Equipment and Technologies for Oil and Gas Complex

COMPLICATIONS THAT ARISE DURING WELLS OPERATION
BY ELECTRICAL SUBMERSIBLE CENTRIFUGAL PUMPS (ESP)
AT THE FIELDS WITH EXTRA VISCOUS OIL, DEVELOPED IN THE MODE
OF STEAM GRAVITY DRAIN AND THE METHODS OF THEIR PREVENTION (p. 5)

Vladimir Mikhailovich Valovsky, Dr. of tech. sci., Adviser to the Directorate of Oil Reservoirs Engineering Processes and Technologies,

Konstantin Vladimirovich Valovsky, Dr. of tech. sci., Head of the Petroleum Engineering Laboratory of Well Operation and Servicing Department,

Georgy Yurievich Basos, Cand. of tech. sci., Head of the Process Engineering Sector, Well Operation and Servicing Department

TatNIPIneft – PJSC "Tatneft" named after V.D. Shashin

32, M. Djalil str., Bugulma, 423236, Republic of Tatarstan, Russian Federation,

e-mail: valovsky@tatnipi.ru

Alexander Vladimirovich Artyukhov, Deputy-Chief of the Oil Production Support Department

PJSC "Tatneft" named after V.D. Shashin

75, Lenin str., Almetyevsk, 423450, Republic of Tatarstan, Russian Federation

Based on the experience obtained during wells production lifting when developing Ashalchinsky extra-viscous oil field, the main complications that can arise during wells operation using steam gravity drain, caused by high temperatures of production wells have been analyzed. The failures of hydraulic protection of submersible electric motors of downhole centrifugal pumps, loss of elasticity and ruptures of the orifice plate bellows, adhesion of oil components, end-face mechanical seal damage, failures of ESP power cable and downhole elements of the thermal and pressure gauge control system, as well as complications related to scaling in the downhole pumping equipment are considered. Some measures to solve these problems are proposed. Particularly, they include piston seals and metal bellows mechanical seals, downhole pressure recording by means of pressure measurements of the inert gas injected into the well through a capillary tube, encasing of ESP in housing with the extension pipe, application of the inhibitors preventing scaling, scale depositions removal applying chemical methods.

Keywords: extra-viscous oil; steam-assisted gravity drainage; electrical submersible pumps; temperature resistant design; downhole problems; seal section; cable; thermal and pressure gauge control system; scaling; inhibitors; chemical methods.

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UDC 622.276.53.054.23:621.67-83 DOI: 10.33285/1999-6934-2019-3(111)-12-16

RESEARCH OF THE WEAR IMPACT OF MECHANICAL IMPURITIES PARTICLES
ON THE ELECTRIC-CENTRIFUGAL PUMPS NODES (p. 12)

Viktor Georgievich Ostrovsky, Cand. of tech. sci., associate professor,

Dmitriy Igorevich Shishlyannikov, Cand. of tech. sci., associate professor,

Sergey Viktorovich Vorobel, Cand. of tech. sci., associate professor

Perm National Research Polytechnic University

29, Komsomolsky prosp., Perm, 614990, Russian Federation,

e-mail: dish844@gmail.com

One of the most common complicating factors that have a negative impact on the service life of electric-centrifugal pumps (ECP) for oil production is mechanical impurities presence in the pumped well fluid. The relevance of the problem in relation to the research of abrasive wear of electric centrifugal pump units has been substantiated. The construction and principle of operation of the bench installation for testing the working stages of electric centrifugal pumps is described. The methodological grounds of conducting accelerated tests of ECP, that provide a qualitative assessment of the service life of the ECP working stages of various construction, is described. The results of the study of the hydro-abrasive wear of VNN5A-100 working stages are presented. The ECP stages were subjected to expedient bench testing at different rotation frequencies of the drive motor shaft with an increased concentration of solid abrasive particles in the model fluid. The wear effect of the seals of the electric centrifugal pump working stages on its characteristics was evaluated. The main destruction zones of the ECP working stages, subjected to the influence of mechanical impurities particles contained in the pumped liquid flow are identified. The factors affecting the hydro-abrasive wear intensity of ECP working stages are determined.

Keywords: electric-centrifugal pump installation; hydro-abrasive wear; testing; laboratory bench; mechanical impurities; operational characteristics; operational life time.

