... The key difference between the IM and PMM is that the magnetic field is always ON with PMM, making it a generator of electricityif the shaft rotates at all in either direction. In a well (oil, gas, water, utility) the shaft can rotate from well fluids moving up (kick) or down (dump) the tubing...

... In this paper, we will present an elegant solution to the significant issue of PMM's compatibility with existing variable frequency drives (VFD) and their need for special provisions to operate at the end of long cables without a physical rotor position sensor. The traditional scalar control...

... motors versus the required output and length of the UHPD PMM. Chart 1 The 37-ft, 4.5-in., single-section UHPD PMM outputs 1,150 to 1,200 hp. Tandem and triple-stacked 4.5-in. induction motors are much longer and cannot deliver an equivalent horsepower. Engineering the UHPD PMM The power...

... Abstract Permanent magnet motors (PMMs) have been used in electrical submersible pump (ESP) applications worldwide, but the oil and gas industry still has questions about the value of the technology in terms of power savings; return on investment (ROI); and evaluation of power consumption...

... criteria deployment ttesp ttesp installation PMM replication Implementation execution ttesp-cd application installation information ttesp system operation requirement guideline screening criteria Introduction/Background TTESP-CD system comprises several technology innovations...

... Abstract The induction motor has dominated the global ESP market for decades; however permanent magnet motors (PMM) are gaining acceptance for use in artificial lift. Some PMM vendors have made claims of 20% - 30% reduction in electric operating costs, improved efficiency, and wider...

... completion Completion Installation and Operations PMM directional plan pump ESP system society of petroleum engineers reservoir installation slickline unit artificial lift system production enhancement retrievable esp assembly production downtime operator operation Introduction During...

... technology due to its high gas/oil ratio and unusual production profile. Multiple conventional ESP installations, set above the perforations, using induction motors (IM) failed shortly after installation and were unable to maintain continuous production. A permanent magnet motor (PMM) ESP system...