Development of laboratory-rock physics relations to estimate velocity-amplitude of seismic waves in reservoir conditions

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AZIZI HALEH; SIAHKOOHI HAMID REZA; Evans Brian; Keshavarz Faraj Khah Nasser; Kazemzadeh Ezzatollah

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Journal: JOURNAL OF RESEARCH ON APPLIED GEOPHYSICS Year:2016 | Volume:2 | Issue:1 Page(s): 11-21

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Title

Development of laboratory-rock physics relations to estimate velocity-amplitude of seismic waves in reservoir conditions

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Keywords

Rock Physics

Velocity of Elastic Waves

Amplitude of Elastic Waves

Reservoir Conditions

Gassman Theory

Greenberg-Castagna Equations

CO2 Injection

Sandstone

Abstract

Water and Gas injection are two major enhanced oil recovery methods in Iran. Gas (e. g. CO2) injection, is one of the most applicable methods of enhancing oil recovery in oil fields. In order to study the behaviour of seismic attributes, the compatibility of the prediction made by Gassman Theory and Greenberg-Castagna Equations in the situation of CO2 saturated environment is investigated using lab data. It should be noted that the mentioned equations are based on some assumptions that are not always represent the real situation, thus, some incompatibility is anticipated. Therefore, their predictions are liable to be incompatible with real world wave behaviour. In this research, CO2 in dissolved phase is injected into pressurized Sandstone samples in laboratory scale, and elastic waves are utilized in order to investigate the injection process. The variation of the propagation velocity of seismic waves and their amplitudes are studied versus variation of effective parameters e. g. confining pressure (close to reservoir pressure), pore pressure (close to reservoir pressure), transmission wave frequency, and CO2 density and phase. We have also used the collected laboratory data for wave propagation at supercritical saturation state to investigate the compatibility of the prediction made by Gassman Theory and Greenberg-Castagna Equations. Based on the results of various laboratory experiments, we can conclude that some of the developed equations are useful for estimation of velocity and amplitude of seismic waves. Verifications confirm that compatibility of the developed equations with laboratory results are more than 90 percent, and thus, the developed equations can be preferred to other related popular equations....

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APA: Copy

AZIZI, HALEH, SIAHKOOHI, HAMID REZA, Evans, Brian, Keshavarz Faraj Khah, Nasser, & Kazemzadeh, Ezzatollah. (2016). Development of laboratory-rock physics relations to estimate velocity-amplitude of seismic waves in reservoir conditions. JOURNAL OF RESEARCH ON APPLIED GEOPHYSICS, 2(1 ), 11-21. SID. https://sid.ir/paper/268624/en

Vancouver: Copy

AZIZI HALEH, SIAHKOOHI HAMID REZA, Evans Brian, Keshavarz Faraj Khah Nasser, Kazemzadeh Ezzatollah. Development of laboratory-rock physics relations to estimate velocity-amplitude of seismic waves in reservoir conditions. JOURNAL OF RESEARCH ON APPLIED GEOPHYSICS[Internet]. 2016;2(1 ):11-21. Available from: https://sid.ir/paper/268624/en

IEEE: Copy

HALEH AZIZI, HAMID REZA SIAHKOOHI, Brian Evans, Nasser Keshavarz Faraj Khah, and Ezzatollah Kazemzadeh, “Development of laboratory-rock physics relations to estimate velocity-amplitude of seismic waves in reservoir conditions,” JOURNAL OF RESEARCH ON APPLIED GEOPHYSICS, vol. 2, no. 1 , pp. 11–21, 2016, [Online]. Available: https://sid.ir/paper/268624/en

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