Fracture Quality From Integrating Time-Lapse VSP and Microseismic Data
Name
Willis_ERL2007.pdf
Size
970.54 KB
Format
Adobe PDF
Checksum (MD5)
f008732231491ecf9eccf4a0b21bd471
Author(s)
Willis, Mark E.
Burns, Daniel R.
Lu, Rongrong
Toksoz, M. Nafi
House, Nancy J.
Date Issued
2007
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;2007-05
Abstract
Tight gas reservoirs are problematic to produce, often requiring multiple stages of hydraulic fracturing in order to create connected pathways through which hydrocarbons may flow. In this paper, we propose a new methodology to characterize the quality of hydraulic fractures. Using synthetic VSP and microseismic data, we test the concept that the rock volume containing open, gas filled fractures will scatter seismic energy more profusely than a volume containing closed, non-productive fractures. By measuring the amount of scattered energy in a time lapse 3D VSP study taken before and after the hydraulic fracturing episode, we hope to be able to compare the productive flow quality of different regions of the hydraulically fractured rock. The microseismic recordings allow us both to locate areas which have been hydraulically fractured and create imaging operators to extract the scattered signals from the time lapse VSP data.
Persistent DSpace Link
