Calculation of Load and Stroke in Oil-Well Pump Rods

1943 ◽  
Vol 10 (1) ◽  
pp. A1-A12
Author(s):  
B. F. Langer ◽  
E. H. Lamberger
Keyword(s):  
Longitudinal Vibration ◽  
Oil Wells ◽  
Oil Well ◽  
Test Results ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
Polished Rod

Abstract The sucker-rod pump as used in oil wells is treated as a problem in the longitudinal vibration of bars. Solutions are obtained for the forces and motions at both ends of the rod string, thus giving formulas for the calculation of polished-rod load and plunger travel. The results of the calculations are compared with test results.

scholarly journals Detection and Maintenance of Optimum Dynamic Fluid Level in Oil Well

2019 ◽  
Vol 8 (12) ◽  
pp. 5395-5399
Keyword(s):  
Control Method ◽  
Oil Wells ◽  
Oil Well ◽  
Fluid Level ◽  
Controllable Parameter ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
Signal Simulation ◽  
Simulation Results

This article discusses automation of oil wells equipped with sucker–rod pump assemblies. The control method of such assembly is proposed where variation of dynamic fluid level is selected as controllable parameter, the appropriate information can be obtained by mathematic processing of wattmeter graph signal. Simulation results are presented which confirm operability and efficiency of the proposed method of detection and maintenance of optimum dynamic fluid level.

Development and implementation of device for capturing large mechanical particles falling into the space between cylinder and plunger of sucker-rod pump

2020 ◽  
pp. 43-45
Author(s):  
L.G. Hajikerimova ◽  
◽  
◽  
Keyword(s):  
Oil Wells ◽  
Deep Well ◽  
Pressure Decrease ◽  
Sucker Rod ◽  
Large Particles ◽  
Sucker Rod Pump ◽  
Trapping Device

The deep pump, mainly sucker-rod deep pumping method is widely applied in the onshore oil wells of Azerbaijan. Despite the fact that the deep-well sucker rod pumping method is widespread, its operation in sand-producing wells is accompanied by various complications. Since mechanical particles wearing the pump parts out, falling into the space between the plunger and the cylinder, either wedge the plunger inside the cylinder or increase the gap between them. To prevent the ingress of large particles of sand into the gap between the plunger and the cylinder of the deep sucker rod pump, a device for sand trapping has been developed. The sand-trapping device is installed within the well tubing strings on the rod string and prevents the big particles of the liquid in the pipes falling into the gap between the plunger and cylinder. As the plunger, the device is started via balanced head. Due to the equipment installation, the liquid injected from the pump undergoes pressure decrease and the conditions for deposition and accumulation of large particles are formed.

Sucker Rod Pump Downhole Valve Selection for Wells with High Sand Production: Laboratory Test Results

2020 ◽  
Author(s):  
Jessica Del Pino ◽  
David Garzon ◽  
Walter Nuñez ◽  
Juan Gómez ◽  
Daniel Renteria ◽  
...  
Keyword(s):  
Laboratory Test ◽  
Test Results ◽  
Sand Production ◽  
Laboratory Test Results ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
Selection For

Research of Rod Pump Load Reducing Technology on Deep Wells

2013 ◽  
Vol 772 ◽  
pp. 808-813 ◽  
Author(s):  
Xue Qi Cen ◽  
Xiao Dong Wu ◽  
Gang Lei ◽  
Shu Qin Ma
Keyword(s):  
High Load ◽  
Electric Motors ◽  
Pumping System ◽  
Deep Wells ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
Pump Placement ◽  
Beam Pump ◽  
Polished Rod ◽  
Placement Depth

As the sucker-rod pump placement depth increases, the load at the polished rod rises as well. Meanwhile, high load at the polished rod limits further increase of pump placement depth. This paper mainly analyses polished rod load on pumping system units and describes several methods to reduce beam pump load that are used in deep wells. On the basis of theoretical analyzing of three load reducing technologies such as application of compound fiberglass sucker rods, linear electric motors and rod load reducer, it was determined that using compound fiberglass rods in real practical cases shows obviously higher efficiency than other two. linear electric motors technology has advantages of being used in deep wells as well. Moreover rod load reducer shows good performance in deep wells, but because it does not possess energy conservation characteristic it may be uneconomic and less effective during production.

scholarly journals Perencanaan Ulang Sucker Rod Pump pada Sumur “X” Lapangan “Y”

2018 ◽  
Vol 2 (1) ◽  
pp. 51
Author(s):  
Edi Purwaka
Keyword(s):  
Oil Well ◽  
Production Well ◽  
Fluid Level ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
High Fluid ◽  
Working Principle ◽  
Fluid Levels ◽  
Gas Lift ◽  
Medium Viscosity

