Research on soft sensing method of pumping unit system efficiency based on KPCA and SVR

Beam pumping unit is the uppermost artificial lifting equipment in the oilfield exploitation. In order to reduce its energy consumption and to cut down the oil production costs, many manufacturers have developed a lot of types of the energy-saving pumping unit. With different energy-saving principle, the energy-saving effects are quite different. It is becoming very important how to justly and reasonably evaluate the energy-saving effect of a pumping unit. Hydrodynamic simulated experiment well is used to compare the energy-saving effects of four types of pumping units. In the process of the experiments, water is taken as the medium, offset pumping unit is as the reference body, system efficiency and electricity-saving ratio is as the evaluating goal and all the experiments are executed at the same condition. The relative curves of the lifting height with the system efficiency and the electricity-saving ratio are drawn for the four types of the pumping units. Testing results indicate that the double horse-head pumping unit has the best effect, and then the compound-balanced pumping unit with downward beam balance weight. According to the comparative results, it is put forward the pumping unit selecting suggestions.

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Prediction of Pumping Unit Well System Efficiency Based on Chaotic Time Series Method

Proceedings of the 2018 3rd International Conference on Communications, Information Management and Network Security (CIMNS 2018) ◽

10.2991/cimns-18.2018.32 ◽

2018 ◽

Author(s):

Chaodong Tan ◽

Zhenhua Peng ◽

Gang Feng ◽

Ruogu Yang ◽

Lijie Gao

Keyword(s):

Time Series ◽

Chaotic Time Series ◽

System Efficiency ◽

Series Method ◽

Time Series Method ◽

Pumping Unit

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The Energy Saving Pumping Unit System Design and Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.536-537.1384 ◽

2014 ◽

Vol 536-537 ◽

pp. 1384-1389

Author(s):

Hong Jun Meng ◽

Zhan Lin Wang

Keyword(s):

Energy Saving ◽

Simulation Analysis ◽

Oil Field ◽

Uniform Motion ◽

Starting Current ◽

Unit System ◽

Acceleration And Deceleration ◽

Energy Store ◽

Pumping Unit ◽

Saving Effect

With the development of oil field production demand today, pumping unit is developing towards the direction of energy saving, intelligent. According to the present status of the oilfield, this paper designed a kind of intelligent energy saving pumping unit system, the system acceleration and deceleration process is very short, most of their working time in uniform motion in a stroke, and the beam pumping unit has been alternating deceleration process all the time compared with good energy saving effect. Energy store system is designed, the system not only reduces energy consumption, and make the motors can be started with initial velocity, shorten the motor start-up time, the motor starting current is stable running current of 4 to 7 times, so that reduces the starting current impact. To test this idea, modeling of motor, and the simulation analysis, the results confirmed the idea very well. Finally, in the principle of the pumping unit system prototype experiments, the experimental results show that the pumping unit system has significant energy-saving effect and the intelligent characteristics.

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