【摘要】 渤中26油田4-1992砂体中泥岩隔夹层的发育影响了对该砂体的高效开发。为了预测研究区泥岩隔夹层的横向分布范围,在精细分析该区隔夹层地球物理响应特征的基础上,采用地层切片技术与地震属性分析相结合的方法,对该区隔夹层的成因进行了细致分析;在用不同的属性计算方法进行多种实验分析后,优选了均方根振幅、负振幅之和以及能量半衰时3种地震属性,并采用地震属性聚类分析的综合研究思路,对研究区隔夹层的横向分布范围进行了识别与刻画。通过分析认为,研究区泥岩隔夹层主要发育在砂体的中部,并呈现出不稳定的横向分布特点。该研究思路对其他复杂断块油田隔夹层的识别与刻画具有一定的借鉴意义,也为类似油田的高效开发提供了技术保证。更多还原

【Abstract】 The development of mudstone interbeds affected the high-efficiency development of sand 4-1992 in Bozhong 26 oilfield of Bohai. In order to predict the lateral distribution of mudstone interbeds, we used the method of integrative analysis of strata slice and seismic attributes to study the interbeds genesis based on the fine analysis of interbeds geophysical response. Based on the different seismic attributes calculation methods for several experimental analyses, we optimized three kinds of seismic attributes: RMS amplitude, sum negative amplitude and energy half time. We used the method of seismic attributes cluster analysis to identify and depict the lateral distribution of interbeds. It is considered that mudstone interbeds in the study area are mainly developed in the central part of sand body and presents unstable transverse distribution characteristics. This research idea has certain referential significance for identifying and characterizing the interbeds in complex fault block oilfield, and can provide technical assurance for the efficient development of similar oilfields.更多还原