ISSN 0207-2351

Scientific-technical journal

OILFIELD ENGINEERING

                                                                                                    published since 1965

December 2020                           ¹ 12 (624)                      12 issues per year

 

CONTENÒS

 

DEVELOPMENT OF OIL AND GAS-OIL FIELDS

 

Akhapkin M.Yu., Afanaskin I.V., Glushakov A.A., Chen-len-son Yu.B., Korolev A.V. Oil deposits development along with development of a reservoir additional compaction process (p. 5‑14)

 

Yudin V.A., Volpin S.G., Efimova N.P., Afanaskin I.V. Some features of pressure stabilization curve in the well located in the fault’s dynamic influence zone (p. 15‑22)

 

Afanaskin I.V., Volpin S.G., Shtejnberg Yu.M., Lomakina O.V., Solopov D.V. Testing of the approach to the multi-well deconvolution, applying CRM-models on the example zonal-heterogeneous closed reservoir (p. 23‑28)

 

Afanaskin I.V., Volpin S.G., Shtejnberg Yu.M., Lomakina O.V., Solopov D.V. Multi-well deconvolution using CRM-models, which was based on layer type oil saturated reservoir example (p. 29‑36)

 

METHODS OF PRODUCING EFFECT ON A DEPOSIT AND RAISING OIL RECOVERY

 

Bokserman A.A. , Volpin S.G., Mironov D.T. Application efficiency of the thermal-gas enhanced oil recovery method for different reservoir conditions (p. 37‑45)

 

Ratnikova E.A., Telkov V.P. The influence of the proppant sedimentation rate on the productivity of the well during hydraulic fracturing of a formation (p. 46‑50)

 

Alali Walid, Eremin N.A. Application of simulation methods for forecasting gas and polymer impact on the fields of Syria (p. 51‑55)

 

RESEARCH OF FORMATIONS AND WELLS

 

Kryganov P.V., Bakhmutsky M.L., Volpin S.G., Afanaskin I.V. Bypassed oil zones identification in interwell space by welltest application (p. 56‑63)

 

Nikitin A.V., Kallin I.V., Olkhovskaya V.A., Roshchin P.V., Kireev I.I. Accounting of heavy oil non newtonian properties in the process of hydrodynamic simulation (p. 64‑69)

 

CORROSION AND ENVIRONMENT PRESERVATION

 

Markin A.N., Markin I.A. Calculation of maximum local corrosion rate in pipelines of oilgathering systems according to the data of weight measurements obtained by means of corrosion control samples (p. 70‑73)

 

 

Information on the articles

 

UDC 622.276.031:532.11.08          DOI: 10.30713/0207-2351-2020-12(624)-5-14

 

OIL DEPOSITS DEVELOPMENT ALONG WITH DEVELOPMENT OF A RESERVOIR ADDITIONAL COMPACTION PROCESS (p. 5)

 

Mikhail Yurievich Akhapkin, Cand. of tech. sci.,

Ivan Vladimirovich Afanaskin, Cand. of tech. sci.,

Alexey Aleksandrovich Glushakov,

Yury Borisovich Chen-len-son,

Alexander Vasilievich Korolev, Cand. of tech. sci.

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: Ivan@Afanaskin.ru

 

Based on a small oil deposit example, being a part of the multilayered oil-gas-condensate field, located in the south of Russia, geological and physical conditions and feature properties, which contribute to a reservoir compaction process, that may occur during a natural mechanism of a reservoir development with a reservoir initial and abnormally pressure reduction are considered. Analysis results of fields’ data and mathematical simulation makes evident the possibility of significant influence of a reservoir additional compaction on technological parameters of a deposit development.

 

Keywords: depletion development; elastically-closed drive regime; abnormally high reservoir pressure; reservoir additional compaction process.

