ISSN 0207-2351

Scientific-technical journal

OILFIELD ENGINEERING

                                                                                                        published since 1965

April 2018                                              ¹ 4                                  12 issues per year

 

CONTENÒS

 

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

 

DEVELOPMENT OF OIL AND GAS-OIL FIELDS

 

Eliseev A.N., Sobolev V.I., Shakirov V.A., Deryushev D.E., Sereda I.A. Results of additional exploration at the developed fields of PJSC "Orenburgneft" (p. 8‑13)

 

Khodanovich D.A., Sokhoshko S.K. Solution of the Backley – Leverett one-dimensional task of displacement to determine water-flooding factor of heterogeneous collectors (p. 14‑18)

 

Popov I.P., Zakharov N.O. Substantiation of the filtration-volumetric and hydrodynamic model of Priobskoye field (p. 19‑23)

 

METHODS OF PRODUCING EFFECT ON A DEPOSIT AND RAISING OIL RECOVERY

 

Lobanov A.A., Schekoldin K.A., Zvonkov M.A., Khlan M.V., Pustova E.Yu., Kovalenko V.A., Struchkov I.A., Zolotukhin A.B. Peculiarities of interaction of liquefied carbon-dioxide gas with high-viscous oil. Part I. Mixtures volume and phase behavior (p. 24‑30)

 

Toropetsky K.V., Borisov G.A., Arzhantsev V.S., Mikhailov B.O., Chernysh P.S., Khenkov S.S. Selection of compositions and technologies to be used when treating a near-wellbore zone, conducting hydraulic fracturing of a formation and acid hydraulic fracturing of a formation on the example of the Eastern Siberia fields (p. 31‑37)

 

RESEARCH OF FORMATIONS AND WELLS

 

Denislamov I.Z., Gafarov Sh.A., Zasov P.A., Denislamova A.I. Investigation of fluids composition and processes in the tubing-casing annulus of oil producing wells (p. 38‑42)

 

TECHNIQUE AND TECHNOLOGY OF OIL PRODUCTION

 

Omelyanyuk M.V., Pakhlyan I.A., Bondarenko L.Yu. Application of hydrojet technologies to restore operational parameters of gas purification devices (p. 43‑48)

 

Atachkina N.A., Baranova E.Yu., Lagutkin M.G., Sukhanov D.E. Analysis of vortex hydraulic separators efficiency when used to clean drilling muds (p. 49‑55)

 

PREVENTION OF PARAFFIN SEDIMENTATION, SALTS AND HIDRATES

 

Brikov A.V., Markin A.N. Arrangement of scaling management system by the example of the Western Siberia oil field (p. 56‑61)

 

GATHERING, TRANSPORTATION AND PREPARATION OF OIL, GAS AND WATER

 

Dmitruk V.V., Kasyanenko A.A., Evdokimov A.N., Morar D.Z. Improvement of the assembly of NC16DKS-02 centrifugal compressor shaft in the Yuzhno-Russkoe field (p. 62‑67)

 

Yasashin V.A., Belova E.A., Bolotokov A.S., Sychev A.M. Analysis of oil and oil products quality in the technological chain "well – gas filling station" (p. 68‑71)

 

 

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 622.276+550.832          DOI: 10.30713/0207-2351-2018-4-8-13

 

RESULTS OF ADDITIONAL EXPLORATION AT THE DEVELOPED FIELDS
OF PJSC "ORENBURGNEFT" (p. 8)

 

A.N. Eliseev,

V.I. Sobolev

 

PJSC "Orenburgneft"

2, Magistralnaya str., Buzuluk, 461040, Orenburg region, Russian Federation,

e-mail: orenburgneft@rosneft.ru

 

V.A. Shakirov,

D.E. Deryushev

 

LLC "Tyumen Petroleum Research Center"

42, Maxim Gorky str., Tyumen, 625048, Russian Federation

 

I.A. Sereda

 

PJSC "OC "Rosneft"

26/1, Sofijskaya naberezhnaya, Moscow, 115035, Russian Federation

 

The idea of additional exploring of the geological section in order of prospecting for new deposits has existed throughout the history of the oil industry. To prolong the active field activities in the depleted fields, this direction of supplementary exploration is especially important.

The main goal of the work is to maintain production levels and reserves growth. The main task is to improve the efficiency of the low-profit fund through the implementation of downhole geological-technical measures (GTM).

