US 12,359,543 B2
Gas and water breakthrough detection
Ammal F. Al-Anazi, Dammam (SA); and Wenrong Mei, Ras Tanura (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on May 16, 2023, as Appl. No. 18/197,938.
Prior Publication US 2024/0384632 A1, Nov. 21, 2024
Int. Cl. E21B 43/12 (2006.01); E21B 43/16 (2006.01); E21B 49/08 (2006.01)
CPC E21B 43/122 (2013.01) [E21B 43/164 (2013.01); E21B 49/0875 (2020.05)] 7 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
receiving flow rate measurement data of produced gas and produced oil of a producing well in a subsurface reservoir;
receiving composition measurement data of the produced gas and the produced oil, wherein the composition measurement data comprises mole fraction measurement data of carbon numbers C1 and C2 in the produced gas and the produced oil;
detecting, based on the received flow rate measurement data and the received composition measurement data, an occurrence of a producing well breakthrough of gas injected into the subsurface reservoir from one or more injection wells;
enhancing oil recovery from the producing well based on the detected occurrence of the producing well breakthrough of the injected gas; and
in response to detecting the occurrence of the producing well breakthrough of the injected gas, performing a remedial action comprising one of: cement-squeezing perforations, re-perforating wells, or performing numerical simulations to identify trapped oil zones for drilling new wells.