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UDC 622.276.5.05+622.276.53 DOI: 10.33285/1999-6934-2019-3(111)-17-22

EFFICIENCY OF OIL PRODUCTION INCREASE
DUE TO INTELLIGENT EQUIPMENT INTRODUCTION (p. 17)

Vitaly Anatolievich Yasashin, Dr. of tech. sci., Professor,

Alla Aleksandrovna Smirnova, student

National University of Oil and Gas "Gubkin University"

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: yasashin@rambler.ru

Hydrocarbons production as a raw material is of a great importance for the economy of our country. That’s why, great importance is given to the production sector. A well, its construction and operation plays the key role in this field of activity. The main way of production efficiency increase is equipping of a common, typical well with additional metrological equipment, followed by its conversion into an intelligent one.

The article overviews examples of wells operation using a sucker-rod pumping unit (hereinafter referred to as SRPU) and an electric submersible pump (hereinafter, ESP). For SRPU, due to the "Kvantor-3R" complex, the efficiency of the well operation is increased by tracking of the range of oil level operational characteristics in the well and the number of pump swings due to echo-metering and load dynamo-metering. For ESP systems, the efficiency increase is achieved by the introduction of a telemetric system and an intelligent Control Station.

The analysis of the standards in the problem under consideration proves complete absence of normative-technical documentation.

Keywords: oil; well; production; pump; intelligent (smart) well; standard.

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UDC 622.24.051.55 DOI: 10.33285/1999-6934-2019-3(111)-23-27

IMPROVEMENT OF CENTRAL WASHING
OF A ROLLING DRILLING TOOL (p. 23)

Dmitry Yurievich Serikov, Dr. of tech sci., assistant professor,

Nikolay Mitrofanovich Panin, Cand. of tech sci.

National University of Oil and Gas "Gubkin University"

65, Leninsky prosp., Moscow, 199991, Russian Federation,

e-mail: serrico@rambler.ru

Oleg Gennadievich Blinkov, Dr. of tech sci., Professor-adviser

Ural Federal University named after B.N. Yeltsin, the first President of Russia

19, Mir str., Ekaterinburg, 620002, Sverdlovsk region, Russian Federation

Andrey Olegovich Shigin, Dr. of tech sci., Professor

Siberian Federal University

79/10, Svobodny prosp., Krasnoyarsk , 660041, Russian Federation

The results of the work aimed at further improvement of the central washing of the rolling drilling tool are presented. The interdependencies of the main factors affecting the efficiency of the cleaning process of drill bit cutting structures and wells bottom zones have been established when drilling with a roller drill tool. The options for the most effective direction of the central jet ting for drill-pipe cutting structures’ various types and design as well as drilling conditions are analyzed. The necessity of carrying out design measures to reduce the adverse effect of the packing formation effect on the peripheral rims of a roller drilling tool equipped by only a central flushing system is substantiated. The advantages and disadvantages of the central scheme of a roller drilling tool washing and various directions of its further improvement are described. New variants of roller drilling tool designs with a central washing circuit, equipped by mobile jetting units are presented.

The use of new variants of central hydraulic assemblies constructions that provide better cleaning of the inter-cutter and teeth row grooves of the drill-bit cutting structures of the main and peripheral rims of a rolling cutter as well as the entire well bottom zone as a whole, will make it possible to increase the efficiency of the rolling-cutter drill bits and to reduce the cost of drilling.

Keywords: roller drilling tool; central flushing; flushing fluid.

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UDC 622.276.5.05:621.513.2 DOI: 10.33285/1999-6934-2019-3(111)-28-31

ESTIMATION OF THE VOLUME COEFFICIENT AND POWER
OF THE OIL-FILLED COMPRESSOR UNIT FOR PUMPING GAS
FROM THE ANNULUS OF OIL WELLS (p. 28)

Igor Yurievich Bykov, Dr. of tech. sci., Professor

Ukhta State Technical University

9, Pervomaiskaya str., Ukhta, 169300, Komi Republic, Russian Federation,

e-mail: ibykov@ugtu.net

Alexander Vladimirovich Sevastyanov, Executive Director

LLC "ZDT "Areopag”

4, bld. 3, Letter A (BC "Lakhta-2"), Optikov str., St. Petersburg, 197374, Russian Federation,

e-mail: info@areopag-spb.ru

The most important characteristics of piston compressors are the volume coefficient (feed coefficient) and its power, which are differently used due to their design specific features.

The paper presents the volume coefficient calculations with account of the dead space and the formula for calculation of the actual capacity of the oil-filling compressor unit as well as an estimation of the mechanical efficiency according to the results of experimental tests.

