ISSN 1999-6934

Scientific-technical journal

EQUIPMENT AND TECHNOLOGIES

FOR OIL AND GAS COMPLEX

                                                                                                       published since 2001

April 2018                                              ¹ 2                                   6 issues per year

 

CONTENÒS

 

Lachkov A.G. Publishing activities of JSC "VNIIOENG" – 50 years (p. 5‑7)

 

MACHINERY AND EQUIPMENT

 

Kershenbaum V.Ya., Guseva T.A., Panteleev A.S. The problems of import substitution from the perspective of the competitiveness of oil and gas equipment (p. 8‑16)

 

Bogomolov R.M., Serikov D.Yu., Grinev A.M., Dedov N.I. Drilling of additional sidetracks by poly-crystalline diamond cutter (PDC) bits (p. 17‑20)

 

Yasashin V.A., Kobzeva E.V., Martynov S.N. A methodology of certification tests of a disk choke revolving gate valve. A comparison of domestic and foreign normative-technical documentation on valves (p. 21‑26)

 

Degovtsov A.V., Ivanovsky V.N., Krivenkov S.V., Kuznetsov I.V., Lavrinenko A.A., Mukhametshin A.R., Sabirov A.A. Analysis of the causes of fatigue failures of the ESP units shafts (p. 27‑33)

 

Omelyanyuk M.V., Pakhlyan I.A. Cleaning of systems of cooling compressor and power cylinders of gas-motor-compressors (p. 34‑38)

 

Milshtein L.M. Determination of Venturi nozzles dimentions of pulsation bottles installed in front of input oil and gas separators (p. 39‑43)

 

Abdyukova R.Ya. Design parameters influence on the valves operation of drilling piston pumps (p. 44‑50)

 

Gareev A.A. Scaling in a centrifugal pump as a result of boiling (p. 51‑56)

 

Khabibullin M.Ya. Investigation of the influence of the mode parameters of work of the centrifugal submersible pump on its reliability (p. 57‑59)

 

DEVELOPMENT OF OIL AND GAS WELLS

 

Koneva I.A., Rusmilenko V.E. Development of hard-to-recover oil reserves: technical and economic aspects (p. 60‑65)

 

NEW METHODS AND TECHNOLOGIES

 

Dorfman M.B., Tarakanov V.M. The study of the permeability restoration of the reservoir bottom-hole zone after its treatment by polymer insulating agents (p. 66‑69)

 

MATERIALS AND REAGENTS

 

Zhirkeev A.S., Tabashnikov R.A., Sakhapova A.K., Khasanova D.K. Use of inorganic cementing agents when repairing oil production wells (p. 70‑74)

 

Mamedov K.A. A new composition for protection of tubing threaded connections (p. 75‑77)

 

GEOLOGICAL AND GEOPHYSICAL STUDIES AND DEVICES

 

Tishkov A.A., Lymar I.V., Khodkov E.N., Tsagelnik A.A., Trus M.V. Study of galit (salt rocks) desalination processes in the rock-collectors of Novo-Berezinskoe oil field of the Republic of Belarus (p. 78‑85)

 

 

Information on the articles

 

UDC 622.276

 

PUBLISHING ACTIVITIES OF JSC "VNIIOENG" – 50 YEARS (p. 5)

 

Alexander Grigorievich Lachkov, General Director

 

JSC "VNIIOENG"

14, bld. 2, Nametkin str., Moscow, 117420, Russian Federation,

e-mail: vniioeng@mcn.ru

 

The article presents information about the publishing activity of JSC "VNIIOENG", one of the oldest research institutes of the oil and gas industry. For many years the Institute has been engaged in publishing activities, produces seven scientific and technical journals. The possibility of creating a joint information platform with Gubkin Russian State University of Oil and Gas (NIU) on the basis of VNIIOENG magazines and expanding cooperation with other organizations is considered.

 

Keywords: scientific and technical journals; the List of HAC; database Russian Science Citation Index and Chemical Abstracts; Digital Object Identifier (DOI); Gubkin Russian State University of Oil and Gas (National Research University); oil and gas companies.

