Geology, Geophysics and Development of Oil and Gas Fields

Current estimates of resources are based on the assumption that generated hydrocarbons amount is calculated by means of reconstruction of geothermal regime of source sediments. The purpose of the researches is to define the influence of a century course of temperatures on the terrestrial surface (paleoclimate) on the geothermal regime of Bazhenov suite. Paleoclimate role assessment is carried out on the basis of the analysis of the results variability of paleotemperature modeling, identification of paleo-sources Bazhenov oils generation in deep wells sections of Tomsk and Novosibirsk areas by geothermal criterion. It is revealed that the thermal history reconstruction of source deposits without paleoclimate accounting do not agree with the "maximum paleothermometry", e.g. data of vitrinite reflectance and petroleum potential of sections of Luginetsky and Verkh-Tarsky fields. Use, while renovations, of "local" secular variation of temperatures of the earth surface, built for the South Siberian paleoclimate zone, significantly clarifies the density of predicted oil resources. The "Local" secular variation is recommended to be taken into account when assessing the resources by volumetric-genetic method on the land of the southeast part of the Western Siberia.

Key words: paleoclimate; paleotemperature modeling; oil-source Bazhenov suite; hearth generation paleo-source; resources; the south-east part of the Western Siberia.

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UDC 550.361:553.982

SULFUR OILS OF THE WORLD – SOME SPECIFIC FEATURES

OF DISTRIBUTION, GEOLOGICAL CONDITIONS OF OCCURRENCE AND

THEIR PHYSICAL AND CHEMICAL PROPERTIES (р. 12)

Yashchenko Irina Germanovna

Institute of Petroleum Chemistry, Siberian branch of the Russian Academy of Sciences

4, Akademichesky prosp., 634021, Tomsk, Russian Federation,

fax: (382) 249-14-57,

e-mail: sric@ipc.tsc.ru

It is known that the world's reserves of easy-to-recover, light and low-viscous oils are almost exhausted and the necessary increase in oil production is generally possible at the expense of hard-to-recover oil reserves which include sulfur oil. This fact makes studies of the distribution, geological conditions of occurrence and physical-chemical properties of sulfur oil in oil and gas basins and on a global scale be rather relevant. Geo-statistical analysis of sulfur oils properties is performed and their specific features are identified in the basins of various geotectonic types on the basis of global database of oil physical-chemical properties, developed by Institute of Petroleum Chemistry of SB RAS. The results of this comprehensive analysis lie in the basis of the article.

Key words: geo-statistical analysis; sulfur crude oils; physical-chemical properties of oil; increase in oil production.

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UDC 553.98(575.1):622.276.031

METHODICAL APPROACH TO CALCULATION

OF POROUS-FRACTURED RESERVOIR VOLUME WHILE EVALUATING RESERVES

OF THE DEPOSITS OF SOUTH-WESTERN GISSAR REGION

WITH THE EXAMPLE OF GUMBULAK FIELD (р. 18)

Akimenko Svetlana Sergeevna,

Bochkarev Vitaly Anatolievich

"LUKOIL Overseas Service B.V."

Dubai Properties Group Headquarters building, TECOM, POB 500551, Dubai, United Arab Emirates,

e-mail: Vitaliy.Bochkarev@lukoil-overseas.com

The article deals with the problem of accounting of the porous volume of fractured complicatedly-composed reservoirs while evaluating their reserves. The influence of faulting tectonics on the permeable and porous characteristics of the porous-fractured reservoirs was analyzed, criteria of ranking Gumbulak field reservoirs by types were marked, methodological principles of quantitative estimation of the impermeable matrix porosity were defined.

Key words: South-Western Gissar region; faulting tectonics; porous-fractured type of a reservoir; matrix porosity.

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UDC 553.98(517+510)

OIL-AND-GAS SOURCE FORMATIONS OF MONGOLIA AND CHINA (р. 25)

Kiseleva Nadezhda Lvovna

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

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

e-mail: nadine_cool@mail.ru

According to the studies of Chinese and American authors, there are 20...25 stratigraphic levels on the territory of Mongolia and China where shale formations were formed – the sources of conventional oil and gas fields. In 2014 China produced about 220 million tons of oil and more than 100 billion m³ of natural gas. According to research of American company "Advance Resources International" (ARI) (May 2013), China has risky technically recoverable shale gas resources in the amount of 35,54 trillion m³ and shale oil with condensate in the amount of 5,69 billion tons.

