| 摘要 |
<p>A grease tube (44) is disclosed for coupling to a wireline entry tool for example, to allow the insertion of a wireline into a borehole. The grease tube (44) includes two longitudinal halves (17, 18) that are releasably secured together by interengageable lugs (45) and slots (47) to define a passage (44c). <IMAGE></p> |