 

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UDC 622.276.031:532.11:551.243          DOI: 10.30713/0207-2351-2020-12(624)-15-22

 

SOME FEATURES OF PRESSURE STABILIZATION CURVE IN THE WELL LOCATED
IN THE FAULT’S DYNAMIC INFLUENCE ZONE (p. 15)

 

Valery Adolfovich Yudin, Cand. of phys.-math. sci.,

Sergey Grigorievich Volpin, Cand. of tech. sci.,

Natalia Petrovna Efimova,

Ivan Vladimirovich Afanaskin, Cand. of tech. sci.

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: yudinval@yandex.ru

 

Possibility of faults identication and structure determination of fault’s dynamic inuence zone (DIZ) by using drawdown measurements in the well drilled and put into production in such zone is analyzed. Several combinations of DIZ permeability and width, eccentricity of the well location in DIZ were examined. It was shown that in some situations the strip-shaped nature of DIZ can be established. But in many cases such problem solution leads to ambiguous conclusions about a fault occurrence or the form of DIZ.

 

Keywords: well tests; drawdown curve; faults; fault permeability structure.

 

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UDC 622.276.031:532.11          DOI: 10.30713/0207-2351-2020-12(624)-23-28

 

TESTING OF THE APPROACH TO THE MULTI-WELL DECONVOLUTION, APPLYING CRM-MODELS
ON THE EXAMPLE ZONAL-HETEROGENEOUS CLOSED RESERVOIR (p. 23)

 

Ivan Vladimirovich Afanaskin, Cand. of tech. sci.,

Sergey Grigorievich Volpin, Cand. of tech. sci.,

Yury Mikhailovich Shtejnberg,

Olga Vladimirovna Lomakina,

Dmitry Vladimirovich Solopov

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: Ivan@Afanaskin.ru

 

The paper, using the model example of a zonal-heterogeneous closed reservoir with four wells, considers in detail testing of the method of searching functions of approach to earlier described procedure of mutual interaction and self-interaction during multi-well de-convolution through CRM-models application, was earlier proposed by the authors of the paper. Reservoir properties, derived from interpretation results of pressure drawdown and pressure interference curves, which were calculated using a multi-well deconvolution, are well corresponding with the initially set ones in the numerical model.

 

Keywords: well testing; multi-well deconvolution; CRM-model.

 

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UDC 622.276.031:532.11+622.276.346          DOI: 10.30713/0207-2351-2020-12(624)-29-36

 

MULTI-WELL DECONVOLUTION USING CRM-MODELS, WHICH WAS BASED
ON LAYER TYPE OIL SATURATED RESERVOIR EXAMPLE (p. 29)

 

Ivan Vladimirovich Afanaskin, Cand. of tech. sci.,

Sergey Grigorievich Volpin, Cand. of tech. sci.,

Yury Mikhailovich Shtejnberg,

Olga Vladimirovna Lomakina,

Dmitry Vladimirovich Solopov

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: Ivan@Afanaskin.ru

 

The paper considers in detail the results of testing CRM-models application for a multi-well deconvolution of the data, which includes down hole pressure and rates data, using the model example of a heterogeneous by thickness and spread oil deposit with active aquifer, complicated by non-permeable limited borders and developed by seven wells. The method of searching for influence and self-influence functions during a multi-well deconvolution was earlier proposed by the authors of the paper. The reservoir parameters, obtained after interpretation of pressure drawdown and pressure interference curves, which were calculated using a multi-well deconvolution, are well corresponding with averaged by thickness properties in the numerical model.

 

Keywords: hydrodynamic well testing; multi-well deconvolution; CRM-model.

 

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UDC 622.276.652          DOI: 10.30713/0207-2351-2020-12(624)-37-45

 

APPLICATION EFFICIENCY OF THE THERMAL-GAS ENHANCED OIL RECOVERY METHOD
FOR DIFFERENT RESERVOIR CONDITIONS (p. 37)

 

Arkady Anatolievich Bokserman, Dr. of tech. sci., Professor,

Sergey Grigorievich Volpin, Cand. of tech. sci.,

Dmitry Tikhonovich Mironov

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: sergvolpin@gmail.com

 

The paper discusses the estimation of application of the efficiency of the thermal gas method of oil recovery enhancement (TG ORI) in various geological-physical conditions. The paper briefly highlights the mechanism of the treatment on a reservoir when implementing the thermal gas method of oil recovery enhancement (TG ORI) and presents some specific features of the technology. The Russian thermal-gas method of oil recovery enhancement is based on the integration of the thermal and gas methods of treatment and applied both for low permeable reservoirs and deposits of Bazhenov formation.

