胡12块严重非均质极复杂小断块油藏数值模拟研究

采用油藏数值模拟方法，对胡12块的开采历史进行了拟合，得出了剩余油分布状况，找出剩余油富集区域横向上主要集中在各层系或构造的高部位，西块的剩余油主要集中在Es3^中亚段7砂组和Es3^k 亚段6砂组1－3砂层，其次在Es3^下亚段1砂组1－4砂层沿胡7－7断层及石家集断层一带，且连片性较好，东块剩余油主要集中在Es3^中亚段4砂组，12－7井北面及其东北和西南方向约200－300m内，其他层系的剩余饱和度都比较低且十分分散，同时还设计了4个调整方案进行了10年的开发预测，通过对这4个方案开发指标的对比分析，推荐采用方案3。

Numerical Simulation of Highly Heterogeneous Reservoir in a Complex Small Fault Block of Block Hu 12

Production history match is conducted on Block Hu 12 by using reservoir numerical simulation. Residual oil distribution is obtained. It is found that oil abundance area is concentrated laterally on top of each stratum and structure, the residual oil on the west block is concentrated on Sand Group 7 and Sand 1~3 of Sand Group 6 in the middle position of Es 3, the other oil abundance areas are concentrated on Sand 1~4 of Sand Group 1 in the lower position of Es 3 along 7-7 fault and Shijiaji fault with good connection. The residual oil distribution is principally concentrated on Sand Group 4 in the middle position of Es 3, to the north of Well 12-7 and within 200~300m in the north-west and south-west . The residual oil saturation of the other strata is low and highly dispersive. At the same time 4 adjustment plans have been designed for 10 years production prediction, of which the indications are comparatively analyzed. Plan 3 is recommended to be introduced in oilfields.