油气地质与采收率2011，Vol.18Issue(6)：14-17,4.
徐家围子断陷深层不整合结构及其与天然气运移的关系
摘要
Abstract
In order to study the relationship between the unconformity and the migration of natural gas, this paper analyzes the unconformity , rock structure, porosity and permeability by seismic and drilling data in the Xujiaweizi depression. The transportation path types of unconformity are divided into two categories and 9 subtypes by the exploration dates. The paper also summarizes the four types of natural gas migration model associated with the unconformity. The paper considers that the volcanic rocks are the important component of the unconformity. The porosity and permeability of half-weathered volcanic rocks is better than the volcanic rocks as upper part of unconformity. When the trap is adjacent to the source rocks, the unconformity can migrate the natural gas independently, when the trap is far from the source rocks, the unconformity together with the fault are the main hydrocarbon migration path for the volcanic reservoir in Yingcheng formation.关键词
火山岩/不整合/空间结构/孔渗性/运移通道类型/天然气运移/徐家围子断陷Key words
volcanic rocks/unconformity/spatial structure/porosity and permeability/type of hydrocarbon migration path/natural gas migration/Xujiaweizi fault depression分类
能源科技引用本文复制引用
刘维亮,夏斌,孙治雷,蔡周荣,夏连泽,万志峰,陈玉琴..徐家围子断陷深层不整合结构及其与天然气运移的关系[J].油气地质与采收率,2011,18(6):14-17,4.基金项目
国家重点基础研究发展计划“973”项目“南海深水盆地油气资源形成与分布基础性研究”(2009CB219401). （2009CB219401）
