Related Experiment Video
Updated: Jan 10, 2026

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
Simulation of the operating characteristics of an all-metal conical screw pump
Tong Wu1, Junliang Li2, Qi Xia1
1School Of Petroleum Engineering, Yangtze University, 430100, Wuhan, China.
Abstract:
The all-metal conical screw pump can achieve efficient lifting of fluids with different viscosities by adjusting the stator-rotor clearance fit. To investigate the operational characteristics of the all-metal conical screw pump under various fluid viscosities, this study builds upon outdoor experiments and employs numerical simulation for further analysis. The effects of stator-rotor clearance fit and rotor speed on pump displacement, energy efficiency, torque, and volumetric efficiency under different fluid viscosities are obtained. Reasonable operating parameters are recommended for heavy-oil reservoirs under different lifting conditions. The results indicate that the all-metal conical screw pump overcomes the limitations of traditional elastomer pumps and equal-diameter metal pumps, enabling efficient lifting across a wide viscosity range. Fluids of different viscosities correspond to different operating conditions: for high-viscosity fluids, the pump's energy efficiency increases first and then decreases with larger clearances, while it decreases with increasing rotor speed. Under thermal recovery of heavy oil, the pump should operate with small clearance and high speed, whereas under cold production, large clearance and low speed are preferable.
More Related Videos
Related Concept Videos
Typical Model Studies
Pumped Concrete
For direct-acting pumps, the concrete enters the pump via the inlet valve under the action of gravity and suction created by the movement of the piston. This concrete is then forced into the pipeline and out through the outlet valve by the forward movement...
Mechanical Efficiency of Real Machines
However, in reality, no machine can be truly ideal, and all of them experience some...
Screw: Problem Solving
To evaluate the...
Design Example: Creating a Hydraulic Model of a Dam Spillway
General Characteristics of Pipe Flow I
The classification of fluid...

