Ultrasonic apparatus and method for increasing the flow rate of
Ultrasonic liquid flow control apparatus and method
Use of a water soluble drag reducer in a water/oil/gas system
Use of alkoxylated alkanolamide as friction-reducing agent
Use of alkoxylated alkanolamide together with alkoxylated alcoho
Use of radiation-induced polymers as friction reducing agents
Use of ultrasonic energy in the transfer of waxy crude oil