分形技术在川西坳陷储层裂缝预测中的应用

川西坳陷是四川盆地油气勘探的重点，而须家河组二段又是该区域重要的储层。该储层具有非均质性强、致密化程度高的特点，裂缝发育情况对油气勘探具有决定性作用。通过对分形技术的原理、方法的介绍，并利用该方法对须二段储层的裂缝进行预测。结果表明，油气藏的存在与否与裂缝发育和盖层发育两个因素直接相关。研究区内须二段储层大部分属于裂缝发育区，对油气勘探很有利。

The Application of Fractal Theory to the Prediction of Reservoir Fracture in the West Sichuan Depression

The focus point of oil and gas exploration in the Sichuan basin centers on the west Sichuan depression. The second Member of the Xujiahe Formation is the most important reservoir in this area which is characterized by strong anisotropism, developmental fracture and compaction. This paper applies fractal theory to the prediction of fissure in the reservoir of the Member 2 of the Xujiahe Formation. The results indicate that the presence of hydrocarbon accumulation is closely related to development of fissure and caprock.