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, 1994
Filed:
Jul. 15, 1992
Applicant:
Inventors:
Assignee:
ABB Vetco Gray Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166368 ; 166382 ;
Abstract
An internal tieback connector for a subsea wellhead housing has a body which lands on the wellhead housing. A funnel extends over the wellhead housing. An internal connector element carried by the body will engage a profile in the wellhead housing. A connector actuator when moved axially downward will actuate the connector element. A tube extends downward from the connector actuator and engages the bore of a casing hanger. A locking device employs slips to allow downward movement of the actuator but prevent upward movement. The locking device can be released. A running tool is hydraulically actuated for moving the actuator downward and releasing the actuator to disconnect the tieback connector.