Key Tectonic Change Epoch and Hydrocarbon Accumulation Periods of Continental Clastic reservoir in Sichuan Basin

详细信息   

• 责任者：Jin Wenzheng (Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism ; MOE ; China University of Geosciences ; Beijing 100083 ; China) ; Wan Guimei
• 刊名：Fault-Block Oil and Gas Fields
• 出版年：2012
• 卷期：19(3)
• 页码：p.273-277
• issnNo：ISSN1005-8907
• isbnNo：CN41-1219/TE

摘要

Sichuan Basin has experienced multi-episode tectonic evolutions,including Indo-China movement,Yanshan movement and Himalayan movement.After analyzing the accumulation periods of some continental clastic reservoirs,it is considered that the continental clastic reservoirs in Sichuan Basin have also experienced three epoches of evolutions,namely Late Indo-China epoch,Mid-Late Yanshan epoch and Early Himalayan epoch,showing the consistency between tectonic evolution and hydrocarbon accumulation in Sichuan Basin.In the northern area of western Sichuan Basin,the accumulation time of gas reservoir is much earlier than that in the southern area because there are some differences among the tectonic activity of continental clastic reservoirs in western Sichuan Basin.The accumulation time becomes earlier from the west to the east and the reason may be differences of the tectonic activity between Sichuan Basin and its surrounding mountains.The foreland basins in western Sichuan Basin are close to the Longmen Mountain thrust belt.From Longmen Mountain to the center part of basin,the deformation becomes weaker.