Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK

German Rodriguez

doi:10.3997/2214-4609.202131084

Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK

German Rodriguez

School of Earth Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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Abstract

The Bowland Shale in central United Kingdom, has shown to be very susceptible to induce anomalously large seismicity during hydraulic fracturing stimulations of shale-gas wells. In part, due to the presence of pre-existent, critically-stressed, strike-slip faults that were not previously detected in 2D or 3D
seismic surveys due to their low (and in some cases even null) vertical displacement, and only visible through the location and fault planes of microseismic events once these faults were reactivated. To better identify fault planes from 3D seismic images, and their reactivation potential due to hydraulic
fracturing, a high-resolution fault-detection attribute was first tested in the same 3D seismic survey and at the same depth where the two most recently shale-gas wells were hydraulic-fractured in the Bowland Shale in 2018 and 2019. Their fault slip potential was then estimated by integrating the obtained faults with the formation’s stress and pore pressure conditions, where several critically stressed faults were identified near the previously hydraulic fractured wells and with similar location and orientation than the induced seismicity reported for the same wells.

Original language	English
Title of host publication	EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity
Publisher	European Association of Geoscientists and Engineers, EAGE
Pages	1 - 5
Number of pages	5
Volume	Mar 2021
DOIs	https://doi.org/10.3997/2214-4609.202131084
Publication status	Published - 1 Mar 2021
Event	EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity - Virtual Conference Duration: 1 Mar 2021 → 4 Mar 2021 https://www.earthdoc.org/content/proceedings/geotech-2021-ws-induced-seismicity

Publication series

Name	Conference Proceedings
Publisher	European Association of Geoscientists and Engineers
Number	1
Volume	2021
ISSN (Electronic)	2214-4609

Conference

Conference	EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity
Period	1/03/21 → 4/03/21
Internet address	https://www.earthdoc.org/content/proceedings/geotech-2021-ws-induced-seismicity

Bibliographical note

Funding Information:
The UK Onshore Geophysical Library (UKOGL) is deeply thanked for supplying the 3D seismic dataset analysed in this case study, and dGB Earth Sciences for supplying an academic license of OpendTect Pro than includes the thinned fault attribute used to extract fault lineaments from 3D seismic images. This study is a product of the Bristol University Microseismicity Projects (BUMPS) group.

Publisher Copyright:
© EAGE Publications BV 2021.

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This is the accepted author manuscript (AAM). The final published version (version of record) is available online via European Association of Geoscientists & Engineers at https://www.earthdoc.org/content/papers/10.3997/2214-4609.202131084. Please refer to any applicable terms of use of the publisher.
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Rodriguez, G. (2021). Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK. In EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity (Vol. Mar 2021, pp. 1 - 5). (Conference Proceedings; Vol. 2021, No. 1). European Association of Geoscientists and Engineers, EAGE. https://doi.org/10.3997/2214-4609.202131084

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abstract = "The Bowland Shale in central United Kingdom, has shown to be very susceptible to induce anomalously large seismicity during hydraulic fracturing stimulations of shale-gas wells. In part, due to the presence of pre-existent, critically-stressed, strike-slip faults that were not previously detected in 2D or 3D seismic surveys due to their low (and in some cases even null) vertical displacement, and only visible through the location and fault planes of microseismic events once these faults were reactivated. To better identify fault planes from 3D seismic images, and their reactivation potential due to hydraulic fracturing, a high-resolution fault-detection attribute was first tested in the same 3D seismic survey and at the same depth where the two most recently shale-gas wells were hydraulic-fractured in the Bowland Shale in 2018 and 2019. Their fault slip potential was then estimated by integrating the obtained faults with the formation{\textquoteright}s stress and pore pressure conditions, where several critically stressed faults were identified near the previously hydraulic fractured wells and with similar location and orientation than the induced seismicity reported for the same wells.",

