沉积与特提斯地质Issue(2)：72-78,7.
塔里木盆地天山南缘区带古近系苏维依组沉积储层研究
Sedimentary facies and hydrocarbon reservoirs from the Palaeogene Suweiyi Formation in southern Tianshan Mountains, Tarim Basin, Xinjiang
孙美静 1刘杰2
作者信息
- 1. 广州海洋地质调查局，广东 广州 510760
- 2. 中国地质大学 武汉，湖北 武汉430074
- 折叠
摘要
Abstract
Sedimentary facies and hydrocarbon reservoirs from the Palaeogene Suweiyi Formation in southern Tianshan Mountains, Tarim Basin, Xinjiang are examined on the basis of lithologic and physical properties of the hydrocarbon reservoirs. The Suweiyi Formation is separated into two parts:sandstone intervals in the lower part and gypsum mudstone intervals in the upper part, and composed of braided delta and lake depositional systems. The hydrocarbon reservoirs mostly consist of siltstone, fine-grained sandstone, medium-grained sandstone, and gravel-bearing sandstone, including feldspar quartz sandstone and lithic feldspar sandstone. The porosity types contain the primary intergranular pores and solution openings, and cracks and microcracks. On the whole, the basal sandstones especially the delta front distributary channel and sheet sandstones with excellent physical properties belong to the medium-porosity and medium-to low-permeability reservoirs with heavy heterogeneity. The main influencing factors include sedimentary facies and diagenesis in which compaction, dissolution and cementation are believed to be the main diagenetic effects.关键词
储层/沉积相/苏维依组/天山南地区Key words
reservoir/sedimentary facies/Suweiyi Formation/southern Tianshan Mountains分类
能源科技引用本文复制引用
孙美静,刘杰..塔里木盆地天山南缘区带古近系苏维依组沉积储层研究[J].沉积与特提斯地质,2014,(2):72-78,7.
