A New Simulation Model for a Beam-Pumping System Applied in Energy Saving and Resource-Consumption Reduction

Xing, Mingming; Dong, Shaojun

doi:10.2118/173190-pa

Cited by 24 publications

(19 citation statements)

References 8 publications

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“…For example, Costa's model could be further expanded, using the spare processing power made available through software optimization. Another line of study could lie in its use in well parameter optimization; for example, either maximizing oil production or minimizing energy consumption, integrating works such as those of Gu et al [16] and Xing and Dong [17].…”

Section: Resultsmentioning

confidence: 99%

Parallel Optimization of a Simulation of Dynamic Behavior of Directional Sucker-rod Pumping Wells

Araújo¹,

Xavier‐de‐Souza²

2016

Modelling, Simulation and Identification / 841: Intelligent Systems and Control

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Serial and parallel implementations of a finite difference simulator for the dynamic behavior of directional suckerrod pumping wells that takes into account fluid flow inside the rod-tubing annulus are presented and analyzed. The performance and scalability of the implementations are compared. The results show that the parallel versions bring significant speed improvements over the serial versions in the majority of cases, and that the efficiency of the parallel versions scales along with problem size.

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Section: Resultsmentioning

confidence: 99%

Parallel Optimization of a Simulation of Dynamic Behavior of Directional Sucker-rod Pumping Wells

Araújo¹,

Xavier‐de‐Souza²

2016

Modelling, Simulation and Identification / 841: Intelligent Systems and Control

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“…And, the characteristic analysis of longitudinal vibration of SRS is very important for the parameters optimization of sucker rod pumping system (SRPS) [3]. Therefore, the dynamic simulation of SRS is studied by domestic and foreign scholars.…”

Section: Instructionmentioning

confidence: 99%

Characteristic Analysis of longitudinal vibration Sucker Rod String With Variable Equivalent Stiffness

Xing

2018

MATEC Web Conf.

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Abstract. Considering the influence of variable equivalent stiffness on system response, the equivalent stiffness is defined as a step function, and a mathematical model of nonlinear longitudinal vibration of sucker rod string (SRS) is built. The dynamic response under displacement and load force excitation is solved by fourth-order Runge-Kutta method with zero initial condition. The results show the steady-state responses under the displacement and load force excitation of different function forms are different. The response curves of both displacement and velocity under the displacement and load force excitation of cosine function form have larger fluctuation than it under the displacement and load force excitation of sine function form. Therefore, the characteristic analysis of SRS plays an important role in understanding the influence of the excitation form and sensitive parameters on steady response. InstructionThe SRS is a slender rod of several kilometres, which transmits the movement from mechanical rotary motion to plunger linear motion [1][2]. And, the characteristic analysis of longitudinal vibration of SRS is very important for the parameters optimization of sucker rod pumping system (SRPS) [3]. Therefore, the dynamic simulation of SRS is studied by domestic and foreign scholars. After wave equation of Gibbs [4], an improved model of SRPS is built by Dale Russel Doty and S.D. . Recently, I.N.Shardakov, Luan Guo-hua and M.M Xing etal [7][8][9] analyse boundary conditions effecting rod law of motion and correct the excitation forces of rod longitudinal vibration. However, the most of aforementioned approaches have not been studied sufficiently. Relevant references [9][10] shows that the equivalent stiffness is a function of time, when the influence of the helical buckling of SRS on the equivalent stiffness is taken into consideration, which affects the characteristic of longitudinal vibration of SRS. Therefore, with non-constant equivalent stiffness, the dynamic Characteristic of SRS with Variable Equivalent Stiffness is necessary to be analysed.In this paper, the dynamic model and nonlinear second-order differential equations are built, and the entire equilibrium equation is given in section 2. In section 3, the system equations of nonlinear longitudinal vibration of SRS are solved by fourth-order Runge-Kutta method with zero intimal conditional. In section 4, the dynamic responses under different function forms of load force excitation as well as the load force and displacement excitation are given, and the effects of different function forms of load force excitation as well as displacement excitation on the amplitude-frequency curves are analysed. In section 5, the significance of dynamic characteristic of SRS and conclusions are summarized. Dynamic model and nonlinear second-order differential equationsIn order to establish mechanical model of nonlinear longitudinal vibration for SRS, the fundamental assumptions are as follows: (1)The tubing string is anchored; (2)The viscous damping of liquid is c...

