ISSN 1608-5078 (Online)
Hydraulic Fracturing and Microseismicity: Global Perspective in Oil Exploration
Induced microseismicity is a common phenomenon in oil and gas reservoirs due to changes in internal stress accompanied by hydraulic fracturing and oil-gas extraction. These microseismicity can be monitored to understand the direction and type of hydraulic fracturing and pre-existing faults by precise hypocenter location and focal mechanism studies. Normal as well as strike-slip faulting earthquakes occur due to opening up of new cracks/fractures, and thrust/reverse faulting earthquakes due to compaction or closing of existing fractures. Further, frequency-magnitude relation (b-value) and fractal dimension (D-value) of the spatial and temporal clusterization of induced microseismicity may be much useful to characterize the fractures / existing faults and the stress regimes. Seismic tomography, on the other hand, can image the heterogeneous velocity structures / perturbations in the reservoir due to fractures and oil-gas-water contents. A few global case studies are illustrated to understand these processes and to draw attention towards importance of these studies in oil industries.
Hydraulic Fracturing, Microseismicity, Oil Exploration
- Bame, D. and Fehler, M. Conservations of long period earthquakes accompanying hydraulic facturing. Geophys. Res. Lett. 1986. 13. 149-152.
- Cipolla, C., Maxwell, S., Mack, M. Engineering guide to the application of microseismic interpretations. SPE 152165. 2012.
- Gei, D., Eisner, L., Suhadolc, P., Feasibility of estimating vertical transverse isotropy from microseismic data recorded by surface monitoring arrays. Geophysics. 2011. 76. WC117- WC126.
- Grassberger, P. and Procaccia, I. Characterisation of strange attractors.Phys. Rev. Lett. 1983. 50. Pp. 346-349.
- Grob, M. and Van der Bann, M. Inferring in-situ stress changes by statistical analysis of microseismic event characteristics. The Leading Edge. 2011. Pp. 1296-1301. doi: 220.127.116.11.
- Gutenberg, B. and Richter, C. F. Seismicity of the Earth and Associated Phenomena. Princeton University Press, New Jersey. 1954. 310 p.
- Hirata, T. A correlation between the b-value and the fractal dimension of earthquakes. J. Geophys. Res. 1989. 94. Pp. 7507-7514.
- Holland, A. A. Earthquakes Triggered by Hydraulic Fracturing in South-Central Oklahoma. Bull Seism Soc Am. 2013. 103. doi: 10.1785/0120120109
- Kayal, J. R., 2008. Microearthquake Seismology and Seismotectonics of South Asia. Springer, The Netherlands. 2008. 503 p.
- Li, J., Kuleli, S. H., Zhang, H., and Toksöz, M N.Focal mechanism determination of induced microearthquakes in an oil field using full waveforms from shallow and deep seismic networks. Geophysics. 2011. 76(6). doi:10.1190/GEO2011-0030.1
- Maxwell, S. C., Rutledge, J., Jones, R. and Fehler, M. Petroleum reservoir characterization using downhole microseismic monitoring. Geophysics. 2010. 75 ( 5). doi: 10.1190/1.3477966
- Maxwell, S. C., Cho, D., Pope, T., Jones, M., Cipolla, C., Mack M., Henery F., Leonard, J. Enhanced reservoir characterisation using hydraulic fracture microseismicity. SPE 140449. 2011.
- Shapiro, S.A. and Dinske, C. Fluid-induced seismicity: Pressure diffusion and hydraulic fracturing. Geophysical Prospecting. 2009. 57. Pp. 301-310.
- Tselentis, G., Martakis, N., Paraskevopoulos, P., and Lois, A. High-resolution passive seismic tomography (PST) for 3D velocity, Poisson’s ratio and P-wave quality QP in the Delvina hydrocarbon field, southern Albania, Geophysics. 2011. 76(6). doi: 10.1190/1.3560016
- Verdon, J. P., J. Michael Kendall, M. and Maxwell, S. C. A comparison of passive seismic monitoring of fracture stimulation from water and CO2 injection. Geophysics. 2010. 75. No. 3. MA1-MA7
- Waldhauser, F. and Ellsworth, W.L. A double-difference earthquake algorithm: Method and application to the Northern Hayward Fault, California. Bull. Seism. Soc. Am. 2000. 90(6). Pp. 1353-1368.
Mining Geological & Metallurgical Institute of India, Kolkata, India
Kayal J.R. Hydraulic Fracturing and Microseismicity: Global Perspective in Oil Exploration. Georesursy = Georesources. 2017. V. 19. No. 3. Part 1. Pp. 222-228. DOI: https://doi.org/10.18599/grs.19.3.12