应用烃类分段捕获原理研究油气运移聚集过程  

HYDROCARBON MIGRATION AND ACCUMULATION BY PHASED CAPTURE PRINCIPLE

作　　者：李延钧[1] 李其荣[1] 梁艳[1] 杨坚[2] 罗文军[1] 袁续祖 蒲洪果 

机构地区：[1]西南石油大学 [2]中国石油西南油气田公司蜀南气矿

出　　处：《天然气工业》2007年第6期31-34,共4页Natural Gas Industry

基　　金：四川省重点学科建设项目(编号:SZD0414)资助

摘　　要：根据烃类生成、构造活动和圈闭形成的阶段性,以及油气运移聚集存在分段捕获的原理,对川中—川南过渡带安岳—包界地区上三叠统须家河组须二段油气成藏过程进行了研究。结果认为,该区北部的安岳—通贤地区主要捕获了须家河组低演化系列煤成烃类,由于构造运动改变了油气运聚方向,未能进一步捕获后期较高演化阶段的烃类,具有分段捕获的特点;而该区南部的包界地区不仅捕获了低演化阶段的烃类,同时还捕获了成熟—高熟早期须家河组煤成烃类,具有连续累积捕获的特点。The process of hydrocarbon reservoiring in the second member of the Upper Triassic Xujiahe Formation in Anyue-Baojie area, a transition zone between the central and southern parts of Sichuan Basin, is studied based on the episodic hydrocarbon generation, tectonic movement and formation of traps and the principle of phased hydrocarbon migration and accumulation. The Anyue-Tongxian in the northern part of the study area mainly captured coal-derived hydrocarbons generated by the Xujiahe Formation in the early evolutionary phase, without capturing any hydrocarbons generated later in the late evolutionary phase, due to the change of hydrocarbon migration direction caused by tectonic movement, thus it is characterized by phased capture of hydrocarbons. In contrast, Anyue in the southern part of the study area captured not only the hydrocarbons generated in the early evolutionary phase, but also in the mature to early post-mature phase, thus it is characterized by continuous capture of hydrocarbons.

关 键 词：四川盆地 川中-川南过渡带 烃类 分段 捕获 油气运聚 成藏 古构造带 

分 类 号：P618.13[天文地球—矿床学]