scholarly journals Energy-saving mechanism research on beam-pumping unit driven by hydraulics

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249244
Author(s):  
Hukun Yang ◽  
Jianping Wang ◽  
Hui Liu
Keyword(s):  
Energy Saving ◽  
Simulation Analysis ◽  
Hydraulic Drive ◽  
Power Saving ◽  
High Energy ◽  
Maximum Speed ◽  
Engineering Practice ◽  
Maximum Acceleration ◽  
Pumping Unit ◽  
Pumping Units

Aiming to solve the problems of long transmission chain, large movement inertia of components and high energy consumption of pumping units, this proposes a new pumping unit with direct balance and hydraulic drive. Through mathematical modeling and simulation analysis to compare the suspension dynamic characteristics and balance characteristics of the hydraulically driven pumping unit with the conventional one. It turns out that the suspension maximum speed drop 21.14%, the maximum acceleration drops 28.88% and the root mean square torque drops 92.9% on the suspension of the hydraulically driven pumping unit. The experimental results proves that the hydraulically driven pumping unit has significant energy saving efficiency, and achieves more than 30.9% of active power saving rate. Theoretical and practical research results show that hydraulically driven pumping unit is reliable and better energy saving, which provides a basis in theory and engineering practice in application.

Study of Energy-Saving Control in Oil Pumping Units Based on DTC Technology

2012 ◽  
Vol 433-440 ◽  
pp. 7119-7124
Author(s):  
Zhao Mei Xue
Keyword(s):  
Energy Saving ◽  
Direct Torque Control ◽  
High Energy ◽  
Economic Benefits ◽  
Control Device ◽  
Oil Field ◽  
Torque Control ◽  
Pumping Unit ◽  
Pumping Units ◽  
Energy Saving Control

The pumping unit is the main pumping equipment in the oil field. However, there widely exist such defects as low pumping efficiency, high energy consumption, much time and great efforts consumption in stroke adjustment etc. in the current pumping unit, resulting in serious waste of energy. Some energy-saving technologies in pumping units have been developed, but the effects are not quite good. Aiming at this situation, this paper introduces a new type of motor control theory - Direct Torque Control. By controlling the stator voltage, the technology achieves the direct control of the motor torque. Meanwhile, with the combination of the motor running condition of pumping units, study of energy-saving control based on DTC technology is carried out. It turns out that the energy-saving effect is significant according to the application and test results of the energy-saving control device in the oil field. Therefore, the control device can bring certain economic benefits and have the value of popularization and application.

Pumping Unit Suspension Point Direction Balance Theory Analysis Method and Effect Evaluation

2014 ◽  
Vol 635-637 ◽  
pp. 303-306
Author(s):  
Hu Kun Yang ◽  
Yu Lu ◽  
Xiang Ru Zhao ◽  
Jian Ping Wang
Keyword(s):  
Energy Saving ◽  
Simulation Analysis ◽  
Engineering Practice ◽  
Load Reduction ◽  
Analysis Model ◽  
Suspension Point ◽  
Balance Principle ◽  
Simulation Results ◽  
Pumping Unit ◽  
Saving Effect

In order to reduce the adverse effect of suspension point dynamic load on pumping unit system, according to the suspension point balance principle of conventional type pumping unit, the suspension point direction balance designing scheme is determined. Take CYJ10-3-37HB pumping unit as research object. Establish the virtual prototype simulation analysis model of conventional pumping unit by suspension point direction balance before and after the balance. Through the contrastive analysis of simulation results, the effect of load reduction and energy saving after the pumping unit by suspension point direction balance is determined. The simulation results show that the reduce rate of pumping unit maximum polished rod load is 29.4%, the reduce rate of RMS torque is 15.8%, the load reduction and energy saving effect of suspension point direction balance is obviously. It laid a theoretical basis for the suspension point direction balance device in engineering practice application.

Design and analysis for a new energy-saving hydraulic pumping unit

2017 ◽  
Vol 232 (12) ◽  
pp. 2119-2131 ◽  
Author(s):  
Zhenhe Li ◽  
Jinchun Song ◽  
Yanjun Huang ◽  
Yungong Li ◽  
Jianwen Chen
Keyword(s):  
Energy Saving ◽  
Structural Design ◽  
System Parameters ◽  
Load Sensing ◽  
Operating Rate ◽  
New Energy ◽  
Pumping Unit ◽  
Pumping Units ◽  
Double Wells ◽  
Working Efficiency

