摘要
详细介绍了PVA冲洗液特点,护壁机理,对钻进技术效果进行了分析评价,结果表明PVA无固相冲洗液结合套管浅部护壁,对于复杂地层钻进其护壁、堵漏是一种既经济又有效的处理方法。
The characteristics of PVA drilling fluid, protection mechanism of hole wall are introduced in detail, analyzing and appraising drilling technical result. The result shows that combining PVA drilling fluid of nonsolid phase with casing off is an economic and effective handling method for the well wall of protection and stopping circulation loss in the complex strata.
出处
《吉林地质》
2007年第1期80-82,共3页
Jilin Geology
关键词
PVA无固相冲洗液
护壁
堵漏
PVA drilling fluid of non-solid phase
protection of well wall
stopping circulation loss