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note = "Funding Information: The UK Onshore Geophysical Library (UKOGL) is deeply thanked for supplying the 3D seismic dataset analysed in this case study, and dGB Earth Sciences for supplying an academic license of OpendTect Pro than includes the thinned fault attribute used to extract fault lineaments from 3D seismic images. This study is a product of the Bristol University Microseismicity Projects (BUMPS) group. Publisher Copyright: {\textcopyright} EAGE Publications BV 2021.; EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity ; Conference date: 01-03-2021 Through 04-03-2021",

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Rodriguez, G 2021, Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK. in EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity. vol. Mar 2021, Conference Proceedings, no. 1, vol. 2021, European Association of Geoscientists and Engineers, EAGE, pp. 1 - 5, EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity, 1/03/21. https://doi.org/10.3997/2214-4609.202131084

Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK. / Rodriguez, German.
EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity. Vol. Mar 2021 European Association of Geoscientists and Engineers, EAGE, 2021. p. 1 - 5 (Conference Proceedings; Vol. 2021, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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N1 - Funding Information: The UK Onshore Geophysical Library (UKOGL) is deeply thanked for supplying the 3D seismic dataset analysed in this case study, and dGB Earth Sciences for supplying an academic license of OpendTect Pro than includes the thinned fault attribute used to extract fault lineaments from 3D seismic images. This study is a product of the Bristol University Microseismicity Projects (BUMPS) group. Publisher Copyright: © EAGE Publications BV 2021.

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N2 - The Bowland Shale in central United Kingdom, has shown to be very susceptible to induce anomalously large seismicity during hydraulic fracturing stimulations of shale-gas wells. In part, due to the presence of pre-existent, critically-stressed, strike-slip faults that were not previously detected in 2D or 3D seismic surveys due to their low (and in some cases even null) vertical displacement, and only visible through the location and fault planes of microseismic events once these faults were reactivated. To better identify fault planes from 3D seismic images, and their reactivation potential due to hydraulic fracturing, a high-resolution fault-detection attribute was first tested in the same 3D seismic survey and at the same depth where the two most recently shale-gas wells were hydraulic-fractured in the Bowland Shale in 2018 and 2019. Their fault slip potential was then estimated by integrating the obtained faults with the formation’s stress and pore pressure conditions, where several critically stressed faults were identified near the previously hydraulic fractured wells and with similar location and orientation than the induced seismicity reported for the same wells.

AB - The Bowland Shale in central United Kingdom, has shown to be very susceptible to induce anomalously large seismicity during hydraulic fracturing stimulations of shale-gas wells. In part, due to the presence of pre-existent, critically-stressed, strike-slip faults that were not previously detected in 2D or 3D seismic surveys due to their low (and in some cases even null) vertical displacement, and only visible through the location and fault planes of microseismic events once these faults were reactivated. To better identify fault planes from 3D seismic images, and their reactivation potential due to hydraulic fracturing, a high-resolution fault-detection attribute was first tested in the same 3D seismic survey and at the same depth where the two most recently shale-gas wells were hydraulic-fractured in the Bowland Shale in 2018 and 2019. Their fault slip potential was then estimated by integrating the obtained faults with the formation’s stress and pore pressure conditions, where several critically stressed faults were identified near the previously hydraulic fractured wells and with similar location and orientation than the induced seismicity reported for the same wells.

U2 - 10.3997/2214-4609.202131084

DO - 10.3997/2214-4609.202131084

M3 - Conference Contribution (Conference Proceeding)

VL - Mar 2021

T3 - Conference Proceedings

SP - 1

EP - 5

BT - EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity

PB - European Association of Geoscientists and Engineers, EAGE

T2 - EAGE GeoTech 2021 First EAGE Workshop on Induced Seismicity

Y2 - 1 March 2021 through 4 March 2021

ER -

Automatic 3D-Seismic Fault Interpretation and Slip Potential Analysis from Hydraulic Fracturing in the Bowland Shale, UK

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