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Spring 2021
Alberta’s oil sands deposits are the third-largest proven crude oil reserve in the world. However, only 20% of the bitumen in Alberta’s oil sands are shallow enough to be recoverable by surface mining techniques; the remaining 80% can only be extracted using in-situ techniques that involve the...
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Numerical Assessment of the Maximum Operating Pressure for SAGD Projects by Considering the Intrinsic Shale Anisotropy
Download2017-01-01
Ehsan Rahmati, Alireza Nouri, Vahidoddin Fattahpour, Japan Trivedi
This paper investigates the effect of anisotropic behavior of caprock shales on the caprock failure pressure in SAGD projects. Shales and mudstones exhibit strong anisotropy at the micro and macro scales. However, the anisotropic behavior has been neglected in the existing published works on...
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Numerical Assessment of Caprock Integrity in SAGD Operations Considering Mechanical Anisotropic Behavior of Shale Layers
DownloadSpring 2016
There has been an increasing awareness of the importance of caprock integrity during Steam Assisted Gravity Drainage (SAGD) operations. However, mathematical tools that have been developed for caprock integrity studies have not incorporated an important characteristic of cap shales, which is the...
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Fall 2016
Two major applications of microseismic (MS) monitoring in petroleum engineering are hydraulic fracturing operations and caprock integrity assurance. With respect to caprock integrity, this research has investigated the observation of the absence of detectable magnitudes of microseismic events as...