基于测井资料计算孔渗比的储层评价方法

受早期成藏条件和后期成岩作用的综合影响,使得储层孔隙结构复杂化,导致在勘探过程中经常遇到在试油和试采过程中实际储层产量与产能预测结果不符的情况.实验研究表明,孔隙结构(渗透率与孔隙度的比值)与孔喉半径有良好的相关性.尝试应用测井资料计算得到的孔隙度、渗透率对储层进行正确产能预测,在华北油田取得了较好的地质应用效果.

The Reservoir Evaluation Method for Calculating The Ratio of Porosity to Permeability with Log Data

Because of influence of the earlier genesis conditions of reservoirs and the later diagenism, reservoir pore structures have become complex, so the true reservoir productivity is not in agreement with that forecasted in the process of oil testing and recovery testing. The experimental data show that the pore structures(the ratio between porosity and permeability)are consistent with the pore throat radius. Productivity forecast with porosity and permeability calculated from log data is successfully used in Huabei Oilfield.