| 摘要 |
<p>A well tool (30) having an anchor device (50), straddle packers (102, 104) above and below a port (130) and an internal valve (52, 100, 106) operated by longitudinal motion in an inflatable packer. The anchor is armed by a hydraulic operated plug (85) and set upon downward motion in a locating profile groove (59) in a well bore. The tool when attached to a string of tubing (24) can be filled with cement slurry and downward motion used to anchor the tool in a profile groove in an inflatable packer (19 - 21); to set the straddle packers above and below an access port (203) on the inflatable packer; and then to open a valve to admit cement slurry to the inflatable packer. After filling the inflatable packer, an upward motion is used to close the valve, unset the straddle packers and anchor to move to another location where the operation can be repeated.</p> |
