复杂断块老区油藏精细构造解释技术研究及应用  

Study and application of fine structure interpretation technology in old reservoir of complex fault block

作　　者：王奇韵 侯庆杰 钱志[1] WANG QiYun;HOU QingJie;QIAN Zhi(Geophysical Research Institute,Sinnopec Shengli Oilfield Company,Dongying 257022,China;Shengli Petroleum Administration Bureau Postdoctoral Research Station,Dongying 257022,China)

机构地区：[1]中国石化胜利油田物探研究院,东营257022 [2]胜利石油管理局博士后科研工作站,东营257022

出　　处：《地球物理学进展》2021年第6期2610-2617,共8页Progress in Geophysics

摘　　要：随着油田开发程度越来越高,勘探难度随之加大,处于开发中后期的复杂断块老区油田面临着低序级解释刻画困难、空间上断层组合关系复杂、油气分布复杂等难点,如何提高复杂断块老区油藏低序级断层识别精度、降低断层组合的多解性是相关地质工作者非常之重要的工作,解决此类难题势必需要研究更为先进且针对性的技术.地震资料的品质决定低序级识别、断裂系统组合能力,常规处理的地震资料能够清晰识别中、大尺度断层,但是对于断距5~7 m的低序级断层来说,常规处理的地震资料的分辨率是远远不够的,因此有必要多学科、多技术相融合,通过综合多种资料,形成多体联合构造解释流程.针对这一问题,本文提出首先利用高频谐波提频、非线性扩散滤波断层增强等地震资料解释性处理技术提高地震数据资料的分辨率,在此基础上着重结合单井解剖、连井对比分析,井震联合,并结合生产动静态资料,形成井断点控点、地震强化体控线的多体联合、剖面与平面联合的多体联合分级构造解释流程,精细刻画识别5~7 m低序级断层.结果证实,本文所述的技术序列能够很好的反应复杂断块油藏构造形态,避免了低序级断层发育以及断层组合多解性强的问题,提高构造解释精度,提供了可复制性的思路方法.With the increasing development of oilfield,exploration is becoming difficulty.In the middle and late stage of development,the old area of complex fault block is faced with the difficulties of low-order interpretation,complex fault combination in space,complex oil and gas distribution and large difference of reserves distribution among different fault blocks.How to improve the identification accuracy of low-order faults and reduce the multiplicity of fault assemblages is a very important work for the geologists concerned.To solve these problems,more advanced and targeted technologies must be researched.The quality of seismic data determines the combination ability of low order classification and fault system,Conventional Processing of seismic data is far from adequate for the resolution of a fault with a distance of 5~7 m.In response to this problem,this paper proposes to use high-frequency harmonics to improve the resonlution of seismic data.On this basis,the emphasis is laid on the comparative analysis of Connected Wells,Combining the dynamic and static production data,the tectonic interpretation flow is formed,and the 5~7 m faults are characterized and identified.The results show that the technical sequence described in this paper can reflect the structural morphology of complex fault-block reservoir,improve the accuracy of structural interpretation,and provide a reproducible method.

关 键 词：复杂断块 解释性处理 低级序断层 井震联合 精细构造解释 

分 类 号：P631[天文地球—地质矿产勘探]