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Keywords: reactivation
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5450-MS
... and hydraulic fractures that have been analyzed. Previous works have detailed the nature of the fractures recovered in the core, identifying 375 hydraulic fractures, 309 calcite-sealed natural fractures, and 8 faults (Gale et al., 2018). We studied the likelihood for fractures to be initiated or reactivated...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-326-MS
... to the horizontal wellbore may contribute to well productivity. The microseismic event patterns during stimulation also confirm the (a) stimulation of natural fractures near the wellbore, and (b) shear reactivation of pre-existing faults and fractures parallel to the maximum stress direction. The model built...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-435-MS
... Upstream Oil & Gas displacement hydraulic fracturing strength Fluid Dynamics pore pressure shale permeability measurement shear stress experiment reactivation hydraulic aperture dilation bedding direct shear fractured marcellus flow in porous media aperture effective...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-997-MS
... Abstract There has been lots of discussion on associating microseismic activity with the reactivation of bedding planes near the hydraulic fracture tip. Yet evidence for bedding-plane slip has not been observed in cores of stimulated rock volumes, and a consensus on how to integrate bedding...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902950-MS
... and the potential to use the 3D seismic to predict the risk of casing failure pre-drill. The cause of the casing failure was postulated to be reactivation of pre-existing faults and fractures during fracture stimulation. Fault reactivation has been inferred to occur in the region based on the induced seismicity...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2878217-MS
... of fracture intensity to faults is observed in each. This suggests that the fractures are tectonic in origin and are coeval with faults or are the result of later fault reactivation. To predict fractures in under sampled areas and intervals of the basin, likely fracture formation mechanisms were evaluated...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2671301-MS
... conditions that favored out-of-zone growth and reactivation of geohazards. Additional observations, such as net wellbore pressure measurements and geophysical logs, are used to calibrate the model as well as to further understand the geological, geomechanical and treatment-related variables affecting...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1922708-MS
... rock interfaces during core handling suggesting that these fractures would be preferentially reactivated along the cement-host rock interface during well bore completion. Fracture cement adhering to one of the host rock walls would thus form a fracture skin on one face of the reactivated natural...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1921503-MS
... reactivate during hydraulic stimulation and interact with hydraulic fractures producing a complex and highly productive natural-hydraulic fracture network. This phenomenon and the quality of the resulting productive stimulated rock volume (P-SRV) is primarily a function of the natural fracture network...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1922814-MS
... quality reflection seismic, microseismic imaging, and moderate structural complexity of the liquids-rich gas and tight oil Eagle Ford shale makes it an ideal place to study hydraulic fracturing in tight rocks. Microseismic monitoring results showed clear structural trends relating to reactivation...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1932416-MS
... «fracability» qualifies the shale gas in terms of propensity to develop a stimulated reservoir volume (SRV) in combination with hydraulic fractures that have the desired geometry and sustainable conductivity. The geomechanical indicators characterizing the fracability include: the likelihood of reactivation...

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