The experience of applying microseismic infrasonic exploration method ANCHAR to the timelapse monitoring the outlines of pay zones of oil and gas reservoirs under production accounts for more than 10 years. Presented are results of microseismic monitoring for a number of targets – Kaluga underground gas storage facility, Orenburg oil-gas-condensate field and etc. In all these studies the position and displacement of the outlines of pay zones were reliably fixed by microseismic and verified by independent methods. The results demonstrate high prospects of applying the ANCHAR monitoring to post-exploration and operation of HC reservoirs and underground gas storage facilities.

Infra-frequency microseismic technology ANCHAR is based on the analysis of microseismic background of the Earth and is designed for prediction of oil bearing of formation rocks. Based on the 15-year experience of applying the microseismic technology to prediction of oil and gas, authors analyze the problems arising in microseismic technologies based on the use of amplitude characteristics (AC) of microseismic. Proposed is a new criterion based on the statistical analysis of displacement vector of the microseismic background considered as random time series (EC). Demonstrated is its benefits, particularly, better daily reproducibility as compared to approaches based on amplitude characteristics. Presented are case studies of applying the infra-frequency microseismic technology in hard-to-access areas of West Siberia in Russia and examples of ANCHAR applications in other world regions.

Considered are results of applying the multiwave seismic technologies based on the use of different types of seismic waves: reflected, scattered waves and waves of infrasonic seismic emission of hydrocarbon beds to solution of basic problems of prospecting HC reservoirs under complicated conditions of salt-dome tectonics. The use of multiwave seismic technologies allows solve such problems as building a detail structural plan, mapping fractured zones and identifying oil and gas saturation of reservoirs. By way of example considered is solution of these problems for the south of Cis-Ural Trough, particularly for the Akobinsk area.

P238 Integrated application of geoelectric methods and low-frequency acoustic prospecting for the hydrocarbon deposits searching in Western Kazakhstan 1 S.P. LEVASHOV 1 S.L. ARUTYUNOV 2 A.E. SUNTSOV 2 N.A. YAKYMCHUK 1 I.N. KORCHAGIN 3 K.M. TASKYNBAEV 4 1 Institute of applied problems of Ecology Geophysics and Geochemistry Laboratory lane 1 Kyiv 01133 Ukraine e-mail: yakymchuk@karbon.com.ua slevashov@mail.ru SPO ‘ANCHAR” Moscow Russia 2 Institute of Geophysics of Ukraine National Academy of Science e-mail: korchagin@karbon.com.ua 3 OAS “Embamunaygaz” Atyrau Kazakhstan Abstract. The results of integrated application of geoelectric methods and low-frequency acoustic exploring for the hydrocarbon deposits searching on some structure of the

A fluctuation–dissipation analysis of the noise of a microelectrode is performed. It is shown that the mass transfer step and the discharge step are fluctuationally correlated already in the first order in the constant electric current polarizing the electrode. This basic result makes necessary a certain modification of the modern macroscopic theory of electrochemical fluctuations and development of a unified theory of the reaction elementary act and electrochemical fluctuations.

Due to high stability of the hydroelectrochemical impedance, the low-frequency geoacoustic radiation of an oil and gas formation may successfully be recorded with electrochemical geophones that passed only a comparative calibration in the field or town without employing specialized certified vibration tables.

In the framework of the quantum theory of irreversible processes, it is shown that the microscopic theory of equilibrium noises in electrical multiports can be extended almost to the equilibrium state. It is found that the steady electrical noise near the equilibrium state is determined not only by cross impedances of multiports but also by a set of rectification coefficients that characterize nonlinear kinetic features of multiports at equilibrium. The Faraday rectification appears to directly affect changes in the magnitude and character of the electrochemical noise, caused by the passage of a direct polarization current through the electrochemical cell.

The analysis of the theory of the elementary act of electrochemical reactions in relation to the fluctuation–dissipation theorem shows that in the neighbourhood of the equilibrium state the fluctuational self-consistency of the theory holds if an integral number of electrons is transferred in the elementary reaction act. The fluctuational self-consistency must also exist for the electrode processes with partial charge transfer. However, this requirement results in a non-zero correlation between fluctuations of the electrochemical reaction rate and the fluctuations of the number of electrons involved in the elementary act.