ISSN 0207-2351

Scientific-technical journal

OILFIELD ENGINEERING

                                                                                                       published since 1965

September 2019                               ¹ 9 (609)                            12 issues per year

 

CONTENÒS

 

DRILLING TECHNIQUE AND TECHNOLOGY

 

Yudchits V.V., Litovar R.E., Fattakhov M.M., Yunusov R.R., Nazarov M.V. Search for new technologies to be applied in development drilling in order to attract hard to recover reservs into development (p. 5‑9)

 

Bakirov D.L., Burdyga V.A., Fattakhov M.M., Gritsay G.N. To the problem of the assessment of wells cementing quality (p. 10‑13)

 

Shcherbakov A.V., Abdrakhmanov R.R., Babushkin E.V., Kuznetsov V.G. Specific features of design of energy-saving profiles of wells with complex spatial configuration (p. 14‑17)

 

Bakirov D.L., Burdyga V.A., Babushkin E.V., Fattakhov M.M., Vaulin V.G., Volkova L.A., Sharipova E.F. Drilling mud for the construction of deep exploration wells in the north of Western Siberia (p. 18‑22)

 

DEVELOPMENT OF OIL AND GAS-OIL FIELDS

 

Rozbaev D.A., Semenov S.V., Kornev A.A., Andronov Yu.V. Methodological approach to the quantitative estimation of the efficient water injection (p. 23‑29)

 

Zakharova N.P., Fufaev S.A., Demyanenko N.A., Galiev M.M. Analysis of the results of the implementation of the "formation fluids seggregation" technology at the deposits of the Western Siberia on the example of Kochevsky, Vostochno-Pridorozhnoe and Povkhovsky fields (p. 30‑41)

 

METHODS OF PRODUCING EFFECT ON A DEPOSIT AND RAISING OIL RECOVERY

 

Sabitov R.M., Rodionov A.V., Shabelyansky V.A. Multi-interval hydraulic sand-blasting perforation of wells with a selective hydraulic fracturing of a formation. Results of application. Prospects (p. 42‑46)

 

Mulyavin S.F., Zemtsov Yu.V., Mazitov R.F., Khoryushin V.Yu. Some specific features of the engineering support and optimal design selection of flow-deviating compositions injection (p. 47‑51)

 

TECHNIQUE AND TECHNOLOGY OF OIL PRODUCTION

 

Vakhrushev V.V., Melnikov V.N., Moskvitin S.A., Kutelnikova D.A. Assessment of various methods applicability for calculation of a horizontal well flow-rate in conditions of low and high performable reservoirs (p. 52‑58)

 

Mambetov S.F., Ignatiev A.M. Drain forming thermotropes in the technologies of the injection profile alighnment for the conditions of low-permeable formations in the fields of LLC "LUKOIL–Western Siberia". From research work to practical application (p. 59‑62)

 

GATHERING, TRANSPORTATION AND PREPARATION OF OIL, GAS AND WATER

 

Bortnikov A.E., Kordik K.E., Elizarov A.V., Akhmadeev A.A., Sayfutdinov A.F., Vishnyakov A.Yu. Results of the experimental-industrial application of the integrated model in the pilot section of the Yuzhno-Jagunsky field of the "Kogalymneftegaz" territorial-production department of LLC "LUKOIL−Western Siberia" (p. 63‑68)

 

Ishkov A.A., Anikin G.V. Comparison of the horizontal natural-acting tubular "HNAT" system functioning, filled in by carbon dioxide and ammonia (p. 69‑75)

 

 

Information on the articles

 

UDC 622.276.346+622.24.085.24          DOI: 10.30713/0207-2351-2019-9(609)-5-9

 

SEARCH FOR NEW TECHNOLOGIES TO BE APPLIED IN DEVELOPMENT DRILLING
IN ORDER TO ATTRACT HARD TO RECOVER RESERVS INTO DEVELOPMENT (p. 5)

 

Vitaliy Victorovich Yudchits,

Rodion Evgenievich Litovar,

Marsel Masalimovich Fattakhov

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: YudchitsVV@tmn.lukoil.com; LitovarRE@tmn.lukoil.com

 

Radmir Rufovich Yunusov,

Mikhail Victorovich Nazarov

 

LLC "LUKOIL−Western Siberia"

20, Pribaltiyskaya str., Kogalym, 628486, Tyumen region, Khanty-Mansi autonomous territory – Yugra, Russian Federation,

e-mail: Radmir.Unusov@lukoil.com; Mikhail.Nazarov@lukoil.com

 

