南黄海崂山隆起中、古生界油气保存条件分析  

Evaluation of hydrocarbon preservation on the Laoshan uplift

作　　者：许振强[1,2] 梁杰[1,3,4] 陈建文[3,4] 张鹏辉 张银国[3,4] 王建强 雷宝华 杨传胜[3,4] XU Zhenqiang1,2 , LIANG Jie1,3,4 , CHEN Jianwen3,4 , ZHANG Penghui5,6 , ZHANG Yinguo3,4 , WANG Jianqiang3,4 , LEI Baohua3,4 , YANG Chuansheng3,4(1. College of Marine Geosciences , Ocean University of China, Qingdao 266100, China 2. Department of Geological Investigation, China Geological Survey, Beijing 100037, China 3. Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, China 4. Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China 5. College of Oceanography, Hohai University, Nanjing 21009g, China 6. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610059, Chin)

机构地区：[1]中国海洋大学海洋地球科学学院,青岛266100 [2]中国地质调查局基础调查部海洋地质处,北京100037 [3]中国地质调查局青岛海洋地质研究所,青岛266071 [4]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,青岛266071 [5]河海大学海洋学院,南京210098 [6]油气藏地质及开发工程国家重点实验室,成都610059

出　　处：《海洋地质与第四纪地质》2018年第3期125-133,共9页Marine Geology & Quaternary Geology

基　　金：山东省自然科学基金博士基金项目"松辽盆地南部下白垩统辫状三角洲致密气砂岩储层差异性成岩演化过程对储层储集性能的影响"(ZR2017BD034);国家专项项目(DD20160152;DD20160147);南黄海前第三系油气前景研究(XQ-2005-01);南黄海崂山隆起和滩海区海相地层油气资源战略选区(2009GYXQ10);国家自然科学基金青年基金项目"下扬子地区下寒武统深水陆棚相富有机质泥页岩差异性成岩演化过程及其对孔隙发育的控制作用"(41702162);油气藏地质及开发工程国家重点实验室开放基金(PLC201712)

摘　　要：崂山隆起位于南黄海盆地中部,海相中-古生界分布广泛且厚度大,其构造演化经历了加里东、海西、印支、燕山和喜山等多期构造运动,早期油气聚集可能在后期受到不同程度的破坏,因此,油气保存条件是崂山隆起油气勘探能否取得突破的关键因素。通过综合分析构造运动中抬升剥蚀作用和断裂作用与油气保存的关系,以及盖层条件与油气保存的关系,探讨崂山隆起内部油气保存条件的差异性以指导该区油气勘探。结果表明:崂山隆起呈差异性油气保存特点,位于崂山隆起中南部的高石稳定带是一个早期断裂不发育的弱变形区,后期构造运动改造破坏程度较弱,特别是下古生界具备较为优越的生储盖组合,构造多以断背斜和低幅宽缓背斜为主,发育多个大型圈闭,岩浆活动相对较弱,油气保存条件较为优越;而崂山隆起北部的青峰变形带断裂系统发育,地层褶皱变形强烈,单个圈闭规模较小,油气保存条件相对较差;高石稳定带中南部是进一步油气勘探和调查参数井钻探的重点目标区。The Laoshan uplift is located in the middle of the South Yellow Sea basin,on which thick Mesozoic-Paleozoic marine sequences are widely distributed.Tectonically,it has suffered many times of tectonic movements,such as the Caledonian,Hercynian,Indosinian,Yanshanian and Himalayan.Early hydrocarbon accumulation might have been damaged to certain degrees by the tectonic movements.Therefore,the hydrocarbon preservation conditions are the key factors for the breakthrough of hydrocarbon exploration on the uplift.In this study,the relationship of hydrocarbon preservation with tectonic movements as well as that with cap-rock property is discussed.The differences in hydrocarbon preservation conditions on the Laoshan uplift are analyzed for hydrocarbon exploration in that area.The results show that the Gaoshi Stable Zone in the middle and southern part of the Laoshan uplift is a weak deformation zone.The lower Paleozoic of the zone is mainlycomposed of large traps,magmatic activity is relatively weak,and hydrocarbon preservation conditions are superior.However,in the Qingfeng deformation zone in the northern part of the uplift,the fractures and folds are strong,and the individual traps are small in scale and thus the hydrocarbon preservation conditions are relatively poor.In conclusion,the middle and southern parts of the Gaoshi stabilization zone are the key target areas for further oil and gas exploration.

关 键 词：构造运动 盖层条件 油气保存条件 海相中-古生界 崂山隆起 南黄海 

分 类 号：P418.130.2[天文地球—大气科学及气象学]