 

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UDC 622.245.73          DOI: 10.30713/1999-6934-2018-2-8-16

 

THE PROBLEMS OF IMPORT SUBSTITUTION FROM THE PERSPECTIVE
OF THE COMPETITIVENESS OF OIL AND GAS EQUIPMENT (p.8)

 

Vsevolod Yakovlevich Kershenbaum,

Tatyana Alekseevna Guseva,

Alexander Sergeevich Panteleev

 

Gubkin Russian State University of Oil and Gas (NRU)

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

e-mail: tkaning@yandex.ru, tguseva14@yandex.ru, aleksandr.panteleew@yandex.ru

 

This article analyzes the current state of the projects concerning the state import substitution program, studied the problems of this issue, and identifies the obstacles that arise when implementing projects. The influence of the documents of the national standardization system in the context of increasing the competitiveness of domestic equipment and technologies of oil and gas sector was considered separately. An algorithm for improving technical standards for the import substitution object, considered in the article on the example of the critical element for drilling – blowout preventer equipment (BOP), is proposed. The article analyzes the competitive advantages of the imported BOP, compares the foreign and Russian normative databases, and determines the level of harmonization of the documents. In conclusion, the principles of integrated standardization are provided, which ensure the creation of competitive domestic products.

 

Keywords: import substitution; competitiveness; blowout preventer equipment; standardization documents; integrated standardization.

 

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UDC 622.24          DOI: 10.30713/1999-6934-2018-2-17-20

 

DRILLING OF ADDITIONAL SIDETRACKS
BY POLY-CRYSTALLINE DIAMOND CUTTER (PDC) BITS (p. 17)

 

Rodion Mikhailovich Bogomolov1, 2,

Dmitry Yurievich Serikov3,

Alexey Mikhailovich Grinev1,

Nikolay Ivanovich Dedov2

 

¹ SC "Volgaburmash"

1, Groznenskaya str., Samara, Sotsgorod poselok, 443004, Russian Federation

 

² Samara State Technical University

244, Molodogvardeyskaya str., Samara, 443100, Russian Federation

 

³ Gubkin Russian State University of Oil and Gas (NRU)

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

e-mail: serrico@rambler.ru

 

The article presents the results of the researches carried out to develop the design of poly-crystalline diamond cutter (PDC) bits of small diameter, intended for drilling of additional sidetracks of horizontal wells. Recommendations on the development of fundamentally new bits with self-screwing effect, that compensates the lack of the axial load from the weight of a reduced-diameter drill string, caused by the dimensions of the casing string inner diameter, are submitted. This weight, as a rule, is insufficient to destroy the rock at the well bottom and to intensify the work of the PDC bit.

 

Keywords: horizontal lateral well bores; holes-windows in the casing string; sidetrack entrance; rock-destroying diamond cutters (RDC); drill pipes; drilled horizons; drill bit body; vibration during drilling; effect of the bit self-drilling.

 

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UDC 622.692:621.646.5          DOI: 10.30713/1999-6934-2018-2-21-26

 

A METHODOLOGY OF CERTIFICATION TESTS
OF A DISK CHOKE REVOLVING GATE VALVE. A COMPARISON
OF DOMESTIC AND FOREIGN NORMATIVE-TECHNICAL DOCUMENTATION
ON VALVES (p. 21)

 

Vitaly Anatolievich Yasashin,

Elina Vladimirovna Kobzeva

 

Gubkin Russian State University of Oil and Gas (NRU)

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

e-mail: yasashin@rambler.ru, kobzeva17@yandex.ru

 

Sergey Nikolaevich Martynov

 

CJSC "Factory of Experimental Machinery"

13, Ostapovsky proezd, Moscow, 109316, Russian Federation,

e-mail: ZAOZEM@mail.ru

 

It is confirmed that shut-off and control valves play an extremely important role in production as well as transportation and storage systems of oil, oil products and gas, thus, ensuring the reliability of these systems in all operating modes.

A constructive scheme of the disk choke revolving gate valve (DCRGV) is presented as an object of shut-off and control valves in the system of production, transportation and storage of oil and oil products.

The considered design features and operating principle of DCRGV allowed to evaluate its advantages and disadvantages.

The requirements to domestic standards for disk choke revolving gate valves in the field of testing were analyzed during testing with consideration of bench test base, both pneumatic and hydraulic. Tests on the strength and parts material density, tightness in relation to the external environment; leak proof tests; performance tests are presented.

 The comparative analysis of the Russian Federation State Standards and API Spec 6D specification confirms the competitiveness of the domestic shut-off and regulating valves with the foreign ones.

 

Keywords: shut-off and control valves; quality; standard; testing; oil and gas equipment; certification.

