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.

Date of Patent:
Mar. 04, 2025

Filed:

Oct. 19, 2023
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Torty Chinenye Kalu-Ulu, Ras Tanura, SA;

James Ohioma Arukhe, Dhahran, SA;

Ali Naji Alaithan, Umran, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 23/10 (2006.01); E21B 33/13 (2006.01); E21B 34/04 (2006.01); E21B 43/26 (2006.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
E21B 23/10 (2013.01); E21B 34/04 (2013.01); E21B 47/138 (2020.05);
Abstract

A system and method for deploying and retrieving a welltracker in a well include coupling a Christmas tree to the well, coupling a sensor deployment capsule to the Christmas tree, inserting and storing the welltracker into the cylindrical housing via a removable cap screw, and deploying the welltracker through the Christmas tree and into the well. The system and method further include dissolving a dissolvable weight on the welltracker at a well fluid pressure threshold, retrieving the welltracker to the cylindrical housing, bleeding off trapped pressure in the cylindrical housing from retrieval, via the drain valve, through the pressure transfer line, and controlling pressure in the sensor deployment capsule via the pressure gauge. The sensor deployment capsule includes a cylindrical housing including a removable cap screw, a drain valve coupled to the cylindrical housing and a pressure transfer line, and a pressure gauge coupled to the removable cap screw.


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