I.S. Fayzullin, A.V. Seregin, A.V. Volkov, T.I. Fayzullin
AbstractAbout the AuthorsReferences
In the method of seismic location of oil and gas (SLONG), intended for predicting the oil and gas prospects of objects based on the data of seismic exploration method CDP-2D, the length of the laterally allocated sections of the presence of hydrocarbons is determined by statistical processing of all graphs of the energy distribution by depth of micro tremors. However, in this case, the results of processing depend on the repetition factor of impulse accumulations of fluctuations used. Therefore it is proposed to use a different approach to determine the length of the lateral sections of the presence of HC based on the processing of micro tremors recorded during CDP-2D, according to the method proposed by G.V. Vedernikov, E.A. Khagoev and T.I. Chichinina. As a result of applying this technique, it was found that all oil and gas fields are accompanied by anomalies in the micro tremors field in terms of energy and spectral characteristics of vibrations. Not stopping on the possibility of solving the inverse problem, we only note that according to this provision, the presence of a deposit should lead to anomalies in the micro tremors field and, in particular, to an increase in the energy oscillation. Therefore, if the presence of a deposit is established in any way, then we should expect the appearance of a section with an increased energy oscillation, which can be used to estimate the length of the deposit laterally. The fact of the presence of a deposit can be established by the results of processing the same CDP-2D profile using SLONG technology. If a positive SLONG result is obtained, a section with an increased energy of micro tremors should appear on the corresponding section of the profile, which will lead to the solution of the problem.
Fayzullin Irik Sultanovich,
Doctor of Physical and Mathematical Sciences, professor, head of sector, FSBI «All-Russian Research Geological Oil Institute», geophysical research division. 8, Varshavskoye sh., Moscow, 117105, Russia. E-mail: email@example.com.
Seregin Aleksandr Vladimirovich, senior research worker, FSBI «All-Russian Research Geological Oil Institute», geophysical research division. 8, Varshavskoye sh., Moscow, 117105, Russia. E-mail: firstname.lastname@example.org.
Volkov Anton Vladimirovich, senior research worker, FSBI «All-Russian Research Geological Oil Institute», geophysical research division. 8, Varshavskoye sh., Moscow, 117105, Russia. E-mail: email@example.com.
Fayzullin Timur Irkinovich, research worker, FSBI «All-Russian Research Geological Oil Institute», geophysical research division. 8, Varshavskoye sh., Moscow, 117105, Russia. E-mail: firstname.lastname@example.org.
- Fayzullin I.S., Seregin A.V., Volkov A.V., Fayzullin T.I. Forecast of oil and gas prospects of objects in regional seismic studies on emission waves // Geoinformatika. 2018. No. 3. P. 106-110.
- Vedernikov G.V., Hogoev E.A. Forecast of hydrocarbon deposits based on microseismic characteristics during seismic survey operations // GeoSiberia-2007 : International Exhibition and Scientific Congress : Collection of materials. V. 5. P. 179-183.
- Hogoev E.A., Chichinina T.I., Vedernikov G.V. Hydrocarbon Microtremors: A Method of Microseismic Analysis with Conventional Seismic Data 2D/3D // Geomodel 2015 : Conference Proceedings, 17th science and applied research conference on oil and gas geological exploration and development, Russia, Gelendzhik, Sep. 2015. V. 2015. P. 1-5. URL: https://doi.org/10.3997/2214-4609.201413966.
- Chichinina T.I., Hogoev E.A., Reyes-Pimentel A. Microtremor Analysis in Seismic Reflection Data for Identification of Oil and Gas Reservoirs // Conference Proceedings, 76th EAGE Conference and Exhibition, Amsterdam, Jun 2014. V. 2014. P. 1-5. URL: https://doi.org/10.3997/2214-4609.20141562.
Key words: Location, microtremors, length, anomaly.
Section: Modeling geo objects and geo-processes