Thermal regime and petroleum systems in Junggar basin, northwest China
文献类型：期刊论文
| 作者 | Wang, SJ; He, LJ; Wang, JY |
| 刊名 | PHYSICS OF THE EARTH AND PLANETARY INTERIORS
 |
| 出版日期 | 2001-11-01 |
| 卷号 | 126期号:3-4页码:237-248 |
| 关键词 | heat flow thermal history hydrocarbon generation petroleum system Junggar basin |
| ISSN号 | 0031-9201 |
| 文献子类 | Article |
| 英文摘要 | The conversion of organic matter into oil and gas depends upon temperature and time, and the study of thermal maturation of oil-source rocks in a petroleum system is of importance for formation of a petroleum system. Based on the temperature data from 196 wells and thermal conductivity measurements of 90 core samples, altogether 35 heat flow data are obtained in the Junggar basin. The results show that the Junggar basin is a relatively "cold" basin at present, with a mean temperature gradient and heat flow of 21 degreesC/km and 42mW/m(2), respectively. Thermal history reconstructed from vitrinite reflectance data indicates that the Paleozoic formations experienced their maximum paleotemperature during the Permian and Triassic at higher paleoheat flow of about 85 mW/m(2) and that the basin then cooled down to the present low heat flow. The high paleoheat flow can be attributed to the Carboniferous to Permian rifting. The thermal evolution has a quite important effect on the formation and evolution of the petroleum systems in the Junggar basin, i.e. the Permian and the Jurassic systems. The Jurassic petroleum system is quite limited in space for the cooled thermal regime during the Meso-Cenozoic and the source rocks of the Middle-Lower Jurassic entered the oil window only along the North Tianshan foreland region, where the Jurassic is buried to the depth of 5-7 km at present. In contrast, the Middle-Lower Permian source rocks have experienced oil and gas generation in late Permian to Triassic, and the Permian petroleum system was formed prior to the Triassic when the upper Paleozoic fort-nations reached their maximum paleotemperature due to higher paleoheat flow. (C) 2001 Elsevier Science B.V. All rights reserved. |
| WOS关键词 | VITRINITE REFLECTANCE ; TEMPERATURE ; HISTORY ; STATE ; FLOW ; OIL |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000172006800009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/76791]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, SJ |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.CNPC, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, SJ,He, LJ,Wang, JY. Thermal regime and petroleum systems in Junggar basin, northwest China[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2001,126(3-4):237-248. |
| APA | Wang, SJ,He, LJ,&Wang, JY.(2001).Thermal regime and petroleum systems in Junggar basin, northwest China.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,126(3-4),237-248. |
| MLA | Wang, SJ,et al."Thermal regime and petroleum systems in Junggar basin, northwest China".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 126.3-4(2001):237-248. |
入库方式： OAI收割
来源：地质与地球物理研究所
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