首页>
外国专利>
Sub-surface release plug assembly with primary and secondary release mechanisms
Sub-surface release plug assembly with primary and secondary release mechanisms
展开▼
机译:具有主释放机构和次释放机构的地下释放塞组件
展开▼
页面导航
摘要
著录项
相似文献
摘要
A sub-surface release plug assembly for use in cementing an outer casing annulus around a well casing comprising a top plug releasably connected to a drill string by a collet mechanism and a bottom plug releasably attached to the top plug by a sleeve assembly extending through the top plug. The assembly further comprises primary and secondary release means for releasing said plugs thereby ensuring that the plugs are released in said casing during cementing operations.
展开▼