1887

Abstract

Summary

Goliat is the first oil producing field in the Barents Sea (Norway) and it consists of multiple stacked Middle to Late Triassic siliciclastic reservoir levels containing oil and a limited gas cap. The two main developed reservoirs are both characterized by complex compartmentalization and heterogeneous distribution of the fluvial-deltaic sands distributed in several stacked sequences. Due to these complexities, the field development strategy called for the drilling of several horizontal production wells to ensure an effective drainage of the reservoirs. The use of the most advanced drilling and logging technologies, with regards to well placement, proved to be very effective to successfully land the wells and optimize the sand exposure and for the integration of the ultra-deep EM inversion results in the reservoir models. The reservoir mapping capabilities of the deep EM technology was applied in several situations in both Goliat reservoirs and provided valuable information for understanding, updating and improving the reservoir models: the identification of fluid contacts, different scale faults detection, mapping of reservoir top, internal stratigraphy and sand bodies geometries proved to be vital information to overcome the difficulty in drilling such complex reservoirs and meet the success criteria of the development wells.

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/content/papers/10.3997/2214-4609.201803128
2018-11-05
2024-03-28
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