油气地质与采收率2017，Vol.24Issue(4)：49-54,6.
塔中西北部良里塔格组碳酸盐岩储层类型及主控因素
Types and main controlling factors of carbonate reservoir in the Lianglitage Formation, the northwest of central Tarim Basin
摘要
Abstract
There are many discoveries in Ordovician oil and gas development in the northwest of central Tarim Basin,but there are few studies on types and main controlling factors of Lianglitage reservoirs,which has seriously restricted the oil and gas exploration and development in recent years.Based on core observations,rock section and casting section analysis and logging data and combing with experimental data on petrology and geochemistry of the Lianglitage Formation,it is concluded that the reservoir space is dominated by cavities and fractures in this area.The reservoirs are mainly of fracture-cavity type,fracture type and cavity type.The carbonate reservoirs in the Lianglitage Formation are controlled by many factors.The sedimentary microfacies provide the material foundation for the development of the reservoir,among which high energy grain beach at the platform margin is the most advantageous place for hydrocarbon entrapment.The karstification and tectonic rupture of reef beach bodies play an important role in controlling the size and distribution of high quality reservoirs.Integrated analyses indicate that platform margin in A-Dong area,where the degree of exploration is low,and its inner fault zones are favorable for development of cavity-fracture in the Lianglitage Formation.关键词
奥陶系/良里塔格组/碳酸盐岩/储层类型/主控因素/塔中西北部Key words
Ordovician/Lianglitage Formation/carbonate rock/reservoir type/main controlling factors/northwest of central Tarim Basin分类
能源科技引用本文复制引用
尚凯,曹自成,云露,吕海涛,沙旭光..塔中西北部良里塔格组碳酸盐岩储层类型及主控因素[J].油气地质与采收率,2017,24(4):49-54,6.基金项目
中国石化科研项目“下古生界碳酸盐岩油气富集规律与区带评价”(P16091). （P16091）
