准噶尔盆地西北缘石炭系火山岩岩性岩相特征与裂缝分布关系

新疆准噶尔盆地西北缘大范围发育石炭系火山岩-沉积岩序列的交互式地层，剖面垂向层序由若干个火山喷发岩-沉积岩序列所组成。以克拉玛依油田六、七、九区石炭系火山岩-沉积岩为例，利用地震、钻井、岩心、电性实测资料，尝试性地提出了准噶尔盆地西北缘石炭系内幕地层划分方案，并从火山岩-沉积岩期次的划分、各期次火山岩-沉积岩岩相分布模式的建立、不同岩性裂缝发育程度定量描述的角度出发，详细论述各期次岩性、岩相、裂缝与油气藏形成的相关性，明确了六、七、九区石炭系裂缝发育区，为该区后续的勘探、开发部署提供科学依据。

Relationship between the Characteristic of Lithology-lithofacies and Distribution of Fractures in Carboniferous Reservoirs, Northwest Margin of Junggar Basin

The interactive formation of Carboniferous volcanic rock and sedimentary rock set is widely developed in the northwest margin of Junggar Basin.The profile vertical sequence is made up of several sets of volcanic rocks and sedimentary rocks.This paper takes Carboniferous volcanic rocks and sedimentary rocks of the zones Six,Seven,Nine of Karamay oilfield for examples.We use the actual data of seismic,borehole,drilling core,electrical property,and try to put forward a method of stratigraphic division in Carboniferous formation,northwest margin of Junggar Basin.We first divide the stages of volcanic rock and sedimentary rock,build the distribution mode of the multiple stages of volcanic rock and sedimentary rock lithofacies,quantitatively describe the developed extent of different lithological fractures,and discuss the relationship among lithology,lithofacies,fractures and the forming of reservoir.The Carboniferous fracture developed range of the zones Six,Seven,Nine are determined and this can provide a scientific basis for the successive exploration and development in this area.