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:
Jan. 02, 2007

Filed:

Mar. 06, 2003
Applicants:

Gerald D. Lynde, Houston, TX (US);

John L. Baugh, Houston, TX (US);

Leopoldo S. Gomez, Houston, TX (US);

John P. Davis, Cypress, TX (US);

Inventors:

Gerald D. Lynde, Houston, TX (US);

John L. Baugh, Houston, TX (US);

Leopoldo S. Gomez, Houston, TX (US);

John P. Davis, Cypress, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/10 (2006.01); E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A one trip system for expanding a tubular that is solid or perforated or a screen comprises a downhole assembly that features a hydraulic anchor that can be set, released and repositioned to repeat the process. The anchor is small enough to go through the tubular or screen after initial expansion. The anchor's maximum extension is designed to avoid overstressing the already expanded tubular or screen. An expansion tool is hydraulically driven with the initial portion of the stroke delivering an enhanced force. The expansion tool initially supports the tubular or liner but subsequently releases during the first stroke, after the tubular or screen is fully supported.


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