Horizontal wells with multi-stage hydraulic fracturing of a formation (HW MSHF) and multi-lateral wells have been actively drilled in the fields of LLC "LUKOIL−Western Siberia". Implementation of these technologies provided attraction of the Jurassic and Achimov horizons reserves into development. In 2018 the portion of oil produced from these horizons overreached 30 % of the total oil production of LLC "LUKOIL−Western Siberia". Prospecting of new technologies and updating of the applied ones when drilling wells is constantly going on in the fields of LLC "LUKOIL−Western Siberia", thus providing attraction of earlier non-drained reserves into development. Well, several multi-lateral wells with multi-stage hydraulic fracturing of a formation (MSW with MSHF) were successfully drilled and developed in 2018.

 

Keywords: complex design wells; multi-lateral wells; horizontal wells; multi-lateral wells with multi-stage hydraulic fracturing of a formation.

 

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UDC 622.245.48          DOI: 10.30713/0207-2351-2019-9(609)-10-13

 

TO THE PROBLEM OF THE ASSESSMENT OF WELLS CEMENTING QUALITY (p. 10)

 

Daniyar Lyabipovich Bakirov, Cand. of tech. sci.,

Vitaly Aleksandrovich Burdyga, Cand. of tech. sci.,

Marsel Masalimovich Fattakhov,

Grigory Nikolaevich Gritsay

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: BakirovDL@tmn.lukoil.com; BurdygaVA@tmn.lukoil.com; FattahovMM@tmn.lukoil.com; GritsayGN@tmn.lukoil.com

 

Obviously, the application of only geophysical methods allows only an indirect assessment of the quality of casing strings cementing. The final conclusion about the reliability of the tightness of wells’ annular space insulation should be carried out on a combination of technological, geophysical and field geophysical researches results. The method proposed in the paper provides reduction of uncertainties when specifying the causes, as well as maintenance of statistics and comparison of the quality of the work on casing strings cementing performed by contractors.

 

Keywords: casing strings cementing; annulus circulation of formation fluids; well cementing.

 

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UDC 622.243.23.001          DOI: 10.30713/0207-2351-2019-9(609)-14-17

 

SPECIFIC FEATURES OF DESIGN OF ENERGY-SAVING PROFILES OF WELLS
WITH COMPLEX SPATIAL CONFIGURATION (p. 14)

 

Andrey Valerievich Shcherbakov,

Ruslan Rafikovich Abdrakhmanov,

Eduard Valerievich Babushkin, Cand. of tech. sci.

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: shcherbakovav@tmn.lukoil.com; abdrahmanovrr@tmn.lukoil.com; babushkinEV@tmn.lukoil.com

 

Vladimir Grigorievich Kuznetsov, Dr. of tech. sci, professor

 

Federal State Budget Institution of Higher Education "Tyumen industrial University"

70, Melnikayte str., Tyumen, 625039, Russian Federation,

e-mail: kuznetsovvg@tyuiu.ru

 

The paper considers the approaches to the design that provide optimization of wells profiles, geometrical parameters (zenith angle, curvature intensity) to reduce the loads on the drilling tool, drilling and construction costs.

 

Keywords: energy saving profile; wells of complex spatial configuration; multilateral wells; multi-hole wells; modeling of the drilling tool; profile design.

 

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UDC 622.244.499          DOI: 10.30713/0207-2351-2019-9(609)-18-22

 

DRILLING MUD FOR THE CONSTRUCTION OF DEEP EXPLORATION WELLS
IN THE NORTH OF WESTERN SIBERIA (p. 18)

 

Daniyar Lyabipovich Bakirov, Cand. of tech. sci.,

Vitaliy Aleksandrovich Burdyga, Cand. of tech. sci.,

Eduard Valerievich Babushkin, Cand. of tech. sci.,

Marsel Masalimovich Fattakhov,

Vladimir Gennadievich Vaulin,

Lyudmila Anatolievna Volkova,

Elza Fanilevna Sharipova

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: BakirovDL@tmn.lukoil.com; BurdygaVA@tmn.lukoil.com; BabushkinEV@tmn.lukoil.com; Fattahovmm@tmn.lukoil.com; VaulinVG@tmn.lukoil.com; VolkovaLA@tmn.lukoil.com; SharipovaEF@tmn.lukoil.com

 

The construction of deep wells in the North of Western Siberia is associated with a number of complications associated with the peculiarities of the geological section: the alternation of clay and sand-silt rocks prone to swelling and destruction under the action of mud filtrate. During drilling, scree and landslides, absorption of drilling mud, oil and gas occurrences were recorded. Taking into account the existing experience of drilling in conditions of abnormally high reservoir pressures and high temperatures, a drilling fluid based on potassium formate has been developed, which has sufficient thermal stability, high density, inhibitory ability and low resistance to the flow of the solution. The developed drilling fluid is resistant to biodegradation, environmentally safe, contains potassium formate in optimal concentration, which reduces the cost of the solution compared to other solutions of similar composition.