The article shows the approaches used to prospect for the missed deposits within the developed fields. The results of prospecting for the missed deposits in the period of 2014–2017 are presented, the main perspective directions within the boundaries of the fields under study are determined. A statistical analysis of confirmability and comparison of geophysical studies by carbon-oxygen and radioactive logging in complicatedly-built reservoirs is carried out. The evaluation of the effectiveness of ongoing wells activities in relation to the transfer and deepening of the existing wells is presented, start-up oil flow rates at a number of wells exceeded 100 t/day. The reserves growth is estimated according to the "prospecting for missed deposits" program, 38 deposits with 24,5 million tons increase of initial recoverable reserves have been discovered by the forth quarter.

 

Keywords: geological section; additional exploration; missed deposits; geological-technical measures.

 

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UDC 622.276.43          DOI: 10.30713/0207-2351-2018-4-14-18

 

SOLUTION OF THE BUCKLEY – LEVERETT ONE-DIMENSIONAL TASK
OF DISPLACEMENT TO DETERMINE WATER-FLOODING FACTOR
OF HETEROGENEOUS COLLECTORS (p. 14)

 

D.A. Khodanovich

 

SurgutNIPIneft, a branch of JSC Surgutneftegaz in Tyumen

12/7, Roza Lyuxemburg str., Tyumen, 625003, Russian Federation,

e-mail: khodanovich_da@mail.ru

 

S.K. Sokhoshko

 

Tyumen Industrial University

38, Volodarsky str., Tyumen, 625000, Tyumen region, Russian Federation

 

Determination of oil recovery factor of is one of the key tasks of development analysis and projection. Oil recovery of development objects is largely dependent on reservoirs geological heterogeneities. A correct assessment of characteristic inhomogeneities makes it possible to prove the reserves uneven extraction along a field’s area and to draw up a corresponding program of geological-technical measures for the rational use of hydrocarbon reserves. Areal water-flooding is typical for a great number of fields in the Western Siberia. When using this method of a reservoir stimulation, the substantial losses of mobile oil reserves are explained by the uneven advance of the displacement front along the disconnected interlayers, as well as by the difference in physical properties of oil and a displacing agent. The methods of layer-by-layer heterogeneity estimation, based on the variation coefficient and statistical dependencies, obtained at the objects-analogues, are most widely used nowadays, but this calculation doesn’t account for the filtration specific features and the fluid physical properties. It is proposed to consider the solution of the Buckley – Leverett one-dimensional displacement task to determine the portion of the non-extracted reserves when water-flooding the wells to an extremely cost-effective value. This approach allows accounting for the dissection, the difference in the initial saturation of the disconnected interlayers, the intervals conductivity as well as the physical properties of oil and the displacing agent.

 

Keywords: Buckley – Leverett function; areal water-flooding; heterogeneous reservoir; non-extracted reserves.

 

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UDC 622.276.1/.4          DOI: 10.30713/0207-2351-2018-4-19-23

 

SUBSTANTIATION OF THE FILTRATION-VOLUMETRIC AND
HYDRODYNAMIC MODEL OF PRIOBSKOYE FIELD (p. 19)

 

I.P. Popov, N.O. Zakharov

 

Tyumen Industrial University

38, Volodarsky str., Tyumen, 625000, Russian Federation,

e-mail: n.o.zakharov@yandex.ru

 

Based on the analysis of geological-field data, dynamics of water-flooding development and water-flooding efficiency as well as indicator (tracer) studies, a filtration-volumetric and hydrodynamic model of Priobskoye field was developed.

Oil is contained in cracks and capillary channels commensurable with pores. The unity and continuity of the hydrodynamic system as well as the presence of exchange processes prove the approximate equality of balance reserves between media.

Not accounting of a fields’ filtration-volumetric model brings a low oil recovery factor and formation of hard-to-recover reserves. The selection optimal rate is identified. It provides simultaneous selection of hydrocarbons from two media and promotes the effective use of a reservoir energy and the achievement of higher oil recovery factors.

 

Keywords: oil; collector; reservoir model; development; water-flooding; rates of withdrawal; hard-to-recover reserves; Priobskoye field.

