深水鉆井環(huán)境下的井筒溫度壓力計算方法研究.pdf

1、中國石油大學碩士研究生學位論文華東(申請工學碩士學位)深水鉆井環(huán)境下的井筒溫度壓力計算方法研究學科專業(yè)：培養(yǎng)方向：碩士生：指導教師：油氣井工程油氣井力學、信息與控制王博管志川(教授)入學日期：2005年9月論文完成日期：2007年4月ResearchontheMethodofWellboreTemperatureandPressureCalculationduringDeepwaterDrillingWANGBo(Oil&GasWell

2、Engineering)DirectedbyProfessorGUANZhiehuanAbstractWitlldeepwaterexplorationgatheringpaceitisclearthatdeep—waterdrillingisbecomingahotspotinrecentyearsApreciseknowledgeofwellbolltemperatureandpressureisparticularlyimport

3、antforthedeep—waterdrillingHoweverbecauseofthemechanismofheatexchangewiththeseaismollcomplexthanforrockformationthereliabilityofexistingcorrelationandmodelsissometimesreducedindeep—waterwellsAccordingtotheconversationofe

4、nergylawandbasicprincipalsofheattransferawellborecirculatingheattransfermodelofdeepwaterlrillinghasbeenproposed，whichhasbeensolvedbytermlesssteadyfinitedifferencemethodOverallheattransfercoefficientsaleusedinthismodel，th

5、epredictedresultsfromthenewmodelpresentedinthispaperalesatisfactorilyclosetothosefromotherprovenmodels，SOthismodelwasprovedtObevalidThesensitivitiesofparameterstoaffectthecirculatingtemperatureinwellbollhavealsobeenanaly

6、zedThenewmodelCanbeemployedtocalculatetemperaturedistributionofdrillingfluidinthepipepipestring，thedrillingfluidintheannularAccordingtothewellboreheattransfercharacteristicunderstaticcondition，awellborestaticheattransfer