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Microseismicity To Production - What Do We Need To Measure First?
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Seventh EAGE Workshop on Passive Seismic 2018, Mar 2018, Volume 2018, p.1 - 5
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Abstract
Currently there are four widely discussed theories how microseismicity interacts with hydraulic fracturing. Each theory has different implication for interpretation of microseismicity in the reservoir modeling. Therefore, better understanding of relationship between microseismicity and hydraulic fracture stimulation is needed before further reservoir models are developed and applied. That would lead to more precise estimation of hydrocarbon production and give greater value to microseismic. We may use either seismic or non-seismic methods. While non-seismic methods provide independent view on hydraulic fracture they seem to be limited in the amount of information on the relationship between hydraulic fracture and microseismicity. We propose microseismic monitoring of directivity as the most promising way to find out the orientation of fault planes and determine a slip vector on them. It seems to be the most suitable method but requires sensors in multiple azimuths and well coupled due to high frequency signals. We suggest using DAS sensors which are capable of sampling high frequency and may provide continuous data along long offset at reasonable costs.