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. 04, 2017
Filed:
Dec. 19, 2013
Baker Hughes Incorporated, Houston, TX (US);
Christopher R. Hern, Porter, TX (US);
Matthew J. Kruger, Houston, TX (US);
Daniel C. Ewing, Katy, TX (US);
Travis J. Ansohn, Cypress, TX (US);
Jason P. Lacombe, Katy, TX (US);
Jarandon J. Adams, Spring, TX (US);
Michael Ramon, Houston, TX (US);
Steve M. Cortez, Katy, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A top down cementing tool operates with either mechanical manipulation or hydraulically. Rotation of the liner during cementing is enabled. A first bore is open for circulation during running in of the liner. In the hydraulic version, pressuring up on a dropped ball in the first bore opens cement packer setting ports and aligns crossover ports from the first bore to the annulus below the cementing packer and displaced fluid return ports to the annulus above the cementing packer. Pressuring up on a trailing wiper plug in the first bore opens the second bore so that pressuring on a seated ball in the second bore opens access to unsetting the cementing packer and launching the ball in the second bore for liner hanger setting and release of the running tool. The alternative embodiment gets the same result but with string manipulation for some of the realignments.