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The Morag Field, Block 16/29a, UK North Sea

Gluyas, J.G.; Słowakiewicz, M.; Tucker, M.E.; Gutteridge, P.

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M. Słowakiewicz

M.E. Tucker

P. Gutteridge


The Morag Field is a small oilfield underlying the Maureen Field in UK Block 16/29a. Black oil is trapped within Upper Permian, Morag Member, vuggy and fractured dolomite rafts between 9300 and 10 600 ft true vertical depth subsea. The dolomite reservoir occurs at the top of a Zechstein salt dome. Morag was discovered in 1979 by well 16/29a-A1, the first platform well drilled for the overlying Maureen Field with its Paleocene sandstone reservoir. Morag was produced via a single well (16/29a-A1) between 1991 and 1994. Three more platform wells were drilled into the Permian interval prior to Maureen Field start up but only one penetrated oil-bearing dolomite (16/29a-A2). An additional well (16/29a–A23Z) was drilled into the Morag Field in 1993. The well encountered Morag Member at virgin pressure and tested oil at high flow rate but then the well failed due to mechanical problems. Oil in place was calculated to be about 24 MMbbl in four independent fault blocks. Ultimately 16/29a-A1 delivered 2.6 MMbbl from a fault block calculated to have held 6.7 MMbbl stock tank oil initially in place.


Gluyas, J., Słowakiewicz, M., Tucker, M., & Gutteridge, P. (2020). The Morag Field, Block 16/29a, UK North Sea. Memoirs, 52, 897-905.

Journal Article Type Article
Acceptance Date Mar 3, 2019
Online Publication Date Oct 30, 2020
Publication Date 2020
Deposit Date Mar 7, 2019
Publicly Available Date Oct 30, 2021
Journal Memoirs
Print ISSN 0435-4052
Electronic ISSN 2041-4722
Publisher The Geological Society
Peer Reviewed Peer Reviewed
Volume 52
Pages 897-905


Accepted Journal Article (2.2 Mb)

Copyright Statement
Gluyas, J.G., Słowakiewicz, M., Tucker, M.E. & Gutteridge, P. (2020). The Morag Field, Block 16/29a, UK North Sea. Geological Society Memoirs 52: 897-905. © Geological Society of London 2020.

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