论文部分内容阅读
车镇凹陷大王庄地区沙二段是该区主要的勘探目的层段,其储层主要为滩坝砂体。尽管前人对滩坝砂体研究的比较深入,但是对于大王庄砂二段滩坝砂体仍具有自己的沉积特色。根据对测井曲线特征及其组合以及地震反射特征的研究,识别出不同级别的层序地层界面和湖泛面特征,通过联井对比,建立了滩坝砂体和层序地层演化之间的关系。根据钻井岩心和测井曲线的综合分析,对大王庄地区沙二段滩坝砂体的沉积特征进行了深入的研究,划分出了坝主体微相、坝侧缘微相和坝间微相以及滩主体和滩间微相。
The Sha-2 section of Dawangzhuang area in Chezhen Depression is the main exploration target section in this area. The reservoirs are mainly beach-bar sand bodies. Although the predecessors studied the beach bar sand body more deeply, it still has its own sedimentary characteristics for the beach bar sand body of the second section of Wangzhuang sand section. Based on the study of well logging curves and their combination and seismic reflection characteristics, different levels of sequence stratigraphic and lake facies features are identified. By comparing wellbores, the relationship between the beach bar sand bodies and the sequence stratigraphy evolution is established relationship. Based on the comprehensive analysis of drilling core and well logging curve, the sedimentary characteristics of the beach-bar sand body of Sha-2 member in Dayaozhuang area are studied in depth. The main body microfacies, the lateral microfacies and the interbedded microfacies are classified Beach main body and the beach between the micro-phase.