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准噶尔盆地南缘西部天然气封盖层的有效性
石油实验地质
1999年 21卷 第2期
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Title
EFFECTIVENESS OF NATURAL GAS SEALS IN THE WESTERN PART OF THE SOUTHERN FRINGE OF THE JUNGGAR BASIN
Authors
FANG Dequan
SONG Yan
XIA Xinyu
单位
中国石油天然气总公司 石油勘探开发科学研究院地质所, 北京 100083
Organization
Geology Branch, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China
摘要
本文在对天然气封盖层进行古埋藏史、古异常压力进行恢复的基础上,结合主力烃源岩的生排烃时间,对准噶尔盆地南缘西部天然气封盖层的有效性作出了评价。
Abstract
Based on the restoration of the paleo-burial history and paleo-anormalous pressure of natural gas seals,the effectiveness of natural gas seals in western part of the southern fringe of the Junggar Basin has been evaluated combined with the hydrocarbon-generating and hydrocarbon-discharging time of major source rock.It is considered that the Anjihaihe Formation is the effective caprock for the Jurassic source rock,and the Sangonghe Formation and the Baijiantan Formations are effective for the Middle Permian one.
关键词：
天然气;
盖层;
烃源岩;
准噶尔盆地;
Keywords:
natural gas;
cap rock;
hydrocarbon source rock;
the Junggar Basin;
DOI
https://doi.org/10.11781/sysydz199902138
论文详情