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- W2348099623 abstract "The change of polished rod torque rotate speed axial force is aroused by various failure in the process of screw pump oil extraction,changeable law of these numerical value on the driving head is detected on real time.It is important to oil extraction system operating condition diagnoses,sucker rod string intension check,oil well parameter and oil extraction arts and crafts and so on.This paper expounds operating principle and composing of ground drive screw pump frequency conversion automatism timing closed loop control system,develops non-osculate torque rotate speed axial force sensor,and progresses spot experimentation in 56 well.The application results indicate that it achieves increasing production and energy saving,and enhances system efficiency and so on." @default.
- W2348099623 created "2016-06-24" @default.
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- W2348099623 date "2007-01-01" @default.
- W2348099623 modified "2023-09-25" @default.
- W2348099623 title "The Study and Application of Screw Pump Variable Frequency Conversion Technology" @default.
- W2348099623 hasPublicationYear "2007" @default.
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