| 摘要 |
A docking receiver ( 48 ) for a subsurface well ( 12 ) having a fluid inlet structure ( 29 ), a riser pipe ( 30 ) and a docking apparatus ( 50 ) includes an upper section ( 372 A) and a lower section ( 374 A). The upper section ( 372 A) is secured to the riser pipe ( 30 ). The lower section ( 374 A) is secured to the fluid inlet structure ( 29 ). The lower section ( 374 A) receives the docking apparatus ( 50 ) into an engaged position wherein fluid communication between a first zone ( 26 ) and a second zone ( 28 ) of the well ( 12 ) is inhibited. The lower section ( 374 A) includes a contact surface ( 376 A) and a distal region ( 377 A). The contact surface ( 376 A) contacts the docking apparatus ( 50 ) when the docking apparatus ( 50 ) is in the engaged position. The distal region ( 377 A) is positioned more distally from a surface region ( 32 ) of the well ( 12 ) than the contact surface. The lower section ( 374 A) can have a lower inner diameter ( 380 UD, 380 LD) that varies within the distal region ( 377 A). When the docking apparatus ( 50 ) is not in the engaged position with the docking receiver ( 48 ), the first zone ( 26 ) is in fluid communication with the second zone ( 28 ).
|
