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Volume 28, Issue 2
  • ISSN: 1354-0793
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Abstract

The Bowland Shale Formation is one of the most promising targets for unconventional exploration in the United Kingdom, with estimated resources large enough to supply the country's entire natural gas consumption for 50 years. However, development of the Bowland Shale has stalled due to concerns over hydraulic-fracturing-induced seismicity. Only three wells have been drilled and hydraulic-fractured to date in the Bowland Shale, and all three have produced levels of seismicity of sufficient magnitude to be felt at the surface. Susceptibility to induced seismicity will be determined by the presence of critically stressed faults. However, such faults can go undetected in conventional interpretation of 2D or 3D seismic surveys if they are shorter than the resolution retrievable from a seismic survey, or if they have low (and in some cases even zero) vertical displacement. In such cases, the faults that cause induced seismicity may only be visible via microseismic observations once they are 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 tested in a 3D seismic survey that was acquired over the Preston New Road site, where two shale-gas wells were hydraulic-fractured in the Bowland Shale in 2018 and 2019, obtaining fault planes with lengths between 400 and 1500 m. Fault slip potential was then estimated by integrating the obtained faults with the formation's stress and pore pressure conditions (with the Bowland shale also being significantly overpressured), and several critically stressed faults were identified near the previously hydraulic fractured wells. However, the faults that induced the largest seismic events in the Preston New Road site, of 200 m in length for seismic events of magnitudes below 3.0 (as imaged with a multicomponent, downhole microseismic monitoring array deployed during the hydraulic-fracturing stimulations), could not be identified in the 3D seismic survey, which only mapped fault planes larger than 400 m in length.

© 2022 The Author(s). Published by The Geological Society of London for GSL and EAGE

