Control of Seismic Activity in Tectonic Fault Zones Using Vibrations
			and Fluid Injection in Deep Wells

Ruzhich, V. V.; Вахромеев, А.Г.; Левина, Е. А.; Sverkunov, S.A.; Shilko, Evgeny V.

doi:10.1134/s1029959921010124

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…Следовательно, необходимо изучить местные сейсмогеологические условия, существующие на уровне сейсмофокальных горизонтов земной коры с Т=350-550°, P=2-4 Кб, нередко содержащих резервуары газоводных флюидов, инжекции которых в разломы как триггеры нередко способствуют возникновению режимов сейсмоопасных косейсмических смещений. Без учета подобных геологических закономерностей, а также законов трения в пределах шероховатых плоскостей скольжения на участках зон разломов трудно рассчитывать на успешное решение возникающих вопросов, ограничиваясь использованием методов численного моделирования [Ruzhich et al, 2020;. Сходное мнение, обоснованное с позиций геомеханики, изложено в работах Г.Г.…”

Section: обсуждение результатовunclassified

“…Таким образом, рассмотренные в кратком изложении результаты исследований указывают на то, что подготовку высокоопасных тектонических землетрясений можно предотвращать своевременными интервальными закачками в сочетании с остановками для превентивной релаксации имеющихся в породных массивах деформаций [Ruzhich et al, 2021]. Но для успешного выбора режимов воздействий необходимо предварительно проводить детальное изучение сейсмогеологических условий в тех сегментах разломов, где методами средне-и долгосрочного прогноза по сейсмологическим или геофизическим данным выявлены признаки подготовки очагов опасных землетрясений с М≥6.0, возникновение которых с повышенной вероятностью возможно в ближайшие годы или десятилетия.…”

Section: обсуждение результатовunclassified

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Study, Forecast and Controlled Seismic Hazard Reduction in the Identified Segments of the Main Faults by Cyclic Injection of Fluid Through Deep Multi-Branch Directionally Inclined Wells

Ruzhich

Вахромеев

Sverkunov

et al. 2022

Geodin. tektonofiz.

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The methods developed by the world community to date to withstand strong natural and induced destructive earthquakes do not effectively reduce material losses and the number of victims. The authors propose for discussion an integrated approach to solving the problem of ensuring seismic safety, based on the use of new important information about the geological conditions for earthquake generation. This involved the use of results of numerical and physical modeling, as well as physical full-scale experiments in the natural fault areas. The paper analyzes the petrophysical conditions of deep-seated frictional processes in coseismic faults, revealed through detailed studies of the fragments of paleoearthquake centers that became accessible after their exhumation from seismic-focal depths of the Earth’s crust. The collected information allowed the authors to clarify with a high degree of certainty the origin and occurrence of seismic motions. This paper presents briefly the results of the medium-term forecast of earthquakes with M≥5.0 as applied to the seismodynamic regime of the Baikal rift zone. The forecast emphasizes the detection of places for 1–11-year earthquake generation cycles.A comprehensive analysis of the collected information made it possible to substantiate the conclusion about an opportunity to prevent earthquake damage by using hydrodynamic damping of seismically hazardous fault segments. In the last section, consideration is being given to one of the most promising methods of such man-made impacts, which uses modern technological advances in drilling deep multil-branch and directionally inclined wells with horizontal deviation. The paper discusses the techniques that make it possible to prevent episodes of unexpected reactivation of fault segments in the form of excitation of earthquakes with M≥6.0. Attention is drawn to conducting tests at selected sites in order to improve the technology as part of the approach to earthquake damping.

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Section: обсуждение результатовunclassified

Study, Forecast and Controlled Seismic Hazard Reduction in the Identified Segments of the Main Faults by Cyclic Injection of Fluid Through Deep Multi-Branch Directionally Inclined Wells

Ruzhich

Вахромеев

Sverkunov

et al. 2022

Geodin. tektonofiz.

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Mesostructure of a Tectonic Fault Slip Zone

Kocharyan

Остапчук

2023

Phys Mesomech

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Geodynamics

Anakhov¹

2022

JGD

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The purpose of the research is to find possible ways to use microseisms, caused by standing waves in water bodies. According to the theory, standing waves arise when two traveling waves, moving towards each other collide. The first of them falls on an obstacle and the second one reflects from it. The conditions of excitation the waves and swinging of damped waves are presented. Evidence shows that the wave pressure at the antinodes at the boundaries of the water medium separation and the soil is proportional to the wave amplitude on the water. The possibility of using standing waves in seismic exploration is confirmed by the observation data of storm microseisms at remote stations. To increase the transmission range, it is advisable to use long-period microseisms, which provide low damping. One method to reduce the risk of an earthquake involves the initiation of weak seismicity by artificial sources in order to periodically relieve excess tectonic stress. One of the most powerful sources of lithospheric deformations is the natural oscillations of the liquid level in large water bodies. The study considers the idea of using the resonance effect of tidal-seiches vibrations to initiate weak seismicity. Artificial excitation of the seiche is achieved when controlling a water culvert. Transmission network supports multiplexing of communication channels with separation by physical nature and transmission media. When managing culverts, seiches oscillations are artificially swung with phase-shift oscillations. Phase shift of the exciting wave relative to the damping wave, in turn, causes variations in seiche periods, which leads to proportional variations in the periods of microseisms. This solution allows encoding messages by the durations of seiches and microseisms, with their subsequent transmission. Hydrological observations revealed the effect of the dependence of surface seiches periods on water depth. The solution of the inverse problem, with the measured seiches period, allows calculating the water body depth. Method of remote measurement has been proposed using the analysis of ground oscillations of seiches origin. Analysis of variations in the electromagnetic radiation of the geological environment has shown that they are determined by the mechanisms of energy conversion of these processes into the energy of the electromagnetic field. The study of these variations allows us to calculate the depth of the water body. Originality. Methods for using microseismic oscillations excited by standing waves are considered in detail. The methods of managing standing waves are presented: by regulating the depth of the reservoir; by regulating the period of the exciting wave; by regulating the phase of the exciting wave. The dependence of the amplitude of the resulting oscillation of standing waves on the phase of the exciting oscillation of the same period was investigated. Innovative developments protected by patents of Ukraine are presented, which imply the economic use of microseisms caused by standing waves of water bodies. It is noted that both the necessity and the possibility for using one or another method of performing a specific task are determined by internal and external objective conditions that exist at a certain time in a certain space.

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Control of Seismic Activity in Tectonic Fault Zones Using Vibrations and Fluid Injection in Deep Wells

Cited by 3 publications

References 34 publications

Study, Forecast and Controlled Seismic Hazard Reduction in the Identified Segments of the Main Faults by Cyclic Injection of Fluid Through Deep Multi-Branch Directionally Inclined Wells

Study, Forecast and Controlled Seismic Hazard Reduction in the Identified Segments of the Main Faults by Cyclic Injection of Fluid Through Deep Multi-Branch Directionally Inclined Wells

Mesostructure of a Tectonic Fault Slip Zone

Geodynamics

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