基于核磁共振技术评价气田采出水对地层的伤害机理

杜康, 刘永国, 郭萍, 陈志刚, 慕进升, 黄凯, 王琛

Evaluation of damage mechanism of gas field produced water based on nuclear magnetic resonance technology

Kang DU, Yongguo LIU, Ping GUO, Zhigang CHEN, Jinsheng MU, Kai HUANG, Chen WANG

表6 第1组实验孔喉堵塞伤害程度

Table 6 Group 1 experimented with the degree of injury to hole throat blockage

岩心编号 孔喉类型 孔喉分布范围/ms 堵塞程度/% 1-1 较小孔喉 0.01~9.32 41.62 较大孔喉 9.32~705.48 25.37 整体孔喉 0.01~705.48 35.52 1-2 较小孔喉 0.01~9.32 24.15 较大孔喉 9.32~705.48 24.23 整体孔喉 0.01~705.48 24.18