| 摘要 |
A wear bushing for a casing hanger mounts to the bore of a casing hanger before the casing hanger is lowered into the well. The running tool for running the casing connects to the wear bushing. The wear bushing has a setting ring that connects to the seal for the casing hanger. The running tool has a setting sleeve that connects to the setting ring. The running tool will release from the wear bushing and the setting ring after the casing has been cemented and the seal set.
|
