自適應鉆井黏滑振動井下控制工具設計方法

打開文本圖片集

Zhou Bo，Li Bing，Wang Lincong，et al.Design method of adaptive drilling stick-slip vibration downhole control tool[J].ChinaPetroleumMachinery，2025，53（6）：38-43.

Design Method of Adaptive Drilling Stick-Slip Vibration Downhole Control Tool

Zhou Bo1LiBing1Wang Lincong2Zhang Fucheng1Yu Jing1Si Boyu1

CNPCEngineringTechnologyR&DCompanyLimited;2.ColegeofPetroleumEngineering，China UniversityofPetroleu（1

Abstract： There are few reports on the design method for downhole stick-slip vibration adaptive prevention and control tool，andthe keyparameter design modelsand methodsare not yet perfect.Inthis paper，based on the coupling equationof axial and circumferential vibration dynamicsof dril string system，the dynamic time-domain characteristicsof torqueonbitand weightonbit inthe processofdrillingstick-slip vibration were simulatedand characterized.The principleand methodof actively adjusting thecuting depthofbit andreleasing thetorque ofdrillstring system were proposed.A scheme of downhole adaptive stick-slip vibration control tool was innovatively formed.A design methodforcompositedisc spring system，efective stroke andultimate loadof theadaptive stick-slip vibration controltol wasbuilt，andtesting verification was cariedout.Theresearch results show thatthedownholecontrol toolscheme of real-time adjustmentof weightand torque on bit avoids theshortcomings of the method ofcontrolling stick-slip vibration byadjusting drilling parameters on the ground;and theaccuracy of the design method for the composite disc spring system， effective stroke and ultimate load of the tool is more than 92. 1% . The research conclusions provide atheoretical reference forthedevelopment ofdrilling stick-slip vibration downholecontrol tool.

Keywords：drilling stick-slip vibration； control tool; dynamic analysis model;disc spring system

0 引言

鉆井黏滑振動是鉆頭切削破巖過程產(chǎn)生的低頻高振幅自激振蕩現(xiàn)象，以鉆柱扭曲和鉆頭旋轉速度的周期性寬幅變化為特征。（剩余10242字）