Equipment and Technologies for Oil and Gas Complex

ANALYSIS OF NORMATIVE DOCUMENTATION ON DRILL PIPES
AND ELEMENTS OF DRILL-PIPE STRINGS WITHIN THE FRAMEWORK
OF IMPORT SUBSTITUTION PROGRAM AND COMPETITIVE
PRODUCTS MANUFACTURE (p. 5)

Tatiana Alexeevna Guseva, Cand. of tech. sci., assistant professor,

Vsevolod Yakovlevich Kershenbaum, Dr. of tech. sci., Professor, Head of the Department,

Maxim Petrovich Polikarpov, Cand. of tech. sci., assistant professor

Gubkin Russian State University of Oil and Gas (National Research University)

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

e-mail: tguseva14@yandex.ru, tkaning@yandex.ru, m_pol@rambler.ru

This article analyzes the current state regarding the requirements of international, regional, national and corporate standards on drill pipes, including reinforced and square kellies, in the context of ensuring the competitiveness of domestic pipe products. The article provides a comparative analysis of the requirements of the Russian national standards on steel pipes for drilling, including GOST 32696 and GOST R 50278, with the provisions of the international standard ISO 11961 and industry specification API 5DP. Besides, the domestic corporate practice of standardization was considered on the example of the technical specifications issued by the leading enterprises in Russia.

Keywords: competitiveness; steel pipes; drill pipes; reinforced drill pipes; square kellies; documents on standardization.

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UDC 622.276.53.054.22 DOI: 10.30713/1999-6934-2018-6-11-17

ON AN ENCLOSED-DESIGN OF CHAIN DRIVES FOR SUCKER-ROD PUMPING UNITS
USED IN LOW AND MEDIUM FLOW-RATE WELLS (p. 11)

Vladimir Mikhailovich Valovsky, Dr. of tech. sci., Adviser on Reservoir Engineering Technologies,

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

Ilgizyar Gaptnurovich Shamsutdinov, Head of Techniques Development Sector Well Operation and Workover Department,

Nataliya Viktorovna Fedoseenko, Leading Engineer, Well Operation and Workover Department

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

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

e-mail: valovsky@tatnipi.ru, dobicha@tatnipu.ru

The paper presents a novel design of an enclosed-type chain drive for a sucker-rod pumping unit, used in low and medium flow-rate wells. The novel design provides for protection of the pull chain and the interacting chain sprockets as well as lubricating oil, against the destructive action of ambient mechanical impurities, to ensure improved performance and increased longevity of the chain drive. A new engineering solution to decrease consumption of lubricating oil is offered. In its lower part, a balance weight provides for two symmetrized buckets on each side of the closed chain with openings in the side walls facing the chain. When the balance weight is in its lowermost position, the buckets immerse into the lube tank. The buckets’ sizes provide for oil draining through the openings during the balance weight reciprocal stroke cycle. The chain drive body is enclosed; furthermore, it is equipped with a system to provide for an excess air pressure to prevent ingress of dust and sand from outside. These improved technical features make the enclosed-design chain drive a good candidate for climatic regions with frequent sand and dust storms.

Keywords: chain drive design; enclosed-design body; chain lubricating system; buckets on balance weight; lube oil draining; protection against mechanical impurities; excess air pressure system; sand storm; increased longevity.

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UDC 622.276.53.054.22 DOI: 10.30713/1999-6934-2018-6-18-22

CALCULATION METHODOLOGY OF WELLHEAD COUNTERBALANCE WEIGHT
OF PUMPING UNITS’ COMBINED ROTARY-WELLHEAD COUNTERBALANCING
(p. 18)

Kamil Rakhmatullovich Urazakov, Dr. of tech. sci., Professor,

Victor Vladimirovich Belozerov, postgraduate student

Ufa State Petroleum Technological University

1, Kosmonavtov str., Ufa, 450062, Republic of Bashkortostan, Russian Federation

Denis Vyacheslavovich Zhuravlev, General Director

LLC "SamaraNIPIneft"

18, Vilonovskaya str., Samara, 443010, Russian Federation

Filyus Fanizovich Davletshin, master’s student

Bashkir State University

32, Zaki Validi str., Ufa, 450076, Republic of Bashkortostan, Russian Federation,

e-mail: Felix8047@mail.ru

A significant part of the producing wells, operated by the sucker-rod pumping installations, is equipped with balancing beam-pumping units (BPU). The counterbalancing of balancing BPU is mainly realized by a mechanical method, i.e. by special counterweights (counterbalances). The existing technologies of pumping units counterbalancing cause considerable fatigue wear of above-ground equipment components due to high loads on BPU actuator (drive). This leads to premature equipment failure and increased power consumption.

