Fractal dimension of microseismic events via the two-point correlation dimension, and its correlation with b values

J. P. Verdon*

*Corresponding author for this work

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

Abstract

The magnitude distribution of a microseismic dataset can be described by the b value. Similarly, the spatial distribution of events can be described by the two-point correlation dimension (Dc), which provides an objective and quantifiable assessment of the dimensionality of a datasets (i.e., do the events fall along a linear or planar feature, or fill up a 3D volume?). Typically, spatial distributions are identified by eye (the interpreter will indentify linear or planar features on a hypocentral map). We begin this paper by describing the calculation of Dc, before going on to evaluate the correlation between Dc and the seismic b value. We perform our analysis on a range of microseismic datasets, including hydraulic fracture stimulation, enhanced oil recovery and a mining dataset. It has been suggested that elevated b values indicate a more distributed deformation. We find strong, statistically significant correlation between b and Dc, implying that the inferences made regarding b values during reservoir stimulation stimulation - That elevated b values correspond to areas with greater stimulation complexity, while lower b values imply activity on simpler, planar features - Are appropriate.

Original languageEnglish
Title of host publication4th EAGE Passive Seismic Workshop
PublisherEuropean Association of Geoscientists and Engineers, EAGE
Publication statusPublished - 2013
Event4th EAGE Passive Seismic Workshop - Amsterdam, Netherlands
Duration: 17 Mar 201320 Mar 2013

Conference

Conference4th EAGE Passive Seismic Workshop
CountryNetherlands
CityAmsterdam
Period17/03/1320/03/13

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