Key words: Mongolia; China; oil-and-gas source rocks; shale hydrocarbons.

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UDC 553.98.041(470.54)

CATAGENETIC ZONING OF ROCK ORGANIC MATTER

OF ARAKAEVSKAYA PARAMETRIC WELL (р. 34)

Belyaeva Galina Leonidovna

JSC "Kama Research Institute of Deep and Ultra-deep wells Research (JSC "KAMNIIKIGS")

15, Krasnoflotskaya str., 614016, Perm, Russian Federation,

tel.: (342) 246-02-38,

fax: (342) 240-12-06,

e-mail: belka61@inbox.ru

Research of dispersed organic matter of Arakaevskaya parametric well allowed reconstructing cross-section catagenesis zoning to detect placement of "oil and gas main windows" in the section and lower boundary of oil occurrence. Paleo-geothermal unconformities, identified by vitrinite reflectance, which are repeated once and again in a well’s cross-section and detect faults and indicate catagenesis inversion character.

Key words: dispersed organic matter; vitrinite reflectance; catagenesis; paleogeothermic unconformities.

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UDC 550.4

SOME INFORMATION ABOUT UNIQUE OIL COMPOSITION

OF NAFTALAN OIL FIELD (р. 36)

Babaev F.R.

Azerbaijan Technical University

Martynova G.S., Mamedova S.G., Maksakova O.P., Nanadzhanova R.G., Alizade A.E.

Institute of Geology and Geophysics of Azerbaijan N ational Academy of Sciences

119, G. Javid prosp., Baku, АZ1143, Republic of Azerbaijan,

e-mail: martgs@rambler.ru

The purpose of the present article is studying of oils composition produced from Naftalan oil field (18 operating wells) by modern instrumental methods of analysis such as chromatography-mass spectrometry, combined thermal analysis (CTA), element analysis and IR spectroscopy.

Comparison of oil chemical composition, extracted from Naftalan oil with oils of other fields in Azerbaijan proved presence of a higher content of hydrocarbons with the main ion m/z – 95. The data received allowed suggesting that this particular type of hydrocarbon possesses healing properties and can be used for human body’s treatment at the initial stage of a disease.

Key words: Naftalan oil composition; chromatography-mass spectrometry; combined thermal analysis; IR spectroscopy; biomarkers.

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UDC 550.3

COMPLEX ANALYSIS OF GEOLOGICAL SURVEY AND CORE

OF TERRIGENE RESERVOIRS OF UPPER-JURASSIC SEDIMENTS LOCATED

IN THE EASTERN PART OF KHANTY-MANSI AUTONOMOUS TERRITORY – YUGRA

(р. 42)

Ponomareva Ekaterina Alexeevna

Perm State National Research University (PGNIU)

15, Bukirev str., 614068, Perm, Russian Federation,

e-mail: malahova.n@mail.ru

The article presents results of integration of geophysical, geological, petro-physical and lithological information.

Separation of the terrigene section of the Upper Jurassic deposits on litho-types by core and GIS data, their comparison with each other, as well as confirmation by petro-physical relationships proves the validity of the results of this interpretation.

Sandy-aleuritic varieties, sometimes partially dolomitized, dominate in the Upper Jurassic deposits. The rocks can also contain clayish shale, argillites. Two types of sedimentation, such as of continental and marine origin are determined.

According to petro-physical data collectors of the Upper Jurassic sediments are of porous nature, according to classification – the middle class, the reservoir rock is hydrophilic, i.e. it can absorb moisture (water).

The results of studies of GIS and core complex analysis of terrigene reservoirs of the Upper Jurassic deposits located in the eastern part of Khanty-Mansi autonomous territory – Yugra can be helpful while conducting design and survey activities aimed at oil recover enhancement.

Key words: wells geophysical survey; core; porosity; permeability; density of porosity and permeability; mineralogical density; residual water saturation; residual oil saturation; collector; petro-physics.

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UDC 553.98:622.275.1

STATISTICAL MODEL BUILDING TO PREDICT EFFICIENCY

OF IMPROVING WATER INJECTION PROFILE ON THE BASIS

OF GEOLOGICAL-TECHNOLOGICAL CHARACTERISTICS

(р. 47)

Keller Yuri Alexandrovich^{1, 2}

¹"SIAM-Engineering" Ltd.

