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:
Jul. 30, 2019

Filed:

Mar. 14, 2018
Applicant:

Noble Drilling Services Inc., Sugar Land, TX (US);

Inventors:

Hans H. J. Deul, Richmond, TX (US);

Patrick O'Neill, Houston, TX (US);

Matthew Sibrel, Missouri City, TX (US);

Robert van Kuilenburg, Sugar Land, TX (US);

Assignee:

NOBLE DRILLING SERVICES INC., Sugar Land, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/037 (2006.01); E21B 4/18 (2006.01); E21B 41/08 (2006.01); E21B 7/20 (2006.01); E21B 7/136 (2006.01);
U.S. Cl.
CPC ...
E21B 7/20 (2013.01); E21B 4/18 (2013.01); E21B 7/136 (2013.01); E21B 33/037 (2013.01); E21B 41/08 (2013.01);
Abstract

A method for excavating a well cellar includes lowering an excavating apparatus having a cellar liner therein to a bottom of a body of water. The well cellar is excavated while contemporaneously lowering the cellar liner into the well cellar until a top of the cellar liner is substantially level with the bottom of the body of water. A pilot well is excavated below a bottom of the cellar. A well head support pipe is inserted into the pilot well. The bottom of the well cellar and a top of the cellar liner are covered.


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