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Surface Hydrocarbon Characterization of Kinsale Head Gas Field, Celtic Sea, Offshore Ireland

By
J. L. Gevirtz
J. L. Gevirtz
InterScience Houston, Texas, U.S.A.
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Published:
January 01, 2002

Abstract

This study was designed to compare and contrast variations in acid-released (“adsorbed”) light-alkane and aromatic hydrocarbons collected on a detailed grid over Kinsale Head gas field, offshore Ireland (Blocks 48/20, 48/25, and 49/16), with those collected on a regional grid that sampled the North Celtic Sea Basin. This study also tests the limits of acid-released-gas methods with respect to bottom conditions, because extremely sandy bottoms characterize the region.

Statistically significant gas-yield differences between samples collected in the Kinsale Head area and those collected on the regional grid show that near-surface samples reflect gas leaked from the reservoir. Fluorescence intensities collected in the Kinsale Head area outline the extent of reservoired gas.

This study clearly demonstrates that acid-released-gas and fluorescence methods can be applied successfully in difficult sampling conditions and can delineate the productive limits and suggest the nature of production within a reservoir. The methods do not necessarily represent reservoir fluid compositions accurately, however.

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Contents

AAPG Studies in Geology

Surface Exploration Case Histories: Applications of Geoschemistry, Magnetics, and Remote Sensing

Dietmar Schumacher
Dietmar Schumacher
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Leonard A. LeSchack
Leonard A. LeSchack
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American Association of Petroleum Geologists
Volume
48
ISBN electronic:
9781629810591
Publication date:
January 01, 2002

GeoRef

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