With the increasing concern over global energy crisis, energy saving in pumping units is becoming a significant subject. In terms of energy-saving and working efficiency, hydraulic pumping units outperform conventional pumping units. In this paper, a novel hydraulic pumping unit is proposed to overcome the existing drawbacks of conventional pumping units and present hydraulic pumping units. Firstly, this novel hydraulic pumping unit adopts a balanced mechanical structure, which means two oil wells are used in this system and the weight of their sucker rods can balance each other through the symmetrical arrangement. This kind of structural design not only saves the nominal power but also allows the system to continuously pump oil. Another feature of this hydraulic pumping unit is that it adopts the electro-hydraulic proportional load-sensing control technology, which makes the pressure and flow rate of the pump adapt to the requirement automatically in real time. The double wells of the system work alternatively under the normal condition and any one can work alone when the other needs maintenance, which improves the operating rate of pumping oil. After the main system parameters are calculated, conclusion can be drawn that both the nominal and operating power of this hydraulic pumping unit are relatively low. The model of the whole system is built based on mathematical dynamics and AMESim environment, and simulation results demonstrate that the proposed hydraulic pumping unit can achieve remarkable energy-saving performance.

Comparative Test Research on Different Type Energy-Saving Pumping Unit

2008 ◽  
Author(s):  
Zhao Guo ◽  
Gao Yu
Keyword(s):  
Energy Saving ◽  
Production Costs ◽  
System Efficiency ◽  
Saving Ratio ◽  
Pumping Unit ◽  
Comparative Results ◽  
Electricity Saving ◽  
Saving Effect ◽  
Pumping Units ◽  
Lifting Equipment

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.

scholarly journals INCREASING THE TECHNICAL LEVEL OF HYDRAULIC MANIPULATORS OF AUTOCOLLIMATIONAL

2020 ◽  
Vol 8 (1) ◽  
pp. 129-134
Author(s):  
P. Popikov ◽  
Irina Chetverikova ◽  
Aleksandr Chernykh
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Hydraulic Drive ◽  
High Energy ◽  
Technical Level ◽  
Maximum Pressure ◽  
Internal Diameter ◽  
Hydraulic Manipulators ◽  
Hydraulic Equipment ◽  
Hydraulic Accumulator

The main requirements for hydraulic equipment of forest transport machines of manipulator type are revealed. It is established that the main drawback of the used hydraulic drives of manipulators is their increased power and high energy consumption. The main ways of increasing the technical level of hydraulic manipulators of forest transport vehicles are considered. The constructive optimization and improvement of the hydraulic drive mechanism for lifting the boom and turning the column of the manipulator is justified. New designs with the use of hydro-mechanical dampers and energy-saving devices are proposed. As energy-saving devices, it is proposed to use a hydraulic accumulator. The main advantages of the design, which are to increase the reliability and expand the technological capabilities of hydraulic manipulators forest transport machines. The principles of influence on the hydraulic system that reduce the pressure in the piston group and reduce energy consumption are substantiated. The proposed energy-saving hydraulic drive reduces the maximum pressure during braking to 3 MPa. The recovery energy when the column is rotated is 25 % of the energy consumed. The diameter of the dampener's lockable cavities should be 48 mm with the internal diameter of the dampener 65 mm. Minimal changes in the design are achieved to increase the technical level of the hydraulic drive of manipulators of forest transport machines and its competitiveness among existing analogues.

scholarly journals Energy-saving Scheme of 5G Base Station Based on LSTM Neural Network

2021 ◽  
Vol 2083 (3) ◽  
pp. 032026
Author(s):  
Yuxuan Wang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Power Saving ◽  
Original Data ◽  
High Energy ◽  
Base Station ◽  
Base Stations ◽  
Idle State ◽  
Single Station ◽  
Saving Effect

Abstract As China’s new infrastructure,5G has received national and social attention. 5G promotes economic to grow rapidly. But, the high energy consumption caused by the massive deployment of 5G base stations cannot be ignored. The total annual power consumption is expected to reach 243 billion degrees when the 5G base station is fully built. In the tidal scene, some 5G base station in an idle state still power fully, which causes great power waste. The historical volume of base station business data is used to train LSTM model, and predict the future base station business. When the business is lower than the threshold, the base station will be closed to avoid unnecessary power waste. And the LSTM model prediction results fits the original data ideally. By implementing the power saving strategy, the energy consumption of the base station is reduced by 18.97 %. A single station can save 1174 degrees of electricity yearly. It can be seen that the energy saving effect is remarkable.

