摘要
物理实验模拟是研究油气运移和聚集的重要手段和方法。而天然气物理模拟实验则是一个研究相对不足而又非常重要的领域 ,它的操作和完善可以大大促进我国西部天然气勘探 ,直接影响着西气东输的国策。本文正是涉及这个领域 ,选取柴北缘马海、南八仙气田作为研究对象 ,模拟了其成藏模式 ,认为在西部前陆盆地天然气成藏过程中断层与不整合及输导层相比 ,一般是优势通道 ;而南八仙凝析气田的形成具有差异聚集的特点 ,即下盘聚气而上盘不聚气 ,这种现象是由多种原因造成的 ,包括断层本身的非均质性。
Physical simulation experiment is important method to the second migration and accumulation of oil and gas. Physical simulation experiment of the natural gas is also an important field and its research is insufficient. Its research can indicate the exploration of the west of our country and have an influence on the policy of 'the west gas to east'. The paper studies the Nanbaxian and Mahai natural gas field and forms their accumulation model. It draw a conclusion that in the foreland basin of the west contrast with unconformity and permeable strata the fault is dominance channel; the Nanbaxian gas field has a character so called discrepance gathering. Many factors brings about it, including the anisotropy of the fault, the trap lacking of valuable height and having the fault connect to the surface.
出处
《地质论评》
CAS
CSCD
北大核心
2004年第6期644-648,i009-i010,共7页
Geological Review
基金
国家"十五"课题"重点前陆盆地大中型气藏形成的控制因素与分布规律"项目资助成果
