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. 03, 2023

Filed:

Dec. 06, 2021
Applicant:

Subsea Drive, Llc, Sugar Land, TX (US);

Inventors:

Steven Michael Rosenberg, Cypress, TX (US);

Kenneth James Kotow, Sugar Land, TX (US);

James P. Wakefield, The Woodlands, TX (US);

Nitin Maheshwar Kulkarni, Pune, IN;

Assignee:

SUBSEA DRIVE, LLC, Sugar Land, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/12 (2006.01); E21B 43/10 (2006.01); E21B 47/06 (2012.01); E21B 47/007 (2012.01);
U.S. Cl.
CPC ...
E21B 43/101 (2013.01); E21B 7/12 (2013.01); E21B 47/007 (2020.05); E21B 47/06 (2013.01);
Abstract

Systems and methods for casing drilling riserless sections of a subsea bore may include casing drilling a section of a bore for a casing of the subsea bore to a predetermined depth. The method also may include, while casing drilling the section of the bore, obtaining information indicative of pore pressure and fracture pressure of a geological formation through which the section is casing drilled, and determining a pressure range based at least in part on the pore pressure, the fracture pressure, and a modification to mechanical properties of the geological formation due to the casing drilling of the section. The method further may include selecting, based at least in part on the pressure range and the predetermined depth, a pressure of the bore for casing drilling the section.


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