The listed facts make it necessary to look for innovative methods of pumping units counterbalancing, including systems with a combined rotor-wellhead counterbalancing. Additional BPU counterbalancing in such systems is achieved using a wellhead counterweight, that provides a directed vertically-upward force, caused by its weight and applied through a flexible rod directly to the wellhead rod. The wellhead counterweight installation makes it possible to partially compensate the constant load on the balancer head, caused by the weight of the rod string in the liquid, thus reducing the load on the balancer head, its support, and thereby to prevent wear of BPU components.

The article presents the results of research of dynamic processes occurring during operation of a sucker-rod pumping unit with a wellhead counterbalancing system. The influence downhole equipment operating conditions on the estimated weight of a wellhead counterbalance meeting the criteria for minimizing the loads on the beam-pumping unit assemblies and ensuring the stable operation of the balance beam is considered. It is shown that equipping the well with an additional wellhead counterbalancing system significantly reduces the load on the balancer head, thus contributing to an increase of the uniform load of BPU assemblies and the pumping power and to a reduction of the electricity consumption.

Keywords: wellhead counterbalance; counterbalancing; beam-pumping unit; dynamic load; combined rotary-wellhead counterbalancing system.

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UDC 621.791:620.18 DOI: 10.30713/1999-6934-2018-6-23-27

TO THE QUESTION OF CONSTRUCTIVE-TECHNOLOGICAL DESIGN
OF SOLDERED JOINTS OF FITTINGS CONE INSERTS
IN HIGH PRESSURE VESSELS (p. 23)

Valery Vladimirovich Erofeev, Dr. of tech. sci., Professor,

Robert Garafievich Sharafiev, Dr. of tech. sci., Professor,

Leonid Vladimirovich Makarov,

Azat Akhatovich Almukhametov, Cand. of tech. sci., assistant professor,

Ilgis Rustambekovich Kireev, Cand. of chemical sci.,

Vagizyan Minnigaleevich Yakupov, assistant professor

Ufa State Petroleum Technological University

1, Kosmonavtov str., Ufa, 450062, Republic of Bashkortostan, Russian Federation,

e-mail: ervv52@mail.ru, sharafiev47@mail.ru, leonid.ufa@mail.ru, aza73@mail.ru

Sergey Valerievich Erofeev, Cand. of tech. sci., Director

LLC "Promstandart"

8, office 310, Yablochkin str., Chelyabinsk , 454048, Russian Federation,

e-mail: ervv52@mail.ru

The paper discusses one of the most effective methods of obtaining permanent joints of the fittings in a high-pressure vessel using soldering. The main difficulties of the method implementation when manufacturing soldered joints nipple nodes are associated with the lack of calculation base during their constructive-technological design and determination of optimal parameters of soldered joints, that ensure their equal strength to the base metal of pressure vessels and cone insert. In the framework of the conducted researches, the interrelation of the main geometric and structural parameters of soldered joints, pressure vessels and pipe inserts, was proved and, based on the researches results, their optimal values, providing for equal strength of soldered joints were determined with account of the specifics of their loading in the pressure vessels composition. The theoretical approach to determine the geometric parameters of the fittings with account of the torque arising at the stage of equipment installation at the nozzle (pressure gauge, safety valve, etc.) was also proposed.

The proposed calculation dependencies can be used at the stage of constructive-technological design of soldered joints of high pressure vessels nipple nodes.

Keywords: soldering; conical insert of fittings; pressure vessels; constructive-technological engineering; strength balance of soldered joints.

