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:
Aug. 23, 2016

Filed:

May. 07, 2013
Applicant:

Dril-quip, Inc., Houston, TX (US);

Inventors:

John M. Yokley, Kingwood, TX (US);

Curtis W. Payne, Richmond, TX (US);

Assignee:

Dril-Quip, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/043 (2006.01); E21B 43/10 (2006.01); E21B 23/01 (2006.01); E21B 19/00 (2006.01); E21B 33/12 (2006.01); E21B 33/04 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1208 (2013.01); E21B 33/04 (2013.01); E21B 33/1212 (2013.01); E21B 43/10 (2013.01);
Abstract

A hybrid-tieback seal assembly and methods for tying a well back to the surface or subsea well head are disclosed. A method to tie a well back to the surface or subsea well head comprises running a hybrid-tieback seal assembly into a wellbore, the hybrid-tieback seal assembly comprising one or more anchoring bodies, one or more packer seal assemblies; and a device for creating a pressure differential in a tieback string, wherein the tieback string is coupled to the hybrid-tieback seal assembly. The method further comprises landing a casing hanger in a well head, increasing pressure in the tieback string, setting the anchoring bodies and one or more packer seal assemblies within at least one of a previously installed liner hanger system and a host casing above a previously installed hanger system, and testing the hybrid-tieback seal assembly down an annulus between the host casing and the tieback string.


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