西南石油大学学报（自然科学版）Issue(3)：54-58,5.DOI:10.11885/j.issn.1674-5086.2013.08.11.05
油气二次运移通道稳定性及其成因机制
Stability and Formation Mechanism Analysis of Secondary Migration Pathway of Hydrocarbon
摘要
Abstract
In order to accumulate in effective trap,hydrocarbon generated form source rocks has to go through a certain distance of secondary migration,therefore the process of hydrocarbon secondary migration has a great influence on ultimate hydrocarbon accumulation rate. The secondary migration process of crude oil can be divided into two types:piston pattern and advantage pattern;the secondary migration of gas is an intermittent migration process composed of piston pattern and advantage pattern. The difference of secondary migration pattern leads to the differences in the migration pathway stability between oil and gas. This study used dyed kerosene and nitrogen to conduct physical simulation experiment of secondary migration process respectively,and discussed secondary migration pathway stability of oil and gas through way of more than one filling,and analyzed its formation mechanism in view of the different physical characteristics between oil,gas and water and the relation of the difference to porosity of reservoir rock. In our opinion,a fairly stable migration pathway could be formed in the process of oil secondary migration,so its transport efficiency is higher;natural gas forms a relatively stable dynamic migration pathway in the process of secondary migration,the loss amount while migrating is larger.关键词
二次运移/优势通道/润湿性/稳定性/运聚效率Key words
secondary migration/preferential migration pathway/wettability/stability/migration and accumulation efficiency分类
能源科技引用本文复制引用
姜林,薄冬梅,洪峰,郝加庆,樊阳..油气二次运移通道稳定性及其成因机制[J].西南石油大学学报（自然科学版）,2014,(3):54-58,5.基金项目
国家科技重大专项（2011ZX05003-001）；中国石油科技项目（2011B-04）；中国石油勘探开发研究院院级项目（2011Y-004）。 （）
