Adjustment of infill in transition zone to improve oilfield productivity

The Third Oil Production Plant of Daqing Oilfield Limited Company, Northeast Petroleum University, Daqing, Heilongjiang, China

^* Corresponding author: xulong1357@petrochina.com.cn

Abstract

Affected by the high viscosity of crude oil, the large injection-production well spacing, the poor injection condition, and the low oil recovery rate, the overall development effect of transition zone is poor, besides, the low produced degree and the poor utilization of thin oil layer makes transition zone have some potential excavation. Under the condition that the current conventional measures to improve block development are not clear, it is necessary to further optimize the injection-production system. Based on the principle of “Well pattern rules, Well spacing optimization, Injection-production perfecting, Facilitation of adjustment”, layer combination is thus optimized. This paper analyzes the effect of encryption adjustment and tracking adjustment.