中卢卡尼亚盆地中新世碳酸盐岩建隆发育主控因素及其油气意义

Controlling factors and hydrocarbon significances of Miocene carbonate buildups in Central Luconia Basin

马良涛 王春修 郑求根 雷宝华

Ma Liangtao Wang Chunxiu Zheng Qiugen Lei Baohua

中国石油勘探开发研究院,北京 100083 中海油研究总院 海外评价中心,北京 100027 中国地质大学(北京) 海洋学院,北京 100083 青岛海洋地质所,山东 青岛 266071

Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China Research Center, CNOOC, Beijing 100027, China College of Ocean Science, China University of Geosciences, Beijing 100083, China Qingdao Institute of Marine Geology, Qingdao, Shandong 266071, China

中—晚中新世，中卢卡尼亚盆地以发育碳酸盐岩建隆为特征，碳酸盐岩建隆的生长主要受控于构造活动强度、古地貌、海平面变化及陆源碎屑物质的输入：1）中—晚中新世，盆地稳定的构造背景有利于碳酸盐岩建隆的生长；2）渐新世—早中新世，伸展、走滑作用形成的北东—南西向地堑、地垒构造控制了碳酸盐岩建隆的类型和分布；3）海平面周期性升降影响碳酸盐岩建隆生长的旋回性；4）中中新世晚期、晚中新世和上新世，由盆地南缘、东南方向输入的陆源碎屑物质，抑制了碳酸盐岩建隆的生长，并使得其储集物性出现平面上的差异。最后，分析了碳酸盐岩建隆的油气储盖组合特征及其内部油气聚集影响因素。

During the Middle -Late Miocene, the Central Luconia Basin was characterized by the extensive development of carbonate buildups. Tectonic activity strength, palaeogeomorphology, sea level alternation and the influx of terrestrial material dominated the development of carbonate buildups. 1) The basin remained stable throughout the Middle-Late Miocene, thereby facilitating carbonate deposition. 2) From Oligocene to the Early Miocene, due to extensional and strike-slip tectonics, it was formed in this area the NE-SW trending graben and horst which dominated the type and distribution of carbonate buildups. 3) The cycle of carbonate buildup growth was related to the cycle change of sea level. 4) From the late stage of the Middle Miocene to Pliocene, terrestrial materials migrated from the south and southeast of the basin, suppressed the growth of carbonate buildups, resulting in the plane difference of reservoir physical property. Finally, the reservoir-cap combination features and the controlling factors for petroleum accumulation in carbonate buildups were analyzed.

国家科技重大专项“东南亚海域盆地油气地质特征与成藏规律研究”（2008ZX05030-001-04）资助。

https://doi.org/10.11781/sysydz201305539