摘要
为了连续获取储层毛管压力曲线评价储层孔隙结构,针对储层毛管压力资料非常有限这一问题,以169块不同类型的岩芯压汞资料分析为基础,提出了利用常规孔隙度、渗透率等参数构造毛管压力曲线的新方法,并建立了毛管压力曲线的构造模型。通过与实际岩芯压汞毛管压力曲线的对比,验证了构造模型的准确性,并提出优选综合物性指数模型来连续构造毛管压力曲线。将该毛管压力曲线应用于实际储层评价中以求取平均毛管半径、最大毛管半径和储层含水饱和度等地层参数以及评价储层的孔隙结构,与岩芯分析结果以及油田现场利用测井模型解释获取结果对比表明,新模型计算的结果是真实可靠的。
In order to continuously gain reservoir capillary pressure curve to evaluate reservoir pore structure,aiming at the proplem that the reservoir capillary pressure data are very finite,a new method constructing capillary pressure curve by using conventional porosity and permeability is put forward and the constructing model of capillary presusre curve is set up based on 169 cores mercury-injection data analysis.The accuracy of the,model is verified by means of the correlation with practical core mercury-injection capillary pressure curve,it is proposed that optimal comprehensive physical property is used to continuously construct capillary pressure curve.The curve is applied in practical reservoir evaluation to obtain mean capillary radius,maximun capillary radius and reservoir water saturation,as well as to evaluate the pore structure of the reservoir,the correlation of core analysis and well logging model interpretation indicates that the result calculated with the new model is reliable.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第6期126-130,共5页
Journal of Southwest Petroleum University(Science & Technology Edition)
关键词
毛管压力曲线
孔隙度
渗透率
应用
孔隙结构
含水饱和度
capillary pressure curve
porosity
permeability
application
pore structure
water saturation
