摘要：Deep marine carbonate strata are still in the early stage of exploration, and the evolution characteristics and main controlling factors of deep temperature and pressure field in marine basin are not clearly understanded. In this paper, the evolution of temperature and pressure of the Sinian gas reservoir in the central paleo-uplift of Sichuan Basin and the Ordovician condensate gas reservoir in the central uplift of Tarim Basin are reconstructed, on the basis of our summaries of suitable methods for deep marine reservoirs, in combination with our research findings and relevant literatures, the present geothermal gradient and heat flow in both the Sichuan and Tarim basins are lower. The Sinian Dengying Formation experienced the changes of warming-cooling-fast warming-fast cooling, which were mainly controlled by the heat flow and burial history. But the Ordovician in the central Tarim Basin underwent a sustained and slow warming process, and the present temperature is the highest during the geological time. The present-day pressures in both two reservoirs are in normal state. The Dengying Formation experienced the normal pressure, weak-overpressure, strong overpressure and pressure relief; but there were no obvious overpressures during the three major hydrocarbon accumulation periods in the Ordovician. The systematic research on temperature and pressure is not only very favorable for gas phase interpretations in these two gas reservoirs, but also provide modeling parameters for high temperature-high pressure experiment of carbonate rocks, improve the accumulation theory of deep marine strata, and support the further hydrocarbon exploration in deep marine gas field.
© 2018, Editorial Department of Earth Science. All right reserved.

ISSN号：1000-2383

卷、期、页：v 43,n 10,p3511-3525

发表日期：2018-10-01

发表期刊名称：Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences

参与作者：刘雯,徐秋晨,刘一峰

第一作者：邱楠生,常健

论文类型：期刊论文

论文概要：邱楠生,刘雯,徐秋晨,刘一峰,常健，Temperature-Pressure Field and Hydrocarbon Accumulation in Deep-Ancient Marine Strata，Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences，2018，v 43,n 10,p3511-3525

论文题目：Temperature-Pressure Field and Hydrocarbon Accumulation in Deep-Ancient Marine Strata