2007•69th EAGE Conference and Exhibition incorporating SPE EUROPEC 2007Requires access
Using Multiple Downhole VSP Arrays for Monitoring and Locating Passive Microseisms in Oil Reservoirs
Zhangxin Chen
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Abstract
A036 Using Multiple Downhole VSP Arrays for Monitoring and Locating Passive Microseisms in Oil Reservoirs Z.C. Chen* (CREWES University of Calgary) SUMMARY Using a classical hypocenter location method which depends only on the first arrival times the uncertainties of the hypocenter location as determined by a microseismic monitoring network composed of multiple VSP downhole geophone arrays in the surrounding wells is calculated. Error analysis illustrates that if the multiple arrays are properly designed the events recorded by this kind of monitoring network can be located at an accuracy of 5-10 m in the areas between the arrays. Compared to the