 

Keywords: drilling mud; a deep well; formats; abnormally high formation pressure; high temperature; weighted drilling mud; high inhibited drilling mud.

 

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UDC 622.276.43          DOI: 10.30713/0207-2351-2019-9(609)-23-29

 

METHODOLOGICAL APPROACH TO THE QUANTITATIVE ESTIMATION
OF THE EFFICIENT WATER INJECTION (p. 23)

 

Dmitry Alimovich Rozbaev,

Sergey Viktorovich Semenov,

Andrey Anatolievich Kornev,

Yury Vladimirovich Andronov

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: RozbaevDA@tmn.lukoil.com; SemenovSV@tmn.lukoil.com; KornevAA@tmn.lukoil.com; AndronovYV@tmn.lukoil.com

 

The article is devoted to the actual problem of estimation of the efficiency of water injection volumes in oil fields developed using reservoir pressure maintenance systems. Based on the generalization of the available experience, for the terminology unambiguity, the definitions of total, efficient and inefficient water injection have been developed. The concept of distribution of water injection inefficient rate into three components – surface, technical and technological losses has been proposed. The standard decision-making scheme that is used when analyzing the inefficient water injection, which includes the main methods of quantifying its volumes has been developed. The results of computational experiments on the reservoir element hydrodynamic model and the possibility of their use when analyzing the inefficient injection in case of the absence of an actual reservoir hydrodynamic model or when making operational decisions are described.

 

Keywords: methodological approach; water-flooding; system of a reservoir pressure maintenance; efficient water injection; water injection losses; hydrodynamic modeling; geological-technical measures program.

 

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UDC 622.276.43          DOI: 10.30713/0207-2351-2019-9(609)-30-41

 

ANALYSIS OF THE RESULTS OF THE IMPLEMENTATION OF THE "FORMATION FLUIDS SEGGREGATION" TECHNOLOGY AT THE DEPOSITS OF THE WESTERN SIBERIA ON THE EXAMPLE OF KOCHEVSKY, VOSTOCHNO-PRIDOROZHNOE AND POVKHOVSKY FIELDS (p. 30)

 

Nataliya Pavlovna Zakharova,

Sergey Andreevich Fufaev

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

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

 

Nikolay Aleksandrovich Demyanenko, Cand. of tech. sci.

 

Sukhoy State Technical University of Gomel

48, Oktyabrya prosp., Gomel, 246746, Republic of Belarus,

e-mail: demyanenko.1953@mail.ru

 

Marat Marselevich Galiev

 

"Kogalymneftegaz" Territorial Production Department (TPD) of LLC "LUKOIL−Western Siberia"

6, Druzhba narodov str., Kogalym, 628486, Tyumen region, Khanty-Mansi autonomous territory − Yugra, Russian Federation,

e-mail: Marat.Galiev@lukoil.com

 

The paper considers the results of pilot-field work on long-term shutdowns of production and injection wells in three deposits of the Western Siberia deposits applying the "Segregation of formation fluids" technology. The effect of the deposits geological structure and operational modes on the segregation process and the effectiveness of the technology was assessed.

 

Keywords: enhanced oil recovery; non-stationary water-flooding; segregation of formation fluids; geological-physical characteristics of productive strata; coefficient of productivity.

 

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UDC 622.276.66ÑÌ          DOI: 10.30713/0207-2351-2019-9(609)-42-46

 

MULTI-INTERVAL HYDRAULIC SAND-BLASTING PERFORATION OF WELLS WITH A SELECTIVE HYDRAULIC FRACTURING OF A FORMATION. RESULTS OF APPLICATION. PROSPECTS (p. 42)

 

Ramil Magirovich Sabitov,

Anton Vladimirovich Rodionov,

Vladimir Aleksandrovich Shabelyansky

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: SabitovRM@tmn.lukoil.com; RodionovAV@tmn.lukoil.com; ShabelyanskiVA@tmn.lukoil.com

 

The paper proposes a new approach to the implementation of a formation hydraulic fracturing in wells with horizontal termination. The technology allows spot-on treatments of hydraulic fracturing, thereby increasing the drainage zone, including those from stagnant sections of the formation that are multiply differ in reservoir properties. The method was tested in five wells, where it proved its effectiveness.

