GIS辅助含油气盆地储层综合评价——以松辽盆地北部徐家围子断陷为例

Comprehensive Reservoir Evaluation in Oil-bearing Basin with GIS Assistance——By Taking Xujiaweizi Fault Depression in the North of Songliao Basin for Example

运用地理信息系统(GIS)的栅格数据叠加分析方法,在GIS软件平台支持下开展GIS辅助储层综合评价方法研究,构建了GIS辅助储层综合评价的算法流程,提出了GIS辅助储层综合评价的从单因素评价到多因素综合的渐进分析方法。以松辽盆地北部徐家围子断陷为例,利用该方法,开展了该断陷登娄库组四段储层的GIS辅助综合评价,验证了该方法的有效性和可行性。综合评价结果显示,研究区登四段最有利储层(Ⅰ类)主要发育于升平西、昌德东、涝州东等地区,较有利储层(Ⅱ类)发育于Ⅰ类储层外围的昌德-升平-杏山及涝州等地区及研究区南部的三站外围及丰乐西等地区。

The overlying analytical method of GIS raster data is used to establish an algorithm procedure for comprehensive reservoir evaluation with GIS assistance by using GIS assisting comprehensive reservoir evaluation supported by GIS software. It is proposed that GIS assisting evaluation is carried out from single factor to multi-factors. By taking Xujiaweizi fault depression in Songliao Basin for example, reservoirs in the 4th member of Denglouku Formation in the fault depression are evaluated with GIS by using the method. The method is proven feasible. The result shows that the beneficial reservoirs (Type I) in the area are mainly developed from the west of Shenping Area, the east of Changde Area and east of Laozhou Area, the more favorable reservoirs (type II) are developed from Changde-Shenping-Xingshan and Laozhou Areas and Sanzhan periphery and West Fengle Area.