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UDC 006:622.276 DOI: 10.30713/1999-6934-2018-6-28-31

FORMATION OF RATIONAL BALANCE OF STANDARD REQUIREMENTS
TO OIL AND GAS EQUIPMENT COMPONENTS (p. 28)

Vitaly Leonidovich Skripka, Cand. of tech. sci., assistant professor,

Anastasiya Sergeevna Evich, engineer

Gubkin Russian State University of Oil and Gas (National Research University)

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

e-mail: com@gubkin.ru

The article assesses the efficiency of a set of standardization documents focused on the changing requirements to reliability of complex oil and gas equipment. The article also proposes the approach to development of the relevant documents on standardization based on the hierarchical that by means of the system analysis of a set of major factors will provide reaching of the set quality level at all stages of the equipment operational life-time. The structure of the standards documentation complex, applied to each stage, is presented with consideration of its impact on the object of standardization, thus making it possible to base on set of documents on standardization depending on the available production, organizational and financial capabilities. The model of the process of standards requirements formation to the object of standardization and definition of the optimum set of separate parameters to provide the required characteristics of oil and gas equipment with account of the numerous possible circumstances influencing it, is presented. The prospects of the effective combination of standard requirements, that ensure reaching the desirable integrated properties of the equipment in general, are shown.

Keywords: rational balance; standard requirements; oil and gas equipment; import substitution; documents on standardization; efficiency assessment; rationing process model; mathematical programming.

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UDC 622.276.53.001.57 DOI: 10.30713/1999-6934-2018-6-32-37

METHOD OF CALCULATION AND SELECTION OF DESIGNS INSTALLATIONS
OF PCP PUMPS WITH SUBMERSIBLE AND SURFACE DRIVE
FOR OIL PRODUCTION (p. 32)

Maxim Grigorievich Volkov¹, Cand. of tech. sci., Deputy-General Director (technological development and innovations),

Ruzil Sagyjtovich Halfin^{1, 3}, Chief of the Managerial Board, assistant professor of the Department "Digital Technologies in the development of oil and gas fields",

Alexander Robertovich Brot¹, Cand. of tech. sci., chief specialist,

Andrey Sergeevich Topolnikov², Cand. of phys.-math. sci., an expert,

Bulat Maratovich Latipov², Cand. of tech. sci., chief specialist,

Eduard Olegovych Timashev³, Cand. of tech. sci., doctoral candidate

¹LLC "RN–UfaNIPIneft"

3, bld. 1, Bekhterev str., Ufa, 450103, Republic of Bashkortostan, Russian Federation,

e-mail: m_volkov@ufanipi.ru, KhalfinRS@ufanipi.ru, BrotAR@ufanipi.ru

²LLC "BashNIPIneft"

86/1, Lenin str., Ufa, 450006, Republic of Bashkortostan, Russian Federation,

e-mail: TopolnikovAS@ufanipi.ru, LatypovBM@ufanipi.ru

³Federal State Budgetary Educational Institution of Higher Education "Ufa State Petroleum Technological University"

1, Kosmonavtov str., Ufa, 450062, Republic of Bashkortostan, Russian Federation,

e-mail: eotimashev@msk.rn.ru, KhalfinRS@ufanipi.ru

The description of a complex method of calculation and selection of designs of PCP pumps with submersible and surface drive for oil production, based on mathematical models of the individual elements of the installation and the well. A feature of the developed technique is a detailed account of the physical effects arising from the operation of individual elements of the installation (pump, rod, cable line, submersible and surface drives, elastomer), modeling of the flow of gas-liquid flow in the elements of the well (tubing, casing, annular space), the formalization of technical constraints in the selection of brands and sizes of equipment, possibility to select equipment designs for target operating parameters and calculate them on the basis of existing equipment design. The results of calculations on the developed technique demonstrate satisfactory agreement with the field data and the data of calculations performed in third-party commercial software.

Keywords: PCP pump; elastomer; sucker rods; submersible motor; surface drive.

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UDC 622.279.23/.4:622.691.1 DOI: 10.30713/1999-6934-2018-6-38-43

DEVELOPMENT OF ENERGY EFFICIENT TECHNICAL DECISIONS
ON THE OPERATION OF BOOSTER COMPRESSOR STATIONS
IN URENGOY FIELD (p. 38)

Dmitry Vladimirovich Dikamov, chief engineer, First Deputy-General Director,

Roman Romanovich Shepityak, Head of the Technical Department,

Pavel Nikolaevich Laryov, Head of the Engineering-Technical Center – a branch of LLC "Gazprom dobycha Urengoy",

