| 摘要 |
A disconnect apparatus (100) includes a lower housing (102), an upper housing (104) having a collet mechanism (106) configured to couple the upper housing to the lower housing, a retainer sleeve (124) disposed within the upper housing and/or the lower housing, the retainer sleeve (126) configured to move longitudinally within the lower housing and/or the upper housing between a first position and a second position in response to a pressure differential applied across the retainer sleeve; wherein in the first position at least a portion of the retainer sleeve is disposed radially inward of the collet mechanism (106) and in the second position the retainer sleeve (124) is disposed axially above or below the collet mechanism (106), and a biasing mechanism (126) coupled to an end of the retainer sleeve (124). A method of disconnecting a tool from a tubular string includes applying a differential pressure across a sleeve (124) and disengaging a collet mechanism (106) with a housing. |
