摘要
储层非均质性是储层评价的重要指标,通过对区内近20口井300多个样品统计分析表明,三台油气田中上侏罗统储层存在较强的非均质性.不同层系存在差异,齐古组储层非均质性较头屯河组要弱.近源沉积、储层稳定性差、岩石成分复杂、矿物成熟度低、分选差、岩石颗粒大小混杂、填隙物含量高、类型多等诸多因素是形成本区储层强非均质性的重要原因.
Reservoir anisotropy is an important indicator of reservoir evaluation which plays an essential role in the oilfield exploration and development.It shows that there be a strong anisotropy of the middle and upper Jurassic reservoir at Santai oilfield both the macro or micro through the statistical analysis to more than 300 samples in nearly 20 wells in the area.And there is anisotropy between the different strata,the heterogeneity of the J3q is more than that of the J2t.The main reasons result to the strong reservior anisotropy in the area conclude proximal deposition,poor reservoir stability,complex compositon of rock,low minerals maturity,poor sorting,mixed rock particle size,intensive matrix,many types of rock and so on.
出处
《新疆地质》
CAS
CSCD
北大核心
2010年第3期294-297,共4页
Xinjiang Geology
关键词
三台油气田
中上侏罗统
储层
非均质性
Santai oilfield
Middle and upper of Jurassic
Reservoir
Anisotropy
