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Posts in category RES. 2018. Issue 2

Salnikov A. V., Shcherbatyuk Y. V.
Evaluation of the effectiveness of the use of solvents for cleaning small-diameter pipelines from asphalt-tar-paraffin deposits

In the article the questions of the estimation of the effectiveness of the use of the solvents Azol 4020, Nefras-S2-80 / 120, toluene (methylbenzene), acetone (dimethyl ketone), n-hexane for the cleaning of small diameter pipelines from asphalt and resin paraffin deposits. The results of laboratory studies on the effect of changing the tem-perature of the solvent and the rate of washing on the removal efficiency of asphalt-tar-paraffin deposits from such piping are presented.

Nekuchaev V. O., Mikheev М. M.
Influence of heat treatment and ultrasound on the viscosity of high-paraffinic oil of the Kyrtaelsk deposit of Komi Republic

The paper studies the flow curves, from which the values of viscosity, high-par-affin oil of the Kyrtael field of the Komi Republic at low temperatures, exposed to heat (heat treatment) and ultrasonic treatment. It is shown that the effect of acoustic treat-ment on the rheology of the oil is similar to the effect of heat treatment when heated to the same temperature. Heating up to 80°C significantly reduces the viscosity and thix-otropic properties of Kyrtael oil at low temperatures at both heating methods. Heat treatment and ultrasonic heating to temperatures in the range of 40-60 °C significantly worsen the same rheological properties.

Kuzin A. V.
Problems and prospects of geological study siliceous strata sublatitudinal 20 km north Yekaterinburg

Studied strata sublatitudinal chert, siliceous shale, mudstone, siderite, occurring in sub-vertical position. Power thickness of more than 5 km stretch from west to east 20 km. Objective – to determine the direction of incidence strata of sources and deploy-ment time, formation type column and its metallogenic specialization. Methods – con-ducting electric and magnetic survey, radiometric shooting on the local area, sam-pling, study of thin sections and polished sections. The plot is located in the central part of the area of known mineralization elliptical arsenic species, sulfosalts, tellu-rides, controlling its placement in the southern part of Berezovsky, and in the north – Blagodatsky gold deposits. Overall precipitation flyschoid sequences assigned to the formation. It was found north direction cut capacity, the presence of dislocation frac-ture, metasomatic sericite-calcite-sulfide study species, the presence of layers of hem-atite schist by siderite. The density, magnetic susceptibility, radioactivity, electrical resistivity of various lithological varieties of rock strata in the samples and in situ. The presence of clay layers of tape, allegedly formed in the Cenozoic-Neogene in the res-ervoir, the bottom and the shores of which were presented siliceous shales occurring in sub-vertical position. Dextral dislocation flyschoid thickness and its inclination to the north occurred before the introduction of the Carboniferous in the large Verch-Iset granodiorite massif, before the formation of the average thickness of the Devonian volcanic rocks of andesite formation. Results can be used to predict the deposits of oxidized iron ore, gold mineralization on the electrochemical barrier at the intersec-tion of gold-bearing dykes of granite porphyry and hematite schists.

Terentyev A. A., Durkin S. M.
A comparison of the different approaches of the forecast of technological parameters of development of deposits high-viscosity oils

As the reserves of light oils are developed more and more ahead of time, the problem of involving abnormally viscous oils and bitumens in the active development of huge resources becomes more and more urgent from year to year. The experience of laboratory and field studies accumulated to date shows that the most effective and industrially developed technology for the development of such resources is thermal methods of oil production. One of the most important tasks in the design of fields is to predict the volume of oil production. It is extremely important for the management of

oil companies to determine the payback period based on the forecast of recoverable products. In this work is the calculation of the technological parameters of thermal-mining development for the sector B mining unit 2T-4, which will be developed mod-ernized thermal-mining system. Forecasting of productive characteristics was per-formed using numerical modeling, construction of one-factor statistical regression on the actual data of experimental sites OPU-2 bis, OPU-3 bis and using an analytical method for calculating technological indicators of development.

Kamenskikh S. V., Ulyasheva N. M.
Evaluation of the effect of buffer liquids on the intensity of destruction of filter cakes in casing

he article deals with the problem of removal from the wall of the wellbore formed by drilling mud filter cake, which, on the one hand, greatly reduces further penetration of the flushing liquid into the reservoir, and on the other prevents a reliable separation of the seams while cementing casing. In the work conducted and presents the results of laboratory tests for the assessment of washing ability of different buffer liquids, including solutions of inorganic salts (electrolytes) with the addition of the

stabilizer is CMC as using additional reagents (NTF and Atren SA), and without them. Based on the conducted experiments and investigated the dependence of the cleaning ability of buffer liquids of the type and concentration of drilling fluids, inorganic salts and additional reagents, etc.

Vishnevskaya N. S., Garin M. A.
Maintaining the reliability of ball valves during operation in winter in the Far North

One of the most important tasks determining the safety of the environment during operation and maintenance of ball valves in the winter in the Far North is the efficiency and trouble-free operation of the gas pipeline.

The frequency of the complex of operations TO-2 is carried out according to the approved schedule of work 1 every 6 months.

Seasonal maintenance of the TO-2 is carried out in the preparation of valves for the autumn-winter and summer periods of operation.

The restoration of the ball valve performance is presented in two variants: 1 – without a project; 2 – with a project.

Mihajlović S., Simić N., Dobrilović D., Desnica E., Radosav D.
Internet of Things and WSN technology applications in Oil and Gas industry

Digital technologies are a considerable factor in the oil and gas industry. In the post-Internet global information era, the Internet of Things (IoT) paradigm is consid-ered as both technology and economic wave. Wireless sensor networks (WSN) repre-sent one of the key enabling technologies for IoT. IoT connects all things to the Internet and between each other and achieves the goal of intelligent identifying, managing, monitoring, locating, and tracking as well. In this paper WSN and IoT some interesting applications in oil and gas industries around world were represented.

Marenich K. N., Dubinka E. S.
Suppression of the reverse energy flow of an induction motor as a factor of increasing the electrical safety of the electrical complex

The industrial operation of mine precinct electrical complexes is associated with the probability and risks of damaging flexible cables of power connections and, as a consequence, the occurrence of accidents and hazardous electrical conditions.

It is established that the protective shutdown function of multi-machine, power-ful electrical systems is insufficient, and priority should be given to automatic two-way de-energization of emergency power connections.

The rationality of the effect of induction-dynamic braking of an induction motor of a consumer as a means of suppressing its reverse energy flow in the case of an emergency (dangerous) condition of the supply cable is proved

Ivenina I. V, Smirnov Yu. G., Lyutoev A. A.
Method of express analysis of residual oil containing water

The paper describes a method for express analysis of the composition of water samples for the content of residual oil in them using a series of calibration solutions on a spectrophotometer using the wavelengths of the visible part of the spectrum. The method can be used for express diagnostics of water purification efficiency from oil pollution.