Multi-well Data base techniques greatly facilitate the storage, retrieval and manipulation of well log data.

This paper reviews a multi-well approach to the analysis of corrosion logging measurements across 50 wells in the Dukhan field.

The objective of the study was to understand corrosion phenomena throughout the field and to determine the relationships between corrosion in different wells.

Multi-well techniques to optimize the normalisation of logging tool responses to metal losses are described.

Dukhan field production/injection and corrosion problem history is reviewed followed by a description of the basic Corrosion Evaluation logging tool measurements and their incorporation into the multi-well data base.

Results, both field wide and selected individual well, are presented and discussed. These results indicate that the most significant corrosive mechanism is inner wall erosion in the dump flood injection wells. However mild, outer wall metal loss is observed, in some cases, across the un-perforated aquifers suggesting the possibility of other corrosion phenomena which should be monitored in future casing corrosion evaluation programs.

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