| 摘要 |
A connector for connecting the lower tubular member of a tie-back to the upper tubular member of a subsea wellhead is disclosed as having a first sleeve carried about the upper member for axial reciprocation with respect thereto and extension over the lower member, and a second sleeve also carried by the upper tubular member for axial reciprocation thereto within the first sleeve. Each of the tubular members has locking grooves formed about its ends, and a normally expanded lock ring has about its ends to engage the grooves, as well as outer cam surfaces carried within inner cam surfaces on the inner sides of the sleeves for radial movement between a normally expanded unlocking position and a contracted locking position, as the sleeves are axially reciprocated in opposite directions with respect response to one another. A fluid operator is formed between the upper portions of the sleeves for moving them in opposite axial directions.
|
