MICROSEISMIC EVENT DETECTION USING DIFFERENT ALGORITHMS ON REAL DATA FROM PATCH ARRAY GEOPHONE GRID FROM EASTERN POMERANIA FRACTURING JOB - Publication - Bridge of Knowledge

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MICROSEISMIC EVENT DETECTION USING DIFFERENT ALGORITHMS ON REAL DATA FROM PATCH ARRAY GEOPHONE GRID FROM EASTERN POMERANIA FRACTURING JOB

Abstract

The microseismic monitoring is a method of monitoring of fracture propagation during hydraulic fracturing process. Hydraulic fracturing is a method of reservoir stimulation used especially for unconventional gas recovery. A matrix of several thousand geophones is placed on the surface of earth to record every little tremor of ground induced by fracturing process. Afterwards, the signal is analysed and the place of tremor occurrence is calculated. The detection of microseismic event is not trivial especially in noisy surface environment. With the lack of precise data on parameters of medium it is hard to sum signals from individual geophones so that the useful signal add up and allow to distinguish it from noise. The authors propose processing chain that allows detection of microseismic events for patch array receiver configuration. For each stage of summation different algorithm is used. Modified Kalman filter is used for ach line, then wavelet decomposition for each patch, and last STA/LTA for the final sum of signals. Microseismic strong event and perforation shot real data is analysed.

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Details

Category:
Conference activity
Type:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:
17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining strony 253 - 260
ISSN:
1314-2704
Language:
English
Publication year:
2017
Bibliographic description:
Kmieć M., Antoszkiewicz M., Jankowski R., Szkodo M.: MICROSEISMIC EVENT DETECTION USING DIFFERENT ALGORITHMS ON REAL DATA FROM PATCH ARRAY GEOPHONE GRID FROM EASTERN POMERANIA FRACTURING JOB// 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining/ : , 2017, s.253-260
DOI:
Digital Object Identifier (open in new tab) 10.5593/sgem2017/14/s05.032
Verified by:
Gdańsk University of Technology

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