三维井眼轨迹仿真研究

＊钟　原　陈　浩　李悦钦　何玉发＊()　　对井眼轨迹三维仿真,能使井眼轨迹更加生动直观的展示出来,给钻采作业提供可靠依据。本文在曲线插值算法和图形透视原理研究的基础上,将离散的井眼轨迹数据通过插值算法平滑化,并通过三维透视投影原理实现其三维仿真。在理论研究的基础上,利用VisualBasic开发了三维井眼轨迹仿真系统,该系统能进行三维井眼轨迹放大、缩小、旋转等操作,可从多方位和角度观察仿真结果。系统使用维护方便,具有较强的实用价值。　井眼轨迹;可视化;三维仿真;VisualBasic0　,、,,。,,、,,、。,,,、、,,。MicrosoftVisualBasic6.0,、、,。11.1,。,,1。1　,[1][2][3]。、。、、、、、,。1.2[4][5],:。,(SX,SY)(x,y,z)(p,θ,φ),。P,。OP,P45石油工业计算机应用　2008161＊＊:,:,(CXJJ27006)。(1982-),,,:,。D。,(x,y,z),(SX,SY),2。P,(q,θ,φ),。q(0,0,0)。q。,。θφ。(q,θ,φ)D,。2　P(q,θ,φ)。(X,Y,Z),(Xe,Ye,Ze),[4][5]:(Xe,Ye,Ze,1)=(X,Y,Z,1)-sinθ　-cosθcosφ　cosθsinφ　0cosθ　-sinθcosφ　-sinθsinφ　00　　　sinφ　　　-cosφ　00　　　　0　　　　ρ　　0(1)1.3。(X,Y,Z),(X,Y,Z,1),4×4。1.3.1放缩变换K,[4][5]:　　　　　　　　1　0　0　00　1　0　00　0　1　00　0　0　1/K(2)2.3.2旋转变换[1][2]θ。Z,:　　　　　RZ=cosθ　sinθ　0　0-sinθ　cosθ　0　00　　0　　1　00　　0　　0　1(3)X,:　　　　　RX=0　　0　　0　00　cosθ　sinθ　00　-sinθ　cosθ　00　　0　　0　1(4)Y,:　　　　　RY=cosθ　0　sinθ　00　0　0　0-sinθ　0　cosθ　00　0　0　1(5)1.4(),──,、。,。,,[4]。3。3　22.1Access2003,WellData,WellDataIn。VisualBasicEXE,。,,。4。4　46ComputerApplicationsofPetroleum2008,Vol.16No.12.22.2.1数据预处理流程图(图5)5　2.2.2井眼轨迹显示流程图(图6)6　2.2.4图形变换(3)、(4)、(5);、(2),,,。3,。(1)。7:X、Y、Z,,;。、、,8。1　7　　　8　4(1)VB,Ac-cess2000,,。(2)、、。(3),、、、,,。[1]、、,[J],,2003,23()57-59[2]、,[J],(),2006,30(6)42-45[3]、、,[J],,1997,19(2)11-14[4]、,[M],,1999[5],VB[M],,2003[6]、,[M],,199347石油工业计算机应用　2008161Inoilproduction,inordertotakeholdofthevariationruleofreservoirbehavior,toprovidereliablebaseforregulationofdevelopmentplanandensureoilfielddevelopedreasonablelyandefficiently,productionperformancedatafromtestingareoftenanalyzed.Analyticalstudyneedstodrawdifferentkindsofdynamicdiagramsandcurveswiththeavailabledata.Thepaperdiscusseshowtodevelopthekeyprogramtechnologyfordynamicgraphics.Keywords:Delphi;petroleumsoftware;oilfielddevelopment;graphicsoftwaredevelopmentDESIGNANDIMPLEMENTATIONOFTHEREMOTEDATAACQUISITIONSYSTEMFOROILWELLSBASEDONADAM5510MANDGPRS/QuChangbo,WangYonggui,SoftwareSchoolofLiaoningTechnicalUniversity,CAP,2008,16(1):27-31TakingtheprogrammablecontrollerADAM5510MofPCstructureasthelowercomputerofthedataacquisitionsystemcanrealizeoperatingmodedataacquisition,storage,processandcommunication,etc.WithGPRSnetworkandInternetnet-work,instructionresponseanddataexchangecanbeimplementedbetweenlowercomputeranduppercomputeroftheremotesupervisorycentre.Thepapergivesadiscussiononhardwarestructure,dataacquisitioncommunicationprocessandsoftwarefunctionofthedataacquisitionsystem.Keywords:oilwellmonitoring;remotedataacquisition;ADAM5510;GPRSPRODUCTIONPERFORMANCESIMULATIONSTUDYANDAPPLICATIONINGASWELLSOFABNOR-MALHIGHPRESSURE/LiuDaojie,LiuZhibin,ZhouJunjie,etal.,SouthwestPetroleumUniversity,CAP,2008,16(1):32-34Productionperformancesimulationingaswellsofabnormalhighpressuredoesnotonlyovercomesomedisadvantagesofthetraditionalphysicalsimulationwhichiscostlyandcomplex,butalsopossessesaccuracyofcomputeranaloguesimulation.Inconsiderationofthecharacteristicsofhighpressureandhightemperatureingaswellsofabnormalhighpressure,thepro-ductionpressuredropisbrokenupintothreeprocesses:formationflowpressuredrop,boreholeflowpressuredropandspoutflowpressuredrop,andaflowmathematicalmodelofgaswellproductionperformanceisestablished.Withcomputersimula-tiontechnology,theformationfluidflowprocess,boreholefluidflowprocessandgasnipplefluidflowprocessinagaswellofabnormalhighpressurearesimulatedandtheflowparametersofgaswellproductionperformancearepredictedwhichcanprovidebasicdataforthenextdynamicproductionprorationofagaswellwithabnormalhighpressure.Throughcaseanaly-sis,theproductionprorationresultworkedoutfromtheoptimizedmodelisveryclosetothepracticalone.Itindicatesthatproductionperformancesimulationisofguidesignificanceinrealproduction.Keywords:abnormalhighpressuregaswell;simulation;pressuredropdisintegration;dynamicstate;predictionSTUDYONTHECHARACTERISTICSOFTHEDOWNHOLEFLOWFIELDINTHEAUTOMATICANTI-DE-VIATIONDRILLINGSYSTEM/LiQiumin,LiuBaiyan,SuYinao,etal.,CollegeofMachineryandAutomation,WuhaiUniversityofScienceandTechnology,CAP,2008,16(1):35-38Whentheautomaticanti-deviationdrillingsystemisinoperation,arelativerotationspeedisneededbetweenthesteeringsleeveanddrillpipe.Thesteeringsleeverotatesasaresultofthefrictiontorqueexertedbythebearingconnectingthesleeveandthedrillpipewhilethedownholebacktrackingmudwillalsoproduceareversaltorquewhichpreventsthesleevefromrotatingwhenpassingit.Thereversaltorqueisthekeyfactortoensuretherelativerotationspeed.FLUENTsoft-warepackagecanbeusedtomodelthemudflowfielddownholeandexploretheflowbehaviour.Simulationresultsindicatethatthereversaltorquedependsonseveralfactorssuchasmudflow,rotationspeedofthesleeve,etc.Andaslongastherotationspeedofthedrillpipeexceedsthecriticalspeedwhichbalancesthefrictiontorqueofdrillpipeandthesleeve,thereversaltorquecanproducerelevantspeeddifferencebetweenthesleeveanddrillpipe.Keywords:automaticanti-deviationdrilling;downholeflowfieldmodel;steeringsleeve;reversaltorqueIMPLEMENTATIONOFDIGITALPIPELINEINOILFIELDSBASEDONGIS/WeiBo,TangJun,GeoscienceSchoolofChangjiangUniversity,CAP,2008,16(1):42-44Nowadays,adigitaloilfield