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2021-12-07
2024-04-23

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References

  1. Abercrombie, R. and Leary, P . 1993. Source parameters of small earthquakes recorded at 2.5 km depth, Cajon Pass, southern California: implications for earthquake scaling. Geophysical Research Letters, 20, 1511–1514, https://doi.org/10.1029/93GL00367
     [Google Scholar]
  2. Anderson, E.M. 1951. The Dynamics of Faulting and Dyke Formation with Applications to Britain. Edinburgh: Oliver and Boyd.
     [Google Scholar]
  3. Anderson, I. and Underhill, J.R . 2020. Structural constraints on Lower Carboniferous shale gas exploration in the Craven Basin, NW England. Petroleum Geosciences, 26, 303–324, https://doi.org/10.1144/petgeo2019-125
     [Google Scholar]
  4. Anderson, J.G., Wesnousky, S.G. and Stirling, M.W . 1996. Earthquake size as a function of fault slip rate. Bulletin of the Seismological Society of America, 86, 683–690.
     [Google Scholar]
  5. Andrews, I . 2013. The Carboniferous Bowland Shale gas study: geology and resource estimation. British Geological Survey for Department of Energy and Climate Change, https://www.ogauthority.co.uk/media/2782/bgs_decc_bowlandshalegasreport_main_report.pdf
     [Google Scholar]
  6. Bahorich, M. and Farmer, S . 1995. 3-D seismic discontinuity for faults and stratigraphic features: the coherence cube. The Leading Edge, 14, 1053–1058, https://doi.org/10.1190/1.1437077
     [Google Scholar]
  7. Bohnhoff, M., Kwiatek, G. and Dresen, G . 2016. Von der Gesteinsprobe bis zur Plattengrenze: Skalenübergreifende Analyse von Bruchprozessen. System Erde, 6, 50–55, https://doi.org/10.2312/GFZ.syserde.06.01.8
     [Google Scholar]
  8. Chopra, S. and Marfurt, K . 2007. Seismic curvature attributes for mapping faults/fractures, and other stratigraphic features. Recorder, 32, 37–41. Retrieved fromhttps://csegrecorder.com/articles/view/seismic-curvature-attributes-for-mapping-faults-fractures-and-other
     [Google Scholar]
  9. Clarke, H., Eisner, L., Styles, P. and Turner, P . 2014. Felt seismicity associated with shale gas hydraulic fracturing: the first documented example in Europe. Geophysical Research Letters, 41, 8308–8314, https://doi.org/10.1002/2014GL062047
     [Google Scholar]
  10. Clarke, H., Turner, P., Bustin, R. M., Riley, N. and Besly, B . 2018. Shale gas resources of the Bowland Basin, NW England: a holistic study. Petroleum Geoscience, 24, 287–322, https://doi.org/10.1144/petgeo2017-066
     [Google Scholar]
  11. Clarke, H., Soroush, H. and Wood, T. 2019a. SPE-195563-MS. Preston New Road: The Role of Geomechanics in Successful Drilling of the UK's First Horizontal Shale Gas Well. SPE Europec featured at 81st EAGE Conference and Exhibition, 3–6 June 2019, London, England, UK.
     [Google Scholar]
  12. Clarke, H., Verdon, J.P., Kettlety, T., Baird, A.F. and Kendall, J.-M . 2019b. Real-time imaging, forecasting, and management of human-induced seismicity at Preston New Road, Lancashire, England. Seismological Research Letters, 90, 1902–1915, https://doi.org/10.1785/0220190110
     [Google Scholar]
  13. Cowie, P.A. and Scholz, C.H . 1992. Displacement-length scaling relationship for faults: data synthesis and discussion. Journal of Structural Geology, 14, 1149–1156, https://doi.org/10.1016/0191-8141(92)90066-6
     [Google Scholar]
  14. Cuadrilla Bowland Ltd 2019. Hydraulic Fracture Plan PNR 2. Retrieved May 2021, fromhttps://consult.environment-agency.gov.uk/onshore-oil-and-gas/information-on-cuadrillas-preston-new-road-site/user_uploads/pnr-2-hfp-v3.0.pdf
  15. Dawers, N.H., Anders, M.H. and Scholz, C.H . 1993. Growth of normal faults: displacement-length scaling. GeologySearch, 21, 1107–1110.
     [Google Scholar]
  16. Hale, D . 2013. Methods to compute fault images, extract fault surfaces, and estimate fault throws from 3D seismic images. Geophysics, 78, O33–O43, https://doi.org/10.1190/geo2012-0331.1
     [Google Scholar]
  17. Holmgren, J.M. and Werner, M.J . 2021. Raspberry shake instruments provide initial ground-motion assessment of the induced seismicity at the united downs deep geothermal power project in Cornwall, United Kingdom. The Seismic Record, 1, 27–34, https://doi.org/10.1785/0320210010
     [Google Scholar]
  18. Kanamori, H. and Brodsky, E.E. 2004. The physics of earthquakes. Reports on Progress in Physics, 67, 1429–1496, https://doi.org/10.1088/0034-4885/67/8/R03
     [Google Scholar]