 

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UDC 622.276.53.054.23:621.67-83          DOI: 10.30713/1999-6934-2018-2-27-33

 

ANALYSIS OF THE CAUSES OF FATIGUE FAILURES
OF THE ESP UNITS SHAFTS (p. 27)

 

Alexey Valentinovich Degovtsov,

Vladimir Nikolaevich Ivanovsky,

Sergey Valerievich Krivenkov,

Ivan Vladimirovich Kuznetsov,

Albert Azgarovich Sabirov

 

Gubkin Russian State University of Oil and Gas (NRU)

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

e-mail: degovtsov.aleksey@yandex.ru, ivanovskivn@yandex.ru, sv.krivenkov@gmail.com, kuznetsov.ivl@mail.ru, sabirov@gubkin.ru

 

Andrey Andreevich Lavrinenko,

Aidar Romilevich Mukhametshin

 

"Baker Hughes Russia – Caspian Region"

e-mail: lavrinenko.f@gmail.com, Aydar.Mukhametshin@bakerhughes.com

 

The main type of the equipment used to produce oil in the fields of the Western Siberia are the units of electric submersible pumps (ESP), which are operated in complicated conditions.

The article presents an analysis of this equipment failure due to the "breakage of the shaft" at one of the fields in the Western Siberia. The analysis of failures showed that the shafts failures occur in various ESP assemblies, it was found out that 44 % of the failures are of a plastic nature and 56 % of the failures are associated with the shafts fatigue failures.

Plastic breakage occurs during "seizures" while running or attempts to "shim" the pump, which are accompanied by a significant load increase on the shaft.

Shafts fatigue failures occur without loads increase in places of stresses significant concentrations. Analysis of the shafts breaks showed that the majority of fatigue failures (84 %) occur along the splines of the coupling joint.

The paper presents the data on ESPs premature failure associated with the shaft fatigue breakage.

The data analysis showed that the average operating time due to the shaft fatigue failure makes 74 days, herewith, more than half of ESPs (53 %) worked no more than 40 days. The distribution of failures due to the reasons that caused the fatigue breakdown of the ESP shaft is presented.

The high content of abrasive particles in the borehole products results in accelerated vibro-abrasive wear-out of the radial mating of the working organs, which results in vibrational loads and fatigue breakage of the shaft. The high free gas content contributes to the wear-out of the working parts in the presence of mechanical impurities as well as to the operation of the ESP units outside the pump operational characteristic.

Analysis of well logs showed that the intervals of the sections for the equipment location without a transverse bending are very limited, thus subsequently bringing the shaft fatigue failure.

The shaft fatigue failure can be caused by the variable loads from the torsional moment, what is observed in case of fluctuations of the output frequency of the supply voltage at the frequency control stations.

Frequency fluctuations of the supply voltage can be caused by various causes, in particular – the connection of powerful electric drives of the drilling rig to the supply network of wells with ESPs.

 

Keywords: units of electric submersible pumps (ESP); breakage of the shaft; plastic breakage; fatigue breakage.

 

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UDC 621.565.94          DOI: 10.30713/1999-6934-2018-2-34-38

 

CLEANING OF SYSTEMS OF COOLING COMPRESSOR AND POWER CYLINDERS
OF GAS-MOTOR-COMPRESSORS (p. 34)

 

Maxim Vitalevich Omelyanyuk,

Irina Albertovna Pakhlyan

 

Kuban State Technological University

127, Kirova str., Armavir, 352900, Krasnodar region, Russian Federation,

e-mail: m.omelyanyuk@mail.ru

 

In use gas-motor-compressors there is a formation of deposits of salts and products of corrosion in cooling systems of compressor or power cylinders, depending on gas-motor-compressor type. It leads to increase in resistance of a heat transfer, temperature increase of cooling liquid and, as a result, to breakdown of the expensive equipment. Analytical, and pilot studies as a result of which the technology of hydrodynamic cleaning of cooling systems of gas-distributing aggregates, piston air and oxygen compressors from various deposits is developed were carried out; experimental installation of cleaning of cooling systems of gas-motor-compressors and hydrodynamic kavitator are developed and made, their optimum design data are determined. Developed technology solutions and technical means were industrially approved at the Krasnodar underground gas storage of LLC Gazprom UGS and in Vuktylsky gas-field management (Republic Komi) of LLC Gazprom dobycha Krasnodar; allowed to recover a passport heat transfer, to ensure trouble-free operation of aggregates during the further.

 

Keywords: gas-motor-compressor; nozzles; hydrodynamic method; cavitation; cleaning; deposits; salts.

