High resolution geochemical and petrographical correlation of deep marine Paleocene sandstones from the Foinaven Field, West of Shetland

A. Hutchison, Adrian John Hartley, Malcolm John Hole, E. Whear, J. Preston

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Cores from three wells in the Upper Palaeocene deep-marine reservoir interval of the Foinaven Field, West of Shetland have been analysed using trace element geochemistry and petrography. The 60 m thick turbidite-dominated succession is restricted to the T34 biozone and comprises a series of seismically defined channel and overbank deposits. Petrographic and trace element geochemical data indicate that wells 204/24a-3 and 204/25b-5 have strong similarities and that strata in the remaining well (204/24a-7) have distinctly different signatures. Of the two related wells, 204/25b-5 is dominated by a thick amalgamated sandstone succession, 204/24a-3 by more thinly bedded and finer grained sandstones considered to represent channel and associated overbank deposits respectively. Similarities in geochemical and petrographic data allow division of the biozone in the two related wells into four principal correlation zones with two additional sub-zones. The study has established a high resolution correlation scheme and constrained correlation lengths for reservoir and non-reservoir facies in a deep marine depositional system.

Original languageEnglish
Pages (from-to)123-129
Number of pages6
JournalPetroleum Geoscience
Volume7
Issue number2
Publication statusPublished - 2001

Keywords

  • trace analysis (chemical)
  • geochemical data
  • tertiary period
  • reservoir
  • turbidite
  • correlation
  • NORTH-SEA

Cite this

@article{ee9acd5530bd4f069da6e2cb3cc07f22,
title = "High resolution geochemical and petrographical correlation of deep marine Paleocene sandstones from the Foinaven Field, West of Shetland",
abstract = "Cores from three wells in the Upper Palaeocene deep-marine reservoir interval of the Foinaven Field, West of Shetland have been analysed using trace element geochemistry and petrography. The 60 m thick turbidite-dominated succession is restricted to the T34 biozone and comprises a series of seismically defined channel and overbank deposits. Petrographic and trace element geochemical data indicate that wells 204/24a-3 and 204/25b-5 have strong similarities and that strata in the remaining well (204/24a-7) have distinctly different signatures. Of the two related wells, 204/25b-5 is dominated by a thick amalgamated sandstone succession, 204/24a-3 by more thinly bedded and finer grained sandstones considered to represent channel and associated overbank deposits respectively. Similarities in geochemical and petrographic data allow division of the biozone in the two related wells into four principal correlation zones with two additional sub-zones. The study has established a high resolution correlation scheme and constrained correlation lengths for reservoir and non-reservoir facies in a deep marine depositional system.",
keywords = "trace analysis (chemical), geochemical data, tertiary period, reservoir, turbidite, correlation, NORTH-SEA",
author = "A. Hutchison and Hartley, {Adrian John} and Hole, {Malcolm John} and E. Whear and J. Preston",
year = "2001",
language = "English",
volume = "7",
pages = "123--129",
journal = "Petroleum Geoscience",
issn = "1354-0793",
publisher = "Geological Society of London",
number = "2",

}

TY - JOUR

T1 - High resolution geochemical and petrographical correlation of deep marine Paleocene sandstones from the Foinaven Field, West of Shetland

AU - Hutchison, A.

AU - Hartley, Adrian John

AU - Hole, Malcolm John

AU - Whear, E.

AU - Preston, J.

PY - 2001

Y1 - 2001

N2 - Cores from three wells in the Upper Palaeocene deep-marine reservoir interval of the Foinaven Field, West of Shetland have been analysed using trace element geochemistry and petrography. The 60 m thick turbidite-dominated succession is restricted to the T34 biozone and comprises a series of seismically defined channel and overbank deposits. Petrographic and trace element geochemical data indicate that wells 204/24a-3 and 204/25b-5 have strong similarities and that strata in the remaining well (204/24a-7) have distinctly different signatures. Of the two related wells, 204/25b-5 is dominated by a thick amalgamated sandstone succession, 204/24a-3 by more thinly bedded and finer grained sandstones considered to represent channel and associated overbank deposits respectively. Similarities in geochemical and petrographic data allow division of the biozone in the two related wells into four principal correlation zones with two additional sub-zones. The study has established a high resolution correlation scheme and constrained correlation lengths for reservoir and non-reservoir facies in a deep marine depositional system.

AB - Cores from three wells in the Upper Palaeocene deep-marine reservoir interval of the Foinaven Field, West of Shetland have been analysed using trace element geochemistry and petrography. The 60 m thick turbidite-dominated succession is restricted to the T34 biozone and comprises a series of seismically defined channel and overbank deposits. Petrographic and trace element geochemical data indicate that wells 204/24a-3 and 204/25b-5 have strong similarities and that strata in the remaining well (204/24a-7) have distinctly different signatures. Of the two related wells, 204/25b-5 is dominated by a thick amalgamated sandstone succession, 204/24a-3 by more thinly bedded and finer grained sandstones considered to represent channel and associated overbank deposits respectively. Similarities in geochemical and petrographic data allow division of the biozone in the two related wells into four principal correlation zones with two additional sub-zones. The study has established a high resolution correlation scheme and constrained correlation lengths for reservoir and non-reservoir facies in a deep marine depositional system.

KW - trace analysis (chemical)

KW - geochemical data

KW - tertiary period

KW - reservoir

KW - turbidite

KW - correlation

KW - NORTH-SEA

M3 - Article

VL - 7

SP - 123

EP - 129

JO - Petroleum Geoscience

JF - Petroleum Geoscience

SN - 1354-0793

IS - 2

ER -