资源描述：
《PDC钻头水力学研究最新进展》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第31卷第5期石油钻采工艺Vol.31No.52009年10月OILDRILLING&PRODUCTIONTECHNOLOGYOct.2009文章编号：1000–7393（2009）05–0023–06PDC钻头水力学研究最新进展1234朱海燕王锡洲刘时英刘清友（1.江汉石油钻头股份有限公司，湖北武汉430223；2.中国石油化工股份有限公司科技开发部，北京100728；3.四川石油管理局装备制造公司，四川成都610051；4.西南石油大学“油气藏地质及开发工程”国家重点实验室，四川成都610500）摘要：以近年来国内外钻头水力学研
2、究的文献为基础，论述了PDC钻头的水力学参数、井底流场和水力结构优化研究的最新进展，提出了研究中存在的问题和今后研究的方向。分析可知，PDC钻头水力参数的优选，趋向于使用较高的排量和较低的泵压；PDC钻头井底流场的模拟已逐渐由二维、单喷嘴的流动数值模拟发展到三维、旋转、非对称多喷嘴的流动数值模拟；钻头井底流场和试验已有机结合起来；PDC钻头井底流场的模拟，仍以清水为介质，没有考虑钻井液的黏度、井底岩屑和井底温度等对流场的影响。PDC钻头水力学研究仍处于一个定性阶段，对PDC钻头水力学状态的量化是今后研究工作的重点。关键词：PDC钻头
3、；水力学；数值模拟；井底流场；水力结构中图分类号：TE921文献标识码：AThelatestdevelopmentsofthehydraulicsresearchonPDCbit1234ZHUHaiyan,WANGXizhou,LIUShiying,LIUQingyou（1.JianghanPetroleumDrillCo.,Ltd.Wuhan430223,China;2.ChinaPetroleum&ChemicalCorporationTechnologyDevelopmentDepartment,Beijing100728,C
4、hina;3.SichuanPetroleumAdministrationEquipmentManufacturingCompany,Chengdu610051,China;4.SouthwestPetroleumUniversity,StateKeyLaboratoryofOilandGasReservoirGeologyandDevelopmentProject,Chengdu610500,China）Abstract:BasedonLiteratureinrecentyearsofBitHydraulicsathomeanda
5、broad,thispaperaddressesthelatestdevelopmentsofhydraulicparametersofPDCbits,bottomflowfieldandtheprogressofhydraulicoptimization,proposingresearchproblemsandfutureresearchdirections.AnalysisshowsthatoptimizationofhydraulicparametersofPDCbitstendtousehigherdisplacementa
6、ndlowerpumpingpressure;thebitsbottomflowfieldsimulationHasbeengraduallyshiftingfromtwo-dimensional,single-nozzleflownumericalsimulationdevelopedtoathree-dimensional,rotating,non-symmetricmulti-nozzleflownumericalsimulation;bitsbottomflowfieldhasorganicallycombinedwithe
7、xperiments;PDCbitsbottomflowfieldsimulationusewaterasthemedium,leavingtheinfluenceofflowfieldbytheviscosityofdrillingfluid,bottomdebrisandthebottomtemperatureoutofaccount.TheHydraulicsResearchonPDCbitstillataqualitativestage.thequantificationofPDCbithydraulicsisthefocu
8、soffutureresearchwork.Keywords:PDCbit;hydraulics;numericalsimulation;bottomflowfield;hydraulicstructuresPDC钻头在软到中硬地层中