 

Keywords: oil; hydraulic fracturing of a formation; highly permeable channels; contact water-saturated interlayers.

 

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UDC 622.276.43:678+622.276.432          DOI: 10.30713/0207-2351-2019-9(609)-47-51

 

SOME SPECIFIC FEATURES OF THE ENGINEERING SUPPORT AND OPTIMAL DESIGN SELECTION OF FLOW-DEVIATING COMPOSITIONS INJECTION (p. 47)

 

Semen Fedorovich Mulyavin, Dr. of tech. sci.,

Yury Vasilevich Zemtsov, Cand. of tech. sci.

 

Federal State Budget Institution of Higher Education "Tyumen industrial University"

70, Melnikayte str., Tyumen, 625039, Russian Federation,

e-mail: muljavinsf@tyuiu.ru; yvzemtsov@tnnc.rosneft.ru

 

Ruslan Faritovich Mazitov,

Vadim Yurevich Khoryushin

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: MazitovRuF@tmn.lukoil.com, HoryushinVY@tmn.lukoil.com

 

The methods that are applied to regulate injection of flow-deviating compositions, providing efficiency increase of the measures used to change the filtration flows, are considered. The instruments for regulating the injection of flow deviating compounds as well as their effect on the efficiency are presented.

 

Keywords: oil recovery enhancement; water inflow limitation; physicochemical methods of impact; flow-deviation technologies; flow-deviation compounds; design of the injection of flow deviation compounds.

 

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UDC 622.276.346          DOI: 10.30713/0207-2351-2019-9(609)-52-58

 

ASSESSMENT OF VARIOUS METHODS APPLICABILITY FOR CALCULATION OF A HORIZONTAL WELL FLOW-RATE IN CONDITIONS OF LOW AND HIGH PERFORMABLE RESERVOIRS (p. 58)

 

Vladimir Vitalievich Vakhrushev,

Vitaliy Nikolaevich Melnikov,

Sergey Aleksandrovich Moskvitin,

Dinara Anvarovna Kutelnikova

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: VahrushevVV@tmn.lukoil.com; MelnikovVN@tmn.lukoil.com; MoskvitinSA@tmn.lukoil.com; KutelnikovaDA@tmn.lukoil.com

 

The article is devoted to the problem of the applicability of various analytical techniques for forecasting the flow rate of a horizontal well in conditions of low and high permeability formations on the example of the AV1-2 facility at the Nivagalsky field. The paper comparatively analyzes the results of flow rates calculations with the real data on horizontal wells based on which the dependences of the obtained results on the permeability for each of the methods were revealed, and suggestions were made to increase the reliability of the results in some separate ranges.

 

Keywords: horizontal well; debit calculation; formula S.D. Joshi – M.J. Economides (1991); formula Yu.P. Borisov (1964); formula F.M. Giger (1984); formula G.I. Renard – J.M. Dupuy (1990); formula Butler (1994); formula Furui (2003); permeability coefficient; anisotropy.

 

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UDC 622.276.438:628.162.97          DOI: 10.30713/0207-2351-2019-9(609)-59-62

 

DRAIN FORMING THERMOTROPES IN THE TECHNOLOGIES OF THE INJECTION PROFILE ALIGHNMENT FOR THE CONDITIONS OF LOW-PERMEABLE FORMATIONS
IN THE FIELDS OF LLC "LUKOIL–WESTERN SIBERIA".
FROM RESEARCH WORK TO PRACTICAL APPLICATION (p. 59)

 

Sergey Fanilovich Mambetov,

Anton Mikhailovich Ignatiev

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

19/17, Tsentralnaya str., Kogalym, 628483, Khanty-Mansi autonomous territory − Yugra, Russian Federation,

e-mail: MambetovSF@tmn.lukoil.com; gnatievAM@tmn.lukoil.com

 

Due to the low reservoir properties of the layers, occurring at the depths of 2700 m and lower, there is a problem of the efficiency of oil displacement by injected water. Often, the water-flooding of such objects is accompanied by the so-called "dagger-like breakthroughs" of water to the bottom holes of producing wells. As a result, oil-saturated zones with non-involved hydrocarbon reserves during filtration remain in the productive layer. In the past few years, to solve such problems, oil and gas producing companies used sediment-forming thermotropic compositions. The paper discusses the experience of one of these technologies’ application, which has positively recommended itself in the fields of LLC "LUKOIL–Western Siberia" in the field of enhanced oil recovery.

