ISSN 2413-5011

Scientific-technical journal

GEOLOGY, GEOPHYSICS

AND DEVELOPMENT OF OIL AND GAS FIELDS

                                                                                                            published since 1992

May 2016                                                ¹ 5                                    12 issues per year

 

CONTENÒS

 

OIL AND GAS PROSPECTING

 

Putilov I.S., Ladeyshchikov S.V. Technological innovations of facies prognostication on the basis 3D high-density seismic survey (p. 4-8)

 

Nezhdanov A.A., Perezhogin A.S., Polyn I.I. Determination of volumetric parameters for Senonian gas deposits through gravity logging (p. 8-14)

 

GEOPHYSICAL RESEARCH WORK

 

Shumskaite M.Yo., Bobrov P.P., Lapina A.S. Change of dielectric permittivity and nuclea magnetic resonance (NMR) signal of wet powders of the quartz granules in case of water content increase or decrease (p. 15-20)

 

GEOCHEMICAL RESEARCH WORK

 

Karaseva T.V., Maslov A.V., Ronkin Yu.L. Trace elements distribution in sedimentary rocks of deep horizons of SG-7 (En-Yakhinskaya) well (p. 20-27)

 

DEVELOPMENT OF OIL AND GAS FIELDS

 

Popov S.N. Development of the model of fracture permeability change under the influence of mechanical-chemical effects when ingecting water into a carbonate reservoir (p. 28-35)

 

Kravtsov Ya.I., Marfin E.A., Abdrashitov A.A. Efficiency enhancement of vapor-gravitational method due to wave effect on the producing formation (p. 35-39)

 

THEORETICAL ASPECTS IN GEOLOGY

 

Gudzenko V.T., Varenichev A.A., Gromova M.P. Gas hydrates. Information-analytical review (p. 39-68)

 

Information on the articles (p. 68-72)

 

 

Information on the articles

 

UDC 553.98(470.53):551.7.022

 

TECHNOLOGICAL INNOVATIONS OF FACIES PROGNOSTICATION

ON THE BASIS 3D HIGH-DENSITY SEISMIC SURVEY (ð. 4)

 

Putilov Ivan Sergeevich,

Ladeyshchikov Sergey Viktorovich

 

"PermNIPIneft", a branch of LLC "LUKOIL-Engineering" in the city of Perm

29, Sovetskaya Armiya str., 614066, Perm, Russian Federation,

tel.: (342) 233-64-58,

e-mail: Ivan.Putilov@pnn.lukoil.com, Sergei.Ladeyshikov@pnn.lukoil.com

 

The article discusses the ways of facies zoning of Nizhnebobrikovsky deposits according to the data of litho-facies core analysis, well logging and 3D full-azimuth high-density seismic survey. Some approaches to perfection of facies prediction, based on the method of collectors’ multivariate prediction, are proposed.

 

Key words: oil field; 3D full-azimuth high-density seismic survey; litho-facies core analysis; facies; effective thickness; clustering; seismic attributes; collectors’ multivariate prediction.

 

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UDC 553.98:553.048:550.831

 

DETERMINATION OF VOLUMETRIC PARAMETERS

FOR SENONIAN GAS DEPOSITS THROUGH GRAVITY LOGGING (ð. 8)

 

Nezhdanov Alexey Alexeevich,

Perezhogin Alexander Sergeevich

 

LLC "Gazprom Geologorazvedka"

70, Herzen str., 625000, Tyumen, Russian Federation,

tel.: (345) 254-04-63,

fax: (345) 254-04-70,

e-mail: a.nezhdanov@ggr.gazprom.ru, a.peråzhogin@ggr.gazprom.ru

 

Polyn Ivan Ivanovich

 

CJSC"Gravirazvedka"

29, bld. 3, Molodtsov str., 129081, Moscow, Russian Federation,

tel.: (495) 473-28-81,

e-mail: mail@gravi.ru

 