Evgeny Viktorovich Nemykin, Head of the Department of Technological Monitoring of perspective projects, Engineering-Technical Center – a branch of LLC "Gazprom dobycha Urengoy",

Sergey Alexandrovich Serebryansky, 1^st category engineer of the Department of Technological Monitoring of perspective projects, Engineering-Technical Center – a branch of LLC "Gazprom dobycha Urengoy"

LLC "Gazprom dobycha Urengoy"

8, Zheleznodorozhnaya str., Novy Urengoy, 629307, Yamalo-Nenets autonomous territory, Russian Federation,

e-mail: d.v.dikamov@gd-urengoy.gazprom.ru, r.r.shepityak@gd-urengoy.gazprom.ru,
p.n.larev@gd-urengoy.gazprom.ru, e.v.nemykin@gd-urengoy.gazprom.ru,
s.a.serebryanskiy@gd-urengoy.gazprom.ru

The article discusses the main problems of ensuring energy-efficient operation of the booster compressor stations of the Cenomanian and Valanginian fields in Urengoy field. Maintenance of reliable operation of a booster station is based on a set of measures to improve the equipment of a booster compressor station and to implement various schemes for joint operation of fields and gas reservoir preparation is considered. Some specific features of preparation of hydrocarbon products transportation by using the unit of complex preparation of gas (UCPG-2V) with the introduction of gas two-stage cooling by de-ethanization with unstable condensate are described.

Keywords: Cenomanian and Valanginian deposits; declining production; energy efficient operation; unit of complex preparation of gas (UCPG-2V); booster compressor station; compressor; replaceable flow part; in-site networks; reconstruction; joint operation of fields.

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UDC 622.276.53.054.22 DOI: 10.30713/1999-6934-2018-6-44-47

RESTORATION OF A WORN-OUT DOWNHOLE SUCKER-ROD PUMP
BASED ON MACHINE AGING THEORY (p. 44)

Sevda Yakub kyzy Aliyeva, Cand. of tech. sci., assistant professor,

Ramiz Seifulla oglu Gurbanov, Dr. of tech. sci., Professor

Azerbaijan State University of Oil and Industry

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

e-mail: sevda.aliyeva.66@bk.ru, ramiz.gurbanov@yahoo.com

The authors of the article develop the scientific-practical grounds of the theory of downhole sucker-rod pumps aging. The main purpose of the article is to take measures of anticipation of downhole sucker-rod pumps aging. At the same time, the accepted measures have been accounted of and a graph has been plotted for the sucker-rod pumping units that can be repaired. It was determined that the worn-out pump can be subjected to repair for re-operation in the case when the thickness of the residual nitrogen layer in any section along the length of the downhole sucker-rod pumps would be more than e ≥ 50 micron.

Then, the pump availability coefficient is determined and the graph is plotted.

Keywords: sucker rod pump; theory of aging; nitrogen coating; acceptability criteria; major repairs.

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UDC 622.279+620.193/.197+620.197.3 DOI: 10.30713/1999-6934-2018-6-48-55

EXPERIENCE OF CORROSION INHIBITORS SELECTION TO PROTECT
THE OBJECTS OF THE SECOND SITE OF ACHIMOVSKY DEPOSITS
OF URENGOY OIL AND GAS-CONDENSATE FIELD
FROM CARBON ACID CORROSION (p. 48)

Alexander Yurievich Koryakin, General Director,

Dmitry Vladimirovich Dikamov, Cand. of tech. sci., chief engineer, the First Deputy of the General Director,

Igor Vasilievich Kolinchenko, Deputy-Chief of the Engineering-Technical Center,

Alexander Damirovich Yusupov, leading engineer of the Engineering-Technical Center

LLC "Gazprom dobycha Urengoy"

8, Zheleznodorozhnaya str., Novy Urengoy, 629300, Russian Federation,

e-mail: referent@gd-urengoy.gazprom.ru, a.s.koval@gd-urengoy.gazprom.ru,
i.v.kolinchenko@gd-urengoy.gazprom.ru, a.d.yusupov@gd-urengoy.gazprom.ru

Dmitry Nikolaevich Zapevalov, Cand. of tech. sci., Director of the Center of construction technologies, repair and corrosion protection,

Ruslan Kizitovich Vagapov, Cand. of chemical sci., Head of Laboratory

LLC "Gazprom VNIIGAZ"