 

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UDC 622.276.6          DOI: 10.30713/0207-2351-2018-4-24-30

 

PECULIARITIES OF INTERACTION
OF LIQUEFIED CARBON-DIOXIDE GAS WITH HIGH-VISCOUS OIL.
PART 1. MIXTURES VOLUME AND PHASE BEHAVIOR (p. 24)

 

A.A. Lobanov, M.A. Zvonkov, M.V. Khlan, E.Yu. Pustova, V.A. Kovalenko, A.B. Zolotukhin

 

M.V. Lomonosov Northern (Arctic) Federal University

17, Severnaya Dvina str., Arkhangelsk , 163002, Russian Federation,

e-mail: lobanov.mdh@gmail.com

 

K.A. Schekoldin

 

JSC "RITEK"

3, Bolshaya Ordynka str., Moscow, 115035, Russian Federation

 

I.A. Struchkov

 

St. Petersburg Mining University

2, line 21, Vasilevsky ostrov, St. Petersburg, 199106, Russian Federation

 

The article is devoted to laboratory studies of liquid carbon dioxide gas interaction with high-viscous oil. The description and results of a set of studies of the systems’ phase and volume behavior are given. The set of studies was carried out for the cases of a single mixing, i. e. the interaction of "fresh" portions of carbon dioxide and formation oil with a viscosity of 795 cP in mixtures with carbon dioxide concentrations of 10, 26, 42, 58 and 75 % wt.

The equipment of the Innovation-Technological Center for Arctic Oil and Gas Laboratory Studies of M.V. Lomonosov Northern (Arctic) Federal University was used for carrying out the studies. The results of the studies were used when planning the measures for injecting carbon dioxide into the reservoir of high-viscous oil.

 

Keywords: enhanced of oil recovery enhancement; special PVT-analysis; carbon dioxide gas; reservoir oil; phase behavior; complex structural units; waxes; asphaltenes; resins.

 

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UDC 622.276.6          DOI: 10.30713/0207-2351-2018-4-31-37

 

SELECTION OF COMPOSITIONS AND TECHNOLOGIES TO BE USED
WHEN TREATING A NEAR-WELLBORE ZONE, CONDUCTING HYDRAULIC FRACTURING
OF A FORMATION AND ACID HYDRAULIC FRACTURING OF A FORMATION
ON THE EXAMPLE OF THE EASTERN SIBERIA FIELDS (p. 31)

 

Konstantin Viktorovich Toropetsky1,

Gleb Alexandrovich Borisov1,

Vitaly Sergeevich Arzhantsev1,

Boris Olegovich Mikhailov1, 2,

Pavel Sergeevich Chernysh1,

Sergey Sergeevich Khenkov3

 

1 LLC "NovosibirskNIPIneft"

6/1, acad. Lavrentiev prosp., Novosibirsk , 630090, Russian Federation,

e-mail: ktoropetsky@nsknipi.ru, gborisov@nsknipi.ru, varzhantsev@nsknipi.ru, pchernysh@nsknipi.ru

 

2 Federal State Budgetary Institute of Science Trofimuk Institute of Oil and Gas Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences (INGT SB RAS)

3, acad. Koptyug prosp., Novosibirsk , 630090, Russian Federation,

e-mail: bmikhailov@nsknipi.ru

 

3 State Corporation "Bank for Development and Foreign Economic Affairs (Vnesheconombank)"

9, acad. Sakharov prosp., Moscow, 107996, Russian Federation,

e-mail: henkov@veb.ru

 

The article formulates methodological aspects for selection and examination of optimal acid compositions to be used for stimulation of low permeable carbonate and terrigenous reservoirs in the Eastern Siberia fields. The direct injection of 12 % HCl when affecting carbonite rocks and 12 % HCl + 3 % HF when affecting terrigenous rocks brings negative effects, namely, a decrease of permeability of a formation bottom-hole zone (FBZ), being confirmed by laboratory and field experiments. A method is proposed and laboratory studies of step-by-step pumping of acidic compositions with a stepwise increase of the acid concentration are carried out. When using such injection sequence, FBZ permeability increases substantially (core columns models). This is explained by the successive formation of filtration channels along the samples entire section, the gradual dissolution of the channels walls and the increase of the filtration area, as well as by a more even distribution of secondary precipitation over the pore entire area.

 

Keywords: carbonate collector; terrigenous collector; acid fracturing of a formation; acid treatments; the Eastern Siberia fields.

