ISSN 2413-5011

Scientific-technical journal

GEOLOGY, GEOPHYSICS

AND DEVELOPMENT OF OIL AND GAS FIELDS

                                                                                                             published since 1992

January 2017                                            ¹ 1                                    12 issues per year

 

CONTENÒS

 

OIL AND GAS PROSPECTING

 

Borodkin V.N., Kurchikov A.R., Samitova V.I., Nedosekin A.S., Lukashov A.V., Smirnov O.A. Characteristics of geological structure of achimov sequence deposits within Todyttzotinsky depression in the north-western Siberia in order to start exploration-evaluation survey (p. 4-15)

 

Dorofeev N.V., Bochkarev A.V., Filippova P.B., Taldykin S.A., Osipova Yu.S., Ananieva E.V. Differentiation of prospectiveness of poorly explored areas of the middle Caspian sea (p. 16-24)

 

Kerimov V.Yu., Yandarbiev N.Sh., Bondarev A.V., Mustaev R.N., Dmitrievsky S.S. Evaluation of organic carbon content of low permeability shale strata (on the example of the pre-Caucasus khadum suite) (p. 24-31)

 

Penyagin P.V., Stovbun Yu.A., Gribova I.S., Kulikov T.D. Prospects of identification of a large area of petroleum potential in berriasian-valanginian sediments of Gydansky peninsula (p. 31-38)

 

Nemova V.D., Panchenko I.V., Ilin V.S., Smirnova M.E. Review of the results of bazhenov suite development in connection with its geological structure and reservoir conditions (on the example of Mid-Nazym and Salym fields) (p. 38-45)

 

GEOLOGICAL MODELING

 

Dmitrievsky A.N., Karakin A.V., Poveshchenko Yu.A., Kazakevich G.I. Self-oscillating nature of fluid dynamic mode of a sedimentary basin in the area of the pre-Caspian fields location (p. 45-49)

 

DEVELOPMENT OF OIL AND GAS FIELDS

 

Zeigman Yu.V., Sergeev V.V., Ayupov R.R. Classification of physico-chemical methods applied to stimulate oil production according with their effect on a formation system (p. 50-53)

 

Martyushev D.A. Development of the method of on-line determination of production wells flow-rates of carbonate reservoirs (p. 54-56)

 

Feyzullayev A.A., Gojayev A.G., Ismaylova G.G. Spatial heterogeneity of reservoir characteristics of horizon VII of Garadag field due to its use as gas underground storage (p. 57-61)

 

Information on the articles (p. 62-67)

 

 

Information on the articles

 

UDC 553.98(571.1)

 

CHARACTERISTICS OF GEOLOGICAL STRUCTURE OF ACHIMOV

SEQUENCE DEPOSITS WITHIN TODYTTZOTINSKY DEPRESSION

IN THE NORTH-WESTERN SIBERIA IN ORDER TO START

EXPLORATION-EVALUATION SURVEY (p. 4)

 

Borodkin V.N.1, 2, Kurchikov A.R1, Samitova V.I.1

 

1 Trofimuk Institute of Petroleum Geology and Geophysics, the West-Siberian branch, RAS (IPGG, WSB SO RAS)

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

tel.: (345) 246-58-27,

tel./fax: (345) 246-56-02,

e-mail: niigig@tmnsc.ru

 

2 Industrial University of Tyumen

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

 

Nedosekin A.S., Lukashov A.V., Smirnov O.A.

 

LLC "INGEOSERVICE"

 

Based on the data of seismic-geological correlation, the differentiated structure of BP16Ach16 and BP14-15Ach15 clinoforms of Achimovsky sequence within Todyttzotinsky depression is presented, a series of promising areas which are forwarded by recommendation on carrying out survey and assessment work is highlighted.

 

Keywords: Western Siberia; clinoform; reflecting horizon; promising area; recommended wells.