15, bld. 1, Proektiruemy proezd № 5537, Razvilka poselok, 142717, Leninsky district, Moscow region, Russian Federation,

e-mail: D_Zapevalov@vniigaz.gazprom.ru, R_Vagapov@vniigaz.gazprom.ru

The article discusses the problem of carbon dioxide corrosion of the gas collection pipelines system at the objects of LLC "Gazprom dobycha Urengoy". The main factors that maximally influence the processes of local carbon dioxide corrosion in the conditions of the second section of Achimovsky deposits of Urengoy oil and gas-condensate field. The results of laboratory and autoclave tests were used to evaluate the corrosion aggressiveness of aquatic environments are described. The results of laboratory and autoclave tests, aimed at determining the protective and technological properties, were used for selection of the most effective corrosion inhibitor for the conditions of the second site Achimovsky deposits of Urengoy oil and gas-condensate field. The results of field tests of the selected corrosion inhibitor under realistic conditions, which confirmed its high protective properties, namely, corrosion rate was significantly lower than the threshold value of 0,1 mm/year. The mode of the inhibitor supply to the pipelines of the gas collection system is determined – constant dosing. A set of works on the selection and implementation of inhibitor protection, given in the article, provided effective protection against carbon dioxide acid corrosion of Achimovsky deposits of Urengoy oil and gas condensate field.

Keywords: Urengoy oil and gas condensate field; Achimovsky deposits; carbon dioxide acid corrosion; carbon dioxide corrosion; corrosion inhibitor; corrosion rate; protective effectiveness of a corrosion inhibitor; gas collection system.

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UDC 622.276.43:622.276.66 DOI: 10.30713/1999-6934-2018-6-56-62

A COMPREHENSIVE APPROACH TO OPTIMIZATION
OF RESERVOIRS PRESSURE MAINTENANCE SYSTEM
OF ACHIMOV DEPOSITS (p. 56)

Alfiya Albertovna Gilmiyanova, leading specialist,

Alexey Sergeevich Kardopoltsev, leading specialist,

Aidar Radusovich Garipov, leading specialist,

Artem Alexandrovich Mironenko, chief engineer of the project

LLC "RN–UfaNIPIneft"

3, bld. 1, Bekhterev str., Ufa, 450103, Republic of Bashkortostan, Russian Federation

e-mail: GilmiyanovaAA@ufanipi.ru KardopoltsevAS@ufanipi.ru, GaripovAR-ufa@ufanipi.ru, MironenkoAA@ufanipi.ru

Alexey Andreevich Maximov, Deputy-Head of the Department

LLC "RN–Yuganskneftegaz"

26, Lenin str., Nefteyugansk, 628309, Khanty-Mansi autonomous territory, Russian Federation,

e-mail: MaximovAA@ung.rosneft.ru

The process of a waterflooding design to maintain a reservoir pressure is one of the most important technical-economical problems to be solved at the stage of development of a technological scheme or a field project. Despite the fact, that the system of a reservoir pressure maintenance is generally an integral part of oilfields development, when producing oil from low-permeable reservoirs using the waterflooding systems in conditions of auto-hydraulic fracturing there occurs some problems, such as:

– premature waterflooding of producing wells;

– oil-gas-water demonstrations (OGWD) in the non-targeted intervals during sidetracks drilling (STD);

– reservoir pressure decrease in the neighboring producing wells as a result of inefficient injection of water.

The above-said facts lead to an increase of the allowable value of bottom hole pressure, an increase of the operational costs on an object development due to the inefficient water injection, OGWD risk and accidents.

The authors of the paper propose application of a complex approach to optimize a reservoir pressure maintenance system.

Keywords: reservoir pressure maintenance system; auto-fracturing; hydraulic fracture; OGWD; sidetrack drilling.