Keywords: volume coefficient; oil-filled compressor; adiabatic index; polytropic index; isothermal power; actual power.

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UDC 622.276.53.054.23:621.67-83 DOI: 10.33285/1999-6934-2019-3(111)-32-33

MODULE-HEATER (p. 32)

Valentin Mikhailovich Demidenko,

Sergey Ivanovich Dubinsky, Cand. of tech. sci., Deputy Head of the Center for Mathematical Modeling

JSC "VNIIZhT"

10, 3rd Mytishchinskaya str., Moscow, 129626, Russian Federation,

e-mail: vesper_dvm@mail.ru, Dubinsky.sergey@vniizht.ru

The paper describes the design and operation of the module-heater to be used for viscous oil heat that enters the ESP unit.

Keywords: module-heater; design; production of viscous oil.

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UDC 622.276.53-052 DOI: 10.33285/1999-6934-2019-3(111)-34-38

PREDICTION OF TUBING RELIABILITY
DURING PULSE NONSTATIONARY WATERFLOODING (p. 34)

Marat Yakhievich Khabibullin, Cand. of tech. sci., assistant professor of the Department "Oilfield Machinery and Equipment" of Oktyabrsky Affiliate

Ufa State Petroleum Technological University

54а, Devonskaya str., Oktyabrsky, 452607, Republic of Bashkortostan, Russian Federation,

e-mail: m-hab@mail.ru

In case of a pulse nonstationary waterflooding requires studying the processes that affect reliability and durability of the tubing string. In our case, with account of the dynamic solution at the low-frequency limit, it is necessary to determine the displacement of the media with known parameters of sizes and stress fields. The results obtained with account of the analysis, will be compared with the measurements got by different authors. Assuming the presence of the injected fluid oscillation frequencies or varying pressure pulses, one would expect that the radial motion is in the equilibrium with the pressure existing in each given period of time. The same assumption about low frequencies suggests that at distances of several borehole diameters in the axial direction, the pressure is substantially uniform. Accounting of these limitations, it can be expected that the relationship between the pressure and radial expansion of the wall will be adequately described by the theory of static elasticity.

As a result, some expressions were obtained for describing the behavior of pulsed waves propagating along the pipe wall. The reflected waves appear in any case either the velocity change is caused by the pipe thickness change, the Young's modulus change or the change of shear stiffness in the environment. Changes in the density or volumetric modulus of the injected fluid or the well radius also generate reflected waves, and all of them can be combined in one expression.

Keywords: pressure; displacement; fluid; well; elasticity; frequency.

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UDC 622.279:624.15 DOI: 10.33285/1999-6934-2019-3(111)-39-44

INFORMATIVITY OF THE GEOTECHNICAL METHODS
THAT MONITOR NON-CONFLUENT TYPE PERMAFROST SOILS (p. 39)

Dmitry Vladimirovich Manzyrev, Cand. of geol.-mineral. sci., Deputy-Head of the Geotechnical Monitoring Service of Engineering-Technical Center,

Mikhail Pavlovich Kamelin, Head of the Geotechnical Monitoring Service of Engineering-Technical Center

LLC "Gazprom dobycha Urengoy"

11а, 26th Congress of the CPSU str., Novy Urengoy, 629300, Tyumen region, Yamalo-Nenets autonomous territory, Russian Federation,

e-mail: d.v.manzyrev@gd-urengoy.gazprom.ru, m.p.kamelin@gd-urengoy.gazprom.ru

The results of geotechnical monitoring of engineering facilities of a gas-condensate field, built according to the I principle of using soils as foundations of non-confluent type permafrost soils, are considered. It has been established that with a decrease in the temperature of foundations’ permafrost soils their deformation decreases due to seasonal freezing-thawing. The foundations deformations are the main danger due to the long-term heaving of freezing foundations’ soils of the in areas with a buried roof of permafrost soils, under technological buildings with a ventilated underground. It is proposed to supplement the existing network of thermometric and geodetic observations of a gas-condensate field with new elements to increase the information content and reliability of geotechnical monitoring results.

Keywords: geotechnical monitoring; Urengoy field; permafrost soils; foundation deformations; thermometric observations.

