MWD旋轉(zhuǎn)閥連續(xù)壓力波發(fā)生器結(jié)構(gòu)研究及轉(zhuǎn)子受力分析.pdf

1、中國石油大學(xué)（華東）碩士學(xué)位論文MWD旋轉(zhuǎn)閥連續(xù)壓力波發(fā)生器結(jié)構(gòu)研究及轉(zhuǎn)子受力分析姓名：高敦升申請學(xué)位級別：碩士專業(yè)：物理學(xué)指導(dǎo)教師：沈躍20100401ResearchontheStructureofMWDRotaryValvePressureContinuousWaveGeneratorandtheRotorForceAnalysisGaoDunsheng(Physics)DirectedbyAssociateProfShenYue

2、AbstractMeasurewhiledrilling(MWD)isakindofmodemdrillingsupportingtechnologywhichcanreal—timemeasureandtransmitthedownholeinformationduringthedrillingprocessMWDusuallytransmitsthedownholedatabythedrillingfluidinformationt

3、elemetrysystem，inwhichdrillingfluidpressurewavegeneratoristhecoredeviceToimprovetheinformationtransmissionrate，thecurrentadvanceddrillingfluidinformationtelemetrysystemtransmitsthedownholedatabythecontinuouspressurewaveg

4、eneratorwhichisbasedonrotaryvalveorosdllatingshearvalve，andtransmitsdownholedatainabandwidemodeTllispaperconductsthetheoreticalinvestigationonthegenerationmechanismofdrillingfluidpressurewave，thedesignoftherotaryvalveand

5、theforceconditionoftherotaryvalverotoretc，aimstoprovidetheoreticalguidanceforthedevelopmentofthecontinuouspressurewavegeneratorAccordingtothenonsteadyflowwaterhammertheoryofhydromechanics，amathematicalmodelofdrillingflui

6、dpressurewaveisbuiltbystudyofthepressurewavegeneratingmechanismCombiningthecharacteristicsofrotaryvalve，themathematicalmodelofsinusoidalpressurewaveisbuiltandthetheoreticalrelationshipbetweenthevalveholeopeningextentandt

7、hepressureamplitudeisstudiedAccordingtotheprocessanalysisandthestructuralcharacteristicsofafourvalveholesrotaryvalveproducingthewaterhammerpressure，thestructureandgeometricparameteroftherotaryvalvestatorandvalveholeofrot

8、oraredeterminedbymathematicalmodelingandcalculationrespectivelybasedontheestablishmentofsurfacemicro—elementintheconditionofnotconsideringthemechanicalmotioncharacteristicsoftherotorThosecallprovideatheoreticalbasisforth