摘要
对标分析表明,轮古油田轮古7试验区与毗邻的塔河油田A—G区石油地质条件相似,原油地质储量丰度基本一致。两个油田均采用不规则布井、一套井网衰竭式开发。轮古7试验区目前总体钻井密度低于塔河油田A—G区,但局部位置钻井较密集。通过主要开发指标的对比,轮古7试验区在累计产油、井均产油、采油指数、中高产井比例、原油采收率等方面均偏低,但综合含水率偏高,开发成效远低于塔河油田A—G区同期的开发水平。分析认为,目前轮古7试验区原油剩余资源量多、开发潜力巨大。当前最为迫切的工作是做好采油井的稳油控水治理,下一步要在加强剩余油分布和油藏地质研究的基础上进行开发调整。
Benchmarking analysis shows that the LG-7 pilot test area in Lungu oilfield and adjacent A-G district of Tahe oilfield in Tarim basin have similar petroleum geological conditions, with basically same abundance of OOIP. Both oilfields adopt off-pattern wells and a set of well pattern for natural depleting development. With concentrating in several local blocks, the current overall drilling density of LG-7 ar- ea is lower than that of A-G district. The comparison of the main development indices, it is revealed that the cumulative oil production, the average oil production of single well, the productivity index, the proportion of middle-high yield wells and the oil recovery are much lower but the comprehensive water cut is higher in LG-7 area. So the development efficiency of LG-7 area is much lower than that of A-G district during the same period. The research points out that the remained crude oil resources of LG-7 area is abundant and it still has a great poten- tial for next development. The urgent task for LG-7 area is to strengthen stable production and water cut control of production wells, and the next step is to make development adjustment on the basis of in-depth study of remained oil distribution and reservoir geology in this pilot test area.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2014年第2期198-203,共6页
Xinjiang Petroleum Geology
基金
中石油重大开发试验专项(101012kt3028001b60)
