NEW METHOD OF INCREASING OIL RECOVERY IN MICROTRACK POROUS MEDIA

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Published: Monday, 26 August 2019 00:25
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1GURBANOV R.S., 2MAMMADOVA M.A., 3HAJIYEV A.A.

1The Ministry of Education of Azerbaijan Republic,

Research Institute “Geotechnological problems of oil, gas and chemistry"

2Azerbaijan State University of Oil and Industry

3Scientific Research Project Institute “Neftegaz”, SOCAR

Abstract. Firstly, it has experimentally been revealed that the reason of the anomalous properties manifestation of the viscous fluids, particularly water and these properties strengthening for anomalous fluids in the cracks is new micro-cracked effect of “microcrack-fluid”. For realization of the fractured fields development process it is recommended taking into consideration the detected micro-cracked effect in “microcrack-fluid” system.

The influences of the pressure variation value and cracks opening on oil recovery factor have been investigated according to viscous and anomalous oil displacement from plane-parallel and plane-radial microcracks by water, polymer solution and by PAA (Polyacrilamid). The models for assessment of the viscous and anomalous oils displacement efficiency by water and PAA solution for wide range of plane-parallel and plane-radial microcrack opening variation have been obtained mathematically.

Keywords: crack opening, anomalous water, hydraulic resistance, microcrack-liquid effect.

FRACTAL DESCRIPTION OF INTERPHASE INTERACTIONS IN DISPERSIVE FILLED METAL-POLYMER COMPOSITES

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Published: Monday, 26 August 2019 00:24
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O.A.Dyshin, İ.A.Qabibov, A.J.Suleymanova

Azerbaijan State University of Oil and İndustry

Annotation. Based on the fractal description of interfacial interactions in dispersed-filled metal-polymer composites, it was shown that in the considered composite “styrene-butadiene rubber-copper”, in contrast to the “polymer-polymer” systems, the strength of the interfacial layer decreases with increasing thickness and even favorable circumstances do not always reach the strength of the polymer matrix, due to the fractal nature of the surface of the filler and the low level of contact between it and the polymer matrix.

The estimates of the threshold values ​​of the volume fractions of the nanoclusters of the polymer matrix and nanofiller are obtained. The transition of these quantities through the thresholds found leads to a weakening of the transfer of mechanical stress from the polymer matrix to the filler. To study this transfer effect, a generalization of the micromechanical model of the transfer of mechanical stress from the polymer matrix to the filler is given in the case when the strength of the interfacial layer is less than the strength of the polymer matrix.

Keywords: fractal dimension, interfacial layer, nanoclusters, loose-packed matrix, dispersion-filled composite, aggregative stability.

INVESTIGATION OF COMPARATIVE PROPERTIES OF BEARING MATERIALS AND CLUTCH BEARINGS OF THE FRICTION UNITS OF HOUSEHOLD DEVICES

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Published: Monday, 26 August 2019 00:22
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ISHARIFOVA A.V., GULIYEV A.A.

(Azerbaijan State Oil and Industry University)

Abstract. The article deals with the comparative study of tribological properties, of composite materials copper-graphite and bronze-graphite, working in light and medium mode and their relationship with porosity and the principles of self-lubrication.

Keywords. Antifriction materials, bearings, copper-graphite materials, wear resistance, friction coefficient, mechanical properties, porosity.

OBTAINING MECHANOALLOYED COMPOSITES AND EXPERIMENTAL INVESTIGATION OF FRICTIONAL WEAR CHARACHTERISTICS IN DRY FRICTION CONDITIONS

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Published: Monday, 26 August 2019 00:17
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ALIYEV A.M., YUSUBOV F.F

(Azerbaijan State Oil and Industry University)

Abstract: This article is devoted to the preparation of environmentally friendly composites by powder metallurgy and the study of tribological properties. In the development of materials used technologically stages like: grinding, mixing, pressing and synthesis. Tribological tests were carried out in MMW-1 friction machine with vertical block using the “pin-on-disk” mechanism in dry conditions. As a counterbody, steel disc (44-46HRC) was used. To determine changes in the tribological characteristics in the studied samples at different loads, sliding distance and velocity were left unchanged.

Key words: mechanical alloying, grinding, mixing, powder metallurgy, composites, friction and wear

STRUKTURE AND PROPERTTIES OF MICRO-ALLOYED STRUCTURAL STEELS

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Published: Monday, 26 August 2019 00:20
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CABBAROV T.Q.          

(Azerbaijan State Oil and Industry University)

Abstract. The paper has shown the depence of microalloying and heat treatment on structural strength of construction steel The dependence of austenitizing temperature and cooling velocity when hardening in different media on possibility of these steel to generating the packet martensite has been shown as well. It has been established that microalloying of the 17Mn1Si2 steel by borom promotes the increase of structural strength and cold resistance at low temperatures.

Keywords: construction, steel, microalloying, martensite, borom, cold resistance, austenite.

DETERMINATION OF THE OPTIMAL PARAMETERS OF THE PROCESS OF GRINDING ORES IN SAG MILL MILLS

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Published: Monday, 26 August 2019 00:15
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HAMIDOV F.M.

Azerbaycan İnterneyşnl Mayninq Kompani Limited

Annotation. The economic efficiency of the grinding process in the mining industry is largely determined by the costs associated with energy consumption, grinding balls and lining.

The article presents the results of a study on the optimization of the grinding process of mountain species and the establishment of a regression relationship between the productivity of the mill with the technological parameters of the process.

Keywords. Mill, grinding balls, lining, regression connection, many factorial experiment

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