The paper presents successful field tests designed to decrease electrical-submersible-pump cooling rates by inducing controlled deadheads rather than shutting down the pumps.
The authors of this paper develop a model that can predict well-risk level and provide a method to convert associated failure risk of each element in the well envelope into a tangible value.
The paper presents results of single-phase and multiphase electrical-submersible-pump tests as well as operation data, lessons learned, and failure examples gathered over 10 years of operation in a highly viscous offshore oilfield.

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