 

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UDC 622.276.8.05:655.622          DOI: 10.30713/1999-6934-2018-2-39-43

 

DETERMINATION OF VENTURI NOZZLES DIMENTIONS OF PULSATION BOTTLES
INSTALLED IN FRONT OF INPUT OIL AND GAS SEPARATORS (p. 39)

 

Leonid Markovich Milshtein

 

e-mail: mleonmark@gmail.com

 

The determination of all Venturi nozzles dimensions (VN) of pulsation bottles, being an important problem of oil and gas technology is considered. A method of Venturi nozzles calculation for all input oil and gas separators is developed. The main dimension of Venturi nozzles is the critical section diameter, which is selected by the flow rate of liquid and gas, intermediate between the minimum and the maximum ones: for oil and gas separators, the minimum diameter of VN critical section is determined by the liquid flow rate according to the technical specification (TS), the maximum diameter – by the liquid flow rate through pipe branches or pipelines of separators discharge lines with the speed of 4 m/s; the minimum and maximum diameters of oil and gas separators with water discharge are determined by liquid flow rates of the fluid according to TS, herewith, the gas rate in the critical section should be no more than 320 m/s.

 

Keywords: dimension; Venturi nozzle; pulsation bottle; methodology; calculation; separator; pipe branch; pipeline; diameter; critical section; speed; liquid; gas.

 

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UDC 622.276.53          DOI: 10.30713/1999-6934-2018-2-44-50

 

DESIGN PARAMETERS INFLUENCE ON THE VALVES OPERATION
OF DRILLING PISTON PUMPS (p. 44)

 

Rima Yavdatovna Abdyukova

 

Ufa State Petroleum Technical University, a branch in the city of Oktyabrsky

54a, Devonskaya str., Oktyabrsky, 452600, Republic of Bashkortostan, Russian Federation,

e-mail: abd_rima1968@mail.ru

 

A significant share of failures and the time spent on the repair work is accounted for drilling pumps. The working capacity of piston pumps is mainly determined by the details of their hydraulic part. Use of abrasive and aggressive working media at high pressure reduces the technical resource of pumps hydraulic parts. Valves are one of the important elements of pumps hydraulic part. Their work largely determines the degree of a pump construction perfection: the suction height, the magnitude of the volumetric efficiency and the feed rate, the dynamics of the pump unit operation. Therefore, the solution of the problems aimed at increasing the operational durability of parts of the pump hydraulic part, and, in particular, valves, is still very relevant today.

Goals and objectives

1. Analysis of operating conditions of drilling piston pumps and the reasons for their failure.

2. Evaluation of the efficiency of piston pumps’ valves constructions and analysis of their wear out.

The results of the analysis of the works carried out to improve the drilling pumps valves make it possible to conclude that the state of valves’ supporting metal surfaces can be influenced by construction parameters.

When studying the operational conditions characteristics and analyzing the process of drilling pumps valves wear-out, it should be noted that wear out is detected at the following areas:

– on the guiding surfaces;

– on supporting and landing surfaces;

– in sealing devices.

Resulting of the analysis of the works carried out to improve the valves of the drilling pumps, it is necessary to perform field testing of the proposed valves.

 

Keywords: piston valve wear out; piston pump valve; plate; saddle; sealing element.

 

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UDC 621.671          DOI: 10.30713/1999-6934-2018-2-51-56

 

SCALING IN A CENTRIFUGAL PUMP AS A RESULT OF BOILING (p. 51)

 

Adib Akhmetnabievich Gareev

 

JSC "Surgutneftegas"

12, Entuziastov str., Nizhnesortymsky poselok, 628447, Surgutsky district, Tyumen region, Khanty-Mansi Autonomous territory – Yugra, Russian Federation,

e-mail: adibg@mail.ru

 

The article is a continuation of the theoretical studies in the field of oil well exploitation and technology by low-productivity centrifugal pumps, which form the basis of the so-called "complicated fund".

For the first time, thermobaric operating conditions of an electric centrifugal pump in wells with low reservoir properties are considered. It is proved that the operation of a centrifugal unit in a well with a low inflow leads to a heating of the pump. Increasing the temperature of the pump results in the boiling of the formation water inside the pump and the beginning of salt deposition.

 

Keywords: operation of the electric centrifugal pump in oil wells of low productivity; heating of the centrifugal pump during operation in wells with low reservoir properties; deposition of salts in the ESP units due to the onset of boiling.

