Early assessment of seismic hazard in terms of Voronezh massif-Moscow Depression contact

Abstract

Purpose is to develop a system approach for early assessment of areas being of high seismic hazard and characterizing by low stability of rock mass relative to external loads. Methods. Well cores have been assessed down to 30 depth and seismic observations have been accumulated. Complexes of field geophysics methods have been applied for the research as well as remote sensing materials, digital model of surface relief, and techniques of qualitative and quantitative interpretation. Findings. Seismic hazard map has been formed in terms of seismic intensification and ground displacement units. The abovementioned is quite reliable but a cost-based result involving early assessments of high seismic hazard areas to infill network of geophysical measurements in the neighbourhood of the areas for their further quantitative characterization. It has been identified that rare well network and definite geophysical lines, run under conditions of a complex terrain, cannot localize the areas of high seismic hazard to focus builders on the enforcement of certain components of the erected structures. It has been defined that end result of the prognostic developments takes a shape of mapping of local areas with the decreased stability of upper share of the geological section supported by further measurements by means of a common depth point method (CDP). Comparison of potential secondary earthquake sources with high permeability zones makes it possible to predict highly reliable areas of the increased seismic magnitude. Originality.For the first time, interpretation techniques have been adapted to describe parametrically nonpotential geofields (i.e. optical density of remote basis; and relative elevation), accepted during the steps of potential field processing, with the use of wave analogies. Practical implications.The methods have been developed helping optimize field geological and geophysical operations in terms of area and well number as well as measuring stakes under the conditions of the limited prior data amount.

Анализ И Выбор Тампонажной Смеси, Устойчивой К Динамическим Нагрузкам, С Целью Повышения Качества Герметичности Крепи В Затрубном Пространстве

“…Следует отметить, что для этой добавки прочность постоянно увеличивалась с повышением концентрации, что в свою очередь приводит к устойчивому росту прочности. Резиновый материал восполняет внутренние недостатки тампонажного камня и увеличивает его эластичность, что вызывает рост прочности тампонажного камня на изгиб и растяжение [29][30][31][32]. Это создает предпосылки для дальнейших исследований с более высоким содержанием резиновой крошки малой фракции.…”

Iraq Oil Industry Infrastructure Development in the Conditions of the Global Economy Turbulence

“…The study of issues of functioning and development of the oil industry leads to the conclusion that its infrastructure should include transport, social, institutional and information (increasingly digital in form) components in addition to the direct production components [42,43].…”

Deep structure, tectonics and geodynamics of the Sea of Okhotsk region and structures of its folded frame

“…The results of the State Geological Mapping at a scale of 1:1000000 (GGK-1000) performed under the scientific and methodological supervision of FSUE "VSEGEI" are of fundamental importance for the solution of the set objectives. The GGK-1000 database includes materials of gravity and magnetic surveys at a scale of 1:200000 and calculations of their transformations, results of specialized remote sensing, and geomorphological and geochemical studies [7][8][9]. The data of bathymetric surveys, seismic (DSS and CDP seismic reflection method), seismic tomography, geothermal, magnetotelluric surveys, geological mapping, deep-sea drilling, geoacoustic profiling, etc.…”