IDiyas

For the Inventor, By the Inventor

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.

Patent No.:

US 9104823 B1

PDFFull Text
Date of Patent:
Aug. 11, 2015

Filed:

Feb. 06, 2014

Optimization with a control mechanism using a mixed-integer nonlinear formulation

Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Kashif Rashid, Wayland, MD (US);

Sulyman Demirel, Ann Arbor, MI (US);

Benoit Couet, Belmont, MA (US);

Assignee:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Attorney:

Alec J. McGinn

Primary Examiner:

Ronald Hartman, Jr

Int. Cl.
CPC ...
G05B 11/01 (2006.01); G05B 13/02 (2006.01); G05D 16/00 (2006.01); G06G 7/48 (2006.01); G06G 7/50 (2006.01); E21B 43/12 (2006.01); E21B 7/12 (2006.01); E21B 29/12 (2006.01); E21B 34/04 (2006.01); E21B 41/04 (2006.01); E21B 43/01 (2006.01); E21B 43/36 (2006.01); G06F 17/50 (2006.01); E21B 43/00 (2006.01); E21B 41/00 (2006.01); E21B 43/14 (2006.01); E21B 44/00 (2006.01); G05B 13/04 (2006.01); G05B 15/00 (2006.01); G05B 17/00 (2006.01);
U.S. Cl.
CPC ...
G06F 17/5009 (2013.01); E21B 43/00 (2013.01); E21B 43/12 (2013.01); E21B 43/122 (2013.01); E21B 41/0035 (2013.01); E21B 41/0092 (2013.01); E21B 43/14 (2013.01); E21B 44/00 (2013.01); E21B 2041/0028 (2013.01); G05B 13/04 (2013.01); G05B 15/00 (2013.01); G05B 17/00 (2013.01);
Abstract

A method of optimizing production of wells using choke control includes generating, for each well, an intermediate solution to optimize the production of each well. The generating includes using an offline model that includes a mixed-integer nonlinear program solver and includes using production curves based on a choke state and a given wellhead pressure. The method further includes calculating, using a network model and the intermediate solution of each well, a current online wellhead pressure for each well. The method further includes setting the intermediate solution as a final solution based on determining that a difference between the current online wellhead pressure of each well and a prior online wellhead pressure of each well is less than a tolerance amount. The method further includes adjusting, using the final solution of each well, at least one operating parameter of the wells.

Find Patent Forward Citations

Loading…