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- Volume 39, Issue 4, 2021
First Break - Volume 39, Issue 4, 2021
Volume 39, Issue 4, 2021
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The North Sea through the energy transition
AbstractThe energy transition has started. While traditional petroleum exploration and production will become increasingly difficult, the offshore region around the UK, Norway, Denmark and the Netherlands offers many opportunities for companies prepared to embrace low-carbon energy and related activities. We present 19 ideas for new sustainable business. If climate commitments are to be met, the scale of the transformation will be immense. Assuming the economics of floating technologies improve, we envisage the majority of the North Sea (>100,000km2) to be repurposed for renewable power and related activities. In order to fully unlock the future value in wind, solar and ocean energies, as well as in subsurface storage, companies and governments will need to work together to create an integrated energy system.
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Offshore field trial application of low-frequency passive microseismic technology in the North Sea for exploration, appraisal and development of hydrocarbon deposits
AbstractThe recent downturn in the industry has led to a focus on maximizing economic recovery and low-frequency seismic sounding (LFS) technology has the potential to delineate oil and gas reservoirs to derisk drilling decisions and shorten the appraisal and development timeframe. The change in the low-frequency range of natural microseismic background noise is due to the mechanics of fluid saturated, fractured and porous media, with oil and gas reservoirs having a high-velocity dispersion and attenuation at low frequencies.
Here, we demonstrate the offshore deployment, acquisition and applicability of LFS to delineate hydrocarbon deposits in the North Sea. The spectra of the dry and oil-bearing sections of the surveyed area is observed in the frequency range of 0.6–1.9 Hz, while noise interference in the form of Scholte waves is also observed in the low-frequency range of 2Hz. We developed new filtering procedures to remove interference and exclusively select vertically directed P waves from the recorded signal. The result is a map of correlation coefficients which characterize the absence and presence of hydrocarbons as a probability map of hydrocarbon. The offshore trial has confirmed the application of the LFS technology highlighting areas that can be improved to deliver optimal results.
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Volumes & issues
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Volume 42 (2024)
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Volume 41 (2023)
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Volume 40 (2022)
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Volume 39 (2021)
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Volume 38 (2020)
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Volume 37 (2019)
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Volume 36 (2018)
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Volume 35 (2017)
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Volume 34 (2016)
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Volume 33 (2015)
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Volume 32 (2014)
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Volume 31 (2013)
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Volume 30 (2012)
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Volume 29 (2011)
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Volume 28 (2010)
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Volume 27 (2009)
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Volume 26 (2008)
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Volume 25 (2007)
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Volume 24 (2006)
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Volume 23 (2005)
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Volume 22 (2004)
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Volume 21 (2003)
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Volume 20 (2002)
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Volume 19 (2001)
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Volume 18 (2000)
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Volume 17 (1999)
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Volume 16 (1998)
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Volume 15 (1997)
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Volume 14 (1996)
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Volume 13 (1995)
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Volume 12 (1994)
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Volume 11 (1993)
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Volume 10 (1992)
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Volume 9 (1991)
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Volume 8 (1990)
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Volume 7 (1989)
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Volume 6 (1988)
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Volume 5 (1987)
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Volume 4 (1986)
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Volume 3 (1985)
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Volume 2 (1984)
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Volume 1 (1983)