10a, Oktyabrskaya str., 634003, Tomsk, Russian Federation,

tel./fax: (382) 290-00-08,

e-mail: kua1102@rambler.ru

²"National Research Tomsk State University "

Ledovskikh Dmitry Nikolaevich

JSC "Samaraneftegaz"

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

tel./fax: (846) 213-54-71,

e-mail: LedovskikhDN@samng.ru

Geological-technological parameters which actively influence the efficiency of improving of water injection profile on injection wells are determined by means of statistical analysis. were designed with applying Regression analysis was applied for building of mathematical models to predict the efficiency of improvement of water injection profile based on geological-technological parameters.

Key words: improvement of water injection profile (IWIP); injection well; efficiency estimation; regression analysis.

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UDC 622.691

NEW METHODS AND ALGORITHMS OF CALCULATIONS CONTROL

BY APPLYING COMPLEX GEOTECHNICAL MODEL TO CHOOSE OPTIMAL STRATEGY

IN CASE OF SEVERAL GAS FIELDS DEVELOPMENT (р. 52)

Sharipov Roman Ilgizovich^{1, 2},
Krasovsky Alexander Viktorovich²,
Kustyshev Alexander Vasilievich²

¹Tyumen State Oil and Gas University

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

²LLC "TyumenNIIgiprogaz"

2, Vorovskogo str., 625019, Tyumen, Russian Federation,

tel.: (345) 228-65-96,

e-mail: SharipovRI@tngg.ru

The article considers approaches to improvement of control and management of technological parameters calculation by applying a complex model to choose optimal predicted strategy development of two gas fields, being developed as a single gas producing complex. In particular, some algorithms to control technological modes of gas wells operation, to increase efficiency of gas booster complex and to control fields’ gas extraction with account of seasonal trend of customers gas demand are proposed.

Key words: technological parameters; complex model; rate of gas flow; model of gas booster complex; control of fields’ gas extraction.

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UDC 622.276.1/.4:553.982.04(476.2)

EFFECT OF ROCKS’ STRESS-STRAIN BEHAVIOR

ON FILTRATION PROCESSES AND WELL PRODUCTION

(by the example of accumulations of Rechitsko-Vishanskaya uplift zone

of Pripyatsky trough) (р. 56)

Kovkhuto Аndrey Мarlenovich,

Kibash Мikhail Fedorovich,

Zaitsev Аlexander Ignatievich,

Yevtushenko Natalia Nikolaevna

Republican Unitary Enterprise "Research and Production Center of Geology" in Minsk

7, Kuprevich str., 220141, Minsk, Republic of Belorussia,

tel.: (375 17) 267-53-15,

e-mail: nigri@geology.org.by

Republican Unitary Enterprise "Research and Production Center of Geology" in Gomel

1, Pervomaiskaya str., 246050, Gomel, Republic of Belorussia,

tel.: (375 232) 74-09-96,

e-mail: belnigry@mail.gomel.by

Lobova Nadezhda Leonovna,

Lobov Кonstantin Аnatolievich

BelNIPIneft

15a, Knizhnaya str., 246003, Gomel, Republic of Belorussia,

tel.: (375 232) 79-32-39,

e-mail: k.lobov@beloil.by

Control of stress-strain behavior (SSB) of carbonate reservoirs opens wide possibilities for timely management of oil fields development by determination of optimal pressure drawdown and necessary formation pressure for the reservoirs with different geological, mechanical and reservoir (permeability and porosity) properties.

Execution of timely control over the type of deformation allows taking proper measures for preventing plastic deformations, effecting fracture permeability and decreasing reservoir oil recovery.

The present paper analyzes the results of experimental studies on change of permeability under varying confining pressures (simulating formation conditions), carried out on the laboratory core permeability measurement unit-1 using cores of big diameter.

The revealed regularities are correlated with hydrodynamic situation of a number of fields of Rechitsko-Vishanskaya uplift zone and the recommendations on accounting of deformation processes while simulating fields’ development are given.

Key words: reservoir (permeability and porosity) properties; stress-strain behavior (SSB); optimal pressure drawdown.

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JSC "ALL-RUSSIAN SCIENTIFIC-RESEARCH INSTITUTE OF ORGANIZATION, MANAGEMENT AND ECONOMICS OF OIL AND GAS INDUSTRY"

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