摘要
进行沉积相的研究可以指明储层的分布规律及有利的含油气相带,更好地指导油田的勘探和开发。在对辽河盆地东部凹陷中北段岩石相、测井相分析研究基础上,对该区沉积体系进行了沉积相组合划分,并对各沉积相组合特征分析研究认为,本区发育了多种沉积体系和沉积相类型,主要有利相带为冲积扇扇中亚相、扇三角洲前缘亚相、河道亚相和水下分支流河道,并对该区下步隐蔽油气藏勘探具有重大的意义。
Studying the sedimentary facies can designate the distribution regularity of reservoirs and the favorable oil -gas bearing facies zones, guide the exploration and development of the oilfields. Based on the studies of the petrographic facies and log facies in middle and north section of east depression in Liaohe basin, sedimentary facies association and classification for sedimentary system in the area have been carried out, through the analysis and study for the various sedimentary facies association, it is thought that there are many sedimentary systems and sedi- mentary facies in the area, the most favorable facies is alluvial fan middle subfacies, fan delta front subfacies, channel subfacies and subaqueous distributary channel. The findings of this study may be significant for the follow- ing exploration of the subtle oil - gas reservoirs in this area.
出处
《吐哈油气》
2009年第3期204-207,共4页
Tuha Oil & Gas
关键词
岩石相
测井相
沉积相
沉积特征
东部凹陷
petrographic facies
log facies
sedimentary facies
sedimentary characteristics
east depression