 

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UDC 622.276.72          DOI: 10.30713/0207-2351-2018-4-38-42

 

INVESTIGATION OF FLUIDS COMPOSITION AND PROCESSES
IN THE TUBING-CASING ANNULUS OF OIL PRODUCING WELLS (p. 38)

 

Ildar Zafirovich Denislamov,

Shamil Anatolievich Gafarov,

Pavel Alexandrovich Zasov,

Aliya Ildarovna Denislamova

 

Ufa State Oil Technical University

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

e-mail: denislamoviz@mail.ru

 

The annulus tubing-casing space of most oil producing wells is a zone containing associated petroleum gas (APG) and a liquid phase consisting mainly of oil. The properties and composition of both phases are constantly changing due to the discrepancy between the volumes of formation fluid inflow, the deep pump supply, the bypass valve work at the wellhead and the constant gas separation out of oil. The article considers the fluids properties and the processes taking place in the annulus space (AS) from a practical point of view – to explain the acceptable success of technological reagents delivery to the pump inlet during their delivery from the wellhead and to assess the accuracy of determination of the liquid dynamic level by the sound method.

To determine the most significant factor when echo-sounding and wave-metering the gas medium, in the AS at the well under various pressures, petroleum gas withdrawal was carried out for chromatographic analysis. APG calculated composition was determined by the method of D.L. Katz according to the scheme of three-stage gas separation from the reservoir oil of one of the Western Siberia deposits.

The conducted researches and the analysis of the earlier carried out measurements allowed to estimate the component gas composition in the AS as the basic factor influencing the sound speed in a gas environment of a well.

 

Keywords: associated petroleum gas; tubing-casing space; check valve; productive formation; pump; molar concentration; phase; dynamic level; pressure; sound speed; component composition.

 

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UDC 622.691.4.052-784.4          DOI: 10.30713/0207-2351-2018-4-43-48

 

APPLICATION OF HYDROJET TECHNOLOGIES TO RESTORE
OPERATIONAL PARAMETERS OF GAS PURIFICATION DEVICES (p. 43)

 

Maxim Vital'evich Omelyanyuk,

Irina Albertovna Pahlyan

 

Armavir Institute of Mechanics and Technologies (branch) of Kuban State Technological University

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

tel./fax: (861) 377-22-03,

e-mail: m.omelyanyuk@mail.ru

 

Lidiya Yurevna Bondarenko

 

LLC Gazenergokomplekt

44a, office 50, Atamanskaya str., Novocherkassk, 346410, Rostov region, Russian Federation,

e-mail: GEK.Company@gmail.com

 

During operation of the devices used to purify gas of compressor stations of main gas pipelines there occurs their pollution by organic and inorganic components. It results in considerable resistance increase of dust collectors, while the efficiency of gas purification decreases. Therefore, it is periodically necessary to clean dust collectors from all types of pollutants. The problem of compressor stations’ dust collectors cleaning is solved by means of mechanical, chemical, hydrodynamic methods, each of which has advantages, shortcomings and restrictions. The technology of high-pressure hydrodynamic cleaning of dust collectors (cyclonic, multi-cyclonic, oily) from sediments of any (organic, inorganic) composition of any strength (from hydrocarbon components to sediments of a concrete strength) is updated. The technology was industrially tested when cleaning some compressor stations. Implementation of the developments allowed to provide high-quality cleaning of difficult curly surfaces, especially internal surfaces of cyclones; to recover the passport (nominal) resistance of dust collectors; to reduce the time for carrying out repair works (2…5 hours per a dust collector unit).

 

Keywords: dust collector; nozzles; solvent; hydrodynamic method; cleaning; sediments; salts.

 

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UDC 622.442.065:621.928.87          DOI: 10.30713/0207-2351-2018-4-49-55

 

ANALYSIS OF VORTEX HYDRAULIC SEPARATORS EFFICIENCY
WHEN USED TO CLEAN DRILLING MUDS (p. 49)

 

N.A. Atachkina, E.Yu. Baranova, M.G. Lagutkin

 

Moscow Polytechnic University

38, Bolshaya Semenovskaya str., Moscow, 107023, Russian Federation,

e-mail: atachkna@mail.ru

 

D.E. Sukhanov

 

Dzerzhinsky Polytechnic Institute (branch) of Nizhny Novgorod State Technical University

49, Gaidar str., Dzerzhinsk, 606026, Nizhegorodsky region, Russian Federation

 

Batteries of cylinder-conic hydraulic cyclones are often used in the systems of drilling mud cleaning from mechanical admixtures. The article analyzes the expediency of this apparatus replacement by the apparatus, based on the principle of counter-swirling flows (vortex hydraulic separators). The analysis is based on the obtained dependence applied to calculate the overall performance capacity of a vortex hydraulic separator.

