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The distribution of fracturing and the type of fluid saturation in the geological environment, along with its structure, is the most important information for optimal development of oil and gas fields, including their search, exploration and development. Integrated use of seismic information about fluid saturation, fracturing and the structure of sedimentary strata helps to choose the optimal locations for the discovery of wells in order to obtain the maximum possible inflow of hydrocarbons into them. This approach drastically reduces the drilling of dry wells while performing prospecting and exploration works, significantly reduces the capital costs for their implementation and accelerates the commissioning of fields. In the development of the field, continuous seismic monitoring of fracturing and fluid saturation of the productive strata in real time allows the operative optimization of oil displacement schemes and operating modes of wells, choosing the optimal location and time for performing geological and technological measures, and controlling the geological and technical efficiency of their implementation, etc., the rate of recovery and the completeness of the oil extraction from the deposit while reducing capital and operating costs. To study the 2D-4D distribution of fracturing and fluid saturation in the geological environment by scientists and specialists of the “Scientific School of Oil and Gas Seismoacoustics by prof. Kuznetsov O.L.”, innovative seismic technologies are created: “Seismic side-view locator”, “Seismolocation of foci of emission” and “Acoustic low-frequency survey”, in which for obtaining this information, waves of diffuse reflection and microseismic emissions are used, not mirror reflection, as in traditional seismic surveys. As a result of experimental laboratory, well and field studies, the regularity of the amplitude-time parameters of seismoacoustic emission was determined depending on the type of fluid saturation of rocks and physical impacts, which was also used in the technologies of “Logging of seismoacoustic emission” to isolate oilcontaining intervals in a section of wells and “Wave treatment of the reservoir” to increase the oil inflow into the well, including hard-to-recover highly viscous oil. Examples of the application of seismo-acoustic technologies for solving a wide range of applied problems in the development of oil and gas fields are given.

georesursy

Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields