摘要
鄂尔多斯盆地苏里格地区盒8段储集层地质特征复杂,测井响应特征多变。开展储层孔隙结构的研究是正确认识储层地质特征的关键,也是测井储层评价中正确建立测井解释模型的前提。基于大量的岩心分析以及试气试产数据,得出该地区主要产气层位盒8段的储层孔隙度和渗透率区间变化范围都很大,说明储层孔隙结构复杂,并可能受裂缝的影响。研究区不同区域沉积体系以及物源的方向呈多样性和差异性,在本区没有建立统一的测井解释模型,采取分区分块的思路分别建立各自的测井解释模型。经验证,用这种方法建立的模型在研究区应用效果良好。
The He8 section in Sulige region of Ordos basin is of complicated characteristics in geology and log response. The Studies on pore structure, are the key to understand the former correctly, which are also the prerequisite for establishing log interpretation model properly in reservoir evaluation. Therefore, based on the mass data of core analysis, testing and gas production, we can conclude that the variation ranges of the porosity and permeability in He8 section of the major pay zones are all large, explaining that the reservoir void structure is complicated which may be affected by the fracture. Considering the di- versities and differences of depositional system and source direction in different parts of the research area, log interpretation models are established respectively under the thought of dividing it into blocks, other than a united log interpretation model in this research area. As experience shows, models established in this way obtain good application effects in the research area.
出处
《地下水》
2013年第2期53-55,共3页
Ground water
基金
"十一五"国家科技支撑计划基金项目资助(2007BAB1701)
研究生科技创新基金项目(YCA120319)
关键词
苏里格
盒8
物性特征
测井解释模型
Sulige region
He8 section
Physical properties and Well log interpretation model
