Abstract
Evaluating and monitoring the CO2 behavior in the reservoir, understanding the mechanism of CO2 flow and distribution in the water-CO2 mixture state is essential. In this study, measurement of the complex electrical impedance (Z) and P-wave velocity (Vp) is conducted during the CO2 injection into the rock core under the reservoir condition. Specimen is low permeable sandstone and injection rate is ultra-low (in the low capillarity number (Cn) area) to high. In addition to measuring Z and Vp, differential pressure on the both sides of the specimen and CO2 saturation (SCO2) of the entire specimen are measured. The change of Z and Vp are observed according to the change of differential pressure and SCO2. After the injection test, SCO2 in cross-section of the specimen is estimated using Archie's law and Gassmann's equation (Patchy saturation model) to the experimental results.
Original language | English |
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Pages (from-to) | 4879-4885 |
Number of pages | 7 |
Journal | Energy Procedia |
Volume | 114 |
DOIs | |
Publication status | Published - Jan 1 2017 |
Event | 13th International Conference on Greenhouse Gas Control Technologies, GHGT 2016 - Lausanne, Switzerland Duration: Nov 14 2016 → Nov 18 2016 |
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All Science Journal Classification (ASJC) codes
- Energy(all)
Cite this
Measurement of Electrical Impedance and P-wave Velocity of a Low Permeable Sandstone Core during the Displacement of Saturated Brine by CO2 Injection. / Honda, Hiroyuki; Kitamura, Keigo; Takaki, Shinnosuke; Ikemi, Hiro; Mitani, Yasuhiro.
In: Energy Procedia, Vol. 114, 01.01.2017, p. 4879-4885.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Measurement of Electrical Impedance and P-wave Velocity of a Low Permeable Sandstone Core during the Displacement of Saturated Brine by CO2 Injection
AU - Honda, Hiroyuki
AU - Kitamura, Keigo
AU - Takaki, Shinnosuke
AU - Ikemi, Hiro
AU - Mitani, Yasuhiro
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Evaluating and monitoring the CO2 behavior in the reservoir, understanding the mechanism of CO2 flow and distribution in the water-CO2 mixture state is essential. In this study, measurement of the complex electrical impedance (Z) and P-wave velocity (Vp) is conducted during the CO2 injection into the rock core under the reservoir condition. Specimen is low permeable sandstone and injection rate is ultra-low (in the low capillarity number (Cn) area) to high. In addition to measuring Z and Vp, differential pressure on the both sides of the specimen and CO2 saturation (SCO2) of the entire specimen are measured. The change of Z and Vp are observed according to the change of differential pressure and SCO2. After the injection test, SCO2 in cross-section of the specimen is estimated using Archie's law and Gassmann's equation (Patchy saturation model) to the experimental results.
AB - Evaluating and monitoring the CO2 behavior in the reservoir, understanding the mechanism of CO2 flow and distribution in the water-CO2 mixture state is essential. In this study, measurement of the complex electrical impedance (Z) and P-wave velocity (Vp) is conducted during the CO2 injection into the rock core under the reservoir condition. Specimen is low permeable sandstone and injection rate is ultra-low (in the low capillarity number (Cn) area) to high. In addition to measuring Z and Vp, differential pressure on the both sides of the specimen and CO2 saturation (SCO2) of the entire specimen are measured. The change of Z and Vp are observed according to the change of differential pressure and SCO2. After the injection test, SCO2 in cross-section of the specimen is estimated using Archie's law and Gassmann's equation (Patchy saturation model) to the experimental results.
UR - http://www.scopus.com/inward/record.url?scp=85029629732&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029629732&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2017.03.1629
DO - 10.1016/j.egypro.2017.03.1629
M3 - Conference article
AN - SCOPUS:85029629732
VL - 114
SP - 4879
EP - 4885
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
ER -