 

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UDC 553.98(262.81+470.47)

 

DIFFERENTIATION OF PROSPECTIVENESS OF POORLY EXPLORED AREAS

OF THE MIDDLE CASPIAN SEA (p. 16)

 

Dorofeev Nikita Vladimirovich,

Bochkarev Anatoly Vladimirovich,

Filippova Polina Borisovna,

Taldykin Sergey Alexandrovich,

Osipova Yulia Sergeevna,

Ananieva Evgenia Vladimirovna

 

LLC "LUKOIL–Engineering"

3, Pokrovsky boulevard, 127055, Moscow, Russian Federation,

tel.: (495) 983-22-86, (495) 620-21-06,

fax: (495) 983-21-41,

e-mail: LUKOIL-Engin@lukoil.com, Anatoly.Bochkarev@Lukoil.com

 

Industrial importance of poorly studied territory of the Middle Caspian Sea waters, directly adjacent to the coast of Kalmykia, and the geological risks of its development are assessed on the basis of the deposits predominant productivity, complex heterogeneous tectonic structure and differentiated approach to the assessment of the potential of any structural element of the considered territory that is located in fundamentally different structural conditions. This approach helps to prevent significant financial losses of the subsoil users from drilling dry wells, not to waste time on their drilling in difficult geological conditions and to focus on the territories really promising for oil and gas. Complex pre-licensing assessment of the poorly studied area made it possible to identify one, out of the eight considered, promising (the western continuation of the Central-Rakushechnoe swell) and two unpromising (structures of North-Rakushechnoe swell and Manych-Darginsky trough) areas. The remaining areas classified by structural features and conditions of formation of hydrocarbon deposits are referred to unpromising areas (Dzhanaysko-South Buzachinskiy depression, Lagansky trough, western dipping of South-Rakushechnoe swell, the southern monocline slope of Karpinsky ridge).

 

Keywords: assessed area; resources evaluation; geological risks; prospects; geological structure; deposits formation conditions.

 

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UDC 550.84

 

EVALUATION OF ORGANIC CARBON CONTENT  OF LOW PERMEABILITY SHALE STRATA

(ON THE EXAMPLE OF THE PRE-CAUCASUS KHADUM SUITE) (p. 24)

 

Kerimov Vagif Yunusovich,

Bondarev Alexander Vladimirovich,

Mustaev Rustam Nailevich,

Dmitrievsky Stanislav Sergeevich

 

Gubkin Russian State University of Oil and Gas

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

e-mail: r.mustaev@mail.ru

 

Yandarbiev Nurdin Shamaevich

 

Lomonosov Moscow State University

 

The article is devoted to the assessment of organic carbon content of low-permeable shale strata on the example of Pre-Caucasus Khadum suite, being a promising sedimentary formation to detect "shale" HC in Russia. Unconventional hydrocarbon resources in low-permeable shale strata are associated with the areas of development of immature potentially "rich" and "very rich" source rocks that are at the initial stage of the main phase of oil accumulation or on the approaches to it. For a reliable assessment of the source rocks generation potential it should be taken into consideration that these rocks during katagenesis and hydrocarbons generation lose some part of their initial content of TOC. And the more are the differences between modern and original TOC values, the greater is the source rock maturity. Knowing the current value of the content of organic matter (OM) in the source rock, hydrogen index, degree of OM transformation and S1 value it is possible to calculate TOC and HI initial values.

 

Keywords: organic carbon; Khadum suite; katagenesis.

 

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UDC 553.98(571.1)(–17)

 

PROSPECTS OF IDENTIFICATION OF A LARGE AREA OF PETROLEUM POTENTIAL

IN BERRIASIAN-VALANGINIAN SEDIMENTS OF GYDANSKY PENINSULA (p. 31)

 

Penyagin P.V., Stovbun Yu.A., Kulikov T.D.

 

LLC "Nedra-Consult"

252, bld. 1, Respublika str., 625014, Tyumen, Russian Federation,

tel.: (3452) 53-24-76,

e-mail: stovbunya@nedraconsult.ru

 

Gribova I.S.

 

JSC "SPC "Nedra"

8/38, Svoboda str., 150000, Yaroslavl, Russian Federation,

tel.: (4852) 72-81-01,

fax: (4852) 32-84-71,

e-mail: nedra@rusgeology.ru

 

By now all large structural traps in Gydansky oil- and gas-bearing territory, that have undergone seismic survey, have already been explored. However, the majority of the identified oil and gas fields refer to small and average ones judging by their reserves. Berriasian-Valanginian and Lower-Middle Jurassic promising oil- and gas-bearing areas, drilled by single deep wells, remain poorly studied. The article presents the results of comprehensive analysis of some specific features of geological structure of Gydansky oil- and gas-bearing territory, repeated processing of archive seismic survey data as well as new geological-geophysical information, got when drilling parametric well No 130. Promising traps are detected in Low-Cretaceous sediments of Gydansky dome, evaluation of their hydrocarbon reserves is made, thus allowing to consider the object as the urgent one where a new large oil- and gas-bearing area should be identified.