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UDC 622.691.4.004.14 DOI: 10.30713/1999-6934-2018-6-63-66

ANALYSIS OF NON-DESIGN LOADS AND ACTIONS
ON OBJECTS OF THE OIL AND GAS INDUSTRY OPERATING
IN DIFFICULT ENGINEERING-GEOLOGICAL CONDITIONS (p. 63)

Igor Alexandrovich Goldzon, assistant of the Department of Thermodynamics and Heat Engines

Gubkin Russian State University of Oil and Gas (National Research University)

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: goldzon.ia@yandex.ru

The inevitability of location of fuel and energy complex facilities in areas characterized by complex engineering and geological conditions dictates the need to develop optimal approaches to ensure the reliability and safety of operation of such facilities. This is especially important in the areas of active geological processes, when the equipment and pipelines are affected by non-design kinematic loads, the localization zone and the value of which are largely random factors. Experience of practical operation shows that ensuring the reliability of operation of such facilities can be organized on the basis of control of the stress-strain state (SSS) of such facilities. The article presents the results of the experimental work performed by the authors, due to which the value of non-project kinematic loads on a real object operated in complex engineering-geological conditions, as well as the intensity of their changes. According to the results of the study, it is concluded that for some objects the periodic assessment of the VAT parameters is uninformative, since their change is determined by the influence of random factors. For such facilities, it is advisable to organize a permanent monitoring of VAT during operation, in some cases, supplemented by monitoring of the flow of dangerous geological processes in the soil.

Keywords: reliability; equipment; pipeline; stress-strain state; dangerous geological processes; monitoring.

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UDC 622.692.4.004.67 DOI: 10.30713/1999-6934-2018-6-67-72

ANALYSIS OF MODERN TRENDS
OF REPAIR-TECHNICAL AND DIAGNOSTIC SERVICES DEVELOPMENT
OF OIL AND GAS PRODUCTION COMPANIES (p. 67)

Alexey Petrovich Zavyalov, Cand. of tech. sci., Chief process engineer of ITC "Orgtechdiagnostika", assistant professor

Gubkin Russian State University of Oil and Gas (National Research University)

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation

JSC "Gazprom Orgenergogaz"

11, Luganskaya str., Moscow, 115304, Russian Federation,

e-mail: zavyalovap@yandex.ru

The gradual aging of the fixed assets of the companies, engaged in the fuel-energy complex leads to an outpacing increase in the servicing and repair costs to maintain a high level of reliability of the equipment, thus leading to an overall increase of the companies’ operational costs. In these conditions, the actual direction of the companies’ technical policy will be the improvement of repair-technical maintenance of the equipment and pipelines in order to ensure a high level of reliability at an optimal level of costs. The article analyzes the current trends of improving equipment and pipelines’ repair-technical servicing by oil and gas production companies. It is shown that introduction of modern repair and maintenance systems enhances the technical diagnosing role, which becomes an important instrument for substantiating management decisions-making regarding the equipment operation. Herewith, a change in the requirements to the system of hazardous facilities diagnostic servicing necessitates its improvement, harmonization with management decision-making processes within the framework of the repair-technical servicing.

Keywords: equipment; pipeline; reliability; repair; diagnostics; information system.

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UDC 622.691.4+550.837.21 DOI: 10.30713/1999-6934-2018-6-73-80

CRITERIA FOR ASSESSING THE PREDICTION OF THE SUDDEN DANGER
OF SOILS CATASTROPHIC ACTIVATION IN THE NEAR-PIPE SPACE (p. 73)

Mikhail Mikhaylovich Zaderigolova, Cand. of tech. sci., General Director

LLC "ALTUMGEO"

102, bld. 26, apartment 26, Mir prosp., Moscow, 129626, Russian Federation

Alexey Sergeevich Lopatin, Dr. of tech. sci., Professor of the Department of Thermodynamics and Heat Engines

Gubkin Russian State University of Oil and Gas (National Research University)

65, bld. 1, Leninsky prosp., Moscow, 119991, Russian Federation,

e-mail: lopatin.a@gubkin.ru

Based on the theoretical and experimental researches, practical experience, analysis of theoretical work of scientists and specialists involved in ensuring the geodynamic safety, the criteria for a quantitative assessment of the prediction of dangerous geodynamic soils activations are proposed. The use of radio-wave technology for diagnosing the pipe-soil system and the proposed criteria allows more quickly making responsible managerial decisions, aimed at eliminating the possibility of accidents of main gas pipelines at the early stages of the development of dangerous natural and man-made processes that cannot be achieved by the existing methods of geotechnical monitoring, such as geodesy, IV-2 inserts, ultrasound, magnetometry, aerospace, optical fiber, etc.

Keywords: monitoring; hazardous geological processes; security; main gas pipeline; radio-wave method; stress-strain state of soils.

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