Patent ID: 9550945
Date: 2017-01-24
CPC Classifications: C10G

Claim:
1. A system for removing BS&W from crude oil at the local production or storage site comprising: a low shear pump functionally connected via a first pipe to a heat exchanger for introducing incoming crude oil containing BS&W into the heat exchanger where the crude oil is heated to form preheated crude oil, the heat exchanger functionally connected to an oil-water separator via a second pipe for transferring the preheated crude oil from the heat exchanger to the oil-water separator where the preheated crude oil is further heated and where BS&W is separated and removed from the crude oil to form heated dehydrated crude oil, the oil-water separator functionally connected to the heat exchanger via a third pipe for transferring the heated dehydrated crude oil to the heat exchanger where the heated dehydrated crude oil is cooled before being stored, and a firetube provided internally in the oil-water separator that further heats preheated incoming crude oil.