Abstract

This paper shares the results from the first successful deployment of a real-time, multiphase inflow profiling technology applied to BP operated Clair Ridge asset. Uncertainty around distribution and the dynamic behaviour of the fractured reservoir required the deployment of Distributed Fibre Optic Sensing (DFOS) capabilities as part of the well completions across a selection of the well stock, to enable in-depth real-time flow surveillance and maximize recovery from the field. Unlike conventional wireline conveyed sensors and logs that provide static measurements of flow conditions, the DFO data will be used to provide a more comprehensive, dynamic inflow distribution across multizone completion uniquely including flow in the annular space behind blank sections.

This paper summarizes key findings from the first deployment of a new real-time technology solution that employs novel signal processing techniques using the DFO data as key sensor inputs to detect relative inflow rates of different fluid types along the wellbore during production. The solution presents inflow logs for each fluid phase in near real-time through proprietary streaming analytics capabilities embedded in a cloud-based software solution. This facilitates 24×7, real-time flow surveillance across wells equipped with fibre in the field. This paper also presents early results from the use of the technology on the first platform drilled production well and discusses how these real-time insights have been effectively applied to provide significant business value, including but not limited to new well start-up optimization, well management and zonal fluid inflow allocation. The paper also detail the use of the technology for water inflow detection and quantification and discusses the implementation of drawdown optimization strategies based on the insight to control water inflow that have already resulted in significant production benefits.

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