New Insights from Legacy Seismic Data, Offshore Nova Scotia

N. Morrison, K. Nunn, M. Luheshi, E. Dutcher, A. Raj, C. Evans, S. Dasgupta, E. Gofer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Reprocessing and analysis of legacy datasets has become an economic alternative to acquiring new data. Beginning in 2020, the Nova Scotia Department of Energy and Mines underwent a project with Schlumberger to reprocess the Barrington narrow-azimuth, 3D surface seismic survey and subsequently complete a rock physics and AVO study using the newly reprocessed data. Using contemporary processing techniques such as broadband processing and high-resolution tomography, the 3D survey was reprocessed to a full tilted transverse isotropy Kirchhoff prestack depth migration (KPSDM) from the legacy isotropic Kirchhoff time migration. The reprocessed data has provided significant data quality improvement, specifically within the deep cretaceous and Jurassic sections. This enhancement has revealed several interesting anomalies in the Jurassic, specifically from a source rock perspective, and have reconfirmed previous play concepts. The rock physics, AVO and Inversion analysis revealed features such as clear conformance with structure, gathers dimming with offset and downdip amplitude dimming and terminations.

Original languageEnglish
Title of host publication1st EAGE Workshop on East Canada Offshore Exploration
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Electronic)9789462824010
DOIs
StatePublished - 2021
Externally publishedYes
Event1st EAGE Workshop on East Canada Offshore Exploration - Virtual, Online
Duration: 15 Nov 202117 Nov 2021

Publication series

Name1st EAGE Workshop on East Canada Offshore Exploration

Conference

Conference1st EAGE Workshop on East Canada Offshore Exploration
CityVirtual, Online
Period15/11/2117/11/21

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