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:
Apr. 18, 2017

Filed:

Oct. 29, 2013
Applicant:

GE Oil & Gas Pressure Control Lp, Houston, TX (US);

Inventors:

Saurabh Kajaria, Houston, TX (US);

Khang V. Nguyen, Houston, TX (US);

Eugene A. Borak, Tomball, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/04 (2006.01); E21B 33/047 (2006.01);
U.S. Cl.
CPC ...
E21B 33/0415 (2013.01); E21B 33/047 (2013.01);
Abstract

A tubing hanger assembly includes a tubular outer tubing hanger member adapted to land in a bore of a wellhead. A tubular inner tubing hanger member is adapted to be secured to a string of production tubing and has an engaged position in a bore of the outer tubing hanger member. A retaining mechanism selectively allows the inner tubing hanger member to be lowered relative to the outer tubing hanger member, then selectively allowing the inner tubing hanger member to be returned back to the engaged position, to create tension in the string of production tubing. The retaining mechanism operates in response to rotational movement of the inner tubing hanger member while the outer tubing hanger member remains stationary with the wellhead.


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