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Integrated whole-rock trace element geochemistry and heavy mineral chemistry studies; aids to the correlation of continental red-bed reservoirs in the Beryl Field, UK North Sea

J. Preston, A. Hartley, M. Hole, S. Buck, J. Bond, M. Mange and J. Still
Integrated whole-rock trace element geochemistry and heavy mineral chemistry studies; aids to the correlation of continental red-bed reservoirs in the Beryl Field, UK North Sea
Petroleum Geoscience (February 1998) 4 (1): 7-16

Abstract

Correlating continental red-bed successions in the sub-surface is a common problem for the hydrocarbon industry. These successions are typically barren of fauna and often monotonous, leading to non-diagnostic wire-line log signatures. A high-resolution, high precision study of detrital garnet chemistry within Triassic reservoir sandstones from the Beryl Field of the North Sea failed to subdivide the sequence satisfactorily. However, the whole-rock concentrations of immobile trace elements such as Zr, Nb and Cr can be shown to be controlled primarily by the abundances of the heavy minerals zircon, rutile and chrome-spinel, respectively. The chemistry of detrital rutile and chrome spinel varies widely within any one sample, implying that the whole-rock concentrations of Nb and Cr are also a function of the chemistry of these heavy minerals. Having calibrated a type well with a detailed mineralogical and geochemical study, it was possible to correlate between wells using whole-rock geochemical cross-plots.


ISSN: 1354-0793
EISSN: 2041-496X
Serial Title: Petroleum Geoscience
Serial Volume: 4
Serial Issue: 1
Title: Integrated whole-rock trace element geochemistry and heavy mineral chemistry studies; aids to the correlation of continental red-bed reservoirs in the Beryl Field, UK North Sea
Affiliation: University of Aberdeen, Department of Geology & Petroleum Geology, Aberdeen, United Kingdom
Pages: 7-16
Published: 199802
Text Language: English
Publisher: Geological Society Publishing House, London, United Kingdom
References: 28
Accession Number: 1999-006179
Categories: Economic geology, geology of energy sources
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map, strat. col.
N51°00'00" - N61°10'00", W04°00'00" - E11°00'00"
N50°00'00" - N61°00'00", W08°00'00" - E02°00'00"
Secondary Affiliation: Mobil North Sea, GBR, United KingdomUniversity of Oxford, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 199903
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