ISSN 0207-2351

Scientific-technical journal

OILFIELD ENGINEERING

                                                                                                    published since 1965

April 2021                       ¹ 4 (628)                      12 issues per year

 

CONTENÒS

 

DEVELOPMENT OF OIL AND GAS-OIL FIELDS

 

Kuznetsov A.V., Sentsov A.Yu., Ovchinnikova E.I. Prospects of commissioning into active development of the regional AV13 formation reserves in the Western Siberia fields (p. 5‑8)

 

Zakharova N.P., Malshakov E.N., Fufaev S.A., Pozdnyakova T.S. Influence of water-gas impact assesment on development efficiency (p. 9‑17)

 

Ganiev B.G., Vladimirov I.V., Khisamutdinov N.I., Rakhmatullin A.A. Application of the methods for calculation and building of density maps of initial and current undrained mobile oil reserves based on geological-hydrodynamic modeling data to improve the oil recovery (p. 18‑25)

 

RESEARCH OF FORMATIONS AND WELLS

 

Sergeeva E.V., Kovaleva G.A. Influence of the hydrodynamic model grid dimension on oil recovery indicators at various oil viscosities (p. 26‑31)

 

Tukhvatullina Yu.V., Kagan M.V., Shnayder A.V., Kovalenko R.V. Empirical substantiation of the relative phase permeabilities of oil and water for the reservoirs of Achimovsky deposits (p. 32‑36)

 

Goncharova O.R., Fedorov V.N. Analysis of petrophysical and filtration-capacitive properties of under-gas-cap deposits of the Perm Kama region fields (p. 37‑42)

 

Nikolaeva T.N., Mett D.A. Justification of the minimumal number of laboratory tests required for applying thermal and gas methods to study their impact on the formations of the upper Jurassic deposits on the example of the sensitivity analysis calculation of the hydrodynamic model of the adapted experiment. Part 1 (p. 4346)

 

TECHNIQUE AND TECHNOLOGY OF OIL PRODUCTION

 

Stefanov R.E. Chernomorneftegaz–Dobycha LLC – reliance on the implementation and development of innovative technologies in oil and gas production in the Crimea (p. 47‑50)

 

Eremin N.A., Stolyarov V.E., Safarova E.A., Filippova D.S. Legal support for the implementation of innovative developments in the oil and gas industry (p. 51‑58)

 

GATHERING, TRANSPORTATION AND PREPARATION OF OIL, GAS AND WATER

 

Solodov A.N., Arkhipov S.V., Kuznetsov S.A., Pashkevich K.L., Kozhin V.N., Kirillov A.S. Laboratory tests of hydrogen sulfide scavenger for the object of "Otradny" oil stabilization facilities of Samaraneftegaz JSC (p. 59‑62)

 

 

Information on the articles

 

UDC 622.276.1/.4          DOI: 10.33285/0207-2351-2021-4(628)-5-8

 

PROSPECTS OF COMMISSIONING INTO ACTIVE DEVELOPMENT OF THE REGIONAL AV13
FORMATION RESERVES IN THE WESTERN SIBERIA FIELDS (p. 5)

 

Andrey Valerievich Kuznetsov,

Alexey Yurievich Sentsov,

Evgeniya Igorevna Ovchinnikova

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

41, Respublika str., Tyumen, 625000, Russian Federation,

e-mail: KuznetsovAV@tmn.lukoil.com; SentsovAY@tmn.lukoil.com; OvchinnikovaEI@tmn.lukoil.com

 

The experience of wells development and the results of wells operation of the regional formation AV13 in the Western Siberia fields are considered. The AV13 formation oil reserves in the drilled zones are poorly covered by the drainage and are a reserve for increasing oil production at the facility. The main development problems are identified as well as the advantages of involving reserves in the drilled areas of the fields. The efficiency of the applied technologies as well as the potential of drilling the formation by an independent well pattern, were assessed.

 

Keywords: formation; development analysis; reserves recovery; permeability; debit; development system; multilateral well; horizontal well.

