Flow measurement - specialist NEL has increased the fiscal accuracy of oil flow measurements , by calculating flow numbers in real - time using a differential pressure flow meter . Although around 70 % of the world 's remaining oil reserves are classed are " heavy oil " , its flow is challenging to measure and delivers error and uncertainty that costs approximately $ 1 m per year per meter , according to BP .
Flow measurement R&D specialist NEL has increased the fiscal accuracy of oil flow measurements results by calculating Reynolds numbers in real-time using a differential pressure flow meter. Although around 70% of the world's remaining oil reserves are classed are "heavy oil", its flow is challenging to measure and delivers error and uncertainty that costs approximately $56m per year per meter, according to NEL.