US 12,359,516 B2
Two-stage multi-objective optimization scheme for wellbore cleanup with an emissions measure
Kashif Rashid, Wayland, MA (US); William Bailey, Somerville, MA (US); Glen Andrew Hay, Calgary (CA); Bertrand Theuveny, Paris (FR); and Morten Kristensen, Lysaker (NO)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jun. 12, 2023, as Appl. No. 18/333,342.
Prior Publication US 2024/0410239 A1, Dec. 12, 2024
Int. Cl. E21B 37/00 (2006.01); E21B 21/08 (2006.01)
CPC E21B 21/08 (2013.01) [E21B 2200/02 (2020.05); E21B 2200/20 (2020.05); E21B 2200/22 (2020.05)] 8 Claims
OG exemplary drawing
 
1. A method for optimizing a cleanup of a wellbore, comprising:
designing a mechanical arrangement configured to perform the cleanup of the wellbore, the mechanical arrangement having performance data;
placing the performance data pertaining to the arrangement for the cleanup of the wellbore into a simulator and determining a simulator output for the mechanical arrangement;
feeding the simulator output for the mechanical arrangement into both an emissions engine and a cleanup evaluator to achieve an emissions engine output and a cleanup evaluator output;
inputting the cleanup evaluator output and the emissions engine output into an aggregator to achieve an aggregated solution;
optimizing the aggregated solution through use of a radial basis function to achieve optimized results;
performing the method repetitively for all times related to a choke schedule as well as for different mechanical arrangements, wherein the choke schedule is determined for safe operations at the wellhead and in the wellbore; and
performing a cleanup operation in the wellbore with a one of the mechanical arrangements according to the determined safe choke schedule of the method.