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. 27, 2024

Filed:

Apr. 07, 2022
Applicant:

Grant Prideco, Inc., Houston, TX (US);

Inventor:

Austin Johnson, Houston, TX (US);

Assignee:

GRANT PRIDECO, INC., Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/10 (2012.01); E21B 21/08 (2006.01); E21B 34/08 (2006.01); E21B 47/06 (2012.01); G08B 21/18 (2006.01);
U.S. Cl.
CPC ...
E21B 47/10 (2013.01); E21B 34/08 (2013.01); E21B 47/06 (2013.01); G08B 21/182 (2013.01); E21B 21/08 (2013.01);
Abstract

A method of monitoring a well state with intermittent well state sampling includes determining a measured volume differential by measuring flow out of a wellbore, measuring flow into the wellbore, and calculating a difference between the measured flow out and the measured flow in. The method includes determining an expected volume differential by calculating a fluid volume of the wellbore system, determining a wellbore pressure difference, determining a well system bulk modulus, and multiplying the fluid volume of the wellbore by the wellbore pressure difference and dividing a result by the well system bulk modulus. If the expected volume differential is not substantially equal to the measured volume differential, reporting to the user that the well state is experiencing a significant change requiring user intervention.


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