 

Keywords: exploration activities; oilfield; deposit; interpretation; seismic survey; structure; resources; Achimovsky sequence.

 

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UDC 622.276:(553.982.2+553.983)

 

REVIEW OF THE RESULTS OF BAZHENOV SUITE DEVELOPMENT

IN CONNECTION WITH ITS GEOLOGICAL STRUCTURE AND RESERVOIR

CONDITIONS (ON THE EXAMPLE OF MID-NAZYM AND SALYM FIELDS)

(p. 38)

 

Nemova Varvara Dmitrievna,

Panchenko Ivan Vladimirovich,

Smirmova Maria Evgenievna

 

Russian Research Geological Petroleum Institute (FGBU "VNIGNI")

36, Entusiastov shosse, 105118, Moscow, Russian Federation,

tel.: (495) 673-17-03,

e-mail: nemova@vnigni.ru

 

Il’in Vladimir Sergeevich

 

CJSC "Modeling and Monitoring of Geological Object" named after V.A. Dvurechensky (CJSC "MiMGO")

21, Entusiastov shosse, 111123, Moscow, Russian Federation,

tel.: (495) 792-35-37,

fax: (495) 792-35-38,

e-mail: ilyin@mimgo.ru

 

This article describes the main aspects of study and development of Bazhenov suite sediments. Brief overview of Bazhenov suite research history is done. Considered The geological structure and lithology of the sequence as well as geochemical characteristics and hydrocarbons distribution features in it are discussed. Conducted Exploitation history of Mid-Nazym and Salym deposits is analyzed. The phenomena of recovery of flow-rates and highly-productive wells’ reservoir pressure in the course of many-year development due to the reservoir energy of well-drained areas from a thermobaric point of view are studied. The relation between the wells’ specific productivity index and the reservoir temperature is identified. The current and perspective approaches to the development and the methods of enhanced oil recovery of Bazhenov suite are considered.

 

Keywords: Bazhenov suite; shale oil; fields development; lithology; stratigraphy; oil reservoir.

 

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UDC 553.98.061.15

 

SELF-OSCILLATING NATURE

OF FLUID DYNAMIC MODE OF A SEDIMENTARY BASIN

IN THE AREA OF THE PRE-CASPIAN FIELDS LOCATION (p. 45)

 

Dmitrievsky Anatoly Nikolaevich,

Karakin Andrey Vladimirovich

 

Oil and Gas Research Institute RAS (OGRI RAS)

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

e-mail: A.Dmitrievsky@IPNG.ru, avkarakin@gmail.ru

 

Poveshchenko Yury Andreevich

 

M.V. Keldysh Institute of Applied Mathematics RAS

4, Miusskaya ploschad, 125047, Moscow, Russian Federation,

e-mail: hecon@mail.ru

 

National Nuclear Research University "Moscow Engineering Physics Institute"

31, Kashirskoye shosse, 115409, Moscow, Russian Federation

 

Kazakevich Gregory Il’ich

 

P.P. Shirshov Institute of Oceanology RAS

36, Nakhimovsky prosp., Moscow, 117997, Russian Federation,

e-mail: gkazakevich@yandex.ru

 

The paper presents the results of the numerical modeling of fluid dynamic mode of the sedimentary basin located in the Eastern board of the Pre-Caspian Lowland and Astrakhan giant carbonate deposit. The fluids flow of enough complex composition in sub-salt layers lying at big depths are studied. The impermeable barriers are located at different levels and have limited sizes. The going upward hydrocarbons retard on the lower cover for some time and then direct towards upper one. It results in formation of giant gas-condensate deposits in the areas with the most proper conditions of hydrocarbons accumulation. The processes of hydrocarbons accumulation and outflux have a self-oscillating mode.

 

Keywords: gas condensate deposits; numerical modeling; fluid dynamics; self-oscillating mode; geological structure.

