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- Volume 12, Issue 5, 1994
First Break - Volume 12, Issue 5, 1994
Volume 12, Issue 5, 1994
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Analysis of fractures yields improved gas production from Zechstein carbonates, Hewett Field, UKCS
More LessThe Hewett Field complex, discovered twenty seven years ago, is located in the south-west of the Southern North Sea Basin (United Kingdom sector). Gas is currently being produced from four separate reservoirs: Upper and Lower Bunter sandstones as well as Rotliegendes sandstones and Zechstein dolomites (Fig. 1). Figure 2 is a generalized stratigraphic section for the south-west part of the basin. The Zechstein is a sequence of carbonate and evaporitic rocks of late Permian age, which underlies a considerable area of north-west Europe. In places, five cycles can be identified: Z1 to Z5. A typical cycle reflects the influence of increasing salinity through evaporation following an initial marine incursion.
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Efficient 3D seismic surveys in a jungle environment
Authors M.F. Bee, J.M. Bearden, E.F. Herkenhoff, H. Supiyanto and B. KoestoerThe 3D activity of Caltex Pacific Indonesia (CPI) is aimed at developing existing production fields on land in the jungle/swarnpy environment of Central Sumatra, Indonesia (Fig. I). Because of the difficult access conditions, CPI seismic crews are fully portable and dynamite is the only source used. Receivers can either be geophones or hydrophones depending on near-surface conditions.
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Volumes & issues
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Volume 43 (2025)
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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)
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