Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale
We have studied changes of static and dynamic elastic properties of the organic-rich Mancos shale caused by heating to the temperature within the range 380°C-550°C. An increase of ultrasonic velocities and static Young's moduli has been observed in the samples that experienced temperatures up t...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Conference Paper |
| Published: |
SEG
2014
|
| Online Access: | http://hdl.handle.net/20.500.11937/38658 |
| _version_ | 1848755380367130624 |
|---|---|
| author | Pervukhina, M. Uvarova, Y. Dautriat, J. Dewhurst, D. Patrusheva, N. Lebedev, Maxim |
| author2 | SEG |
| author_facet | SEG Pervukhina, M. Uvarova, Y. Dautriat, J. Dewhurst, D. Patrusheva, N. Lebedev, Maxim |
| author_sort | Pervukhina, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We have studied changes of static and dynamic elastic properties of the organic-rich Mancos shale caused by heating to the temperature within the range 380°C-550°C. An increase of ultrasonic velocities and static Young's moduli has been observed in the samples that experienced temperatures up to ~400°C. Further heating to temperatures up to 550°C has led to the decrease of elastic moduli. The samples subjected to temperatures above 430°C show an increase in stress sensitivity, which implies microcrack generation. Micro-CT images of small samples have been obtained to inspect the microstructural changes caused by this dry pyrolysis. Comparison of the registered micro-CT images of Mancos shale samples subjected to temperatures up to 470°C shows significant shrinkage of the kerogen that fills pore spaces resulted from bitumen expulsion into the pores. |
| first_indexed | 2025-11-14T08:55:23Z |
| format | Conference Paper |
| id | curtin-20.500.11937-38658 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:55:23Z |
| publishDate | 2014 |
| publisher | SEG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-386582018-12-14T00:56:19Z Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale Pervukhina, M. Uvarova, Y. Dautriat, J. Dewhurst, D. Patrusheva, N. Lebedev, Maxim SEG We have studied changes of static and dynamic elastic properties of the organic-rich Mancos shale caused by heating to the temperature within the range 380°C-550°C. An increase of ultrasonic velocities and static Young's moduli has been observed in the samples that experienced temperatures up to ~400°C. Further heating to temperatures up to 550°C has led to the decrease of elastic moduli. The samples subjected to temperatures above 430°C show an increase in stress sensitivity, which implies microcrack generation. Micro-CT images of small samples have been obtained to inspect the microstructural changes caused by this dry pyrolysis. Comparison of the registered micro-CT images of Mancos shale samples subjected to temperatures up to 470°C shows significant shrinkage of the kerogen that fills pore spaces resulted from bitumen expulsion into the pores. 2014 Conference Paper http://hdl.handle.net/20.500.11937/38658 10.1190/segam2014-1054.1 SEG restricted |
| spellingShingle | Pervukhina, M. Uvarova, Y. Dautriat, J. Dewhurst, D. Patrusheva, N. Lebedev, Maxim Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title | Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title_full | Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title_fullStr | Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title_full_unstemmed | Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title_short | Effect of pyrolysis on elastic properties and microstructure of organic-rich Mancos shale |
| title_sort | effect of pyrolysis on elastic properties and microstructure of organic-rich mancos shale |
| url | http://hdl.handle.net/20.500.11937/38658 |