 

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UDC 622.276.63

 

CLASSIFICATION OF PHYSICO-CHEMICAL METHODS APPLIED

TO STIMULATE OIL PRODUCTION ACCORDING WITH THEIR EFFECT

ON A FORMATION SYSTEM (p. 50)

 

Zeigman Yury Veniaminovich

 

Ufa State Oil Technical University

e-mail: jvzeigman@gmail.com

 

Sergeev Vitaly Vyacheslavovich

 

LLC "VI-ENERGY", Skolkovo Foundation

1, Malevich str., Skolkovo Innovation Center,143026, Moscow, Russian Federation,

e-mail: vsmyn23@gmail.com

 

Ayupov Radmir Ramilevich

 

JSC "RITEK"

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

e-mail: rayupov@ritek.ru

 

The article presents the results of the analysis of the experience obtained when using hydrochloric acid treatments of near-wells’ bottom zones in carbonate and terrigenous reservoirs of oil and gas fields being in development for a long time. The main reasons for low efficiency of geological-technical measures used for wells’ bottom zones treatment of formations by the compositions that stimulate oil production in conditions of the formations’ reserves high depletion are determined. Classification of physicochemical methods of oil recovery enhancement by a mechanism of the impact on a formation system is presented. Detailing of the developed classification according with the technologies of stimulation of the wells’ bottom zones of a formation system is conducted. The detailed classification allows the system analysis of the newest developments in the field of oil recovery enhancement as well as implementation of the program approach to the choice of geological-technical measures for wells.

 

Keywords: classification of methods of oil recovery enhancement; formation system; hydrochloric acid treatment; wells bottom zone of a formation; complex technologies.

 

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UDC 622.276

 

DEVELOPMENT OF THE METHOD OF ON-LINE DETERMINATION

OF PRODUCTION WELLS FLOW-RATES OF CARBONATE RESERVOIRS (p. 54)

 

Martyushev Dmitriy Alexandrovich

 

Perm National Research Polytechnic University

29, Komsomolsky prosp., 614990, Perm, Russian Federation,

tel./fax: (342) 219-82-50,

e-mail: martyushevd@inbox.ru

 

This article presents the results of processing of carbonate reservoirs’ pressure recovery curves (CPR), obtained from four fields of Solikamsk depression (Perm region). Warren – Root method was applied to process CPR and the following main characteristics of natural fractures were defined: fractures opening and their relative capacity. The dependences of the productivity factor dynamics on the change of fractures relative capacity and wells bottom pressure in the deposits were constructed. Based on the results of the obtained dependences it is possible to quickly evaluate the fractures’ relative capacity and Kprod. without involving the data of hydrodynamic studies, to track on-line the fracturing changes dynamics and to timely take the measures, providing control over operation of wells and fields development process in the whole.

 

Keywords: carbonate reservoir; coefficient of wells productivity; relative capacity of fractures; hydrodynamic studies of wells; wells bottom pressure.

 

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UDC 553.981

 

SPATIAL HETEROGENEITY OF RESERVOIR CHARACTERISTICS

OF HORIZON VII OF GARADAG FIELD DUE TO ITS USE

AS GAS UNDERGROUND STORAGE (p. 57)

 

Feyzullayev Akper Akperovich,

Ismaylova Gyulhar Gajiyevna

 

Institute of Geology and Geophysics of the National Academy of Sciences of Azerbaijan

119, Javid prosp., AZ1143, Baku, Republic of Azerbaijan,

tel.: (99412) 510-56-20,

fax: (99412) 497-52-85,

e-mail: fakper@gmail.com, gulkhar@rambler.ru

 

Gojayev Araz Gidaiat

 

"Azneft" Production Department of the State Oil Company of Azerbaijan

105, A. Neimatulla str., AZ1033, Baku, Republic of Azerbaijan,

tel.: (99412) 521-00-00,

e-mail: araz.qocayev@socar.az

 

Based on the analysis of litho-facial and VII horizon characteristics of productive sequence (productive sequence (PS-Lower Pliocene) of Garadag gas condensate field, used as an underground gas storage (UGS), the article identifies its macro- and micro-heterogeneity, manifested by considerable variability in the space of the effective thickness of the horizon, gross sand, granulometric composition, porosity, permeability and carbonate content of rocks. It is proved that one of the main factors significantly affecting characteristics of the horizon rocks is carbonate cement content greater than 15…17 %. The influence of spatial variability of gross sand and rocks characteristics on wells operational mode the accounting of which can significantly improve the efficiency of Garadag UGS operation is substantiated.

 

Keywords: gas-condensate field; gas underground storage; Garadag; reservoir characteristics; spatial heterogeneity; well; productivity.

 

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