发明名称 |
CONTROLLER FOR DOWNHOLE TOOL |
摘要 |
A controller for operating a downhole tool includes a tubular body; a seat disposed in the body for receiving first and second pump-down plugs, at least a portion of one of the seat and the plugs being radially displaceable to pass through or allow passage of the other at a first threshold pressure differential; a catcher located below the seat for receiving the plugs after passing through the seat; a toggle linked to the seat to alternate between a locked position and an unlocked position in response to seating of the plugs; and a control mandrel for engaging a piston of the downhole tool and linked to the toggle: to be longitudinally movable between a first position and a second position when the toggle is unlocked, and to be prevented from movement from the first position to the second position when the toggle is locked. |
申请公布号 |
WO2014151704(A2) |
申请公布日期 |
2014.09.25 |
申请号 |
WO2014US26280 |
申请日期 |
2014.03.13 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
XU, WEI JAKE;ODELL, II, ALBERT C. |
分类号 |
E21B10/32 |
主分类号 |
E21B10/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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