US 11,808,117 B2
Method for obtaining unique constraints to adjust flow control in a wellbore
Terry Wayne Stone, KingsWorthy (GB)
Assigned to Schlumberger Technology Corporation, Sugar Land, AS (US)
Appl. No. 15/733,434
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Feb. 4, 2019, PCT No. PCT/US2019/016480
§ 371(c)(1), (2) Date Jul. 29, 2020,
PCT Pub. No. WO2019/152912, PCT Pub. Date Aug. 8, 2019.
Claims priority of provisional application 62/625,614, filed on Feb. 2, 2018.
Prior Publication US 2021/0262325 A1, Aug. 26, 2021
Int. Cl. E21B 43/12 (2006.01); E21B 34/02 (2006.01); G05D 7/06 (2006.01); G06F 30/20 (2020.01)
CPC E21B 43/12 (2013.01) [E21B 34/025 (2020.05); G05D 7/06 (2013.01); G06F 30/20 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method for determining flow control device settings, comprising:
obtaining data representing flow rates for a plurality of flow control devices;
determining total molar rates for a plurality of flows through pipe segments associated with the flow control devices based on the obtained data;
determining initial flow control device constraints based on the total molar rates for the plurality of flow control devices, wherein the initial flow control device constraints comprise surface rate limits;
determining that one or more wellhead constraints would be violated based on the initial flow control device constraints;
determining adjusted flow control device constraints that result in the satisfaction of one or more wellhead constraints or constraints of others of the plurality of flow control devices;
determining an adjusted flow rate based on the adjusted flow control device constraints that satisfy the wellhead constraints and the constraints of others of the plurality of flow control devices; and
executing a computer-based instruction to set one or more wellhead settings and flow control device valve settings based on the adjusted flow control device constraints.