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. 24, 2018
Filed:
Jan. 13, 2016
Chevron U.s.a. Inc., San Ramon, CA (US);
Henry Anthony Bergeron, Houston, TX (US);
CHEVRON U.S.A. INC., San Ramon, CA (US);
Abstract
A lockdown tool for locking down a high pressure wellhead with a conductor wellhead housing includes a housing that includes a conductor wellhead housing facing surface designed to come in contact with a conductor wellhead housing positioned at or near a seafloor. The housing further includes a lockdown mechanism facing surface designed to come in contact with a lockdown mechanism that is between the conductor wellhead housing and a high pressure wellhead seated in the conductor wellhead housing. The housing also includes a wellhead facing surface having a profile that matches a profile of the high pressure wellhead formed on an outer surface of the high pressure wellhead. The lockdown tool further includes a piston positioned in a cavity of the housing and a hydraulic pressure port extending through a wall of the housing for applying hydraulic pressure by an external hydraulic pressure source into the cavity of the housing.