Invention Grant
- Patent Title: Lift-gas optimization with choke control
- Patent Title (中): 采用扼流圈控制提升气优化
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Application No.: US13253680Application Date: 2011-10-05
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Publication No.: US09031674B2Publication Date: 2015-05-12
- Inventor: Kashif Rashid , Suleyman Demirel , Benoit Couet
- Applicant: Kashif Rashid , Suleyman Demirel , Benoit Couet
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Main IPC: G05B11/01
- IPC: G05B11/01 ; G05B13/02 ; G05D16/00 ; E21B43/12 ; E21B43/36 ; E21B43/01 ; E21B34/04 ; G06F17/50 ; E21B43/00

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.
Public/Granted literature
- US20120095603A1 LIFT-GAS OPTIMIZATION WITH CHOKE CONTROL Public/Granted day:2012-04-19
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