This paper describes a dynamic reservoir modeling study and recommendations on the field implementation of intelligent well technology (IWT) on a mature North Sea field to quantify the benefit of using the technology for the redevelopment of the field. The study examines the impact of applying intelligent well technology to multiple production and injection wells to accelerate production, reduce well count, extend production plateau period and reduce well intervention.
The field is located in the North Sea with characteristics similar to the Brent field. Major hydrocarbon accumulation exists in four horizons. The field is mature with over 10 years of historical production data from waterflood operations.
The paper discusses issues relating to identification of the best application of IWT in the field and quantification of the potential gains from such application when compared to conventional completion systems. These include assessing the capability of the IWT to maximize oil production while managing water breakthrough and to commingle production from multiple sands while minimizing impact on reserves.
The study highlights potential pre- and post- installation issues with regard to the recommended intelligent well systems. This includes challenges and issues related to integration with existing facilities, well installation, crew preparation, system reliability, etc. The paper also discusses post installation well controls and practical guidance on measuring the predicted benefits from using the IWT.
The paper provides an overview of the application of intelligent well technology on a mature offshore field. The study estimated potential increase in oil recovery factor ranging from 0.48% to 6.1% of STOIIP over field life.