An Overview of Downhole Electrical Machines and their Benefits

– New technology to the deeper offshore areas and to the exploitation of deep offshore reservesand deep offshore reserves must offer safe, economically viable and ecologically acceptable solutions toincrease oil and gas recoveries. The use of electricity in downhole applications has shown to be beneficial.This article discusses the advantages of electrical machines in downhole applications that are alreadyavailable or developing. For downhole applications, permanent magnet devices are mostly used.