 

Keywords: reservoir characteristics; injectivity profile alignment; oil displacement; redistribution of filtration flows; water barrier; coverage of a reservoir by water-flooding; recovery of rock permeability.

 

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UDC 622.276.012          DOI: 10.30713/0207-2351-2019-9(609)-63-68

 

RESULTS OF THE EXPERIMENTAL-INDUSTRIAL APPLICATION OF THE INTEGRATED MODEL
IN THE PILOT SECTION OF THE YUZHNO-YAGUNSKY FIELD OF THE "KOGALYMNEFTEGAZ" TERRITORIAL-PRODUCTION DEPARTMENT OF LLC "LUKOIL–WESTERN SIBERIA" (p. 63)

 

Alexander Egorovich Bortnikov,

Kirill Evgenievich Kordik

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: BortnikovAE@tmn.lukoil.com; KordikKE@tmn.lukoil.com

 

Alexey Vladimirovich Elizarov,

Aynur Aydarovich Akhmadeev,

Azat Firdavisovich Sayfutdinov

 

"Kogalymneftegaz" Territorial Production Department (TPD) of LLC "LUKOIL−Western Siberia"

6, Druzhba narodov str., Kogalym, 628486, Tyumen region, Khanty-Mansi autonomous territory − Yugra, Russian Federation,

e-mail: Aleksey.Elizarov@lukoil.com; Aynur.Akhmadeev@lukoil.com; Azat.Sayfutdinov@lukoil.com

 

Alexey Yurievich Vishnyakov

 

LLC "LUKOIL−Engineering"

3a, Permskaya str., Perm, 614015, Russian Federation,

e-mail: Aleksej.Vishnyakov@pnn.lukoil.com

 

The paper presents the main results of work on the construction of an integrated model at the pilot site (oil and gas production workshop No. 2) of the Yuzhno-Yagunsky field of the TPD "Kogalymneftegaz" of LLC "LUKOIL–Western Siberia". The preliminary results of the pilot operation of the integrated model are summarized. The integrated model is used as an instrument for performing forecast calculations of oil production levels with a planning horizon of up to one year. Besides, the integrated model was used for making decisions on the ground infrastructure development of the pilot section of the Yuzhno-Yagunskoye field in terms of substantiation of the construction of preliminary water discharge facilities, reconstruction of the oil collection network and the choice of directions for well production transportation.

 

Keywords: integrated modeling; building a simplified reservoir model using the material balance method; modeling of wells and objects of ground infrastructure; optimization of well and facilities operational mode.

 

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UDC 622.276.012:69(211)          DOI: 10.30713/0207-2351-2019-9(609)-69-75

 

COMPARISON OF THE HORIZONTAL NATURAL-ACTING TUBULAR "HNAT" SYSTEM
FUNCTIONING, FILLED IN BY CARBON DIOXIDE AND AMMONIA (p. 69)

 

Alexey Andreevich Ishkov

 

LUKOIL–Engineering Limited KogalymNIPIneft Branch Office in Tyumen

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

e-mail: IshkovAA@tmn.lukoil.com

 

Gennadiy Vladimirovich Anikin, Cand. of phys.-math. sci.

 

Institute of the Earth’s cryosphere of Tyumen Scientific Center SB RAS

86, Malygin str., Tyumen, 625000, Russian Federation,

e-mail: Anikin@ikz.ru

 

Based on a mathematical model, a numerical simulation of a horizontal naturally-acting tubular system, charged by various refrigerants – ammonia and carbon dioxide, was carried out. For each of the options, the values of the upper and lower critical thermal loads are determined. The temperature characteristics of the system are found when the evaporator is exposed to a heat flux equal to the critical one.

It has been established that the horizontal natural-acting tubular system ("HNAT") that works on carbon dioxide has lower critical thermal loads, as well as a lower average evaporator temperature, thus together determining a more stable operation of the system compared to the "HNAT" system filled by ammonia.

The results obtained prove the fact that carbon dioxide use in "HNAT" systems is more efficient. show that using. Moreover, the result obtained can be used when projecting a horizontal natural-acting tubular system ("HNAT") and calculating their interaction with the facilities built in oil and gas fields. Accounting of the data obtained contributes to the optimization of "HNAT" system installation, which is reflected in its final cost of placement in the object and the effectiveness of maintaining the bearing capacity of the foundations.

 

Keywords: field development; heat and mass transfer; horizontal natural-acting tubular ("HNAT"); modeling; ammonia; carbon dioxide; permafrost; foundations; bases.

 

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