 

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UDC 622.276.42/.43          DOI: 10.33285/0207-2351-2021-4(628)-9-17

 

INFLUENCE OF WATER-GAS IMPACT ASSESMENT ON DEVELOPMENT EFFICIENCY (p. 9)

 

Natalia Pavlovna Zakharova,

Evgeny Nikolaevich Malshakov,

Sergey Andreevich Fufaev,

Tatiana Sergeevna Pozdnyakova

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

143a, Respublika str., Tyumen, 625026, Russian Federation,

e-mail: ZaharovaNP@tmn.lukoil.com; MalshakovEN@tmn.lukoil.com; FufaevSA@tmn.lukoil.com; PozdnyakovaTS@tmn.lukoil.com

 

The results of pilot works on water-gas impact (WGI) at one of the fields in the Western Siberia are considered. The water-gas impact on the efficiency of production facilities development of the investigated field was analyzed and its efficiency was calculated. According to the results of the analysis, the work on WGI within five years of application has low efficiency, both technological and economic, but this experience of using WGI is necessary for further study of the WGI influence on fields’ development efficiency.

 

Keywords: water-gas impact; rims of water and gas; enhanced oil recovery; efficiency of the displacement system; rate of withdrawal of initially recoverable reserves; increase in water cut; injection well; gas factor; reservoir pressure maintenance system; booster installation; associated petroleum gas; natural gas; oil recovery factor.

 

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UDC 622.276.1/.4:622.276.6          DOI: 10.33285/0207-2351-2021-4(628)-18-25

 

APPLICATION OF THE METHODS FOR CALCULATION AND BUILDING OF DENSITY MAPS
OF INITIAL AND CURRENT UNDRAINED MOBILE OIL RESERVES BASED ON GEOLOGICAL-
HYDRODYNAMIC MODELING DATA TO IMPROVE THE OIL RECOVERY (p. 18)

 

Bulat Galievich Ganiev, Cand. of tech. sci.

 

PJSC "Tatneft" named after V.D. Shashin

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

 

Igor Vyacheslavovich Vladimirov, Dr. of tech. sci,

Nail Ismagzamovich Khisamutdinov, Dr. of tech. sci,

Ainur Akhatovich Rakhmatullin

 

LLC NPO "Neftegaztekhnologiya"

96/2, Revolutsionnaya str., Ufa, 450078, Republic of Bashkortostan, Russian Federation,

e-mail: npongt@gmail.com

 

The article describes a method for building maps of layer-by-layer and zonal reservoir heterogeneity, oil saturation, oil displacement factor and reserves coverage. The calculations included the object division based on the Delaney triangulation into elementary triangles with wells located in their vertices and into non-overlapping polygons (Voronoi regions). Based on a number of experimental data from the TatNIPIneft, the dependence of the displacement factor on the permeability for layer-by-layer and zonal permeability heterogeneous reservoir was established using the example of the D1 horizon of the Tashliyarskaya area of the Romashkinskoye field. Using mathematical modeling, the initial recoverable oil reserves, put into development, were determined, mobile undrained oil reserves were calculated and a map was built with the allocation of areas for conducting various geological and technical measures.

 

Keywords: enhanced oil recovery; building of maps; Delaney triangulation; initial recoverable oil reserves.

 

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UDC 622.276.1/.4.001.57:622.276.344          DOI: 10.33285/0207-2351-2021-4(628)-26-31

 

INFLUENCE OF THE HYDRODYNAMIC MODEL GRID DIMENSION ON OIL RECOVERY
INDICATORS AT VARIOUS OIL VISCOSITIES (p. 26)

 

Elena Viktorovna Sergeeva

 

SamaraNIPIneft LLC

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

 

Galina Anatolievna Kovaleva

 

Samara State Technical University

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

 

On the basis of calculations obtained using a three-dimensional geological-mathematical model, the influence of the hydrodynamic grid parameters at various oil viscosities on the volume of oil recovery was estimated.

 

Keywords: hydrodynamic simulation; hydrodynamic grid; oil viscosity; oil recovery factor; heterogeneity.

