南黄海南部盆地前第三系烃源岩成熟度及生烃期次研究  

THERMAL MATURATION AND HYDROCARBON GENERATION STAGES OF THE PRE-TERTIARY SOURCE ROCKS IN SOUTH BASIN, THE SOUTHERN YELLOW SEA

作　　者：杨树春[1] 蔡东升 冯晓杰 袁玉松[1] 胡圣标[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京,100029 [2]中海石油研究中心勘探研究院,河北高碑店,074010

出　　处：《中国海上油气（地质）》2003年第6期370-375,共6页China Offshore Oil and Gas(Geology)

基　　金：国家自然科学基金，中海石油研究中心资助项目

摘　　要：根据盆地热史及剥蚀量的恢复结果对南黄海南部盆地前第三系(主要为二叠系)烃源岩的成熟度及生烃期次进行了研究.古生代-中生代所经历的持续高热流过程以及早侏罗世-中侏罗世间大的抬升剥蚀,对该盆地二叠系烃源岩的成熟度及生烃状况造成了很大影响.二叠系烃源岩的生烃高峰期为三叠纪;后续埋藏过程对大部分地区二叠系烃源岩的生烃没有明显影响,但南四凹及南五凹地区二叠系烃源岩因新生界沉积厚度较大而于新生代再次生烃.Based on thermal history reconstruction and estimation of eroded thickness, the maturation and stages of hydrocarbon generation have been investigated for the pre_Tertiary(mainly Permian) source rocks in South basin, the southern Yellow Sea. A continued high heat flow from Paleozoic to Mesozoic and a large uplift and erosion from Early to Middle Jurassic have made a great impact on maturation and hydrocarbon generation of the Permian source rocks. A hydrocarbon generation peak of the source rocks occurred during Triassic, and the subsequent burial of the rocks didn't have a significant effect on their hydrocarbon generation in most areas. In South Ⅳ and South Ⅴ sags, however, a secondary hydrocarbon generation occurred during Cenozoic due to thicker Cenozoic sediments

关 键 词：南黄海南部盆地 前第三系 烃源岩 成熟度 生烃期次 剥蚀量 热史 油气勘探 

分 类 号：P618.130.2[天文地球—矿床学]