The speed control research on rotary valve driven by micromotor in MWD

  • Lingtan Zhang
  • Yue ShenEmail author
  • Gaixing Hu
  • Lingzhi Wei
  • Jia Jia
  • Limin Sheng
Technical Paper


The rotary valve speed control, extremely affected by nonlinear dependence of rotary valve load torque on rotation angle, affects the generation of drilling fluid pressure PSK signal and its quality. Based on load torque calculation model, the load torque feed forward compensation is used in linearized correction of rotation speed control system to enable the motor voltage to vary according to the calculation model. Additionally, the calculation model is also used in compensating the influence of serious nonlinearity in rotary valve load torque on rotation speed control. By means of closed-loop proportional-integral-derivative (PID) control which is formed by negative feedback of speed and the PID parameter values determination rule which is created by attenuating control of transient component in step response of rotary valve speed, the rapid servo control of rotary valve speed is realized. Simulink Simulation indicates that the closed-loop speed control system of rotary valve is able to track the change of control voltage pulse quickly and strongly suppress the interference influences from flow measurement error and load torque calculation model deviation.



This work was supported by the National Nature Science Foundation of China (Grant Number 51274236).

Author contributions

LZ and YS have performed conceptualization, methodology, investigation and have written the original draft. YS have performed funding acquisition. JJ and LW have written the software and prepared resources. All the authors have contributed to data curation, validation, formal analysis and writing-review the final draft.

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.


  1. Cheng Y, Wang Z, Lu Q, Qu F, Wang C (2014) Hydraulic torque analysis on oscillating mud pulse for MWD/LWD. Acta Petrol Sin 35:385–389Google Scholar
  2. David M (1989) Sinusoidal pressure pulse generator for measurement while drilling tools. US PatentGoogle Scholar
  3. Grosso DS, Raynal JC, Rader D (1983) Report on MWD experimental downhole sensors. J Petrol Technol 35:899–904. CrossRefGoogle Scholar
  4. Gu Y (1998) The coefficient of friction of the mechanical seal fluid. Machinery 26:6Google Scholar
  5. Hutin R, Tennent RW, Kashikar SV (2001) New mud pulse telemetry techniques for deepwater applications and improved real-time data capabilities. Paper presented at the SPE/IADC Drilling Conference, Amsterdam, Netherlands, 1 Jan 2001Google Scholar
  6. Jia P, Fang J, Su Y-N, Li L (2010) Analysis on rotary valve hydraulic torque of drilling fluid continuous wave signal generator. J China Univ Petrol (Edn Nat Sci) 34:99–104Google Scholar
  7. Klotz C, Wassermann I, Hahn D (2008) Highly flexible mud-pulse telemetry: a new system. Paper presented at the SPE Indian Oil and Gas Technical Conference and Exhibition, Mumbai, India, 1 Jan 2008Google Scholar
  8. Lai L-T, Young S-J, Liu Y-H, Lin Z-D, Chang S-J (2015) UV enhanced field emission properties of zno nanosheets with different naoh concentration. IEEE Trans Nanotechnol 14:776–781. CrossRefGoogle Scholar
  9. Li S (1980) Engineering fluid mechanics. China Machine Press, BeijingGoogle Scholar
  10. Li Z, Zhang L, Fang J (2003) Analysis of rotating performance of rotor on submersible electromotor of ESP. China Petrol Mach 31:14–16, 23Google Scholar
  11. Li Q, Peng Y, Zhang S, Liu Z (2007) Study on signal transmission technique in rotary steering drilling. Acta Petrol Sin 28:108–111Google Scholar
  12. Martin CA, Philo RM, Decker DP, Burgess TM (1994) Innovative advances in MWD. Paper presented at the SPE/IADC Drilling Conference, Dallas, Texas, 1 Jan 1994Google Scholar
  13. Monroe SP (1990) Applying digital data-encoding techniques to mud pulse telemetry. Paper presented at the Petroleum Computer Conference, Denver, Colorado, 1 Jan 1990Google Scholar
  14. Montaron BA, Hache JMD, Voisin B (1993) Improvements in MWD telemetry: “The Right Data at the Right Time”. Paper presented at the SPE Asia Pacific Oil and Gas Conference, Singapore, 1 Jan 1993Google Scholar
  15. Moriarty KA (2001) Pressure pulse generator for measurement-while-drilling systems which produces high signal strength and exhibits high resistance to jamming. US PatentGoogle Scholar
  16. Shen Y, Su Y, Li G, Li L, Tian S (2009) Numerical modeling of DPSK pressure signals and their transmission characteristics in mud channels. Petrol Sci 6:266–270. CrossRefGoogle Scholar
  17. Shen Y, Zhu J, Su Y, Sheng L, Li L (2011) Transmission characteristics of the drilling fluid pressure quadrature phase shift keying signal along a directional wellbore. Acta Petrol Sin 32:340–345Google Scholar
  18. Shen Y, Zhang L, Cao L, Sheng L, Li L, Su Y (2016a) The BER analysis on drilling pressure DPSK signals transmission. China Petrol Mach 44:5Google Scholar
  19. Shen Y, Zhang L, Cao L, Sheng L, Li L, Su Y (2016b) Decoding of drilling pressure QPSK signals based on control pulses reconstruction of rotary valve and bit error rate analysis. J China Univ Petrol (Edn Nat Sci) 40:94–100Google Scholar
  20. Wang Z, Xiao J, Jian Z (2012) Waterpower specialty study of the rotor on rotary valve mud pulser. Oil Field Eq 41:3Google Scholar
  21. Wu D (1980) Signal and linear network analysis (part 2). Higher Education Press, BeijingGoogle Scholar
  22. Young S-J, Lin Z-D (2017) High on/off ratio field-effect transistor based on semiconducting single-walled carbon nanotubes by selective separation. Ecs J Solid State Sci Technol 6:M1–M4. CrossRefGoogle Scholar
  23. Young S-J, Tang W-L (2019) Wireless zinc oxide based pH sensor system. J Electrochem Soc 166:B3047–B3050. CrossRefGoogle Scholar
  24. Young S-J, Yuan K-W (2019) Self-powered ZnO nanorod ultraviolet photodetector integrated with dye-sensitised solar cell. J Electrochem Soc 166:B1034–B1037. CrossRefGoogle Scholar
  25. Young S-J, Liu Y-H, Chien J-T (2018) Improving field electron emission properties of ZnO nanosheets with Ag nanoparticles adsorbed by photochemical method. ACS Omega 3:8135–8140. CrossRefGoogle Scholar
  26. Zhang S (2003) New progress and development direction of modern steering drilling techniques. Acta Petrol Sin 24(82–85):89Google Scholar
  27. Zhang L (2005) Electric drive and speed control system. Central Radio & TV University Press, BeijingGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of ScienceChina University of Petroleum HuadongQingdaoChina
  2. 2.Oil and Gas Technology Research InstituteChangqing Oilfield Company, CNPCXi’anChina
  3. 3.School of Petroleum EngineeringChina University of Petroleum HuadongQingdaoChina
  4. 4.Drilling Technology Research Institute, CNPCBeijingChina

Personalised recommendations