Method Z2 - intermediatecasing end face with top view door.
Z 2制法——中间机壳端面带有上端检视门。
2
The configuration and principle of anti rotary plug and necessary float collars and their applications in intermediatecasing cementing are introduced.
介绍了防转胶塞及配套浮箍的结构、原理和在技术套管固井中的应用情况。
3
According to the basic conditions of Tahe oil field, the paper discusses the reasons of using single stage double plugging cementing methods in intermediatecasing.