 

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UDC 622.276.031.011.433          DOI: 10.33285/0207-2351-2021-4(628)-32-36

 

EMPIRICAL SUBSTANTIATION OF THE RELATIVE PHASE PERMEABILITIES OF OIL
AND WATER FOR THE RESERVOIRS OF ACHIMOVSKY DEPOSITS (p. 32)

 

Yuliya Valerievna Tukhvatullina,

Mikhail Vladimirovich Kagan,

Alexander Vladimirovich Shnayder, Cand. of phyz.-math. sci.,

Ruslan Vladimirovich Kovalenko

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

143a, Gazoil-Plaza, Respublika str., Tyumen, 625026, Russian Federation,

e-mail: TyhvatyllinaJV@tmn.lukoil.com; KaganMV@tmn.lukoil.com; ShnayderAV@tmn.lukoil.com; KovalenkoRV@tmn.lukoil.com

 

A method for obtaining empirical curves of oil and water relative phase permeabilities based on the analysis of laboratory research results is considered. The application of this method will make it possible to perform an empirical calculation of the curves of the relative phase permeabilities at a given value of the absolute permeability, based on rather reliable functional relationships, identified when analyzing the results of studies of core material from the Achimov deposits of the Imilorskoye field.

 

Keywords: relative phase permeability; absolute permeability; water retention capacity; reservoir properties; two-phase filtration of oil and water.

 

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UDC 622.276.031:532.51(1-04)ÃÍÊ+622.276.6          DOI: 10.33285/0207-2351-2021-4(628)-37-42

 

ANALYSIS OF PETROPHYSICAL AND FILTRATION-CAPACITIVE PROPERTIES
OF UNDER-GAS-CAP DEPOSITS OF THE PERM KAMA REGION FIELDS (p. 37)

 

Olga Razimovna Goncharova

 

LUKOIL–Engineering Limited PermNIPIneft Branch Office in Perm

3à, Permskaya str., Perm, 614000, Russian Federation,

e-mail: Olga.R.Goncharova@pnn.lukoil.com

 

Vyacheslav Nikolaevich Fedorov, Dr. of tech. sci., Professor

 

Ufa State Petroleum Technological University

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

e-mail: fed_vyach@mail.ru

 

Over the past two decades, the structure of oil and gas reserves in Russia has undergone significant changes: with a general increase in reserves, a significant increase in the share of hard-to-recover reserves (HTRR) is observed. According to the existing classification, the sub-gas zones of a two-phase type deposits are one of the main subgroups.

The paper assesses the current state of the reserves of the sub-gas deposits of the Perm Kama region, analyzes the distribution of porosity and permeability of the productive formations of the Low and Middle Carboniferous age. Viscosity values of saturating oil and related parameters such as mobility, displacement coefficient are considered.

The sub-gas deposits of the Perm Territory are grouped by their belonging to coeval deposits; the sensitivity of the displacement coefficient changes to the changes in permeability and mobility is estimated. In order to identify the characteristic features and determine the nature of the change in the filtration-capacitive properties, the petrophysical and hydrodynamic characteristics are compared with uniform layers of small deposits of high-viscosity oil on the western slope of the South Tatar arch.

The base of actually carried out geological-technical measures (GTM) aimed at increasing the mobility is analyzed. The multiplicity of increase in oil production rate after the use of geological-technical measures was evaluated for the selected groups of objects. Based on the obtained dependences of the displacement coefficient on mobility as well as taking into account the analysis of the results of the performed geological-technical measures, conclusions are drawn about the effectiveness of the application of enhanced oil recovery methods aimed at increasing the mobility of reservoir fluids. The results and conclusions are aimed at improving the efficiency of regulation of gas and oil fields development in the Perm Territory, selection and justification of geological-technical measures.

 

Keywords: oil-and-gas deposit; gas cup; oil rim; oil displacement; correlation coefficient; oil mobility; permeability; multiplicity of increase of the flow rate.

