Application of Geochemical Fingerprinting to Understand Reservoir Architecture and Subsequent Reservoir Management
2015
In a nutshell, two different fluid fingerprints (i.e.” Sand-1A” and “Sand-1 Main”) which did not demonstrate formation pressure variations were identified through geochemical fingerprinting analysis. This corroborates with the heavy mineral results that indicate the presence of two sediment delivery input points which have contributed to the two different depositional systems. Over the course of two years, production allocation results show a decrease of Sand-1-A production from 60% to 30%. Fundamentally, the GF sampling and data collection is an economical yet effective method to calculate production allocation for deepwater subsea wells, and when integrated with other production/surveillance information, will prove useful for monitoring the effectiveness of water and gas injection for pressure maintenance as well as Phase II development of the field.
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