Quick Search:    advanced search

GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help

Petroleum Geoscience

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Morris, J. Articles by Maxwell, G. Search for Related Content GeoRef GeoRef Citation

Controls on facies architecture in the Brent Group, Strathspey Field, UK North Sea: implications for reservoir characterization

¹ Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK (e-mail: g.j.hampson@ic.ac. uk)
² Texaco North Sea UK Co., Langlands House, Huntly Street, Aberdeen AB10 1SH, UK (present address: ChevronTexaco, 4800 Fournace Place, Bellaire, Texas, TX 77401-2324, USA)

The Brent Group reservoir in the Strathspey Field, UK North Sea comprises shallow marine, marginal marine and non-marine strata of variable reservoir character. Controls on the distribution, geometry, connectivity and orientation of sandbodies within the reservoir have been assessed via the application of high-resolution sequence stratigraphic methods to an integrated dataset comprising core, wireline log, 3D seismic and reservoir production data. The base of the Brent Group is a major sequence boundary overlain by weakly wave-influenced, shallow marine sandstones of the lowstand-to-transgressive Broom Formation. The overlying Rannoch Formation represents highstand progradation of a wave-dominated shoreface, which is truncated across a sequence boundary by a near-field-wide fluvio-estuarine complex (Etive Formation). Marginal-marine strata of the overlying Ness Formation are divided into field-wide units bounded by mudstones that form vertical pressure barriers. Major, oil-bearing fluvial sandbodies overlie sequence boundaries and the widths and orientations of two such sandbodiesare controlled by syn-depositional, intra-reservoir faults. The distribution of these sandbodies is therefore predictable. The Ness Formation is truncated by a major sequence boundary overlain by stacked, tidally influenced, shallow marine sandstones of the Tarbert Formation. The resulting facies architecture has been successfully used to refine reservoir models, identify bypassed oil and target infill wells.

KEYWORDS: facies architecture, reservoir characterization, Brent Group, Strathspey Field

This article has been cited by other articles:

				S. MATTHEWS, A. D. THURLOW, F. J. AITKEN, S. GOWLAND, P. D. JONES, G. J. COLVILLE, C. I. ROBINSON, and A. M. TAYLOR A late life opportunity: using a multidisciplinary approach to unlock reserves in the Rannoch Formation, Ninian Field Geological Society, London, Petroleum Geology Conference series, January 1, 2005; 6(0): 495 - 510. [Abstract] [PDF]