When determining volumetric parameters of argillaceous-siliceous reservoir rocks of Senonian gas deposits, in particular residual water content, by conventional methods applications, some complications appear due to high shale content and porosity failure of the said rocks in surface conditions. Medvezhie field serves an example for proving the possibility of volumetric parameters definition (gas saturation factors, residual water content, net gas pays) in formation conditions through the density by conducting high-precision gravity logging complemented by lab core data studies. The results obtained allow more throughly than before assessing the resource potential of Medvezhie Senonian gas pool. However it is presumed that cost-efficient development of Senonian gas deposits in low-permeable argillaceous-siliceous reservoirs will require application of “shale” technologies.

 

Key words: Senonian; gravity logging; gas saturation; Medvezhie field; siliceous rocks.

 

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UDC 538.956+550.8.055

 

CHANGE OF DIELECTRIC PERMITTIVITY AND NUCLEA MAGNETIC

RESONANCE (NMR) SIGNAL OF WET POWDERS OF THE QUARTZ GRANULES

IN CASE OF WATER CONTENT INCREASE OR DECREASE (ð. 15)

 

Shumskaite Mariya Yonovna

 

Federal State Budgetary Institution of Science A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian branch of the Russian Academy of Sciences

3, Akademika Koptyuga prosp., 630090, Novosibirsk, Russian Federation,

e-mail: ShumskaiteMI@ipgg.sbras.ru

 

Bobrov Pavel Petrovich,

Lapina Anastasiya Sergeevna

 

Federal State Budgetary Educational Institution of Higher Education Omsk State Pedagogical University

14, Tukhachevsky naberezhnaya, 644099, Omsk, Russian Federation,

e-mail: bobrov@omgpu.ru, nastyalap@gmail.com

 

The paper presents the results of both dielectric measuring method and nuclea magnetic resonance (NMR) method in case of gradual saturation and drying of quartz powders granules of different size. It is shown that dielectric permeability and NMR-signal are non-unique functions of water saturation coefficient. The analysis of data obtained allows assessing the surface relaxivity of the quartz powders, the vales of which agree with the table data as well as proves the fact that saturation and drying the samples starts with big pores, i.e. at the same water saturation coefficient, got while saturation and drying the pores of different in size appear filled. This causes different radiuses of drops surface curvature and different contact angles of wetting thus, finally, being the main reason for hysteresis of the dielectric permeability and NMR-signal.

 

Key words: dielectric permeability; water saturation; surface relaxivity; NMR-relaxometry.

 

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UDC 553.98.064(571.1)

 

TRACE ELEMENTS DISTRIBUTION IN SEDIMENTARY ROCKS

OF DEEP HORIZONS OF SG-7 (EN-YAKHINSKAYA) WELL (ð. 20)

 

Karaseva Tatyana Vladimirovna

 

Perm State National Research University (PSNRU)

15, Bukirev str., 614990, Perm, Russian Federation,

tel.: (342) 239-65-43,

e-mail: tvkaras@psu.ru

 

Maslov Andrey Victorovich,

Ronkin Yury Lazarevich

 

Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences (IGG UB RAS)

15, Vonsovsky str., 620016, Ekaterinburg, Russian Federation,

e-mail: amas2004@mail.ru

 

The paper presents the evidence that SG-7 well has no any clearly marked zones with different distribution of rare and trace elements (especially K, U and Th) in the depth below 3500 m. Occurrence of Sc, V, Cr, Ni, and Co concentrations in mudstones and siltstones below 3600 m, as compared to PAAS, indicates that their composition contains a certain portion of products, being the result of washing-out of the ultra-basic or basic igneous rocks, but it is impossible to determine whether they represent local washing-out sources or pass to sedimentation area from afar only on the basis of geochemical data about the argillaceous rocks composition. Distribution of trace elements in the main oil and gas mother suites below 3900 m substantially is essentially comparable. This fact makes it possible to assume that the processes of elision katagenesis had no significant effect on the initial concentrations of trace elements in clay rocks of SG-7 well. Absence of a strong positive correlation between the Corg. and V is possible due to dominant role of humus organic matter in rocks as well as significant realization of oil generation potential of Jurassic and Triassic deep horizons opened by SG-7 well.

