Research on flexible variable-speed control model and optimization method of rod pumping well based on genetic algorithm

Tan, Chaodong; Pengfei, Tan; Li, Xinlun; Wu, Haiyan; Yang, Rongqian

doi:10.1109/icasi.2017.7988285

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Currently, numerous flexible pumping units are employed in oil production, including the flexible ultra-long stroke pumping unit, flexible ultra-long polished rod stroke pumping unit, and double-range flexible pumping unit. However, the steel wire ropes applied in most flexible pumping units can deform and become tangled during operation, affecting process accuracy and increasing the chances of fractures with frequent use, leading to the reduced safety and reliability of the machines [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Xu,

Wang,

et al. 2024

Machines

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Beam pumping units have numerous energy transfer links, significant net torque fluctuations and negative net torque in gear boxes, which lead to a high installed power and low system efficiency. In order to improve the efficiency of the pumping unit, in this paper, an eccentric balanced positive torque pump unit was designed based on the principle of eccentric balance that is small in size and adopts a flexible energy transfer system instead of a rigid structure to significantly reduce the energy transfer link. The kinematics and dynamics of the eccentric balanced positive torque pumping unit were analyzed and the ability to operate with positive torque over the entire cycle was verified using theoretical computations. And the results of the theoretical calculation were verified by using the virtual prototype simulation and analysis software ADAMS (Automatic Dynamic Analysis of Mechanical Systems); the pumping unit was optimized for relevant parameters such as the balance crank angle λ and the counterweight center of mass offset angle δ. Indoor testing and comparative field application have demonstrated that the installed power has been reduced by 80%, the weight of the entire prototype has decreased by 25% and the system efficiency has reached 24.3%. Additionally, electricity savings of over 50% have been achieved. These results indicate that the pumping unit has been designed correctly, has high reliability and has significantly improved system efficiency while also providing an obvious energy-saving effect.

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Section: Introductionmentioning

confidence: 99%

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Xu,

Wang,

et al. 2024

Machines

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“…The oil deliverability increasingly declines as offshore oil exploitation moves forward. If the exploitation process cannot be dynamically adjusted, it will not only damage the submersible plunger pump but also increase the cost and decrease the system's production [13]. Therefore, many researchers have made contributions to making full use of the system's oil deliverability.…”

Section: Introductionmentioning

confidence: 99%

Supply and demand balance control of electrical submersible linear motor for offshore oil exploitation

Wang

Yang

2022

IET Electric Power Appl

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A supply and demand balance control method for an electrical submersible linear motor utilised in offshore oil exploitation is proposed in this study. The permanent magnet linear motor is replaced by an electrical submersible linear motor based on switched reluctance linear motor. The sensorless control method further enhances the stability of the oil exploitation system. Meanwhile, a supply and demand balance control method is proposed to maintain the fullness of the submersible plunger pump within an ideal range. An established speed function allows the speed of the electrical submersible linear motor to dynamically alter in response to the change in oil deliverability and increasing the system's production. Additionally, maintaining the fullness of the submersible plunger pump within the ideal range helps simplify the model and increase computation accuracy. Finally, the supply and demand balance control method is validated and compared with the intermittent oil exploitation control method by simulations and experiments. Results from the simulations and experiments indicate that the proposed method can increase the production of the offshore oil exploitation system in addition to causing the motor to follow changes in oil deliverability and adjust the speed.

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Research on flexible variable-speed control model and optimization method of rod pumping well based on genetic algorithm

Cited by 2 publications

References 4 publications

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Kinematic and Dynamic Analysis of Eccentric Balanced Positive Torque Pumping Unit

Supply and demand balance control of electrical submersible linear motor for offshore oil exploitation

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