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UDC 622.24:658-Б+622.276.7 DOI: 10.33285/1999-6934-2019-3(111)-45-50

SCIENTIFIC AND PRACTICAL BASIS OF SUPERVISION IN PETROLEUM INDUSTRY
OF THE REPUBLIC OF KAZAKHSTAN (p. 45)

Alexander Vladimirovich Muradov, Dr. of tech. sci., Professor, the Department of Metal Technology,

Mikhail Yurievich Kilyanov, Cand. of chem. sci., senior researcher of Physical and Colloid Chemistry Department,

Sergey Fyodorovich Vyaznikovcev, researcher, Department of Oil and Gas Wells Drilling,

Sergey Ivanovich Kolesnikov, Cand. of chem. sci., Head of Physical and Colloid Chemistry Department,

Vladimir Arnoldovich Vinokurov, Dr. of chem. sci., Professor, Head of Physical and Colloid Chemistry Department,

Leonid Vitalievich Igrevsky, Cand. of tech. sci., assistant professor, Department of Oil Fields Development and Operation,

Vladimir Sergeevich Verbitsky, Cand. of tech. sci., assistant professor, Department of Oil Fields Development and Operation

National University of Oil and gas "Gubkin University"

65, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: com@gubkin.ru, m.kilyanov@mail.ru, kontakt-sintez@yandex.ru, sikolesn@mail.ru,
vinok_ac@mail.ru, igrevskyleonid@gmail.com, verbitsky_vs@gubkin.ru

Nuraly Khozhaakhmetovich Guldzhumarov, Deputy-Director of the Department of Wells Drilling and Downhole Works

JSC "NK "KazMunaygas"

19, Kabanbay Batyr prosp., Astana, 010000, Republic of Kazakhstan,

e-mail: n.guldzhumarov@kmg.kz

The measures were taken for a supervisors’ team establishment in a "Kazmunaygas" subsidiary company with its further participation in the scientific and practical work during wells construction and workover with the wells drilling process and workover analysis and their readiness for being operated. It is shown, creation of the supervision service new structure allowed reduction of the wasted time while drilling and workover; reduction of the number of the technological process violations by drilling teams; significant improvement of wells cementing quality.

Keywords: supervision; well construction; well workover.

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UDC 622.24:550.832 DOI: 10.33285/1999-6934-2019-3(111)-51-59

ANALYSIS OF THE STATE OF THE METHODS AND
DECISION-MAKING MEANS OF WHEN DRILLING WELLS IN ACCORDANCE
WITH A COMPLEX GEOLOGICAL-TECHNOLOGICAL INFORMATION (p. 51)

Islam Isagalievich Dzhanzakov, Dr. of tech sci., Professor,

Saule Kairgalievna Buktybaeva, Dr. of Philosophy, assistant professor

Atyrau University of Oil and Gas

1, Azattyk prosp., Atyrau, 060002, Republic of Kazakhstan

Igor Anatolievich Piriverdiev, Cand. for a doctor’s degree,

Aliabbas Akram oglu Madatov, researcher,

Erkin Nukhbaba oglu Shikhiev, Cand. for a doctor’s degree

Institute of Oil and Gas of ANAS

9, F. Amirov str., Baku, AZ1000, Republic of Azerbaijan

Kamran Piri oglu Gulizade, cand. for a master’s degree

Azerbaijan State University of Oil and Industry

20, Azadlyg prosp., Baku, AZ1010, Republic of Azerbaijan,

e-mail: igorbaku@yandex.ru

The article proposes the methods that provide rocks characteristics evaluation both by core and slime using geological-geophysical information, and according to geological-technological research data during wells drilling. An analysis of the work performed shows that it is now possible to increase the level of decisions-making by using a complex geological-geophysical and technological information. When the information about a drilled well cross-section is missing or its volume is limited, then the data, obtained during geological-technological researches during drilling that have become widespread in the world practice in recent years make it possible to solve a number of tasks during drilling.

One of the main tasks of well-drillers is to prevent loss of stability. Particular attention is paid to the choice of drilling fluids, selection of casing strings and other working procedures during wells drilling in order to minimize these costly problems. The analysis of the current state carried out in the article made it possible to establish the main points that require attention in further researches and to focus on obtaining and using of complex information in order to choose the proper rock-cutting tool, operational parameters, provision of the wellbore stability and control of drilling fluids composition and properties.

Keywords: mechanical characteristics of rocks; complications; bits; regime parameters; decision-making; uncertainty.

