Lithologic-facies and paleogeographic features of Mid-Upper Jurassic oil-gas bearing sediments in Nurolsk depression (Western Siberia)

The structure of two types of magnetic valve is offered and the calculation methods of their pull-in force developed as well. The formulas of calculation of pull-in force in the main area of valves’ power characteristics are obtained. Experimental data are in alignment with theoretical calculations. Power characteristics of offered structures of magnetic valves may be changed in terms of the offered structural execution of magnetic valves. Experimental test of obtained formulas has been carried out. The ways of changing the power characteristics of magnetic valves in accordance with the requirements of certain applications are presented. The structures of magnetic reversing valves for drilling tools used in well drilling in various oil-gas bearing areas of SOCAR have been developed.

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KEROGEN TYPES OF BAZHENOV FORMATION BASED ON PYROLYSIS DATA AND THEIR COMPARISON WITH OIL PARAMETERS

Oil and Gas Studies ◽

10.31660/0445-0108-2017-5-34-43 ◽

2017 ◽

pp. 34-43

Author(s):

E. E. Oksenoyd ◽

V. A. Volkov ◽

E. V. Oleynik ◽

G. P. Myasnikova

Keyword(s):

Organic Matter ◽

Lower Cretaceous ◽

Alternative Model ◽

Oil And Gas ◽

Upper Jurassic ◽

Gas Content ◽

Basin Modeling ◽

Bazhenov Formation ◽

Gas Bearing

Based on pyrolytic data (3 995 samples from 208 wells) organic matter types of Bazhenov Formation are identified in the central part of Western Siberian basin. Zones of kerogen types I, II, III and mixed I-II and II-III are mapped. Content of sulfur, paraffins, resins and asphaltenes, viscosity, density, temperature and gas content in oils from Upper Jurassic and Lower Cretaceous sediments (3 806 oil pools) are mapped. Oil gradations are identified and distributed. The alternative model of zones of kerogen II and IIS types is presented. The established distributions of organic matter types can be used in basin modeling and in assessment of oil-and-gas bearing prospects.

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ON MULTIVARIATE APPROACH TO EVALUATE THE PROTECTION OF AQUIFERS AT DEVELOPMENT OF WESTERN SIBERIA OIL-AND-GAS BEARING AREAS

Oil and Gas Studies ◽

10.31660/0445-0108-2015-3-7-15 ◽

2015 ◽

pp. 7-15

Author(s):

Yu. V. Bespalova

Keyword(s):

Quantitative Assessment ◽

Western Siberia ◽

Oil And Gas ◽

Quantitative Estimation ◽

Water Levels ◽

Multivariate Approach ◽

Qualitative And Quantitative ◽

Ground Waters ◽

Clay Rocks ◽

Gas Bearing

The qualitative and quantitative assessment of ground waters protectability based on the regional specific charac-teristics of the lithology and thickness of impermeable deposits of the zone of aeration and overlying deposits, a ratio of confined and ground water levels, the soils and clay rocks absorptivity. The article gives the author's vision of ground waters natural protectability. It presents a quantitative estimation by three most well-known methods. Based on the calculations made a map of protectability of fresh ground waters in the Atlym-Novomikhailovsk complex for Nizhnevartovsk district was constructed.

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