<p>Tujuan dari penelitian ini untuk menentukan metode yang cocok digunakan untuk suatu sumur produksi, dan salah satu metode yang dipakai adalah pengangkatan buatan dengan pompa, yaitu <em>Sucker Rod Pump</em> (SRP). Metode pemakaian Pompa Angguk atau <em>Sucker Rod Pump</em> (SRP) digunakan apabila suatu sumur minyak sudah tidak dapat lagi mengangkat fluida dari dasar sumur ke atas permukaan secara sembur alam, atau dengan menggunakan metoda yang lain misalnya gas lift tidak memenuhi persyaratan. Sucker rod pump merupakan salah satu metoda pengangkatan buatan, dimana untuk mengangkat minyak kepermukaan digunakan pompa untuk mengangkat minyak kepermukaan digunakan pompa dengan rangkai roda (rod). Pompa ini digunakan untuk sumur-sumur dengan viskositas rendah-medium, tidak ada problem kepasiran, GOR tinggi, sumur-sumur lurus dan fluid level tinggi. Prinsip kerja sucker rod merupakan perpaduan gerak antara peralatan di permukaan dan dibawah permukaan. Dan hasil akhir yang diharapkan dengan menggunakan metode <em>artficial lift</em> ini adalah untuk memaksimalkan produksi sehingga dapat memenuhi target produksi yang telah ditentukan.</p><p><em>The purpose of this research is to determine the suitable method used for a production well, and one of the methods used is artificial lifting with a pump, namely Sucker Rod Pump (SRP). The method of using a Sucker Rod Pump (SRP) is used if an oil well is no longer able to lift fluid from the bottom of the well to the surface by natural spray, or by using other methods such as a gas lift that does not meet the requirements. Sucker rod pump is one of the artificial lifting methods, where to lift the oil to the surface a pump is used to lift the oil to the surface using a pump with a rod chain. This pump is used for wells with low-medium viscosity, no sand problems, high GOR, straight wells and high fluid levels. The working principle of a sucker rod is a combination of motion between equipment on the surface and below the surface. And the expected end result using the artficial lift method is to maximize production so that it can meet predetermined production targets.</em></p>

The Prediction of Scaling Time in Producing Wells of ASP Flooding in the Fourth Plant of Daqing Oilfield

2013 ◽  
Vol 734-737 ◽  
pp. 1313-1316 ◽  
Author(s):  
Qing Gong Dang ◽  
Ji Ping Bian ◽  
Hui Ling Cheng
Keyword(s):  
Physical Simulation ◽  
Ph Value ◽  
Oil Wells ◽  
Oil Well ◽  
Test Results ◽  
Well Production ◽  
Starting Time ◽  
Asp Flooding ◽  
Local Test ◽  
Production Conditions

After used technology of the ASP flooding in the fourth plant of Daqing oilfield, the problem of scaling becomes serious in oil wells. The scale samples do not dissolve to acid or alkali, and it difficult to be treated with regular method, so it has influenced the normal proceeding of well production. For solving this phenomenon, the displacement experiment was proceeded to simulate the site actual oil production conditions by using the high pressure physical simulation tests. By measurement of variation law of permeability in the process of ASP flooding and pH value in produced liquid along with time, the paper predicted the starting time and duration of scaling during oil well production. And rationality of the prediction results was verified by using the local test results. Finally the prediction formulas of scaling time which the oil wells with different spacing in ASP flooding were summarized.

scholarly journals Analysis of the performance indicators of oil well sucker-rod pumps

Dependability ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 22-26
Author(s):  
Z. E. Eyvazova ◽  
T. E. Farajov
Keyword(s):  
Theoretical Analysis ◽  
Oil And Gas ◽  
Gas Production ◽  
Normal Operation ◽  
Oil Well ◽  
Oil And Gas Production ◽  
Sucker Rod ◽  
Sucker Rod Pump ◽  
Computer Calculations ◽  
Long Stroke

The paper notes that as the depths of operated wells grow, the application of cable and pulley mechanisms becomes preferable as compared to the existing pumpjacks. A generalized theoretical analysis of the kinematics of cable and pulley drives is set forth. The authors present the general theoretical analysis of the kinematics of the above mechanisms, as well as the results of computer calculations based of the developed equations for a number of cases. Further analysis of the results showed that the crank mechanisms of a rope pulley have “smooth” kinematics. The research resulted in a proposed invention of the design of mast-type oil well sucker-rod pump drive with lower steel intensity and power consumption that would allow increasing the performance of sucker-rod pumps.The Purpose of this article consists in finding a utility model of a pump for the well rod in order to ensure the environmental safety of the equipment. That is achieved by lightening the metal structure of the pump with rotary stem and energy consumption is reduced. In the context of this problem, some calculations were performed in order to prove the system’s dependability. Based on the performed calculations it was established that the light structure can be used instead of the old heavy structure being its environmentally safe version. Experimental studies conducted by AzINMASH Research and Design Institute of Petroleum Engineering (Baku, Azerbaijan) indicate the feasibility of normal operation of sucker-rod pumps under the condition that n∙S = 54÷60 m/min. The authors examined the dependence between the peak output Q and the number of strokes n for various standard pumpjack sizes. The analysis of the parameters shown that the value of the product n∙S in the existing pumpjacks is below the recommendations based on experimental data, i.e. there is a tangible opportunity of increasing the productivity by extending the stroke of the rod hanger center, since well pump barrels may be as long as 6 to 7 meters. Estimates show that while studying the kinematics of long-stroke drives the changes in the length of the rope may be practically disregarded due to the displacement of the rope-to-pulley contact point. This simplifies the formulas that describe the kinematics of this type of long-stroke drives. Using the resulting formulas, comparative computer calculations for various cases were performed. It is shown that cable and pulley mechanisms have “softer” kinematics. The calculations confirmed the advisability of modification of the pump’s design that ensured reduced pollution of environment and energy savings. The future world will need renewable sources of energy, more power-efficient oil and gas production, minimal or zero pollution of the environment, thus the proposed solution appears to be of relevance. The authors propose a more productive design of sucker-rod pump that is easy to install and maintain at oil and gas production facilities. That can be achieved based on the calculations mentioned above. 

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