Research on control performance of mechanical automatic vertical drilling tool stabilization platform under stick-slip vibration
LI Ran-ran1,2, ZHANG Kai1,2, CHAI Lin1,2, ZHANG Long1,2, LIU Bao-lin1,2, LI Guo-min1,2
1.College of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China 2.Key Laboratory of Deep Geological Drilling Technology, Ministry of Land and Resources, Beijing 100083, China
Abstract Mechanical automatic vertical drilling tools have the advantages of high temperature resistance, low cost and wide application range, and they have broad application prospects in the field of deep resource exploration. However, the pure mechanical structure causes their deviation correction accuracy to be easily disturbed by the external environment. In order to further improve the deviation correction accuracy of the mechanical automatic vertical drilling tool, the control performance of the drilling tool stabilization platform under different intensities of stick-slip vibration was studied. Firstly, through constructing a mathematical analysis model for the control performance of the drilling tool stabilization platform, the factors influencing the control performance of the stabilization platform were summarized. Then, the multi-rigid body dynamics simulation model of the drilling tool stabilization platform under the stick-slip vibration was established by using the ADAMS (automatic dynamic analysis of mechanical systems) software, and the control precision and control efficiency of the stabilization platform under different influencing factors and vibration intensities were analyzed. Finally, the recommended values of influencing factors when the control performance of the stabilization platform was optimal were obtained through the comprehensive analysis. The analysis results showed that the PDC (polycrystalline diamond compact) radius had the greatest influence on the control accuracy of the drilling tool stabilization platform, while the filling density had a minimal influence on that; the mild and moderate stick-slip vibration had a little effect on the control efficiency of the drilling tool stabilization platform, and the severe stick-slip vibration could greatly improve the control efficiency, but the stick-slip vibration intensity had almost no effect on the control accuracy. The research results can provide reference for the optimization design of mechanical automatic vertical drilling tools under the stick-slip vibration.
Received: 25 February 2021
Published: 28 December 2021
LI Ran-ran, ZHANG Kai, CHAI Lin, ZHANG Long, LIU Bao-lin, LI Guo-min. Research on control performance of mechanical automatic vertical drilling tool stabilization platform under stick-slip vibration. Chinese Journal of Engineering Design, 2021, 28(6): 746-757.