Special Oil & Gas Reservoirs ›› 2022, Vol. 29 ›› Issue (3): 92-97.DOI: 10.3969/j.issn.1006-6535.2022.03.013

• Reservoir Engineering • Previous Articles     Next Articles

Study on Integrated Closed-Loop Optimal Production Allocation of Offshore Gas Field Clusters

Yan Zhenghe   

  1. CNOOC Shenzhen Branch, Shenzhen, Guangdong 518000, China
  • Received:2021-05-08 Revised:2022-03-07 Online:2022-06-25 Published:2023-01-09

Abstract: In order to achieve scientific and efficient production allocation of single wells and optimize gas field development decisions in the joint development of offshore gas field clusters, real-time production and monitoring data of gas field clusters were fitted by ensemble Kalman filter data assimilation method to obtain a geological model of gas field clusters with prediction results consistent with production performance. Taking the cumulative gas production of the four gas field clusters as the objective function, numerical simulation technologies and particle swarm algorithms were employed to realize intelligent optimization of production allocation for the clusters. The study results showed that the cumulative gas production in 10 years was 19.1×108m3 after intelligent scheme optimization, which was 4.2% higher than that of the manual production allocation scheme, presenting a remarkable effect in productivity optimization. The study effectively improved the development efficiency, and provides technical support and case reference for the efficient development of other complex oil and gas fields and the construction of gas storage.

Key words: gas field group, joint production allocation, closed-loop optimization, ensemble Kalman filter, particle swarm optimization

CLC Number: