【摘要】 在油藏开发的高含水阶段,寻找剩余油分布,调整注采关系等是油藏进一步开发的核心问题.微幅度构造常常是剩余油的富集区域,而小断层的存在往往会影响注采关系.以往的地质分析都是基于已钻井的钻测资料,对于井间的微幅度构造以及小断层的分布情况无法进行预测,本文提出了井震联合精细构造解释方法,即综合利用已钻井资料和高精度三维地震资料,采用精细层位标定,井震联合小层对比统层,井震联合建立高精度三维速度场,趋势面分析法和"蚂蚁算法"等方法,形成了油藏开发中的井震联合精细构造解释的方法流程.该方法通过在实例中的应用能有效地寻找剩余油富集区和发现小断层,并且结果都得到了生产中动静态资料的验证,研究表明,井震联合精细构造解释可以有效预测井间的微幅度构造以及小断层的分布情况,对于油藏开发阶段寻找剩余油分布,调整注采关系具有重要的指导意义.更多还原

【Abstract】 At the high water stage of reservoir development,the keys to further developing the reservoir are looking for the remaining oil distribution and adjusting the injection-production relation.Microstructure is usually the enrichment area for the remaining oil,and also small fault has an influence on the injection-production relation.The normal geological analysis is based on the data of the drilled wells,so the mircrostructure and small faults between wells are difficult to be found.This article proposed the refined seismic structure interpretation based on the good quality 3D seismic data and well data.The refined structure interpretation methods include the horizon calibration,geological lays calibration basing on the well and seismic data,3D velocity field construction,trend surface analysis and "ant algorithm".Being introduced with the examples,the flow of the refined structure interpretation methods is formed.The examples also show that the method is effective to find the microstructure and small faults,which is confirmed by the data in later production.The success rate of development wells will be improved and the reservoir will be managed more properly.更多还原