The forecast of technological parameters of experimental sites development data based on the numerical modeling results using the thermal gas method of oil recovery enhancement (TG ORI) allows expecting significant oil recovery enhancement due to the application of the method as compared with traditionally used methods, thus being required for rational sub-soils development.

The thermal gas method of oil recovery enhancement (TG ORI) may also efficient when developing deposits of Bazhenov formation thanks to introduction of non-drained intervals heat transfer from the draining permeable interlayers, when the rock is significantly heated and the reaction of kerogen pyrolysis is formed.

 

Keywords: method of oil recovery enhancement; low permeable reservoirs; Bazhenov formation; thermal-gas treatment; oxygen-containing mixture injection; kerogen-organic matter; drained and non-drained rocks; spontaneous exothermic oxidation reactions; enhanced oil recovery.

 

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UDC 622.276.66.004.58          DOI: 10.30713/0207-2351-2020-12(624)-46-50

 

THE INFLUENCE OF THE PROPPANT SEDIMENTATION RATE ON THE PRODUCTIVITY
OF THE WELL DURING HYDRAULIC FRACTURING OF A FORMATION (p. 46)

 

Ekaterina Andreevna Ratnikova,

Viktor Pavlovich Telkov, Cand. of tech. sci.

 

National University of Oil and Gas "Gubkin University"

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

e-mail: telkov_viktor@mail.ru

 

The paper considers the main factors affecting the transport and deposition of proppant in the fracture as well as provides correlations that take into account these factors. An algorithm is proposed for calculating the parameters of the hydraulic fracture and the productivity of the well taking into account the proppant deposition of in the fracture. Based on the proposed algorithm, calculations were carried out and a conclusion was made about the effect of the sendimentation rate on the well productivity.

 

Keywords: hydraulic fracturing of a formation; proppant; proppant transport; sedimentation of proppant; rate of proppant sedimentation.

 

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UDC 622.276          DOI: 10.30713/0207-2351-2020-12(624)-51-55

 

APPLICATION OF SIMULATION METHODS FOR FORECASTING GAS
AND POLYMER IMPACT ON THE FIELDS OF SYRIA (p. 51)

 

Alali Walid1,

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

 

1National University of Oil and Gas "Gubkin University"

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

e-mail: walidalali@gubkin.ru

 

2Institute of Oil and Gas Problems of the Russian Academy of Sciences

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

e-mail: ermn@mail.ru

 

The paper is devoted to the study of simulation modeling methods that can be applied to predict gas and polymer impact. The existing forecasting methods are analyzed and the comparative characteristics of the methods are presented.

Based on the review, the choice of the forecasting method was carried out, and the possibility of using neural networks for forecasting was presented. A neural network model to be applied for forecasting of gas and polymer impact is presented.

 

Keywords: forecasting; gas impact; polymer impact; modeling; agents; neural network.

 

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UDC 622.276.031.011.433:532.5          DOI: 10.30713/0207-2351-2020-12(624)-56-63

 

BYPASSED OIL ZONES IDENTIFICATION IN INTERWELL SPACE
BY WELLTEST APPLICATION (p. 56)

 

Pavel Viktorovich Kryganov, Cand. of tech. sci.,

Mikhail Lvovich Bakhmutsky, Cand. of phys.-math. sci.,

Sergey Grigorievich Volpin, Cand. of tech. sci.,

Ivan Vladimirovich Afanaskin, Cand. of tech. sci.

