巴喀油气田八道湾组气藏储集层裂缝定量分析

Quantitative Analysis of Fractures in Gas Reservoir of Badaowan Formation in Baka Oilfield

根据分形学原理,运用常规测井资料,通过变尺度(R/S)分析计算,对吐哈盆地巴喀油气田下侏罗统八道湾组储集层裂缝发育程度进行了定量分析,并将其结果与该地区同层段裂缝在常规测井曲线上的响应特征及试气等资料上的裂缝识别结论进行了对比验证,有一定吻合度,表明运用常规测井资料的R/S分析进行裂缝发育段识别,在巴喀油田是一个可以尝试的简便新方法。

According to fractal principle,using conventional logging data,the development extent of fractures in the Badaowan reservoir of Lower Jurassic in Baka area is quantitatively analyzed by variable scale analysis(R/S).The result is applied for comparison with the response and identification of fractures of logs and gas test data at the same layers in this area,and the relative accordance shows that the R/S analysis can be used for identification of fracture developed intervals,and is a feasible new method for quantitative description of the fractures in the Badaowan formation in Baka oilfield.