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:
Apr. 05, 2022
Filed:
Dec. 21, 2018
Halliburton Energy Services, Inc., Houston, TX (US);
Min Mark Yuan, Katy, TX (US);
Stephen Allen Yeldell, Golden, CO (US);
Lonnie Carl Helms, Humble, TX (US);
Frank Vinicio Acosta, Spring, TX (US);
Rajesh Parameshwaraiah, Houston, TX (US);
Kevin Wendell Ardoin, Spring, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A buoyancy assist tool has an outer case and a sleeve disposed in the outer case. The sleeve is movable from first to second positions in the outer case. A permeable membrane is attached to the movable sleeve at a lower end thereof. A rupture disk is mounted in the outer case. Fluid flow through the permeable membrane detaches the sleeve from the outer case and moves the sleeve from the first to the second position. In the second position, the sleeve creates an open bore for the passage of downhole tools therethrough.