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Mineralogy-based brittleness prediction from surface seismic data: Application to the Barnett Shale
| Content Provider | Semantic Scholar |
|---|---|
| Author | Altamar, Roderick Perez Marfurt, Kurt |
| Copyright Year | 2014 |
| Abstract | AbstractDifferentiating brittle and ductile rocks from surface seismic data is the key to efficient well location and completion. Brittleness average estimates based only on elastic parameters are easy to use but require empirical calibration. In contrast, brittleness index (BI) estimates are based on mineralogy laboratory measurements and, indeed, cannot be directly measured from surface seismic data. These two measures correlate reasonably well in the quartz-rich Barnett Shale, but they provide conflicting estimates of brittleness in the calcite-rich Viola, Forestburg, Upper Barnett, and Marble Falls limestone formations. Specifically, the BI accurately predicts limestone formations that form fracture barriers to be ductile, whereas the brittleness average does not. We used elemental capture spectroscopy and elastic logs measured in the same cored well to design a 2D λρ–μρ to brittleness template. We computed λρ and μρ volumes through prestack seismic inversion and calibrate the results with the λρ–μρ t. |
| File Format | PDF HTM / HTML |
| DOI | 10.1190/INT-2013-0161.1 |
| Volume Number | 2 |
| Alternate Webpage(s) | http://mcee.ou.edu/aaspi/publications/2014/roderick_interpretation_14.pdf |
| Alternate Webpage(s) | http://roderickperez.edublogs.org/files/2015/01/Perez-and-Marfurt-2014-1azzswr.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
