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SPE-191688-18RPTC-MS Nanoseismological monitoring of hydraulic fracturingстатья
- Авторы: Chebotareva I.Ya, Dmitrievsky A.N., Eremin N.A.
- Сборник: SPE Russian Petroleum Technology Conference, 15-17 October, Moscow, Russia
- Год издания: 2018
- Место издания: Society of Petroleum Engineers, Inc United States
- Первая страница: 1
- Последняя страница: 9
- DOI: 10.2118/191688-18RPTC-MS
- Аннотация: Chebotareva, I., Dmitrievsky, A., & Eremin, N. (2018, October 15). Nanoseismological Monitoring of Hydraulic Fracturing. Society of Petroleum Engineers. doi:10.2118/191688-18RPTC-MS ISBN 978-1-61399-648-5 https://www.onepetro.org/conference-paper/SPE-191688-18RPTC-MS?sort=&start=0&q=191688&from_year=&peer_reviewed=&published_between=&fromSearchResults=true&to_year=&rows=25# The article is prepared based on the results of the work carried out within the framework of the Program of the State Academies of Sciences for 2013-2020. Section 9 "Earth Sciences"; directions of fundamental research: 131. "Geology of hydrocarbon fields, fundamental problems of geology and geochemistry of oil and gas, scientific foundations for the formation of a raw materials base for traditional and non-traditional sources of hydrocarbon raw materials" and 132 "Integrated development and conservation of the Earth's interior, innovative development of mineral fields and deep processing of mineral raw materials ", within the framework of the projects "The Fundamental Basis of Innovative Technologies in the Oil and Gas Industry ", No. АААА-А16-116031750016-3 and "Energy, Dynamics and Degassing of the Earth, Theoretical and Experimental Foundations of Innovative Seismo-Acoustic Technologies for Investigation of the Geological Environment and Control over Oil and Gas Production Facilities", No. АААА-А16-116021510125-7. Abstract The nanoseismic monitoring combines the methods focused on the weaker seismic sources than the micro-earthquakes. The localization of the latter is carried out on seismic records using hypocentry methods with the preliminary picaping of the arrival times of seismic phases. An emission seismic tomography allows to conduct the localization of extremely weak noise-like endogenous sources, signals from which are completely buried in the noise on single records. If nanomaterials often exhibit properties that are significantly different from the behavior of similar materials in a massive state, then nanoscale monitoring makes it possible to investigate the fine energetics of geophysical processes that is substantially different from the relatively higher energy manifestations. The nanoseismological methods allow not only to localize the seismic events associated with the rock fragmentation, but also to monitor the processes of the preparation of micro-events and the processes of the relaxation of the stressed state of the environment after them. These methods also allow us to study the slow changes in the stress-strain state of the geological environment, under which the dissipation occurs in the form of the noise-like continuous emission radiation and is not accompanied by micro-earthquakes. The emission seismic tomography allows to extract information about the structure of the rock medium and the processes occurring in it from the spatially coherent seismic emission signals, which are a weak additive component of the seismic noise. The activation of sources of seismic emission within the geo-environment occurs with various kinds of the external natural and technogenic impacts. An important experimental fact of our research studies is that the configuration of the active emission clusters in a large volume of the rock medium, up to several kilometers, changes significantly with the local technogenic impact on the natural rock mass during the hydraulic fracturing and is not uniform in different frequency ranges. According to the records of the seismic background prior to the hydraulic fracturing, the stationary emission zones through which the dissipation of the background effects (tidal, tectonic, technogenic) occurs are "highlighted". As the pressure increases during the injection of the fracturing working fluid, the rock mass adapts to the change in the energy flux by increasing the number of emitters and changing the position of the clusters of emission sources. The change in the stress-strain state of the rock media leads to the "illumination" of the new emission sources not previously detected in the background state. A sharp change in the spatial distribution of the emission sources can be considered as a bifurcation with the emergence of a new spatio-temporal dissipative radiating structure. A day after the hydraulic fracturing process is over, the rock media returns to the background distribution of the sources. 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- Добавил в систему: Еремин Николай Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | SPE-191688-18RPTC-MS.pdf | 722,4 КБ | 21 ноября 2018 [EreminNA] |