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UDC 622.691.4.054(1-21ГС) DOI: 10.33285/1999-6934-2019-3(111)-60-71

APPROBATION OF THE METHODOLOGICAL APPROACH
OF LOW-COST TECHNICAL RE-EQUIPMENT OF GAS-DISTRIBUTIVE
STATIONS (p. 60)

Oleg Igorevich Rebrov, Head of the Department of Technical-Economic Substantiation of Gas Transportation System Development,

Lyubov Sergeevna Kleimenova, Leading specialist of the Department of Technical-Economic Substantiation of Gas Transportation System Development

JSC "Gazprom Promgaz"

23, Vokzalnaya str., Vidnoe, 142702, Moscow region, Russian Federation,

e-mail: o.rebrov@promgaz.gazprom.ru, l.kleimenova@promgaz.gazprom.ru

Often, many regions of the Russian Federation face the problem of reaching the limit loads by gas supply facilities, making additional gas deliveries impossible. The presence of "free" capacities of gas supply facilities is the basis for the timely implementation of investment projects, and, in most cases, investors (primarily to bring the project into operation as soon as possible) wish to minimize the time required to ensure their projects with the necessary energy sources, which, in its turn, causes the wish to receive gas from already existing gas supply facilities. However, the relatively quick connection of new consumers to the gas distribution network and to the gas supply system or an increase in gas supply during the development of the existing ones is not always possible. This requires provision of the production capacities’ available reserves in the area of the gas transmission system, including the availability of free capacity of key facilities – gas distribution stations (GDS). In the absence of free capacities, it is necessary to increase GDS capacity, in most cases implemented as part of a reconstruction project, which requires significant capital investments, time-consumption and is characterized by low payback and economic efficiency. However, there exists an alternative method – productivity increase by identification of GDS production capacities reserves by performing technological calculations using computer simulation methods followed by their further use in gas supply by a low-cost way. The paper presents the main provisions of the concept, an example of practical implementation, as well as technological and economic advantages of one of the most promising directions for the regional gas supply development – low-cost increase in production capacities of gas distribution stations in the framework of technical re-equipment.

Keywords: gas supply; gas distribution station; production capacities reserves; technical re-equipment; computer modelling; low-cost activities.

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UDC 620.179.18 DOI: 10.33285/1999-6934-2019-3(111)-72-74

IN-LINE INSPECTION OF STRESS-STRAIN STATE OF OIL AND GAS PIPELINES
WITH A SCANNING DEVICE APPLYING METAL MAGNETIC MEMORY METHOD
(SD-ILI MMM) (p. 72)

Anatoly Aleksandrovich Dubov, Dr. tech. sci., General Director,

Aleksandr Anatolievich Dubov, Cand. of tech. sci., Deputy General Director

LLC "Energodiagnostika"

8, office XII, Yubileiny prosp., Reutov, 143965, Moscow region, Russian Federation,

e-mail: mail@energodiagnostika.ru

Anton Victorovich Ostanin, First Deputy General Director, Chief engineer,

Valery Nikolaevich Fadeev, Head of the Department of Pipeline Transport Control and Linear Facilities Maintenance

LLC "YaRGEO"

12/2, Zverev str., Nadym, 629730, Yamal-Nenets autonomous okrug, Russian Federation,

e-mail: yargeo@yargeo.novatek.ru

Sergei Borisovich Kuzmin, General Director,

Sergei Nikolaevich Lukin, Leading specialist

LLC "ECC "Prombezopasnost"

93a, office 1, Mir prosp., Noyabrsk, 629810, Yamal-Nenets autonomous okrug, Russian Federation,

e-mail: ikcpb@ikcpb.com

Stress-strain state (SSS) control in order to identify local stress concentration zones, being the main sources of developing damages, is currently the missing link in in-line inspection (ILI). The fundamental difference from magnetic flaw detectors with artificial magnetization of pipes is the use of a scanning device for ILI by the metal magnetic memory (MMM) method that uses the natural magnetization formed during the pipes manufacture and work.

The article discusses the first experience of using a scanning device by the MMM method for SSS control during the in-line inspection of Ø377×10 mm oil pipeline of LLC "YaRGEO".

Keywords: in-line inspection; flaw detector; stress concentration zone; magnetic memory of metal; stress-strain state; non-destructive testing; scanning device.

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"NEFTEGAZ" IS THE MAIN PLATFORM FOR THE INNOVATIVE DEVELOPMENT
OF THE FUEL AND ENERGY INDUSTRY IN THE COUNTRY
(the results of "NEFTEGAZ-2019" International exhibition)
(p. 75)

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NATIONAL UNIVERSITY OF OIL AND GAS "GUBKIN UNIVERSITY"

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