 

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UDC 622.276.53.054.23:621          DOI: 10.30713/1999-6934-2018-2-57-59

 

INVESTIGATION OF THE INFLUENCE OF THE MODE PARAMETERS OF WORK
OF THE CENTRIFUGAL SUBMERSIBLE PUMP ON ITS RELIABILITY (p. 57)

 

Marat Yakhievich Khabibullin

 

Ufa State Petroleum Technical University, a branch in the city of Oktyabrsky

54a, Devonskaya str., Oktyabrsky, 452600, Republic of Bashkortostan, Russian Federation,

å-mail: m-hab@mail.ru

 

The requirements for the form of the left branch of the theoretical and operating characteristics of submersible centrifugal pumps are provided for the supply of oil, which is lower than in the design mode. For this purpose, the possibilities of pump operation are considered when the impellers rise. As a result, it was revealed that the high slope of the characteristics of H(Q) at low feed rates is economically unprofitable. When the pump is operated for a long time under the conditions of an ascent of the impeller and a large gap between the lower sealing ring of the impeller and the coupled surface of the guide device, an auto oscillatory process can occur, resulting in rapid wear of the pump stage parts.

 

Keywords: ñentrifugal pump; characteristic; head; feed.

 

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UDC 622.276          DOI: 10.30713/1999-6934-2018-2-60-65

 

DEVELOPMENT OF HARD-TO-RECOVER OIL RESERVES:
TECHNICAL AND ECONOMIC ASPECTS (p. 60)

 

Irina Anatolievna Koneva,

Vyacheslav Ernstovich Rusmilenko

 

Tyumen Industrial University (TIU)

70, Melnikayte str., Tyumen, 625027, Russian Federation,

e-mail: konewa.irina@mail.ru, rusmilenko.slava@mail.ru

 

The urgency of the intensification of the development of hard-to-recover oil reserves (HTROR) is shown to ensure Russia's internal energy security and global energy security. The modern problems of the oil-gas-chemical industry, in particular, the depletion of oil deposits, low recovery rates, insufficient infrastructure, the lack of investments to implement the innovative methods of oil recovery enhancement and the high cost of geological exploration works are characterized. A generalization of definitions and classification approaches to HTROR was carried out for the first time. It is shown that the development of such reserves requires the introduction of innovative technologies, materials and equipment that are more expensive than the technologies applied in traditional oil production processes. It is determined that HTROR development stimulation currently lies in the establishment of a number of tax and export privileges. The insufficiency of these measures to stimulate the application of innovative technologies for HTROR development has been revealed. The directions of the technical-economic stimulation of HTROR extraction to be use in the formation of strategies and programs of development at the state level are shown.

 

Keywords: hard-to-recover oil reserves; classification; methods of oil recovery enhancement; oil recovery factor; geological exploration work; tax incentives; customs tariffs; stimulation.

 

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UDC 622.276.64          DOI: 10.30713/1999-6934-2018-2-66-69

 

THE STUDY OF THE PERMEABILITY RESTORATION
OF THE RESERVOIR BOTTOM-HOLE ZONE AFTER ITS TREATMENT
BY POLYMER INSULATING AGENTS (p. 66)

 

Mikhail Borisovich Dorfman,

Vyacheslav Mikhailovich Tarakanov

 

Northern (Arctic) Federal University named after M.V. Lomonosov (NARFU)

14, Severnaya Dvina Naberezhnaya, Arkhangelsk, 163000, Russian Federation,

e-mail: m.dorfman@narfu.ru, TSlavaM@yandex.ru

 

By now, the main part of oil fields in Russia is at the latest stage of their development or belongs to hardly recoverable reserves. This forces oil companies to actively use the methods of oil production enhancement. The method of treatment of a bottom-hole formation zone by acids is widely applied in practice. But, unfortunately, from time to time, this method fails to prove its positive results, since hydrocarbon deposits structure is not uniform and there are collectors with lower permeability, which are poorly treated. The article presents the results and analysis of the experiments carried out to restore reservoir productive characteristics after the control of the injectivity profile conformance during the acid treatment, in case of the use of pre-selective insulation of high-permeable intervals by polymer solutions. Graphical dependences of the solutions mobility on the filtration time through experimental samples modeling reservoir conditions are presented.

 

Keywords: acid treatment; polyacrylamide; control of the injectivity profile conformance; restoration of permeability; mobility of solutions.

