Liner Hanger Systems Installation FailuresI am working on liner hanger. The company I work in experienced many failures when trying to install them (5 failures on the last 5 jobs). The failures concerns a sequence in the procedure:
- The packer which could not be set
- the drill pipe dart which didn't land on the wiper plug
- the wiper plug which didn't shear, so didn't bump on the landing collar.
I would like to have advice from others concerning root causes of such kind of incidents.
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