| 摘要 |
<p>A downhole actuating apparatus (10) comprising a body (12), an object (14) provided on the body, and a sealing arrangement (30) provided on the body and axially spaced from the object. In use, the apparatus (10) is deployed downhole until the object (14) engages an obstacle (44). The sealing arrangement is configured to provide protection for the object during deployment of the apparatus and/or while the apparatus is engaged with the obstacle.</p> |