 

Key words: SG-7 (En-Yakha) well; clay rocks; distribution of rare and trace elements.

 

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UDC 622.02:531+622.83

 

DEVELOPMENT OF THE MODEL OF FRACTURE PERMEABILITY

CHANGE UNDER THE INFLUENCE OF MECHANICAL-CHEMICAL EFFECTS

WHEN INGECTING WATER INTO A CARBONATE RESERVOIR (ð. 28)

 

Popov Sergey Nikolaevich

 

Oil and Gas Research Institute Russian Academy of Sciences (OGRI RAS)

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

tel.: (499) 135-71-81,

e-mail: popov@ipng.ru

 

The paper presents the results of experiments carried out to determine the changes of core samples permeability selected from a carbonate reservoir. A significant effect of the combined influence of effective stresses and rock dissolution process on fractures permeability reduction is shown. The data of laboratory studies were processed by a special method which takes into account the mutual influence of chemical and mechanical effects. The final result of the work is the dependences, describing the changes of a fracture aperture from the contact area of the fracture walls, which can be used in future to predict the changes of fractured reservoir-formation permeability.

 

Key words: mechanical-chemical effects; rock dissolution; fracture aperture; effective stresses; water injection.

 

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UDC 622.276.6

 

EFFICIENCY ENHANCEMENT OF VAPOR-GRAVITATIONAL METHOD

DUE TO WAVE EFFECT ON THE PRODUCING FORMATION (ð. 35)

 

Kravtsov Yakov Isaakovich,

Marfin Evgeny Alexandrovich,

Abdrashitov Alexey Allanovich

 

Kazan Scientific Centre of the Russian Academy of Sciences (KazanSC of RAS)

2/31, Lobachevsky str., 420111, Kazan, Tatarstan, Russian Federation,

tel.: (843) 292-75-05,

e-mail: marfin_ea@mail.ru

 

The paper presents a way to improve the efficiency of high-viscous oil production at the expense of combination of vapor-gravitational drainage method with producing formation wave stimulation. The processes of stationary waves formation in an injection well and the energy distribution of elastic vibrations in a productive formation through a well’s wall are described. Some calculations of the distribution of the pressure fluctuations amplitude in a productive formation are given on the example of Ashalchinsky field. The presence of the optimal values of the wave effect frequency on a formation is found. This fact ensures the possibility of decision-making as per the stimulation mode choice and some technical means of its implementation.

 

Key words: high-viscous oil; vapor-gravitational drainage (SAGD); wave effect; frequency of oscillation; amplitude; downhole transmitting source.

 

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UDC 662.67

 

GAS HYDRATES. INFORMATION-ANALYTICAL REVIEW (ð. 39)

 

Gudzenko Viktor Trifonovich,

Varenichev Anatoly Alexeevich,

Gromova Marina Petrovna

 

All-Russian Institute of Scientific and Technical Information, Russian Academy of Sciences (VINITI RAN)

20, Usievich str., 125190, Moscow, Russian Federation,

tel.: (499) 155-44-27,

e-mail: avar@viniti.ru

 

Current literature devoted to gas hydrates (methane hydrates) is reviewed. Gas hydrates specific features, predicted resources, areas of gas hydrates occurrence and their characteristics, methods of exploration and discovery and advanced technologies of development of gas hydrates deposits in order to produce methane are discussed. Environmental risks associated with gas hydrates are described. Possible time of their involvement in industrial development as an energy feedstock is considered.

 

Key words: gas hydrates; unconventional sources of natural gas; predicted resources; geological and geophysical studies; conditions of gas hydrates generation.

 

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