 

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UDC 622.276.654.001.57          DOI: 10.33285/0207-2351-2021-4(628)-43-46

 

JUSTIFICATION OF THE MINIMUMAL NUMBER OF LABORATORY TESTS REQUIRED
FOR APPLYING THERMAL AND GAS METHODS TO STUDY THEIR IMPACT
ON THE FORMATIONS OF THE UPPER JURASSIC DEPOSITS ON THE EXAMPLE
OF THE SENSITIVITY ANALYSIS CALCULATION OF THE HYDRODYNAMIC MODEL
OF THE ADAPTED EXPERIMENT. PART 1 (p. 43)

 

Tatyana Nikolaevna Nikolaeva,

Dmitriy Aleksandrovich Mett, Cand. of tech. sci.

 

LLC "LUKOIL–Engineering"

3, bld. 1, Pokrovsky boulevard, Moscow, 109028, Russian Federation,

e-mail: Tatyana.Nikolaeva@lukoil.com; Dmitrij.Mett@lukoil.com

 

The presented article, which consists of two parts, considers an approach to the selection of the minimum required and sufficient number of laboratory studies on the example of calculating the sensitivity analysis in an adapted hydrodynamic model (HDM) for an actual experiment using the CMG stars simulator. The most significant parameters were identified and considered: the initial permeability of the undrained part when exposed to temperature, the initial geological porosity of the undrained part, molar masses of coke and kerogen (kg/mol), kerogen density (kg/m3), TOC (%) (Copr), ratios of gas, oil and coke by weight in the equation of kerogen cracking (%). The first part of the article discusses an approach to modeling the experiment, on the basis of which a sensitivity analysis will be made and the hydrodynamic model will be adapted to the actual results. Further on the influence of various necessary parameters set in the HDM on the calculation results is considered. The second part of the article includes the added parameters, and on the basis of all the calculations and data carried out, a conclusion is made about a possible optimal reduction in the number of studies at the stage of pilot work for rocks of the Upper Jurassic deposits and the creation of a hydrodynamic model under conditions of the minimum allowable amount of initial data.

 

Keywords: adapted hydrodynamic model; molar mass and density of kerogen; modeling; research; initial data.

 

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UDC 622.276+550.822.7          DOI: 10.33285/0207-2351-2021-4(628)-47-50

 

CHERNOMORNEFTEGAZ–DOBYCHA LLC – RELIANCE ON THE IMPLEMENTATION
AND DEVELOPMENT OF INNOVATIVE TECHNOLOGIES IN OIL
AND GAS PRODUCTION IN THE CRIMEA (p. 47)

 

Roman Evgenievich Stefanov

 

Chernomorneftegaz–Dobycha LLC

28/10, K. Marks str., Simpheropol, 295000, Republic of Crimea, Russian Federation.

 

The paper, for the first time, notes the risks which can occur when developing oil and gas fields in the Republic of Crimea. The economic sanctions of the United States and the European Union imposed against the Russian Federation in terms of trade and supplies of equipment, materials and technologies for the oil and gas industry, as well as the territorial claims of the Ukraine, significantly reduce the efficiency of the hydrocarbon fields development in the Republic of Crimea and especially offshore oil and gas fields in the Azov and Black Seas. The complexity of climatic conditions, constant changes in water temperature, directions of sea currents, ebb and flow, storms, drifting ice, etc. require the construction of expensive engineering structures (platforms) and long-term organizational and technological measures, which causes high unit costs of exploration, development and production of hydrocarbons versus the cost of exploration, development and production of oil and gas onshore.

The promising deposits of mountainous and lowland Crimea for the discovery of large gas, gas-condensate and oil fields on the Kerch Peninsula: Jurassic, Lower Cretaceous and Aptian-Albian, Maikopian and pre-Maikopian deposits (works of B.I. Deneg, S.I. Ivanov, I.F. Glumov, V.L. Gulyaev, B.V. Senin, S.M. Karnaukhov, etc.) are mentioned. The potential of the Kerch Peninsula in terms of hydrocarbon production in the Republic of Crimea may exceed the potential of oil and gas production in the Caspian Sea region. As part of the implementation of the Program of joint activities and the Agreement between State Unitary Enterprises "Krymgeologiya" and "Chernomorneftegaz", it is planned to drill a deep exploration well in the Povorotnaya area for the production of natural gas and condensate.

