| 摘要 |
<p>A coiled tubing conveyed sampling apparatus (40), comprising: a coiled tubing string (30) having a tubing bore; a housing (42) having an upper end connected to said coiled tubing string (30) and having an actuating chamber (80) and a sampling chamber (238) defined therein, said actuating chamber (80) being communicated with said tubing bore; an actuator piston (92,94,120,114) disposed in said housing (42) and communicated with said actuating chamber (80), said actuator piston being movable from a first position to a second position relative to said housing (42) in response to an increase in fluid pressure communicated to said actuating chamber (80) through said tubing bore of said coiled tubing string (30); and a sampling valve assembly (216) having an initial position wherein said sampling chamber (238) is empty, an intermediate position wherein said sample chamber (238) is free to fill with a well fluid sample, and a final position wherein said well fluid sample is trapped in said sample chamber (238), said sampling valve assembly (216) being operably associated with said actuator piston so that in response to said actuator piston moving from its said first position to its said second position said sampling valve assembly (216) is released from its said initial position. <IMAGE> <IMAGE> <IMAGE></p> |
