, GB;
Katherine Ann Davies, Carnoustie, GB;
Michael Linley Fripp, Carrollton, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A downhole tool having an indexing apparatus for actuating the downhole tool from the surface by applying a pre-determined number of hydraulic pressure signals to the downhole tool. The downhole having an outer tubing that has an outer surface and an inner surface, the inner surface defining an inner region of the outer tubing. The downhole tool includes a sliding sleeve positioned within the inner region of the outer tubing, the sliding sleeve being slideable relative to the outer tubing. The sliding sleeve including a first magnet and a second magnet that are positioned in an opposing orientation relative to one another for providing a reference point detectable via a magnetometer at a surface of a wellbore. An indexing position of the downhole tool being determined by comparing a location of the reference point on the sliding sleeve to a location of a fixed point on the outer tubing.