Assessment of Fluid Contacts and Compartmentalization in Sandstone Reservoirs Using Fluid Inclusions: An Example from the Magnus Oil Field, North Sea¹

S. A. Barclay,² R. H. Worden,² J. Parnell,³ D. L. Hall,⁴ and S. M. Sterner⁴

©Copyright 2000. The American Association of Petroleum Geologists. All rights reserved.
¹Manuscript received April 30, 1998; revised manuscript received August 17, 1999; final acceptance October 15, 1999.
²School of Geosciences, The Queen's University, Belfast, BT7 1NN, United Kingdom; e-mail: [email protected]
³Fluid Inclusion Technologies Inc., 2217 North Yellowood Avenue, Broken Arrow, Oklahoma 74012
⁴Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, AB24 3UE, United Kingdom.

ABSTRACT

Location of an oil-water contact is crucial for estimating reserves and for designing production strategies. Identifying hydrodynamic barriers or baffles is also important for optimizing both recovery and flow rates. In some oil fields, identifying fluid contacts and barriers is not always possible using conventional wireline and formation testing methods.