Issues of the journals for 2010 y.

Should We Quit Grouping for Single Geophones?

(Cherepovskiy A.V. )

Large geophone groups as an instrument for regular and random noise suppression were developed and improved in the era of 2D seismic and analog recording. But the length of geophone groups became smaller and smaller with the advance of 3D seismic, high-density surveying, and digital recording. As a result, short geophone groups are now applicable only for suppression of random noise. But even short geophone groups result in significant attenuation of high-frequency signals, thus degrading high- resolution imaging and corrupting amplitude information.......

  • 2010  № 3, pp. 22-29

Structural and Tectonic Zoning of Subsalt Sedimentary Rocks of the North-Eastern Pre-Caspian Depression. Seismic Case Study

(Cherdabayev Zh.M. )

Studying on 2D CDP seismic materials geological structure of the territory located at the Pricaspian basin northeast side zone referred to the Volgograd-Orenburg monocline system. The studies resulted in identification of four structural-tectonic areas of various geological structures. These are Koblandinsko-Tamdinski, Novo-AIexeevski, Shirakski and Bestau-Sorkolski, within which potential oil-and-gas-bearing structural-facial targets are present.......

  • 2010  № 3, pp. 30-34

Determining Reservoir Rock Characteristics of the Abalakskian Suite (Krasnoleninsk Dome)

(Zyryanova I.A. )

Reservoir characteristics, reservoir delineation and porosity estimation of the Abalak formation of the Krasnoleninsk field are presented here. The deposits are mainly composed of siliceous shaly rocks with sparce carbonate interlayers. The carbonate interlayers that are potential reservoirs have been exposed to secondary transformations. It has proved challenging to estimate the reserves in the Abalak formation using the historical well logging suite because of the complex mineral composition that exists in this formation. New core data and a more extensive well logging suite in the more recent wells have helped to solve that problem.......

  • 2010  № 3, pp. 35-40

Basics of Online Geophysical Monitoring

(Demoura G.V. Velikin S.A. )

The methodology of natural automated integrated geophysical monitoring for the purposes of the control and the forecast of an emergency on hydraulic engineering constructions of Yakutia is considered. The basic concepts of offered system statistical model of the upper part permafrost area as physical geocryology model in the holes in inter holes space and the surface profiles. Transformation models in the time have to make a decision long term global industrial changes in the geological envi-rorrment and local industrial loadings. Practical opportunities are shown and initial development of the automated system of geophysical monitoring in limits Svetlinskaia hydro power station is shown.......

  • 2010  № 3, pp. 41-47

Probabilistic Approach Towards Forecasted Zoning of Oil and Gas Prospects Using the Set of Geological Attributes

(Kalinin D.F. Kalinina T.B. )

Based on a formalized integration of qualitative geological data, theoretical and methodical foundations of statistical prognosis of the perspective territories are described. Geological data are represented as sets of discrete numbered states with a various investigation level and being substantially connected with objects of prognosis. The particularity offormation of the geological attributes describing the prognosis object is “weights” estimation of discrete conditions by expert. Standards of the prognosis objects are formed by expert and used at statistical integration of geological data represented as “grids” of states numbers. An example of prognosis with use of qualitative geological data in territory of Zyri a novsky ore deposit area (Rudny Altaj) is given and comparison to prognosis results on basis of integrated quantitative geodata with “natural” standards of ore deposits is accomplished. Discussed approach provides a practical opportunity of formalized integration of any geological knowledges, weighed statistically.......

  • 2010  № 3, pp. 48-55