Fault or frac? Source mechanism and B-value detection of fault fracturing - A Barnett case study

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fault or frac? Source mechanism and B-value detection of fault fracturing - A Barnett case study

Popis výsledku v původním jazyce

Microseismic monitoring is necessary to optimize hydraulic stimulation in unconventional reservoirs. Recognizing the difference between reactivating pre-existing joints and tectonic faults allows engineers to improve efficiency by avoiding stimulation offaults that may intersect aquifers and do not contribute to hydrocarbon production. Gutenberg and Richter (1954) proposed a relationship of size of events and number of events for a given area to be log N = A -bMs, where the slope b1 for tectonic faultearthquakes. Maxwell et al. (2009) and Downie et al. (2010) observed a slope of b2 for hydraulically stimulated fracture events. We show that source mechanism inversion of wide azimuth microseismic data acquired with buried array technology can provide this information in real time for each event. We do this on the basis that observed fracture and fault events exhibit unique source mechanisms, allowing us to calculate b values for thousands of events grouped by their source mechanism. Th

Název v anglickém jazyce

Fault or frac? Source mechanism and B-value detection of fault fracturing - A Barnett case study

Popis výsledku anglicky

Microseismic monitoring is necessary to optimize hydraulic stimulation in unconventional reservoirs. Recognizing the difference between reactivating pre-existing joints and tectonic faults allows engineers to improve efficiency by avoiding stimulation offaults that may intersect aquifers and do not contribute to hydrocarbon production. Gutenberg and Richter (1954) proposed a relationship of size of events and number of events for a given area to be log N = A -bMs, where the slope b1 for tectonic faultearthquakes. Maxwell et al. (2009) and Downie et al. (2010) observed a slope of b2 for hydraulically stimulated fracture events. We show that source mechanism inversion of wide azimuth microseismic data acquired with buried array technology can provide this information in real time for each event. We do this on the basis that observed fracture and fault events exhibit unique source mechanisms, allowing us to calculate b values for thousands of events grouped by their source mechanism. Th

Druh

D - Stať ve sborníku

CEP obor

DC - Seismologie, vulkanologie a struktura Země

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Incorporating SPE EUROPEC 2011

ISBN

978-1-61782-966-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

545-549

Název nakladatele

Curran Associates

Místo vydání

New York

Místo konání akce

Vienna

Datum konání akce

23. 5. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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