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Preliminary Detection of Induced Microseismicity in an Onshore Oilfield: A Pilot Case Study from Abu DhabiNormal access

Authors: M. Ali, M. Li, G. Tao, W. Alakberi and H. Alnuaimi
Event name: Sixth EAGE Workshop on Passive Seismic
Session: Poster Session 1
Publication date: 31 January 2016
DOI: 10.3997/2214-4609.201600025
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 3.04Mb )
Price: € 20

A pilot case study of microseismic monitoring using a single vertical receiver array in an onshore oilfield in Abu Dhabi is presented. For the majority of the data, the background noise level is high (SNR<1 db), which makes it very challenging to find well-defined P and S waves simultaneously. A total of 180 potentially injection/production induced microseismic events have been detected by a combination of band-pass filtering, STA/LTA and apparent velocity estimation methods. However, further analysis such as time-frequency analysis, matched filtering method and hodogram analysis are still required to suppress the noise and verify the events.

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