| 摘要 |
A well tool (12) includes a mandrel (86), a collar (64), a sleeve (76) and a piston body (88). The collar (64) is disposed above and the sleeve (76) is disposed beneath a seal element (70), a conical element (72) and slips (74). A central bore (92) extends into the mandrel (86), and a flow port (96) extend s from the central bore (92) to an exterior of the mandrel (86) which is adjacent to the sleeve (76). The piston body (88) extends exteriorly outward of the mandrel (86) and beneath the flow port (96). The sleeve (76) extends exteriorly around and slidably engages the mandrel (86)and the piston body (88). A setting pressure applied to the central bore (92) and passed through the flow port (96) moves the sleeve (76) upwards on the mandrel (86) to pres s the slips (74), the conical element (72) and the seal element (70) between t he sleeve (76) and the collar (64) to set the well tool (12).
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