monticello reservoir
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1992 ◽  
Vol 82 (4) ◽  
pp. 1867-1888
Author(s):  
Kusala Rajendran ◽  
Pradeep Talwani

Abstract Following reservoir impoundment, stress changes occur due to elastic response and changes in pore pressure due to drained and undrained responses of the substratum. Elastic response may stabilize or destabilize the reservoir environment, depending on the nature of pre-existing stress field. However, the increase in pore pressure always leads to weakening of the rocks, facilitating the onset of seismicity. In most reservoirs, we usually observe the coupled poroelastic effect, and it is usually difficult to isolate individual contributions. Due to the availability of detailed seismicity and geological and in situ stress data at Monticello Reservoir, it was possible to study various factors that control the mechanism of reservoir-induced seismicity. Our results suggest that, during the filling period, the instability resulted from elastic, undrained, and possibly onset of drained response. Subsequently, the seismicity showed a more consistent pattern associated with diffusion of pore pressure.


1982 ◽  
Vol 87 (B8) ◽  
pp. 6945-6957 ◽  
Author(s):  
Donald T. Secor ◽  
Lawrence S. Peck ◽  
David M. Pitcher ◽  
David C. Prowell ◽  
David H. Simpson ◽  
...  

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