西南石油大学学报（自然科学版）2012，Vol.34Issue(1)：6-12,7.DOI:10.3863/j.issn.1674-5086.2012.01.002
龙女寺构造须家河组天然气成藏主控因素
Control Factor of Natural Gas Accumulation in Xujiahe Formation,Longnüsi Structure, Sichuan Basin
摘要
Abstract
The natural gas reservoir in Xujiahe Formation of Longniisi structure is a typical lithologic gas reservoir, with the low trap closure, the tight reservoir, and the complicated gas-water contact. The paper analyzes the source rocks, reservoir rocks, cap rocks and trap conditions of gas reservoir of Xujiahe Formation, and conculdes that the Xujiahe Formation is advantageous play. The Apatite Fission Track and Easy%Ro Chemical Kinetics Simulation! Are both used to reconstruct the hydrocarbon-generation history of source rock. Combined with the structural evolution, the charging process of Xujiahe Formation gas reservoir was reproduced. The accumulation process is divided into three phases: early hydrocarbon charging at the end of middle Jurassic, the dominant hydrocarbon charging period at the end of Cretaceous, and the final accumulation of gas pools during Himalayan. The main controlling factors of gas accumulation in Xujiahe Formation are analyzed in the paper. High-quality hydrocarbon source rock is the primary material, the ancient and present structural high are the available zones for the hydrocarbon migration, the reservoir physical property and the trap closure control the gas-water distribution in the gas reservoir, and the fractures developed locally is a key factor of gas accumulation and high productivity in the Xujiahe Formation.关键词
四川盆地/龙女寺构造/须家河组/成藏主控因素/磷灰石裂变径迹Key words
Sichuan Basin/ Longniisi structure/ Xujiahe Formation/ the controlling factors of gas accumulation/ apatite fission track分类
能源科技引用本文复制引用
袁海锋,倪根生,邓小江..龙女寺构造须家河组天然气成藏主控因素[J].西南石油大学学报（自然科学版）,2012,34(1):6-12,7.基金项目
国家科技重大专项(2008ZX05001-05-01) （2008ZX05001-05-01）
