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Abstract

Broadband seismic data is distinctively different from conventional ‘band-limited’ seismic data in appearance as a result of broader information content. Common reactions from interpreters encountering broadband seismic data for the first time are addressed. This paper illustrates these concerns and responds with suggestions to overcome these obstacles to broader adoption. Broadband has been promoted as a resolution solution, causing interpreters to anticipate higher frequencies at depth than is possible given the frequency-dependent attenuation of the earth. Broader frequencies result in a sharper wavelet with less side-lobe energy, causing some reflectors that were artifacts of side-lobe energy to disappear, radically changing the appearance but giving better ties to well data. The additional low frequencies of broadband data are crucial in delivering more stable and higher fidelity inversion results. Popular frequency-related seismic attributes such as ‘sweetness’ are also significantly improved by the additional low frequencies. Once seismic interpreters understand the reasons for the radically different appearance of broadband seismic data and start taking advantage of the additional information content and higher fidelity, it can be expected that this data will be demanded as standard.

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/content/papers/10.3997/2214-4609.20140493
2014-06-16
2024-03-29
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20140493
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