 

Keywords: drilling muds; oil and gas wells; hydraulic cyclones; counter swirling flows; vortex hydraulic separator; coefficient of hydraulic resistance; total productivity; computer simulation; full-scale experiment.

 

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UDC 622.276:620.197.3          DOI: 10.30713/0207-2351-2018-4-56-61

 

ARRANGEMENT OF SCALING MANAGEMENT SYSTEM
BY THE EXAMPLE OF THE WESTERN SIBERIA OIL FIELD (p. 56)

 

Alexander Valerievich Brikov

 

JSC "Neftegazholding"

1, Arbatskaya ploschad, Moscow, 119019, Russian Federation,

e-mail: Aleksandr.Brikov@oilgazholding.ru

 

Andrey Nikolaevich Markin

 

Tyumen Industrial University, branch in the city of Nizhnevartovsk

2/P, bld. 9, Lenin str., Panel 20, Zapadny promyshlenny yzel, Nizhnevartovsk, 628616, Tumen region, Khanty-Mansi Autonomous Area – Yugra, Russian Federation,

e-mail: Andrey.N.Markine@gmail.com

 

The article discusses the experience of the system implementation that provides prevention of scaling, tested at one of the Western Siberia oil fields. It is highlighted that development of the criteria required to exclude a well out of wells scaling fund is essentially urgent. Some early well failure mechanism is proposed in cases when chalk is used as a colmatage agent. Measures to be used for setting of wells protection system from scaling as well as its efficiency criteria and mechanisms of control over a company’s well scaling fund are described in detail.

 

Keywords: scaling; scaling inhibitors (SI); scale control system.

 

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UDC 622.691.4.052.012          DOI: 10.30713/0207-2351-2018-4-62-67

 

IMPROVEMENT OF THE ASSEMBLY
OF NC16DKS-02 CENTRIFUGAL COMPRESSOR SHAFT
IN THE YUZHNO-RUSSKOE FIELD (p. 62)

 

Vladimir Vladimirovich Dmitruk,

Andrey Alexandrovich Kasyanenko,

Andrey Nikolaevich Evdokimov,

Denis Zakharovich Morar

 

JSC "Severneftegazprom"

22, Lenin str., Krasnoselkup village, 629380, Krasnoselkupsky region, Yamalo-Nenets autonomous territory, Russian Federation,

e-mail: DmitrukVV@sngp.com, KasyanenkoAA@sngp.com, EvdokimovAN@sngp.com, MorarDZ@sngp.com

 

An urgent problem when producing and transporting gas by gas producing and transmission companies is provision of reliable and uninterrupted operation of gas-compressor units in order to avoid emergency situations at a production site, to achieve the planned targets and contractual obligations to supply gas to consumers.

The article presents an innovative development on improvement of the assembly of "NC16DKS-02" centrifugal compressor shaft of GPA-16DKS-09 "Ural" gas compressor unit.The innovative development was tested at the Yuzhno-Russkoe field to raise the operational reliability.

 

Keywords: assembly of a centrifugal compressor shaft; gas-dynamic seals; active electromagnetic bearings; safety bearings; increase of a centrifugal compressor reliability.

 

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UDC 622.276:622.692:665.62          DOI: 10.30713/0207-2351-2018-4-68-71

 

ANALYSIS OF OIL AND OIL PRODUCTS QUALITY
IN THE TECHNOLOGICAL CHAIN "WELL − GAS FILLING STATION" (p. 68)

 

V.A. Yasashin, E.A. Belova, A.S. Bolotokov

 

Gubkin Russian State Oil and Gas University (NRU)

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

e-mail: yasashin@rambler.ru

 

A.M. Sychev

 

JSC "Transneft−metrology"

16, bld.1, Dobrolyubov str., Moscow, 127254, Russian Federation

 

The problems of quality control of oil and oil products at four main stages: field (well) − transportation (pipeline) – oil processing (refinery) – final consumer (gas filling station) are considered. The analysis of changes of oil and oil products quality parameters in the technological chain "well − gas filling station" is presented.

 

Keywords: quality control; oil; petroleum products; well; pipeline; petroleum refining; gasoline; standard.

 

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