摘要
柴窝堡盆地具前震旦系结晶基底,二叠系至第四系组成盆地盖层。从石油地质特征分析,柴窝堡盆地具一定的成藏条件,主要烃源岩为上二叠统芦草沟组,储集层主要为芦草沟组砂岩或砂砾岩,上覆红雁池组-仓房沟群为良好的盖层。燕山运动和喜山运动为圈闭形成和定型期,大量排烃期是侏罗纪—白垩纪,油气生成、运移期匹配较好。本区发育3大套生储盖组合,从构造上分析芨芨槽子古隆起周围及雷家沟构造带深部的芦草沟组有利生油区,物性较好,为油气运移指向,是下一步勘探的有利目标。
Introduction is given of regional tectonic setting, structural units and stratigraphic sequence of Caiwobu basin. The features of petroleum geology of Caiwopu basin indicate its potential of possessing a certain reservoir-forming conditions. The research results show that the main hydrocarbon source rocks are Lucaogou Group of Upper Permian, and its major period of hydrocarbon expulsion lies between Jurassic and Cretaceous. The main reservoir rocks are sandstones and sandy conglomerates of Lucaogou group, and the cover rocks are the overlying Hongyanchi group and Cangfanggou group. The timing of trap and stabilization is respectively of Yanshanian and Himalayan phases. Three sets of source-reservoir-cover rocks are developed in the region. Structural analysis shows that areas near Jijicaozi uplift and Leijiagou are favorable for storage of hydrocarbon, which are listed as the next exploration targets.
出处
《新疆地质》
CAS
CSCD
2002年第4期384-388,共5页
Xinjiang Geology
关键词
新疆
柴窝堡盆地
石油地质
勘探前景
烃源岩
生储盖
圈闭
Xinjiang
Caiwopu basin
petroleum geology
exploration prospect
hydrocarbon source rock
source -reservoir-cover association
