摘要
高渗砂岩储集层孔喉尺寸分布范围广、连通性好、产能贡献值大,这些特点在实施作业中提高了暂堵难度,大漏失产生后造成敏感储集层污染。本文从暂堵剂选择、入井液性能方面进行了研究,开发出一种易于返排、适用大漏失井暂堵的修井液体系,有效解决了大漏失井修井过程储层保护问题。
The high permeability sandstone reservoir has a wide range of pore size distribution, good connectivity and high capacity, which can increase the difficulty of temporary plugging operation, and the operation leakage is not easy to control. In this paper, the temporary plugging agent selecting and working fluid performance were studied. Temporary plugging working well fluid system that is an easy flowback, suitable for large leakage well was developmed, the problem of reservoir protection in working process of large leakage well was effectively solved.
出处
《精细与专用化学品》
CAS
2015年第9期31-35,共5页
Fine and Specialty Chemicals
关键词
大漏失井
暂堵
高渗砂岩储集层
储集层损害
修井液
渗透率恢复值
large leakage well
temporary plugging
high permeability sandstone reservoir
reservoir damage
working fluid
permeability recovery value
