Geotechnical Characterization of Clearwater Clay Shale and Comparison of the Properties With Other Cretaceous Clay Shales in North America
- Nadia Shafie Zadeh (University of Alberta) | Rick Chalaturnyk (University of Alberta)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- December 2015
- Document Type
- Journal Paper
- 394 - 411
- 2015.Society of Petroleum Engineers
- Petroleum Geomechanics
- 1 in the last 30 days
- 366 since 2007
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Over the last 30 years, laboratory testing has been conducted to investigate the geotechnical properties of Clearwater clay shales from the Clearwater formation in northeast Alberta, Canada. These properties are important for characterization of the overburden zones above in-situ oil-sands mines and for assessment of caprock integrity in steam-assisted-gravity-drainage (SAGD) projects. In general, caprock-integrity assessments include caprock geological studies, in-situ stress determination, constitutive-property characterization, and numerical simulations, which allow operators to ensure that steam-injection pressure does not cause any risk to the confinement of steam chambers. The aim of this study is to identify and provide the representative parameters that can enhance understanding of the geotechnical behaviour of the Alberta Clearwater formation clay shale. Moreover, it illustrates how the results can be used to extract constitutive model parameters for modelling the behaviour of this class of material. The parameters are also used for complex reservoir-geomechanical simulation for caprock integrity. These parameters are also compared with other Cretaceous clay-shale counterparts in North America.
|File Size||3 MB||Number of Pages||18|
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