首页> 外国专利> QUANTITATIVE CALCULATION METHOD FOR HYDROCARBON SATURATION OF FRACTURED RESERVOIR

QUANTITATIVE CALCULATION METHOD FOR HYDROCARBON SATURATION OF FRACTURED RESERVOIR

机译:裂缝性油气成藏定量计算方法

摘要

A quantitative calculation method for oil(gas) saturation of fractured reservoir during petroleum exploitation is provided. The method comprises: obtaining the fracture porosity and calculating resistivity index at different depth of fractured reservoir with known full diameter core data and imaging logging data; establishing the percolation network model of matrix and fracture combination with known pore structure feature; calibrating the numerical simulation results obtained from percolation network model based on the data of core experiment and sealed coring analysis results, then obtaining the relationship between the resistivity index (I) and water saturation (Sw) at different fracture porosity; calculating the oil (gas) saturation of fractured reservoir through selecting an interpolation function. The oil(gas) saturation calculated with said method is 0.67, however 0.49 with common method in some fractured reservoir. The accuracy is improved by more than 0.18 in the studied fractured reservoir.
机译:提供了一种裂缝性油藏开采过程中油气饱和度的定量计算方法。该方法包括:利用已知的全直径岩心数据和成像测井数据,获得裂缝孔隙度,并在裂缝储层的不同深度计算电阻率指数;以及建立具有已知孔隙结构特征的基质与裂缝组合的渗流网络模型;根据岩心实验数据和密封取心分析结果对渗流网络模型得到的数值模拟结果进行标定,得到不同裂缝孔隙率下电阻率指数(I)与含水饱和度(Sw)的关系;通过选择插值函数来计算裂缝性油藏的油(气)饱和度。用该方法计算出的油(气)饱和度是0.67,而在某些裂缝性油藏中用常规方法是0.49。在研究的裂缝性油藏中,精度提高了0.18以上。

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号