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“…In recent years, some researchers continued to conduct on research work of a sucker-rod pump. In 2015, Xing et al [13] combined the belt transmission efficiency slip model and onedimensional wave equation to improve the optimise speed and accuracy of the dynamic performance of the sucker-rod pump. In 2016, Xing [14] established a model of the longitudinal vibration and flexural coupling of the sucker-rod pump and calculated its column mechanics by ANSYS software.…”

Section: Introductionmentioning

confidence: 99%

Dynamic coupling modelling and application case analysis of high-slip motors and pumping units

Feng

Cui

et al. 2020

PLoS ONE

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To solve the issues and difficulties in the high-coupling modelling of beam pumping units and high-slip motors, external characteristic experiments of high-slip motors were performed where the external database and characteristic correlation equations of the motors were obtained through data regression analysis. Based on the analysis of the kinematics, dynamics and driving characteristics of the beam pumping unit, a fully coupled mathematical model of a motor, pumping unit, sucker rod and oil pump was established. The differential pumping equation system of the pumping unit used a cyclic iteration method to solve the problem of high coupling among the motor, pumping unit, sucker rod and the pumping pump. The model was verified by experimental data of field l pumping wells. Theoretical calculations and experimental tests showed that the soft characteristic of the high-slip motor can reduce the peak suspension load of the sucker rod, peak net torque of the gearbox and peak power of the motor. In addition, the results show that the soft characteristic can also decrease the high-frequency fluctuation of the motor power curve and the torque curve of the gearbox. The highslip motor can improve the smoothness and safety of the pumping well system. (2020) Dynamic coupling modelling and application case analysis of high-slip motors and pumping units. PLoS ONE 15(1): e0227827. Where T d -Motor shaft output torque, kN�m; T n -The moment of resistance of the polished rod on the crank, kN�m; P-Suspended load, kN; B-Unbalanced weight of pumping unit structure, kN; J b -Beam moment of inertia, kg�m 2 ; M-Crank balancing torque, kN�m; τ-phasing degree,˚; ξ m -Transmission efficiency of the motor to the crankshaft; m-index, when T d >0, m = 1, when T d <0, m = −1; J p -Motor shaft equivalent moment of inertia, kg�m 2 ; J p0 -Moment of inertia of each component of the drive motor on the motor shaft, kg�m 2 ; J p1 -Moment of inertia of each component of the input shaft of the redactor, kg�m 2 ; J p2 -Moment of inertia of each component of the intermediate shaft of the redactor, kg�m 2 ; J p3 -Moment of inertia of each member of the crankshaft, kg�m 2 ;i-Total gear ratio from the motor output shaft to the gearbox output shaft; i 1 -Total gear ratio of the pumping unit gearbox; i 2 -Pumping gear gearbox low-speed gear ratio. By substituting Eq (25) into Eq (24), the differential equation of crank angular velocity and crank angle is obtained, as shown in Eq (27): Gearbox intermediate shaft 1.29 Gearbox crankshaft 5330

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A New Simulation Model for a Beam-Pumping System Applied in Energy Saving and Resource-Consumption Reduction

Cited by 24 publications

References 8 publications

Parallel Optimization of a Simulation of Dynamic Behavior of Directional Sucker-rod Pumping Wells

Parallel Optimization of a Simulation of Dynamic Behavior of Directional Sucker-rod Pumping Wells

Characteristic Analysis of longitudinal vibration Sucker Rod String With Variable Equivalent Stiffness

Dynamic coupling modelling and application case analysis of high-slip motors and pumping units

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