连续波泥浆脉冲发生器转子参数设计及敏感性分析
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摘要
连续波泥浆脉冲发生器传输速率快、精度高,其转子形状对于提高压力波信号质量具有重要意义。为获得理想正弦波形,需要设计合理的转子形状。建立了三角形转子流通面积计算模型,并依据转子设计准则,建立了三角形转子形状优化模型,就优化所得结构参数对最大压降、最小压降及相关系数的影响进行敏感性分析。分析结果表明,转子直边斜率k2对压力波信号影响最显著。为减小结构参数的敏感性,提出在脉冲发生器中设置与定转子并联的旁路结构,并对并联旁路结构进行优化及敏感性分析。分析结果表明,并联旁路结构可以明显减小转子设计参数对压力波信号的影响。
Continuous wave mud pulse generator has high transmission speed and precision,it's rotor shape is of great significance to improve the quality of pressure wave signal.In order to obtain ideal sine wave,we need to design a reasonable shape of the rotor.Triangle rotor circulation area calculation model is established in this paper. Then according to the rotor design criterion,established the triangle rotor shape optimization model,analysisthe sensitivity of the influence of optimizing structure parameterson the maximum pressure drop,minimum pressure drop and the correlation coefficient.The analysis result shows that the rotor straight slope k2 is the most significant influence on stress wave signal.To reduce the sensitivity of the structural parameters,this paper puts forward setting a bypass structure in parallel with stator,then optimize and analysis the sensitivity of the structure. The analysis results show that the parallel bypass structure can significantly reduce the influence of rotor design parameters on the stress wave signal.
Continuous wave mud pulse generator has high transmission speed and precision,it's rotor shape is of great significance to improve the quality of pressure wave signal.In order to obtain ideal sine wave,we need to design a reasonable shape of the rotor.Triangle rotor circulation area calculation model is established in this paper. Then according to the rotor design criterion,established the triangle rotor shape optimization model,analysisthe sensitivity of the influence of optimizing structure parameterson the maximum pressure drop,minimum pressure drop and the correlation coefficient.The analysis result shows that the rotor straight slope k2 is the most significant influence on stress wave signal.To reduce the sensitivity of the structural parameters,this paper puts forward setting a bypass structure in parallel with stator,then optimize and analysis the sensitivity of the structure. The analysis results show that the parallel bypass structure can significantly reduce the influence of rotor design parameters on the stress wave signal.
引文
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[11]郭仁生.机械工程设计分析和MATLAB应用4版[M].北京:机械工业出版社,2014:100-102.(Guo Ren-sheng.Mechanical Engineering Design Analysis and MATLAB Version 4[M].Beijing:China Machine Press,2014:100-102.)
[2]Wilson C.Chin,Ph.D,M.I.T.MWD siren pulser fluid mechanics[J].Petro Physics,2004,45(4):363-379.
[3]李荣喜,房军.井下旋转压力信号发生器的仿真[J].石油矿场机械,2007,36(2):45-47(Li Rong-xi,Fang Jun.The simulation of downhole rotary pressure signal generator[J].Oil Field Equipment,2007,36(2):45-47)
[4]苏义脑,窦修荣.随钻测量、随钻测井与录井工具[J].石油钻采工艺,2005,27(1):74-78.(Su Yi-nao,Dou Xiu-rong.Measurement while drilling,logging while drilling and logging instrument[J].Oil Field Equipment,2005,27(1):74-78.)
[5]王智明,菅志军,李相方.连续波高速率泥浆脉冲器设计研究[J].石油天然气学报,2008,30(4).(Wang Zhi-ming,Guan Zhi-jun,Li Xiang-fang.The design research of high rate continuous wave generator[J].Journal of Oil and Gas Technology,2008,30(4).)
[6]Malone D.Sinusoidal Pressure Pulse Generator for Measurement While Drilling Tool[P].United States:4847815,1989.
[7]Lavrut E,Kante A,Rellinger P,Gomez S R.Pressure pulse generator for downhole Tool[P].United States:US6970398B2,2005.
[8]Hahn D,Peters V,Rouatbi C,Eggers H.Oscillating shear valve for mud pulse telemetry and associated methods of use[P].United States:US697-5244B2,2005.
[9]贾朋,房军,李林.基于相关系数的连续波发生器转阀优化设计[J].石油矿场机械,2012,41(7):37-42.(Jia Peng,Fang Jun,Li Lin.Optimization design of rotary valve of continuous wave generator based on correlation coefficient[J].Oil Field Equipment,2012,41(7):37-42.)
[10]贾朋,房军,李林.钻井液连续波发生器转阀设计与信号特性分析[J].石油机械,2010,38(2):9-12.(Jia Peng,Fang Jun,Li Lin.Rotary valve design and signal characteristics analysis of continuous wave generator[J].Oil Field Equipment,2010,38(2):9-12.)
[11]郭仁生.机械工程设计分析和MATLAB应用4版[M].北京:机械工业出版社,2014:100-102.(Guo Ren-sheng.Mechanical Engineering Design Analysis and MATLAB Version 4[M].Beijing:China Machine Press,2014:100-102.)