| 摘要 |
<p>A tubing hanger alignment system for a subsea well, periodically subjected to treatment by removing the well tubing and inserting treating tools therein, wherein a tubing guidance system cooperating with the wellhead for engaging a downwardly moving tubing hanger running system thereby to rotate said tubing hanger sufficiently to position the carried tubing at a predetermined relationship with the wellhead, thereby providing access into the tubing hanger for sealing elements of an over-positioned subsea tree co-operative with the wellhead.</p> |
