Abstract
Deep saline aquifers and depleted oil fields have been identified as two main potential geological sinks for CO2 sequestration due to their preferable geological conditions. However, correct understanding of their in-situ chemicomechanical properties (prior to CO2 injection) is necessary to evaluate their safe and long-term CO2 storage potential. This study therefore investigated the effect of brine and oil saturations on the mechanical and acoustic properties of reservoir rock by performing a series of strength tests using acoustic emission technology. According to the test results, the mechanical responses of reservoir rocks vary with the saturation condition, and the existence of brine and oil in water-saturated reservoir rocks causes their mechanical properties to be noticeably enhanced.
| Original language | English |
|---|---|
| Pages (from-to) | 544-551 |
| Number of pages | 8 |
| Journal | Energy Procedia |
| Volume | 88 |
| DOIs | |
| Publication status | Published - 1 Jun 2016 |
Keywords
- CO sequestration
- Compressive strength
- Deep saline aquifers
- Oil fields
Cite this
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Deformation mechanics and acoustic propagation in reservoir rock under brine and oil saturation : An experimental study. / Rathnaweera, T. D.; Romain, L.; Ranjith, P. G.; Perera, M. S. A.
In: Energy Procedia, Vol. 88, 01.06.2016, p. 544-551.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Deformation mechanics and acoustic propagation in reservoir rock under brine and oil saturation
T2 - An experimental study
AU - Rathnaweera, T. D.
AU - Romain, L.
AU - Ranjith, P. G.
AU - Perera, M. S. A.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Deep saline aquifers and depleted oil fields have been identified as two main potential geological sinks for CO2 sequestration due to their preferable geological conditions. However, correct understanding of their in-situ chemicomechanical properties (prior to CO2 injection) is necessary to evaluate their safe and long-term CO2 storage potential. This study therefore investigated the effect of brine and oil saturations on the mechanical and acoustic properties of reservoir rock by performing a series of strength tests using acoustic emission technology. According to the test results, the mechanical responses of reservoir rocks vary with the saturation condition, and the existence of brine and oil in water-saturated reservoir rocks causes their mechanical properties to be noticeably enhanced.
AB - Deep saline aquifers and depleted oil fields have been identified as two main potential geological sinks for CO2 sequestration due to their preferable geological conditions. However, correct understanding of their in-situ chemicomechanical properties (prior to CO2 injection) is necessary to evaluate their safe and long-term CO2 storage potential. This study therefore investigated the effect of brine and oil saturations on the mechanical and acoustic properties of reservoir rock by performing a series of strength tests using acoustic emission technology. According to the test results, the mechanical responses of reservoir rocks vary with the saturation condition, and the existence of brine and oil in water-saturated reservoir rocks causes their mechanical properties to be noticeably enhanced.
KW - CO sequestration
KW - Compressive strength
KW - Deep saline aquifers
KW - Oil fields
UR - http://www.scopus.com/inward/record.url?scp=85007557052&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2016.06.076
DO - 10.1016/j.egypro.2016.06.076
M3 - Article
VL - 88
SP - 544
EP - 551
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
ER -