scholarly journals Strategy of Compatible Use of Jet and Plunger Pump with Chrome Parts in Oil Well

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 83
Author(s):  
Oleg Bazaluk ◽  
Olha Dubei ◽  
Liubomyr Ropyak ◽  
Maksym Shovkoplias ◽  
Tetiana Pryhorovska ◽  
...  

During oil fields operation, gas is extracted along with oil. In this article it is suggested to use jet pumps for utilization of the associated oil gas, burning of which causes environmental degradation and poses a potential threat to the human body. In order to determine the possibility of simultaneous application of a sucker-rod pump, which is driven by a rocking machine, and a jet pump (ejector) in the oil well, it is necessary to estimate the distribution of pressure along the borehole from the bottomhole to the mouth for two cases: when the well is operated only be the sucker-rod pump and while additional installation of the oil-gas jet pump above its dynamic level. For this purpose, commonly known methods of Poettman-Carpenter and Baksendel were used. In addition, the equations of high-pressure and low-pressure oil-gas jet pumps were obtained for the case, when the working stream of the jet pump is a gas-oil production mixture and the injected stream is a gas from the annulus of the well. The values which are included in the resulting equations are interrelated and can only be found in a certain sequence. Therefore, a special methodology has been developed for the practical usage of these equations in order to calculate the working parameters of a jet pump based on the given independent working parameters of the oil well. Using this methodology, which was implemented in computer programs, many operating parameters were calculated both for the well and for the jet pump itself (pressures, densities of working, injected and mixed flows, flow velocities and other parameters in control sections). According to the results of calculations, graphs were built that indicate a number of regularities during the oil well operation with such a jet pump. The main result of the performed research is a recommendation list on the choice of the oil-gas jet pump location inside the selected oil well and generalization of the principles for choosing the perfect location of such ejectors for other wells. The novelty of the proposed study lays in a systematic approach to rod pump and our patented ejector pump operation in the oil and chrome plating of pump parts. The result of scientific research is a sound method of determining the rational location of the ejector in the oil well and the calculation of its geometry, which will provide a complete selection of petroleum gas released into the annulus of the oil well. To ensure reliable operation of jet and plunger pumps in oil wells, it is proposed to use reinforcement of parts (bushings, plungers, rods, etc.) by electrochemical chromium plating in a flowing electrolyte. This has significantly increased the wear resistance and corrosion resistance of the operational surfaces of these parts and, accordingly, the service life of the pumps. Such measures will contribute to oil production intensification from wells and improve the environmental condition of oil fields.

Author(s):  
O.Ya. Dubey

In order to calculate the working mode of a sucker-rod pump driven by the beam pumping unit and a jet pump during their simultaneous operation, pressure and temperature distribution along the wellbore from the bottom to the wellhead is determined for the real oil well 753-D "Dolynanaftogaz" Field Office. To calculate these parameters an improved methodology based on known Poettmann-Carpenter and Baxendel methods is used. As a result, the imperfection of these methods was eliminated, namely the assumption that pressure and temperature behavior along the wellbore is linear. This led to obtaining results which are up to 23% more accurate. In addition, using the algorithm for determining the density of perfect (ideal) liquid-gas mixture, the author has calculated the velocities of gas-water-oil and water-oil mixtures for a number of sections along the production tubing at different angles of the crank position in the beam pumping unit. The indicated values make it possible to determine the depth of the oilgas jet pump location in the well, and, consequently, the parameters at its input (pressure, temperature, velocity of the liquid-gas mixture, its density, etc.). Besides, the author studies the dependence which describes the behavior of the liquid-gas mixture density along the wellbore, as well as the relations between the density of the free oil gas, thevolumetric consumption gas content of the flow and the placement of the section under consideration. All of the above-mentioned algorithms were implemented using developed computer programs. The obtained results give a possibility to choose the location of the jet pump in the well which is the most advantageous one for ensuring maximum pressure reduction and the decrease in the stem load.


1943 ◽  
Vol 10 (1) ◽  
pp. A1-A12
Author(s):  
B. F. Langer ◽  
E. H. Lamberger

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.


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.


Author(s):  
Edi Purwaka

<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>


2020 ◽  
pp. 100-108
Author(s):  
G. I. Bikbulatova ◽  
A. A. Isaev ◽  
A. S. Galeev ◽  
Yu. A. Boltneva ◽  
O. A. Shipilova ◽  
...  

The technology for pumping out and partial utilization of associated gas in oil fields by the vacuum method, using a unit for pumping gas from the annulus of the well and pumping it into the product collection system (KOGS), have been implemented at wells at the Zarechnoye field of Geotech JSC in the Republic of Tatarstan. These wells are operated by sucker rod units. The use of the KOGS unit allowed us to evaluate the effectiveness of the production system under consideration Experimental studies have shown that a decrease in annular pressure causes a significant increase in the dynamic level and an improvement in the conditions of oil inflow to the well. The operation of sucker rod units in such conditions provides an increase in the delivery and filling coefficients of the pump and, accordingly, an increase in oil production.


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