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1. (WO2018044291) METHOD AND CONTROL SYSTEM FOR ALLOCATING STEAM TO MULTIPLE WELLS IN STEAM ASSISTED GRAVITY DRAINAGE (SAGD) RECOURCE PRODUCTION

Pub. No.:    WO/2018/044291    International Application No.:    PCT/US2016/049645
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: E21B 43/24
Applicants: GENERAL ELECTRIC COMPANY
Inventors: LIU, Guoxiang
AZZARO, Steven, Hector
IYER, Naresh, Sundaram
KLENNER, Robert, Carl Lloyd
JOSHI, Mahendra
TSE, Gabriel
MURRELL, Glen
Title: METHOD AND CONTROL SYSTEM FOR ALLOCATING STEAM TO MULTIPLE WELLS IN STEAM ASSISTED GRAVITY DRAINAGE (SAGD) RECOURCE PRODUCTION
Abstract:
A system includes a steam distributor 124 configured to distribute steam received from a steam generator 122 to multiple injection wells 106 in a well pad 102 for steam assisted gravity drainage (SAGD) resource production. The system also includes one or more processors 128 configured to control the steam distributor to distribute the steam to the injection wells according to a resultant scheme including values representing multiple parameters for the SAGD resource production. The parameters include the allocated quantities of steam, pressures within multiple production wells associated with the injection wells, and time periods that the steam is directed into the injection wells. The one or more processors are configured to determine the resultant scheme by performing multiple iterations of a surrogate evaluation process until a stop criterion is met, and identifying the resultant scheme as the sample scheme of a final iteration prior to the stop criterion being met.