基于CSDP-2井的南黄海海相地层地球物理性质研究进展及其地质意义  

Research progress and geological significance of geophysical properties of marine strata based on well CSDP-2 in South Yellow Sea

作　　者：张升升 吴志强 朱俊江[1,2] 郭兴伟[2,3] 贾仲佳 欧小林 张绍玉[1,2] 陈瑞雪 ZHANG Shengsheng;WU Zhiqiang;ZHU Junjiang;GUO Xingwei;JIA Zhongjia;OU Xiaolin;ZHANG Shaoyu;CHEN Ruixue(College of Marine Geosciences,Ocean University of China,Qingdao 266100,Shandong,China;Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266071,Shandong,China;Qingdao Institute of Marine Geology,China Geological Survey,Qingdao 266071,Shandong,China)

机构地区：[1]中国海洋大学海洋地球科学学院,山东青岛266100 [2]青岛海洋科学与技术国家实验室海洋矿产资源评价与探测技术功能实验室,山东青岛266071 [3]中国地质调查局青岛海洋地质研究所,山东青岛266071

出　　处：《世界地质》2022年第3期583-596,606,共15页World Geology

基　　金：国家自然科学基金项目(41776081);中国地质调查局项目(DD20190365)联合资助。

摘　　要：南黄海中—古生代海相地层的性质与分布特征,既是扬子块体岩相古地理研究的重要内容,又是油气勘探的重点部分。为探究建立一套可靠的海相地层岩石物性相关模型,笔者收集整理了大陆架科学钻探CSDP-2井系统测井和岩芯物性测试结果,采用对比归纳和综合校正的方法对海相沉积层的岩石物性、层位标定以及油气储集等特征进行分析,研究结果表明:海相地层存在8个区域地震反射波组和6个电性层;T_(10)反射界面对应的是二叠系栖霞组的底界;下志留统—上泥盆统和上二叠统局部砂岩层段发育有低渗能力的致密砂岩储集层。The properties and distribution characteristics of Mesozoic Paleozoic marine strata in the South Yellow Sea are not only an important content of lithofacies paleogeography of the Yangtze block,but also the key part of oil and gas exploration.In order to explore and establish a set of reliable rock physical property related models of marine strata,the authors collect and arrange the system logging and core physical property test results of well CSDP-2 of continental shelf scientific drilling,and analyze the rock physical properties,horizon calibration and oil and gas reservoir characteristics of marine sedimentary layers by using the methods of comparison,induction and comprehensive correction.The results show that there are 8 regional seismic reflection wave groups and 6 electrical layers in marine strata,which T_(10) reflection interface corresponds to the bottom boundary of Qixia Formation of Permian.Tight sandstone reservoirs with low permeability are developed in local sandstone intervals of Lower Silurian-Upper Devonian and Upper Permian.

关 键 词：南黄海 海相地层 大陆架科学钻探 地球物理性质 层位标定 

分 类 号：P618.13[天文地球—矿床学] P736[天文地球—地质学]