Design optimization of surface-based microseismic monitoring system for hydraulic fracturing
Yu Yang-yang1, Liang Chuntao1, Kang Liang2, Yi Chen2, Wu Furong2
1. Key Laboratory of Earth Exploration & Information Techniques, the Ministry of Education, Chengdu University of Technology, Chengdu, Sichuan 610059, China; 2. Geophysical Company, Chuanqing Drilling Engineering Company Limited, CNPC, Chengdu, Sichuan 610213, China
Abstract：For microseismic monitoring of hydraulic fracturing,a monitoring system plays a very important role to the microseismic location accuracy.We have designed and tested a few surface-based microseismic monitoring systems,and evaluate them by processing synthetic seismic signals with the source scanning algorithm.These designs use different receiver arrays,receiver intervals,and coverage.The following understandings are obtained:① The star shape layout is better than the net shape layout when the number of receivers is equal; ② Larger layout range,more receiver lines and larger receiver intervals may achieve better results and save the cost with a given number of receivers; ③ The layout radius of the monitoring system should be equal to or larger than the source depth; ④ If the source areas are known,more receiver lines should be above the source areas.
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