| Autor: |
Hachay, Olga, Drjagin, Veniamin, Khachay, Andrey |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2216 Issue 1, p050003-1-050003-7, 7p, 1 Chart, 2 Graphs |
| Abstrakt: |
The results of study of seism acoustic emission arising in a porous two-phase geological environment under acoustic influence are presented. Acoustic emission arising in reservoirs of oil fields using well observations is considered. The regularity of the emission processes of acoustic emission, which manifests itself in the form of discrete spectra of signals similar to oscillations of nonlinearly coupled oscillators, is shown. Spectra have special characteristics for each type of rock. An algorithm for modeling the process of resonant acoustic response of a porous fluid-saturated reservoir of a hierarchical structure to an acoustic frequency excitation located in an elastic N-layer medium and having plastic properties is written. That algorithm is developed as an iterative process for solution integral and integraldifferential equations. The frequencies that are parameters of the direct problem are used from the spectra of observed data of acoustic emission in the oil wells. For the first time it had been found the relation between resonant frequencies of the acoustic emission, which these values had been used in the algorithm of modeling acoustic processes in fluid saturated nonlinear plastic environment. The analysis of these emission processes can serve as a source of information about the filtration-capacitive properties of productive reservoirs of a porous type with a hierarchical structure. It is used in practical data of oil fields of Western Siberia. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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