Design of Beam Pumping Unit Balancing Adjustment Device

2012 ◽  
Vol 524-527 ◽  
pp. 1368-1371 ◽  
Author(s):  
Qin Wu ◽  
Xi Xie ◽  
Wei Shen
Keyword(s):  
Energy Saving ◽  
Electrical System ◽  
Oil Companies ◽  
Theoretical Support ◽  
Pumping Unit ◽  
Low Efficiency ◽  
Pumping Units

In China, Three oil companies use all sorts of beam pumping units, but the operation of balancing adjustment is labor-intensive, low efficiency and adjustment accuracy in general. Many engineers try to improve these, so they design various kinds of devices to adjust the balance of pumping units, however, the intelligent level of most balance devices is low and the installation and maintenance is complicated and security is not high. In this design, pumping unit balancing adjustment technology for theoretical support, combined with mechanical and electrical system, an intelligent balancing adjustment device is designed. The experiment shows that after the installation of device, current degree of balance is optimized at 106%, besides energy saving reach to 8.5%.

Design of New Energy-Saving Pumping Unit Suitable for Remote Areas and Heavy Oil Recovery

2014 ◽  
Vol 926-930 ◽  
pp. 901-904
Author(s):  
Hong Guo ◽  
Shi En Liu
Keyword(s):  
Energy Saving ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Production Management ◽  
Oil And Gas ◽  
High Efficiency ◽  
Low Cost ◽  
High Energy ◽  
Remote Areas ◽  
Pumping Unit

At present, China's key oil and gas exploration and development was directed to heavy oil reservoirs and reservoirs in remote areas. As the main mechanical oil recovery equipment, pumping unit in general has some shortcomings in developing these kinds of reservoir, such as high energy consumption, short maintenance cycle, high cost of production management, and not suitable for remote area of harsh environment. In view of the deficiencies of the existing oil pumping unit, a new type of energy-saving pumping unit is designed with high efficiency and energy saving, stable and reliable, long pump inspection cycle, convenient maintenance and low-cost. It can fully meet the needs of production and maintenance for viscous oil wells and remote wells.

Simulation research on hydraulic hybrid assistant beam pumping unit

2015 ◽  
Vol 230 (11) ◽  
pp. 1795-1804 ◽  
Author(s):  
Yijie Liang ◽  
Tongjian Wang ◽  
Xin Wang ◽  
Weiquan Liang ◽  
Xinhui Liu
Keyword(s):  
Power Factor ◽  
Torque Ripple ◽  
High Energy ◽  
Load Torque ◽  
Hydraulic Hybrid ◽  
Load Rate ◽  
Motor Load ◽  
Pumping Unit ◽  
Pumping Units ◽  
Oilfield Equipment

Conventional beam pumping units have occupied an important position in oilfield equipment due to such characteristics as simple structure, high reliability, simple operation, easy maintenance, and so on. In fact, there are about 90,000 sets of beam pumping units in China. However, the unbalanced structure of the beam pumping units cannot be entirely eliminated because of the inherent geometry and mechanical properties of four-bar linkage, that is the electromotor equivalent torque ripple cannot be absorbed or eliminated by counterweight in up-and-down travels, which causes the electromotor to work under greatly changed load rate with low power factor and high energy consumption. The mechanical relationship of a conventional beam pumping unit was derived first, and then parameters of a basic structure were optimized through dynamic optimization. On this basis, the hydraulic hybrid solution was proposed, and a secondary balance was conducted on the optimal pumping unit electrometer’s load torque. Computer simulation model was established to carry out a system dynamic analysis and the results showed that the scheme can reduce the motor load torque ripple, improve motor load rate and power factor, and reduce motor power effectively. It may bring tremendous decrease of electricity cost and have great significance for oilfield equipment energy saving, oil extraction cost reduction, and promotion of petroleum products’ competitiveness.

The Design Analysis of New Energy-Saving Parallel Four-Bar Pumping Unit

2012 ◽  
Vol 482-484 ◽  
pp. 260-263
Author(s):  
Xia Yang ◽  
Jing Song ◽  
Zhao Guo
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Dynamic Performance ◽  
Average Power ◽  
Practical Experience ◽  
High Energy ◽  
Structural Features ◽  
New Energy ◽  
Pumping Unit ◽  
Low Efficiency

Be aimed at the problem that conventional beam pumping unit has low efficiency, high energy consumption and other issues, this article mainly carries out the design and analysis of new energy-saving pumping unit from the principle of the mechanical system pumping, including structural features and dynamic performance. And combined with examples, we have energy-saving analysis on the basis of practical experience in the traditional. Analysis showed that the newly-designed pumping unit reduces average power by 37.2% comparing with its conventional counterpart. The much lower theoretical energy consumption and the better dynamic performance indicate that the new energy-saving pumping unit is well-designed and will have a significant application prospect.

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