1、揚(yáng)州大學(xué)碩士學(xué)位論文石油鉆井鉆柱在線監(jiān)測(cè)系統(tǒng)的設(shè)計(jì)研究(申請(qǐng)碩士學(xué)位)趙荔指導(dǎo)教師：張瑞宏教授揚(yáng)州大學(xué)中華人民共和國(guó)，揚(yáng)州2015年6月IlAbstractDownholeworkingenvironmentofoildrillingisverycomplex，theinteractionofdrillstemandboreholewall，drillandgeologicalstratificationcreatesfrictionw

2、hichcausesthevibrationofdrillstring，andtheabnormalvibrationwillcausestickingorstickslip，atthesametime，thetorquefluctuationisverybigTheabnormalvibrationthreatensdownholeoperationsafety，whichleadstothefractureorfailureofdr

3、illstringsystemtools，triggeraseriesofengineeringaccidents，reducetheefficiencyofthedrillingoperationandraisethecostTherefore，asetofdrillstringmonitoringsystemisverynecessaryThispaperdesignedasetofonlinemonitoringsystemwit

4、htheC805IF005SCMasthecontrolcenter，studiedanalgorithmforlaterdrillstringfailurediagnostictechnologyFirstly，determinethetotaldesignscheme，themonitoringofthedrillstringmustbeanalyzedThissystemwasdividedintohardwaredesignpa

5、rtandsoftwaredesignpartThehardwaredesignpart：thedataacquisitionsystem，signaltransmissionsystem，dataprocessingsystemandalarmsystem，thispaperadoptedthevibrationsensorandtorquesensorcollection，throughthebluetoothwirelesstra

6、nsmissiontechnologyrealizingserialcommunicationfunction，thedataprocessing，recordingandsoundandlightalarmSoftwarepartincludestheprogramdesignofuppermachineandlowermachine，simulationsofthecurveapproximationofnonlinearfunct

7、ionsbyusingMatlab，specificallyfordesigningterminalhumancomputerinteractioninterfaceofdrillstringmonitoringsystem，inordertorealizethereal—timedataacquisition，displayandrecordTheresultsofMatlabsimulationshowthatthefeasibil

8、ityandsuperiorityofthealgorithm，theresultsofindoortestshowthattheinstantaneityandfeasibilityofthissystemMeanwhile，thedesignofwirelesstransmissionrealizesonlinemonitoringSpeciallyfordisplayingdatasignal，normalandabnormals

9、tateonthewaveform，recordingdatainrealtimeanddesigningsoundandlightalarmtomakethesystemmoreintuitiveandvividThisdrillstringmonitoringsystemisworthofpopularkingandapplyingKeywords：Drillstring；Onlinemonitoring；SCM；Algorithm