车西洼陷北带湖底扇成因机制及其勘探意义  

The Origin of Sublacustrine Fan and Its Significance for Exploration in Northern Chexi Sub-Sag,Jiyang Depression

作　　者：范振峰[1] 

机构地区：[1]中国石化胜利油田有限责任公司地质科学研究院,山东东营257015

出　　处：《新疆石油地质》2007年第1期48-50,共3页Xinjiang Petroleum Geology

摘　　要：湖底扇是车西洼陷北部陡坡带的一种重要的沉积类型,具有自生、自储的特点,成藏条件优越。根据其成因机制上的差异,又可进一步分为滑塌浊积扇和深水浊积扇等两种沉积类型,二者在地震反射特征、沉积特征及空间展布上均有一定的差别。由于受到剖面结构和异常高压流体封存箱的影响,扇体的储集物性和含油性均较好,具有较大的勘探价值。The sublacustrine fan, as an important deposit in aetic region of northern Chexi sub-sag, is characterized with both source and reservoir in it and favorable hydrocarbon accumulation conditions. According to the difference of the genetic mechanism, it is further divided into the slump turbidite fan and the deep-water turbidite fan for they have some differences in seismic profile, depositional character and space distribution. It is suggested that this fan is of good reservoir quality and oil-bearing property due to the effect of the profile structure and the abnormal high pressure fluid compartment, thus having higher values for petroleum exploration.

关 键 词：济阳坳陷 车西洼陷 湖底扇 陡坡带 成因机制 流体封存箱 

分 类 号：TE111.3[石油与天然气工程—油气勘探]