| 摘要 |
A hydraulic release tubing seal divider for connecting lower and upper tubing strings together in a wellbore, including an inner housing assembly connected with one of the tubing string and middle and outer housing assemblies connected with the other of the tubing strings, including hydraulically operable locking structure carried by the middle and outer housing assemblies for locking the tubing strings together while the strings are run into a well, and for hydraulically releasing the middle and outer housing assemblies from the inner housing assembly to permit relative telescopic movement in the well between the upper and lower tubing strings at the tubing seal divider.
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