The Praxis ESP POD System is designed for Artificial Lift applications allowing specialist ESP completions to be realized. The Praxis POD System has been specifically designed so that there is no requirement to rotate either the ESP or shroud independently during assembly, causing possible damage.
Instead there is a seal stack within the upper mandrel sub of the POD assembly, which creates a pressure barrier between the shroud ID, and production annulus when mated with the lower mandrel sub at the top of the shroud assembly. The cable penetrator, control bypass lines etc. are made up to the upper mandrel sub before being lowered into the lower mandrel Sub, which is fixed to the top of the shroud. As the upper mandrel sub is lowered into the lower mandrel sub the seal stack engages with the seal bore inside the housing and the full assembly shoulders out. The upper and lower mandrels are then secured in position and providing the same tensile load as the shroud tubulars.
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