煤田地质与勘探2025，Vol.53Issue(2)：233-242,10.DOI:10.12363/issn.1001-1986.24.09.0581
万米钻机全液压顶驱平衡装置液压回路设计与仿真
Design and simulations of a balancing device with a hydraulic circuit for a fully hydraulic top drive drilling system for a drilling rig capable of 10 000-m-deep drilling
摘要
Abstract
[Objective]The balancing device for a fully hydraulic top drive drilling system(TDDS),an important part of a drilling rig capable of 10 000-m-deep drilling,is designed to dynamically and accurately regulate the axial load in the screwing and unscrewing processes.This helps protect the threads of drill rod connectors from damage,thereby ensur-ing the stability and safety of drilling operations.[Methods]This study designed a balancing device with a hydraulic cir-cuit for the SP.TD-01A fully hydraulic TDDS,aiming to achieve the balancing and bouncing functions required during the application of the TDDS.First,this study determined the structure and principal operating parameters of the hydraul-ic circuit of the balancing device for the TDDS.Then,using the Matlab/Simulink/SimScape simulation platform,this study constructed dynamic simulation models for the hydraulic circuit and for the screwing and unscrewing mechanisms of the spindle and drill rod of the TDDS.Using these models,this study simulated and tested the axial load change and displacement characteristics of the spindle protection connectors of the TDDS in the screwing and unscrewing processes,as well as the flow and intensity of pressure characteristics and energy consumption indicators of the hydraulic circuit.[Results and Conclusions]The results indicate that the balancing device designed for the TDDS demonstrates a reason-able functional structure and high dynamic regulation performance.At a spindle speed of 10 r/min,screwing and pretightening were completed within 24 s,and unscrewing and releasing consumed 26 s.During the screwing operation,the pressure on the threaded surface reached a maximum of 11.2 kN,stabilizing at around 550 N.During the unscrewing operation,the pressure on the threaded surface exhibited a maximum of 3.5 kN and an average of about 1.2 kN.After the unscrewing operation,the TDDS bounced off the drill string for a distance of 76.5 mm.The designed balancing device for the TDDS and its hydraulic circuit were applied to the SP.TD-01A fully hydraulic TDDS,yielding satisfactory ap-plication results and playing a vital role in protecting the threads of drill rod connectors.The spindle protection connect-ors of the TDDS were replaced only four times for safety reasons during the drilling of well SK-2.This study can serve as a guide for the further research and development of TDDSs.关键词
顶驱平衡装置/液压系统/拧卸扣作业/动态仿真分析/Matlab/Simulink/SimScape仿真平台Key words
balancing device of a top drive drilling system TDDS/hydraulic system/screwing-unscrewing operations/dynamic simulation analysis/Matlab/Simulink/SimScape Simulation Platform分类
矿业与冶金引用本文复制引用
罗朝椿,王清岩,范黎明,李昊轩,钟蔚岭,郭乃铭..万米钻机全液压顶驱平衡装置液压回路设计与仿真[J].煤田地质与勘探,2025,53(2):233-242,10.基金项目
国家深部探测技术与实验研究专项项目(SinoProbe09) （SinoProbe09）