 

Keywords: Republic of Crimea; prospective deposits; gas, gas condensate and oil fields; exploration well.

 

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UDC 622.276+351.824.1:316.334.4:004.942          DOI: 10.33285/0207-2351-2021-4(628)-51-58

 

LEGAL SUPPORT FOR THE IMPLEMENTATION OF INNOVATIVE DEVELOPMENTS
IN THE OIL AND GAS INDUSTRY (p. 51)

 

Nikolai Aleksandrovich Eremin1,2, Dr. of tech. sci., Professor,

Vladimir Evgenievich Stolyarov1,

Elisaveta Aleksandrovna Safarova1,

Dina Sergeevna Filippova1

 

1Oil and gas Research Institute Russian Academy of Science

3, Gubkin str., Moscow, 119333, Russian Federation,

å-mail: ermn@mail.ru; bes60@rambler.ru; safarovaelisaveta@gmail.com; filippovads@ipng.ru

 

2National University of Oil and Gas "Gubkin University"

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

å-mail: ermn@mail.ru

 

The article presents the structure of regulatory support for scientific research in the implementation of innovative developments in the oil and gas industry. At a time of increasing competition and the global energy crisis, the transformation of the domestic oil and gas sector into a branch of modern technologies is an effective option for developing and preserving the existing potential. Innovative activity is a part of the state's socio-economic policy and should guarantee the development and security of business, determine the goals and directions of development in the form of the development of legislation, the implementation of various forms of support in the activities of Federal and territorial state authorities. The ongoing digital modernization provides an economic result only in the presence of state regulation of innovative technologies and stimulation of domestic scientific developments based on artificial intelligence, large data sets, predictive control and modeling of technological processes and objects. The article provides a brief overview of the development of regulatory activities, provides examples of the application of the best foreign practices in the field of stimulating and developing promising technologies and industries. It is shown that providing incentives for innovation, as part of the regulatory process, can have a direct and indirect impact and is carried out in the form of various forms and institutions of development.

 

Keywords: legislation; state; law; science; innovation; regulation; economy; modernization; intelligent technology; digital platform.

 

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UDC 622.276          DOI: 10.33285/0207-2351-2021-4(628)-59-62

 

LABORATORY TESTS OF HYDROGEN SULFIDE SCAVENGER FOR THE OBJECT
OF "OTRADNY" OIL STABILIZATION FACILITIES OF SAMARANEFTEGAZ JSC (p. 59)

 

Anatoly Nikolaevich Solodov,

Sergey Aleksandrovich Kuznetsov,

Vladimir Nikolaevich Kozhin, Cand. of tech. sci.,

Anatoly Sergeevich Kirillov

 

SamaraNIPIneft LLC

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

e-mail: Solodovan@samnipi.rosneft.ru; KuznetsovSA@samnipi.rosneft.ru; KozhinVN@samnipi.rosneft.ru; KirillovAS@samnipi.rosneft.ru

 

Sergey Vladimirovich Arkhipov,

Kirill Lavrentievich Pashkevich

 

Samaraneftegaz JSC

50, Volzhsky prosp., Samara, 443071, Russian Federation,

å-mail: ArkhipovSV@samng.rosneft.ru; PashkevichKL-samara@samng.rosneft.ru

 

Due to the commencement of the Technical regulation of the Eurasian economic Union TR EAEC 045/2017, which toughens the requirements for ensuring the mass fraction of hydrogen sulfide, methyl- and ethylmercaptans in commercial oil of no more than 20 and 40 ppm, respectively, SamaraNIPIneft LLC carried out preliminary assessment of the potential efficiency of five scavenger of hydrogen sulfide and methyl-, ethyl mercaptans on the sour crude oil form "Otradny" oil stabilization facilities of Samaraneftegaz JSC. Laboratory tests of oilfield chemicals were carried out taking into account the specific conditions of the facility and in accordance with the requirements of NÑ Rosneft PJSC.

 

Keywords: oil treatment; hydrogen sulfide; hydrogen sulfide scavenger.

 

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