 

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UDC 622.276.7:622.245.43          DOI: 10.30713/1999-6934-2018-2-70-74

 

USE OF INORGANIC CEMENTING AGENTS
WHEN REPAIRING OIL PRODUCTION WELLS (p. 70)

 

Alexander Sergeevich Zhirkeev,

Alfiya Kamilevna Sakhapova,

 

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

32, M. Jalil str., Bugulma, 423200, Republic of Tatarstan, Russian Federation,

e-mail: jirkeev@tatnipi.ru, ers119@tatnipi.ru

 

Roman Alexeevich Tabashnikov

 

LLC "TagraS-RemService"

2, Proizvodstvennaya str., Almetyevsk, 423450, Republic of Tatarstan, Russian Federation,

e-mail: tra@tagras.ru

 

Dilbarkhon Kelamedinovna Khasanova

 

LLC "NPC "Oil and Gas Technologies"

32, M. Jalil str., Bugulma, 423200, Republic of Tatarstan, Russian Federation,

e-mail: hasanova@tatnipi.ru

 

Depending on the heat treatment temperature, soft- and hard-burnt cementing materials are recognized. The former materials exhibit quick-setting properties, thus their use for well workover involves certain hazards associated with high emergency risks. The latter ones are characterized by slow setting rates, so hard-burnt waterless cement slurry will set only upon the contact with water in a shut-off interval.

Even minor content of water causes rapid setting of slow-burnt waterless cement slurry. Hard-burnt water-based cement slurry sets quickly when liquid glass is added; otherwise, cement setting time increases to 2–5 days. However, when planning workover operations with hard-burnt cements, false setting risks should be taken into consideration. False setting is a phenomenon of an abnormal (false) premature hardening of the suspension within a few minutes after mixing of the ground hard-burnt cement slurry with water. Remixing of the slurry exhibiting the signs of the false set can restore inherent flow properties of the slurry. In the light of the above-said, it is recommended that false-set tests be conducted with hard-burnt cement samples before making any purchase. Laboratory studies and field tests have proved applicability of hard-burn cement materials for well workover applications. In some cases, they can be applied as an alternative to conventional oil-well cements.

 

Keywords: inorganic cementing agents; hard-burnt cement; soft-burnt cement; hydrocarbon solution; oil-well cement; false set.

 

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UDC 620.193/.197          DOI: 10.30713/1999-6934-2018-2-75-77

 

A NEW COMPOSITION FOR PROTECTION
OF TUBING THREADED CONNECTIONS (p. 75)

 

Kamran Alimirza Mamedov

 

NIPI "Neftegaz" SOCAR

88a, Zardabi str., Baku, AZ1012, Republic of Azerbaijan,

e-mail: k.a.mammedov@gmail.com

 

The article is devoted to the corrosion protection of tubing threaded joints by plastic compositions based on locally produced materials. During the development of the plastic composition, bitumen of BNB 70/30 brand, soapstock, heavy pyrolysis resin, paraffin, and natural bitumen containing sand and clay as a filler were used. Indicators of flow temperature, adhesion and corrosion protective effect of the developed plastic composition are higher as compared with the other ones.

Commercial testing of the plastic composition was carried out at the production well 205 of the Gyuneshli field. The composition testing revealed its high lubricating, anticorrosive and sealing properties.

 

Keywords: oilfield equipment; tubing; oil producing well; plastic composition; corrosion; aggressiveness of the environment.

 

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UDC 622.276.1/.4:552.54          DOI: 10.30713/1999-6934-2018-2-78-85

 

STUDY OF GALIT (SALT ROCKS) DESALINATION PROCESSES
IN THE ROCK-COLLECTORS OF NOVO-BEREZINSKOE OIL FIELD
OF THE REPUBLIC OF BELARUS (p. 78)

 

Andrey Alexandrovich Tishkov,

Igor Vladimirovich Lymar,

Evgeniy Nikolaevich Khodkov,

Andrey Alexandrovich Tsagelnik,

Maxim Vasilievich Trus

 

Production association "Belorusneft"

15b, Knizhnaya str., Gomel, 246003, Republic of Belarus,

e-mail: a.tishkov1@beloil.by

 

The paper considers the results of dynamic studies of the desalinization technology of halit (rock salt) in the thermobaric conditions of Novo-Berezinskoe oil field of the Republic of Belarus. The experiments were carried out using the Autoflood-700 filtration unit from Vinci Technologies Company SA (France), which allows modeling the filtration processes of various fluids through natural rock samples, under conditions as close as possible to reservoir fluids. The experiments on desalinization of halite were carried out in two technological directions: as a method of maintaining reservoir pressure in oil deposits, by injecting fresh water and as stimulation of the oil inflow from a saline reservoir.

 

Keywords: core material; the collector; fluid properties; permeability; pressure; filtration; galit.

 

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