CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation

T. Tsuchiya, N. Yamada, Pratama Iskandar Utomo, M. Kurihara, C. Barnes, M. Charara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    Synthetic study on CO2-saturation and pressure-buildup differentiation by using VSP-FWI is conducted in a virtual CCS site. Geophysical and Reservoir simulation works are first implemented to create geophysical models before and after CO2 injection. Virtual VSP-FWI monitoring experiment is then implemented on the models. In parallel with this, simple linear equations to estimate CO2-saturation and pressure-buildup are derived. Inverted P-and S-wave velocities through the VSP-FWI are found to be highly accurate, and used in the derived equation. As a result the saturation change and reduction of differential pressure are estimated consistently with the values after reservoir simulation. This result indicates that CO2-saturation and pressurebuildup can be differentiated around the well, if both P-and S-wave velocities are accurately inferred by applying VSP-FWI and relevant rock-physics model is known.

    Original languageEnglish
    Title of host publicationEAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections
    Subtitle of host publicationCCS and CO2-EOR
    PublisherEuropean Association of Geoscientists and Engineers, EAGE
    Pages117-121
    Number of pages5
    ISBN (Electronic)9781510850781
    Publication statusPublished - 2017 Jan 1
    EventEAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR - Trondheim, Norway
    Duration: 2017 Aug 282017 Aug 31

    Other

    OtherEAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR
    CountryNorway
    CityTrondheim
    Period17/8/2817/8/31

    Fingerprint

    saturation
    Monitoring
    monitoring
    P waves
    S waves
    P-wave
    wave velocity
    S-wave
    Linear equations
    differential pressure
    linear equations
    Physics
    Rocks
    simulation
    physics
    rocks
    injection
    estimates
    Experiments
    rock

    ASJC Scopus subject areas

    • Geophysics
    • Geotechnical Engineering and Engineering Geology
    • Geology

    Cite this

    Tsuchiya, T., Yamada, N., Utomo, P. I., Kurihara, M., Barnes, C., & Charara, M. (2017). CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation. In EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR (pp. 117-121). European Association of Geoscientists and Engineers, EAGE.

    CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation. / Tsuchiya, T.; Yamada, N.; Utomo, Pratama Iskandar; Kurihara, M.; Barnes, C.; Charara, M.

    EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR. European Association of Geoscientists and Engineers, EAGE, 2017. p. 117-121.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Tsuchiya, T, Yamada, N, Utomo, PI, Kurihara, M, Barnes, C & Charara, M 2017, CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation. in EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR. European Association of Geoscientists and Engineers, EAGE, pp. 117-121, EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR, Trondheim, Norway, 17/8/28.
    Tsuchiya T, Yamada N, Utomo PI, Kurihara M, Barnes C, Charara M. CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation. In EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR. European Association of Geoscientists and Engineers, EAGE. 2017. p. 117-121
    Tsuchiya, T. ; Yamada, N. ; Utomo, Pratama Iskandar ; Kurihara, M. ; Barnes, C. ; Charara, M. / CO2 Monitoring by Using VSP-FWI-Synthetic Study on CO2-saturation and pressure-buildup differentiation. EAGE/SEG Research Workshop 2017 on Geophysical Monitoring of CO2 Injections: CCS and CO2-EOR. European Association of Geoscientists and Engineers, EAGE, 2017. pp. 117-121
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    abstract = "Synthetic study on CO2-saturation and pressure-buildup differentiation by using VSP-FWI is conducted in a virtual CCS site. Geophysical and Reservoir simulation works are first implemented to create geophysical models before and after CO2 injection. Virtual VSP-FWI monitoring experiment is then implemented on the models. In parallel with this, simple linear equations to estimate CO2-saturation and pressure-buildup are derived. Inverted P-and S-wave velocities through the VSP-FWI are found to be highly accurate, and used in the derived equation. As a result the saturation change and reduction of differential pressure are estimated consistently with the values after reservoir simulation. This result indicates that CO2-saturation and pressurebuildup can be differentiated around the well, if both P-and S-wave velocities are accurately inferred by applying VSP-FWI and relevant rock-physics model is known.",
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    AU - Utomo, Pratama Iskandar

    AU - Kurihara, M.

    AU - Barnes, C.

    AU - Charara, M.

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