川东石炭系储层有机包裹体、储层沥青与烃类运聚关系

Organic inclusions and bitumen associated with hytrocarbon migration and accumulation in the reservoir bed, East Sichuan China

根据石炭系储层中自生矿物所含有机包裹体类别、产状、分布及同期盐水流包裹捕获温度等特征，将烃类在储层中的油气演化及运聚划分为：（１）印支期的原油成熟阶段；（２）燕山—喜山期前的原油高成熟——凝析油阶段；（３）喜山期热裂解—甲烷气阶段。根据有机包裹体成分分析资料及储层沥青分布特征研究可将四川东部划分出开江—忠县—重庆区块。

The migration and accumulation of hydrocarbons can be divided into three stages (1) the mature crude oil of the Indo-China movement stage; (2) high-mature to condensate oil of the Yanshan movement to the Himalayan movement stage; (3) pyrolysis of liquid hydrocarbons and methane gas of Himalayan movement stage by studies on the types, attitude and distribution in the cement and filling of the Carboniferous reservoir bed. According to the character of the composition of hydrocarbon inclusions and distribution of the reservoir bitumen, the studied area has three regional zones with different history of migration, accumulation and maturity, which are the Kaijiang-Zhongxian-Chongqin region, Daxian-Guangan region and Wanxian-Yunyiang region.