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2 各组实验回注2种类型水样的悬浮物粒径平均值、中值统计
Table 2 The average and median particle sizes of the two types of water samples were re-injected in each group of experiments
处理工艺实验组水样类型粒径平均值/μm粒径中值/μm粒径最大值/μm
沉降除油第1组处理前19.0919.9452.34
处理后14.5015.0147.94
沉降除油+二级过滤第2组处理前13.1111.6835.78
处理后3.373.059.72
沉降除油+二级过滤第3组处理前7.325.9930.00
处理后3.333.028.94
破乳+油水分离+沉降除油+气浮+旋流分离+过滤第4组处理前12.7510.7843.66
处理后3.022.438.05
沉降除油第5组处理前15.5212.1652.62
处理后11.178.1543.66