screw pump
These nontraditional grades of crude oil are ideally suited for pumping with a Screw pump.
Depending on the actual application, either twin screw or three screw pumps are used in crude oil pipeline services. Three screw pumps are typically found boosting pressure from laterals to the main pipeline, while twin screw pumps are predominantly utilized in the main pipeline boosting stations. The primary advantages of screw pumps include the ability to handle a wide range of viscosities; centrifugals can vapor lock while pumping diluent blended crude oils and become extremely inefficient when pumping crude oils heavier than 250 cSt. Screw pumps have extremely low pulsation, eliminating the need for pulsation dampeners or complicated pipeline support systems required by reciprocating pumps.
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2012-06-25
