Vladimir Karev – författare

This book is devoted to the most important and urgent problems arising during the operation of underground gas storage facilities (UGS) and associated with the destruction of the reservoir and sand production into the wells. UGS facilities play a special role in ensuring high reliability of stable and guaranteed gas supplies to consumers. However, despite many years of experience in UGS well operation, there is still no sufficiently substantiated geomechanical model of reservoir failure and a mathematical description of the processes occurring in the reservoir-well system, taking into account the peculiarities of the mechanical behavior of reservoir rocks during cyclic injection and extraction of gas. As a result, there are no reliable criteria for establishing a rational regime for the operation of an UGS wells in conditions of a possible destruction of reservoir rocks. Further development of underground gas storage direction requires the introduction of innovative technologies that can be used both in the design of new UGS facilities and to extend the safe and efficient operation of existing underground gas storage facilities. To solve these problems, the most promising technologies, taking into account their efficiency, relatively low cost and environmental safety, are those based on the geomechanical approach.

The book is addressed to specialists in the development and operation of underground gas storage facilities, as well as specialists in geomechanics of oil and gas fields. It can be useful for students and graduate students studying in the speciality "Development of oil and gas fields".

This book presents short papers of participants of the 9th International Scientific Conference-School for Young Scientists «Physical and Mathematical Modeling of Earth and Environment Processes.

A special focus is given to the extraction of hydrocarbon resources, including from unconventional sources. An alternative to the use of hydrocarbons as a main source of energy on the Planet in the coming decades is unlikely to be found. At the same time, the resource base of hydrocarbons is quickly depleted, in particularly, large and accessible oil and gas fields. The shale oil and gas, Arctic hydrocarbon stocks, gas hydrates, coal bed methane, oil and gas from deep horizons can become new sources. "Deep oil" may be the most promising source of expanding the resource base of hydrocarbons according to many experts. New technologies are required to their development. Efficient low-cost technologies can be created on the basis of geomechanical approach, i.e., through the use of a huge elastic energy stored in the rock massif due to rock pressure.

The creation of new breakthrough approaches to the development of hydrocarbon fields is very important in today''s geopolitical conditions and requires the involvement of young minds and strength. International activities, including the youth scientific schools, can become an effective tool for exchange of information and the organizing of interdisciplinary research of processes in geo-environment. The book presents the new results of the experimental and theoretical modeling of deformation, fracture, and filtration processes in the rocks in connection to issues of creating scientific fundamentals for new hydrocarbon production technologies. The investigations of the dependence of well stability and permeability of rocks on the stress-strain state in conditions of deep horizons and high rock pressure are also represented.

The book presents short papers of participants of the 10th International Scientific Conference and School for Young Scientists «Physical and Mathematical Modeling of Earth and Environment Processes. The book includes theoretical and experimental studies of processes in the atmosphere, oceans, the lithosphere and their interaction; environmental issues; problems of human impact on the environment; methods of geophysical research.

Research of the dynamic of natural systems - geosphere, hydrosphere, atmosphere and their interactions, the human contribution to naturally occurring processes are among the most urgent and practically important scientific problems. Intensive development of research in these areas is due to several factors. The widespread introduction of computer technology has allowed beginning calculation of complex phenomena, previously unavailable for analysis. Creation and improvement of a new generation of geophysical instruments, remote observing systems based on the ship, aircraft, and satellite allowed us to obtain a large amount of data to objectively reflect the picture of the processes. The articles included in these book reflect also an important role of the laboratory modeling in searching of processes in geo-environments and testing of new developed physical and mathematical models. Development of measurement, optic information and other techniques provide new opportunities to perform controllable and reproducible laboratory data for generations of new ideas and concepts. Systematic stream of high resolution laboratory data stimulates development of analytical and numerical models of the dynamical processes in three nature environments.

A special focus is given to the extraction of hydrocarbon resources, including from unconventional sources. An alternative to the use of hydrocarbons as a main source of energy on the Planet in the coming decades is unlikely to be found. At the same time, the resource base of hydrocarbons is quickly depleted, in particularly, large and accessible oil and gas fields. The shale oil and gas, Arctic hydrocarbon stocks, gas hydrates, coal bed methane, oil and gas from deep horizons can become new sources.