摘要
根据柴达木盆地西南部80余口钻井的岩心、测井等资料,对研究区中期基准面旋回层序进行了划分。在对柴达木盆地西南部第三系中期基准面旋回层序分析基础上,识别出向上变深、变浅的非对称型旋回层序和向上变深复变浅的对称型旋回层序3大类型。根据层序可容空间发育特征,进一步将每种类型层序进一步细分为3种、共9种样式;重点阐述了不同类型层序与砂体发育间的关系,并指出了各类型层序的岩性油气藏发育潜力。
Datum plane cyclostratigraphic sequence of the Middle Tertiary in the southwest Qiadam basin is divided 3 types and 9 styles on the basis of core and Jogging data of more than 80 wells. An approach to the relation of the 3 types with development of sand bodies with development of oil reservoir is made.
出处
《四川地质学报》
2010年第1期4-8,共5页
Acta Geologica Sichuan
关键词
基准面旋回层序
砂体
可容纳空间
柴达木盆地
datum plane cyclostratigraphic sequence
sand body
reservoir space
Qiadam basin
