Abstract
Leroy natural-gas storage site is an anticlinal, fault-bounded, aquifer-storage system located in Wyoming, USA. Based on its abundant data, uncontrolled leakage history and subsequent control by the facility operators, a modeling framework was developed for studying reservoir behavior, examining pressure and gas-inventory histories, as well as gas and brine leakage, and evaluating the sensitivity of that behavior to uncertainty about reservoir properties. A three-dimensional model capturing the bounding fault, layered geologic stratigraphy, and surface topography was calibrated by history data of reservoir pressure and gas inventory. The calibrated model predicted gas arrival at the ground surface that was consistent with the timing of observed gas bubbling into a creek. A global sensitivity analysis was performed to examine the parameters influencing fault leakage, and a geomechanical stability analysis was conducted to investigate the likelihood of fault reactivation. In general, it is shown that a discrete leakage pathway is required to explain the observed gas leakage and its subsequent operational control by reducing reservoir pressures. Specifically, the results indicate that fault leakage is a plausible explanation for the observed gas leakage. The results are relevant to other natural-gas storage sites, as well as other subsurface storage applications of buoyant fluids, such as CO2.
| Original language | French |
|---|---|
| Pages (from-to) | 1429-1445 |
| Number of pages | 17 |
| Journal | Hydrogeology Journal |
| Volume | 21 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Nov 2013 |
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Keywords
- Fault
- Gas leakage
- Natural gas
- Underground storage
- USA
ASJC Scopus subject areas
- Earth and Planetary Sciences (miscellaneous)
- Water Science and Technology
Cite this
lAnalyse d'une fuite par faille de l'installation de stockage souterrain de gaz natlurel de Leroy, Wyoming, USA. / Chen, Mingjie; Buscheck, Thomas A.; Wagoner, Jeffrey L.; Sun, Yunwei; White, Joshua A.; Chiaramonte, Laura; Aines, Roger D.
In: Hydrogeology Journal, Vol. 21, No. 7, 11.2013, p. 1429-1445.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - lAnalyse d'une fuite par faille de l'installation de stockage souterrain de gaz natlurel de Leroy, Wyoming, USA
AU - Chen, Mingjie
AU - Buscheck, Thomas A.
AU - Wagoner, Jeffrey L.
AU - Sun, Yunwei
AU - White, Joshua A.
AU - Chiaramonte, Laura
AU - Aines, Roger D.
PY - 2013/11
Y1 - 2013/11
N2 - Leroy natural-gas storage site is an anticlinal, fault-bounded, aquifer-storage system located in Wyoming, USA. Based on its abundant data, uncontrolled leakage history and subsequent control by the facility operators, a modeling framework was developed for studying reservoir behavior, examining pressure and gas-inventory histories, as well as gas and brine leakage, and evaluating the sensitivity of that behavior to uncertainty about reservoir properties. A three-dimensional model capturing the bounding fault, layered geologic stratigraphy, and surface topography was calibrated by history data of reservoir pressure and gas inventory. The calibrated model predicted gas arrival at the ground surface that was consistent with the timing of observed gas bubbling into a creek. A global sensitivity analysis was performed to examine the parameters influencing fault leakage, and a geomechanical stability analysis was conducted to investigate the likelihood of fault reactivation. In general, it is shown that a discrete leakage pathway is required to explain the observed gas leakage and its subsequent operational control by reducing reservoir pressures. Specifically, the results indicate that fault leakage is a plausible explanation for the observed gas leakage. The results are relevant to other natural-gas storage sites, as well as other subsurface storage applications of buoyant fluids, such as CO2.
AB - Leroy natural-gas storage site is an anticlinal, fault-bounded, aquifer-storage system located in Wyoming, USA. Based on its abundant data, uncontrolled leakage history and subsequent control by the facility operators, a modeling framework was developed for studying reservoir behavior, examining pressure and gas-inventory histories, as well as gas and brine leakage, and evaluating the sensitivity of that behavior to uncertainty about reservoir properties. A three-dimensional model capturing the bounding fault, layered geologic stratigraphy, and surface topography was calibrated by history data of reservoir pressure and gas inventory. The calibrated model predicted gas arrival at the ground surface that was consistent with the timing of observed gas bubbling into a creek. A global sensitivity analysis was performed to examine the parameters influencing fault leakage, and a geomechanical stability analysis was conducted to investigate the likelihood of fault reactivation. In general, it is shown that a discrete leakage pathway is required to explain the observed gas leakage and its subsequent operational control by reducing reservoir pressures. Specifically, the results indicate that fault leakage is a plausible explanation for the observed gas leakage. The results are relevant to other natural-gas storage sites, as well as other subsurface storage applications of buoyant fluids, such as CO2.
KW - Fault
KW - Gas leakage
KW - Natural gas
KW - Underground storage
KW - USA
UR - http://www.scopus.com/inward/record.url?scp=84885832339&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885832339&partnerID=8YFLogxK
U2 - 10.1007/s10040-013-1020-1
DO - 10.1007/s10040-013-1020-1
M3 - Article
VL - 21
SP - 1429
EP - 1445
JO - Hydrogeology Journal
JF - Hydrogeology Journal
SN - 1431-2174
IS - 7
ER -