应用流动能力指数评价砂砾岩储层有效性

Effectiveness Evaluation of Glutenite Reservoir with Flowability Index

有效性是储层评价的重要内容,是岩性、物性、储层厚度及孔隙结构等诸多因素的综合反映。对于砂砾岩储层,由于其碎屑颗粒变化范围较大,非均质性较强,给储层有效性评价带来了较大的困难,直接影响了储量评价的客观性。在流动孔隙度理论分析的基础上,通过不同探测深度范围内流动孔隙度特征的对比分析,提出了一种利用流动能力指数评价储层有效性的新方法,将该方法与孔隙度谱分析程序联合应用于储层有效性评价中,建立了研究区砂砾岩储层分类标准,为后续开发生产提供了重要的决策依据。

Effectiveness is the important content of reservoir evaluation.It is the comprehensive reflection of lithology,physical property,reservoir thickness and pore structure and other factors.Because of larger changes of the clastic particles and strong heterogeneity,It brought great difficulties in effectiveness evaluation of glutenite reservoir,and directly affect the objectivity of the reserves evaluation.Based on it,a new method of evaluating the reservoir effectiveness with flow capacity index is given by comparing the flow porosity characteristics of different investigation ranges.Then the paper applies it to evaluate the reservoir effectiveness with the porosity spectrum analysis program to build the classification standard of glutenite reservoir,and it provides important decision basis for oil production.