  19. Kendall, J.-M., Butcher, A., Stork, A.L. and Verdon, J.P . 2019. How big is a small earthquake? Challenges in determining microseismic magnitudes. First Break, 37, 51–56, https://doi.org/10.3997/1365-2397.n0015
     [Google Scholar]
  20. Kettlety, T. and Verdon, J.P . 2021. Fault triggering mechanisms for hydraulic fracturing-induced seismicity from the Preston New Road, UK Case Study. Frontiers in Earth Science, 9, https://doi.org/10.3389/feart.2021.670771
     [Google Scholar]
  21. Kettlety, T., Verdon, J.P., Butcher, A., Hampson, M. and Craddock, L . 2021. High-resolution imaging of the ML 2.9 August 2019 earthquake in Lancashire, United Kingdom, induced by hydraulic fracturing during Preston New Road PNR-2 operations. Seismological Research Letters, 92, 151–169, https://doi.org/10.1785/0220200187
     [Google Scholar]
  22. Kwiatek, G., Saarno, T., Ader, T., Bluemle, F., Bohnhoff, M., Chendorain, M. , … and Passmore, P. 2019. Controlling fluid-induced seismicity during a 6.1-km-deep geothermal stimulation in Finland. Science, https://doi.org/10.1126/sciadv.aav7224
     [Google Scholar]
  23. Mustanen, D., Fianu, J. and Pucknell, J. 2017. Account of hydraulically fractured onshore wells in the UK and seismicity associated with these wells. Journal of Petroleum Science and Engineering, 158, 202–221, https://doi.org/10.1016/j.petrol.2017.07.053
     [Google Scholar]
  24. Nievas, C.I., Bommer, J.J., Crowley, H. and Elk, J.V . 2020. Global occurrence and impact of small-to-medium magnitude earthquakes: a statistical analysis. Bulletin of Earthquake Engineering, 18, 1–35, https://doi.org/10.1007/s10518-019-00718-w
     [Google Scholar]
  25. OGA 2019. Interim Report of the Scientific Analysis of Data Gathered from Cuadrilla's Operations at Preston New Road. UK Oil and Gas Authority.
     [Google Scholar]
  26. Roberts, A . 2001. Curvature attributes and their application to 3D interpreted horizons. First Break, 19, 85–100, https://doi.org/10.1046/j.0263-5046.2001.00142.x
     [Google Scholar]
  27. Shapiro, S.A., Krüger, O.S., Dinske, C. and Langenbruch, C . 2011. Magnitudes of induced earthquakes and geometric scales of fluid-stimulated rock volumes. Geophysics, 76, WC55–WC63, https://doi.org/10.1190/geo2010-0349.1
     [Google Scholar]
  28. Sinha, S., Routh, P.S., Anno, P.D. and Castagna, J.P . 2005. Spectral decomposition of seismic data with continuous-wavelet transform. Geophysics, 70, 19–25, https://doi.org/10.1190/1.2127113
     [Google Scholar]
  29. Smith, N., Turner, P. and Williams, G. 2010. UK data and analysis for shale gas prospectivity. In: Vining, B. and Pickering, S. (eds) Petroleum Geology: From Mature Basins to New Frontiers: Proceedings of the 7th Petroleum Geology Conference. Geological Society of London, 1087–1098. Retrieved fromhttp://nora.nerc.ac.uk/id/eprint/13090/
     [Google Scholar]
  30. Verdon, J.P. and Bommer, J.J . 2021. Green, yellow, red, or out of the blue? An assessment of Traffic Light Schemes to mitigate the impact of hydraulic fracturing-induced seismicity. Journal of Seismology, 25, 301–326, https://doi.org/10.1007/s10950-020-09966-9
     [Google Scholar]
  31. Verdon, J.P. and Budge, J . 2018. Examining the capability of statistical models to mitigate induced seismicity during hydraulic fracturing of shale gas reservoirs. Bulletin of the Seismological Society of America, 108, 690–701, https://doi.org/10.1785/0120170207
     [Google Scholar]
  32. Walsh, F.R. and Zoback, M.D . 2016. Probabilistic assessment of potential fault slip related to injection-induced earthquakes: application to north-central Oklahoma, USA. Geology, 44, 991–994, https://doi.org/10.1130/G38275.1
     [Google Scholar]
  33. Walsh, R., Zoback, M.D., Lele, S.P., Pais, D., Weingarten, M. and Tyrrell, T. 2018. FSP 2.0: a program for probabilistic estimation of fault slip potential resulting from fluid injection. Retrieved fromhttps://scits.stanford.edu/fault-slip-potential-fsp
  34. Wesnousky, S.G . 1988. Seismological and structural evolution of strike-slip faults. Nature, 335, 340–343, https://doi.org/10.1038/335340a0
     [Google Scholar]
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3D seismic interpretation and fault slip potential analysis from hydraulic fracturing in the Bowland Shale, UK
Petroleum Geoscience 28, petgeo2021-057 (2022); https://doi.org/10.1144/petgeo2021-057
/content/journals/10.1144/petgeo2021-057
/content/journals/10.1144/petgeo2021-057
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