 

Federal State Institution "Scientific Research Institute for System Analysis of the Russian Academy of Sciences"

36, bld. 1, Nakhimovsky prosp., Moscow, 117218, Russian Federation,

e-mail: Ivan@Afanaskin.ru

 

The article describes an approach to studying in detail properties and location of bypassed oil zones taking into account some initial data about unproduced oil reserves. Through a special interference well test application on a simulated reservoir based on the existing methods and software packages, it became possible to confirm the availability of a bypassed oil zone and to give a reasonable estimate of its properties. At assumption of a bypassed oil zone centralized location its permeability was estimated, as well as dimensions and spatial orientation. This set of data makes available oil reserves estimation of bypassed oil zone, which could be clarified through numerical simulation.

 

Keywords: hydrodynamic simulation; well tests; residual oil reserves.

 

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UDC 622.276.1/.4.001.57:665.7.035.6          DOI: 10.30713/0207-2351-2020-12(624)-64-69

 

ACCOUNTING OF HEAVY OIL NON NEWTONIAN PROPERTIES IN THE PROCESS
OF HYDRODYNAMIC SIMULATION (p. 64)

 

Alexander Valerievich Nikitin,

Ilia Valerievich Kallin,

Valeriya Aleksandrovna Olkhovskaya, Cand. of tech. sci.,

Pavel Valerievich Roshchin, Cand. of tech. sci.,

Ivan Ivanovich Kireev

 

LLC "SamaraNIPIneft"

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

e-mail: RoschinPV@samnipi.rosneft.ru

 

The paper presents the results of studying the influence of heavy oil non-Newtonian properties on the physical processes of deposits development and their simulation. The theoretical information about the non-Newtonian properties of heavy oil and modern ideas about the main features of the development of heavy oil deposits is given. The results of the studies of the influence of non-Newtonian properties of high-viscous oil on the process of deposits development and its hydrodynamic simulation are noted.

To assess the non-Newtonian properties impact on the design, placement of the grid of wells and oil recovery factor, calculations were made using a sector hydrodynamic model with a direct areal five-point water-flooding system.

Also, in order to assess the impact of non-Newtonian properties on the deposit coverage by the development, calculations were performed on a full-scale model of one of the reservoirs of the Northern group of fields of JSC "Samaraneftegaz".

It has been established that non-Newtonian properties have a significant impact on oil recovery factor and cumulative oil production. For the tested objects, it was found that the development efficiency can be increased both as a result of compaction of the well grid in order to develop stagnant zones, and due to specific geological and technical measures.

 

Keywords: heavy oil; non-Newtonian properties; hydrodynamic modeling; cumulative oil production; oil recovery factor; geological and engineering measures.

 

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UDC 620.193:622.692.12          DOI: 10.30713/0207-2351-2020-12(624)-70-73

 

CALCULATION OF MAXIMUM LOCAL CORROSION RATE IN PIPELINES OF OILGATHERING
SYSTEMS ACCORDING TO THE DATA OF WEIGHT MEASUREMENTS OBTAINED
BY MEANS OF CORROSION CONTROL SAMPLES (p. 70)

 

Andrey Nikolaevich Markin, Cand. of tech. sci.

 

Industrial University of Tyumen, a branch in Nizhnevartovsk

2/Ï, bld. 9, Panel 20, Lenin str., Khanty-Mansi Autonomous territory − Yugra, Nizhnevartovsk, 628616, Russian Federation,

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

 

Ignaty Andreevich Markin

 

Tyumen State Medical University

50, Odesskaya str., Tyumen, 625023, Russian Federation,

e-mail: iamarkine@outlook.com

 

The paper presents a method to be applied for calculation of maximal local corrosion rate on pipelines internal surface of oil gathering systems according to the data of weight measurements obtained by means of corrosion control samples. As a parameter that characterizes the local corrosion maximum rate, it is proposed to use standard (root mean square) deviation of sampling of differences in corrosion rates among different samples of corrosion control in a cassette of 10 corrosion samples.

 

Keywords: local corrosion; corrosion monitoring; corrosion rate; pipelines of oil gathering systems.

 

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