摘要
根据岩石铸体薄片和扫描电镜观察资料，分析了吐哈盆地台北凹陷中侏罗统储集层的岩性特征。七克台组中上部储集层以岩屑砂岩为主，属于第一岩性段．七克台组下部一西山窑组储集层以长石岩屑砂岩为主，属于第二岩性段．砂岩的岩性特征对储集层的物理性质具有明显的影响作用。
ock properties of Middle Jurassic reservoir in Taibei sag of Tuba basin have beenstudied by means of the casting thin sections and scanning electron microscope. Thereservoir in middle and upper part of Qiketai formation is mainly composed of lithicsandstone, which is the first lithologic section. The reservoir from the lower part of Qiketaiformation to Xishanyao formation is mainly composed of feldspathic litharenite, which is thesecond lithologic section. The physical properties of Middle Jurassic reservoir are influencedby the lithologic characters of sandstone.
出处
《西北地质科学》
1999年第1期23-26,共4页
Northwest Geoscience
关键词
吐哈盆地
储集层
岩石特征
物理性质
油气地质
Tuba basin, Reservoir, Petrological Properties, Physical properties
