Characteristics of Hydrocarbon Source Rocks and Their Main Controlling Factors in Southeast Asia
详细信息
- 责任者：Yao Yongjian (Guangzhou Marine Geological Survey Bureau ; Guangzhou 510760 ; China) ; Lü Caili
- 刊名：Earth Science
- 出版年：2013
- 卷期：38(2)
- 关键词：烃源岩 ; source rocks ; 东南亚 ; Southeast Asia
- 页码：p.367-378
- 图表：illus., 4 tables, 27 refs.
- 分类号：1003
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
摘要
Based on the research of the sedimentary and structural features, hydrocarbon source rocks in the main sedimentary basins in Southeast Asia can be defined into multi-phases and those in Miocene, Oligocene and Eocene are the most important three sets. The pre-Cenozoic source rocks have certain potentials, but with limited distribution. The three sets are mainly fluvial facies to paralic delta with terrigenous kerogen-based coal and carbonaceous shale (mudstone), followed by lacustrine and marine depositional including mudstone and shale. The total organic carbon in these rocks has reached to intermediate to good dominated by Ⅱ-Ⅲ type of kerogen, and most of them are in the stage of mature to over-mature. The generation and distribution of the source rocks are mainly controlled by two geological factors, namely, tectonic evolution and depositional environments of the basins, and closely related to the direction and scale of regional transgression. Therefore, the fractionations in the type and the thermal evolution degree of hydrocarbon source rocks are the most important factors contributing to the various types of oil and gas reservoirs in Southeast Asia.
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