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:
Mar. 01, 2022

Filed:

Oct. 19, 2018
Applicants:

Robin Gupta, Spring, TX (US);

Neal L. Adair, Spring, TX (US);

Sriram Doraiswamy, Spring, TX (US);

Ted A. Long, Spring, TX (US);

Inventors:

Robin Gupta, Spring, TX (US);

Neal L. Adair, Spring, TX (US);

Sriram Doraiswamy, Spring, TX (US);

Ted A. Long, Spring, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/047 (2012.01); E21B 43/24 (2006.01); E21B 47/003 (2012.01); E21B 47/07 (2012.01); E21B 47/107 (2012.01); E21B 43/12 (2006.01); E21B 43/14 (2006.01); E21B 47/06 (2012.01); E21B 49/08 (2006.01); G01F 1/66 (2006.01); G01F 23/296 (2006.01); G01V 1/40 (2006.01); G01V 9/02 (2006.01);
U.S. Cl.
CPC ...
E21B 47/047 (2020.05); E21B 43/122 (2013.01); E21B 43/14 (2013.01); E21B 43/2406 (2013.01); E21B 47/003 (2020.05); E21B 47/06 (2013.01); E21B 47/07 (2020.05); E21B 47/107 (2020.05); E21B 49/08 (2013.01); G01F 1/662 (2013.01); G01F 23/296 (2013.01); G01V 1/40 (2013.01); G01V 9/02 (2013.01); E21B 43/121 (2013.01);
Abstract

Methods and systems for determining a liquid level in a formation between a horizontal segment of an injection wellbore and a horizontal segment of a production wellbore are disclosed. Under shut-in conditions, local temperatures and pressures are determined for each of a plurality of inflow zones along the production wellbore segment. Local profile values are determined based on local shut-in subcool values and local shut-in liquid levels. After flow has resumed, a local liquid level is determined based on the local operating subcool value and the local profile value for that inflow zone. The local profile values may be updated during subsequent shut-ins.


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