摘要
吐哈盆地鲁克沁构造带,是一个亿吨级的稠油聚集带。其含油层位从发现伊始就莫衷一是,勘探生产采纳了将其划归中三叠统克拉玛依组上段(克二段)的意见。我们认为这一方案不完全符合陆相盆地地层划分原则,尤其是孢粉地层学的局限性未予以足够重视,其划分依据值得商榷。通过对几个典型孢粉化石的演化、迁徙和生境的探析,认为油层段归属为上三叠统比较适宜。
Lukeqin structural belt is a heavy oil abundance zone of billion ton magnitude, where stratigraphic classification of the oil-bearing formation has been controversial since its discovery. The oil - bearing formation was classified to the upper section of Mid - Triassic Kelamayi group in past exploration, but which is not consistent with the principles of stratigraphic classification for continental basins, especially the limitation of palynostratigraphy wasnt taken into account. Through investigation of the evolution, migration and ecologic environment of several typical sporopellen fossils in this formation, it is concluded that the formation should be classified as upper -Triassic.
出处
《吐哈油气》
2004年第3期208-218,共11页
Tuha Oil & Gas
