Full text loading...
-
Vector Fidelity of Downhole Receivers for Microseismic Monitoring Revisited
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Fifth EAGE Passive Seismic Workshop, Sep 2014, Volume 2014, p.1 - 5
Abstract
Summary
3-C seismic receivers in a single vertical well are used to monitor micro-seismic activity in unconventional reservoirs. In such cases, locations of micro-seismic events depend on a velocity model and a particle polarization of a body-wave arrival. In this abstract, we show evidence for the lack of vector fidelity on downhole receivers. We are presenting a workflow to identify receivers with the lack of vector fidelity and a methodology for correcting the sensitivity of the components of the receiver to preserve the vector fidelity. This methodology enabled us to correct a 13° error in event backazimuth in the presented case study.
© EAGE Publications BV