METHODOLOGY FOR CALCULATING A WORKING UNDER HEAVY CONDITIONS OF A REDUCER OF A DRIVER OF A WELL-ROD PUMP

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Published: Friday, 07 February 2020 07:13
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Eyvazova Z.E., Salexli U.A.

Azerbaijan State University of Oil and Industry

Annotation. Oil pumping from wells requires continuous improvement of oil pumping techniques and technology. The purpose of this upgrade is to broaden the scope for applying this method in oil extraction through the creation of more sophisticated cutting-edge equipment, especially by pumping oil from deep wells. This article provides a basic method for creating more powerful reducers than manually operated machine tools, as well as a cinematic scheme for the development of mathematical software and the most economically feasible use of machine learning software. it will also be available for deep wells operation and for longer stretches of stems. The formulas are presented to determine the forces arising on the shaft of the shaft of the hanger, as well as the maximum torque provided by the reducer.

Key words: pumping units, reducer, twisting moment, strength, deep wells, stroke length, balancing.

INFLUENCE OF PRESSURE OF PRESSING ON QUALITY OF THE PLASTIC DETAILS WORKING IN OIL-FIELD EQUIPMENT

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Published: Friday, 07 February 2020 07:12
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Gasanova N.A.

Azerbaijan State Oil and Industry University

Abstract: In production of plastic details from thermo reactive materials the main technology factor influencing on quality of details is pressure of their production. In this regard in the wide range influence of pressure of pressing on quality of details of the oil-field equipment is investigated depending on brand of press material and a construction of details. On the basis of the received results it is recommended the optimum modes for concrete brand of the plastic applied in the concrete working oil-field equipment. 

Keywords: durability, accuracy, hardness, pressure of pressing, correlation dependences.

MODEL FOR QUANTITATIVE ASSESSMENT OF WEAR IN FRICTION

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Published: Friday, 07 February 2020 07:10
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Gulgazli A.S., Aliyev A.M.

Azerbaijan State University of Oil and Industry

Abstract: The work is devoted to a quantitative assessment of friction wear. For this purpose, a geometric model of the surface roughness of the wear material has been constructed. Is accepted the hypothesis that the edges of the protrusions are the lines where the maximum shear stresses occur. The position of these lines has been determined. An area of variation of the angle, which determines the position of the protrusions on the border, is found. The maximum value of compression pressure, at which friction wear begins, is determined, a formula is found for the mass of the body part being worn.

Keywords: wear, friction, main stresses, main sections, yield strength, endurance limit, pressure, roughness, friction coefficient,

STUDIES OF THE WEAR CAPACITY OF GROUTING SOLUTIONS

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Published: Friday, 07 February 2020 07:07
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Akhmedov A.S., Habibov I.A.

Azerbaijan State University Oil and Industry

 Annotation. It is known that when drilling deep wells, due to possible complications that impede normal well drilling, the use of heavier flushing fluids is required. When using heavier solutions, the operating conditions of the equipment deteriorate (due to an increase in the abrasiveness of the solution). The life of the parts of the mud pumps is directly dependent on the density of the flushing fluid. The assessment of the influence of individual factors on the nature and intensity of abrasive wear by washing and grouting mortars shows the presence of discrepancies in some cases, which is explained primarily by differences in the objects of research and the experimental design.

In this paper, we present the results of studies devoted to the study of the wearing ability of grouting mortars.

Keywords. Wash solution, abrasiveness, wear, mud pump, cement, coefficient of friction.

CYCLIC TENSION WITH INTERNAL PRESSURE OF THIN-WALLED CYLINDERS PRE-STRETCHED WITH TORSION

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Published: Friday, 07 February 2020 07:09
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Gulgazli A.S., Babaev A.M.

Azerbaijan State University Oil and Industry

 Abstract. We consider cyclic tension with internal pressure of a thin-walled cylinder, which is prestretched with torsion. Such cylinders are used in torque hydraulic cylinders. According to the principle of action, torque hydraulic cylinders are similar to power hydraulic cylinders. The main difference is that the rod of torque hydraulic cylinders does not translate forward and reverse, but rotates. The angle of rotation of the stem is limited to 360º.

Momentary hydraulic cylinders are also often called rotary hydraulic cylinders, or simply blinkers.

In fact, momentary hydraulic cylinders are inertialess engines that are capable of developing large torques, regardless of speed. Their use in most cases simplifies the kinematics of mechanisms.

Momentary hydraulic cylinders are widely used in agricultural machinery and special purpose machines. They are used to rotate the excavator bucket, rotate the scaffold platform and any other purposes requiring swing equipment. The effect of residual stresses on the number of cycles required for fatigue failure has also been investigated.

Keywords. Thin-walled cylinder, stress, tensile, torsion, strength condition, yield strength, fatigue failure.10.

HYDRODYNAMICS OF FLOW OF ONE-AND INHOMOGENEOUS LIQUIDS IN COLLECTOR SYSTEMS WITH PERMEABLE WALLS

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Published: Friday, 07 February 2020 05:24
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Mammadov G.А., Ismaılov R.Sh.

Azerbaijan State University of Oil and Industry

Annotation. The method of homogeneous and inhomogeneous liquids in collector systems with permeable walls is developed. A mathematical model of a one-dimensional flow of variable mass is presented. Taking into account different laws of friction resistance and modes of motion, formulas for calculating head losses along the flow length during the flow of viscous, viscoplastic, power and multiphase liquids are obtained.

Key words: homogeneous and inhomogeneous liquid, a collector system, the pressure loss of the flow regimes.

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