Reservoir screening using Iatroscan TLC-FID and identification of palaeo-oil zones, oil-water contacts, tar-mats and residual oil saturations in the Froy and Rind petroleum accumulations

被引:15
作者
Bhullar, AG
Karlsen, DA
Lacharpagne, JC
Holm, K
机构
[1] Univ Oslo, Dept Geol, Petr Geochem Program, N-0316 Oslo, Norway
[2] ELF Aquitaine Prod, F-64018 Pau, France
[3] Elf Petr Norway Asa, N-4001 Stavanger, Norway
关键词
reservoir geochemistry; Iatroscan TLC-FID; oil-water contact; residual oil saturation; tar-mats; Froy field and Rind discovery; North Sea;
D O I
10.1016/S0920-4105(99)00007-8
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Combined thin layer chromatography (TLC) and flame ionization detection (FID) of the Iatroscan TLC-FID instrument were used for geochemical screening of 600 core samples from the Elf-operated Froy Field and Rind Discovery on the Norwegian Continental Shelf. The results allowed a pseudo 3-D characterization of the bitumen distribution in the reservoirs. Calibration of the data to well log-defined oil saturations allowed much more detailed recognition of variation in residual oil saturations (ROS) and helped in determining present and palaeo-oil-water contacts (OWCs). The quantification of bitumen amount and composition between different reservoir units was used to define OWCs. Palaeo-oil zones within present condensate and water zones were identified using an empirical approach to measure bitumen content and composition from live oil zones, condensate zones and dry gas zones, respectively. In this way, the Iatroscan TLC-FID data can be used to reconstruct elements of the filling history of the reservoirs. The application of this technique for identifying compartments, barriers for fluid flow and tar mats is also demonstrated. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:41 / 63
页数:23
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