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MATLAB(()100083),MATLAB,,,;MATLAB;0,,,,,,MATLAB,,MATLAB,,1,,,,S(t),t,R(t),f(t):f(t)=S(t)3R(t)=0TS()R(t-)d,:(1)(2),,(3),(4),,(5),,,,,,:=0.23V0.25(:/)=0.31V0.25(:/)01ComputerApplicationsofPetroleum2009,Total62No.2,,:V=KH16R16,V,K,R,H:(1),,,(2),,(3)(4),(5),(6)X(t),R(t),S(t),X(f)=S(f)3R(f)S(f)=X(f)R(f)S(t)2,,,,,,,1800-4000m/s,1300-1400m/s,,1,,,,,,2123,,MATLAB,,,33,,(),:n=5000;116220092dx=50;dt=0.002;nl=3;m=80;v0=[1000150020002500];1v1=[1000150013002500];2v2=[1000150020002500];3h(1,1)=800;h(2,1)=1200;h(3,1)=1800;,xmax=(m/2+1)3dx;ymax=n3dt;p=2;a0=200;f=20;nw=60;b=30;tt=0:dt:(nw-1)3dt;wb=a03sin(23pi3f3tt).3exp(-b3tt);hva0=h(3,:).3v0(1:nl);hvb0=h(3,:)./v0(1:nl);hva1=h(3,:).3v1(1:nl);hvb1=h(3,:)./v1(1:nl);hva2=h(3,:).3v2(1:nl);hvb2=h(3,:)./v2(1:nl);fori=2:nlhva0(i)=hva0(i)+hva0(i-1);hvb0(i)=hvb0(i)+hvb0(i-1);hva1(i)=hva1(i)+hva1(i-1);hvb1(i)=hvb1(i)+hvb1(i-1);hva2(i)=hva2(i)+hva2(i-1);hvb2(i)=hvb2(i)+hvb2(i-1);endhva0=sqrt(hva0./hvb0);hva1=sqrt(hva1./hvb1);hva2=sqrt(hva2./hvb2);hva0(1)=v0(1);hva1(1)=v1(1);hva2(1)=v2(1);fori=1:nlforj=2:mh(i,j)=h(i,j-1)endendmk=round(m/2);hvb0(mk)=0;hvb1(mk)=0;hvb2(mk)=0;hvb1=(1:m)3dx;hvb1=(1:m)3dx;hvb2=(1:m)3dx;fori=1:nlr0(i)=33(v0(i+1)-v0(i))/(v0(i+1)+v0(i));r1(i)=33(v1(i+1)-v1(i))/(v1(i+1)+v1(i));r2(i)=33(v2(i+1)-v2(i))/(v2(i+1)+v2(i));endx=zeros(n,m);b=pi/180;fori=1:nlforj=1:80ifj=30;z=23h(i,j)/hva0(i);t=round(z/dt);x(t,j)=x(t,j)+r0(i);elseifj30&&j=50;z=23h(i,j)/hva1(i);t=round(z/dt);x(t,j)=x(t,j)+r1(i);elsez=23h(i,j)/hva2(i);t=round(z/dt);x(t,j)=x(t,j)+r2(i);endendendfigure(1);record=zeros(n+nw-1,m);xx=(0:(n+nw-2))3dt;fori=1:mrecord(:,i)=conv(x(:,i),wb)+(i-mk)3dx;plot(record(:,i),xx,b);holdon;endaxis([-xmax,xmax,0,ymax]);axisij;ylabel(t);21ComputerApplicationsofPetroleum2009,Total62No.244(5)5,,,,,,,,,,,,(6)64MATLAB,MATLAB,,MATLAB,,,,,,[1],,,2006[2],MATLAB,,2005[3],,,2008161[4],COMDelphiMATLAB,20084[5],Matlab,,200815[6],,,20069316220092ABSTRACTSFREEDISCUSSIONABOUTINFORMATIZATIONOFPETROCHINA/LiDawei,ResearchInstituteofPetroleumExploration&Development,Beijing,CAP,2009(2):2-9Basedontheclassificationanddefinitionofinformationsystem,thesituationandproblemsofPetroChinain2formatizationareanalyzed.20strategiesofconstruction,managementandapplicationareproposedanddiscussedfrommanagementandtechnology.Theyarepeople-oriented,leadershipincommand,insistingonunify,person2alitypermission,consolidatingstepbystep,riskmanagement,systemguarantee,equilibriumrelationship,inte2gratedcooperation,payingequalattentiontoquantityandquality,thestickandthecarrot,matualpromotionofconstructionandapplication,stabileandeasytouse,innovationanddevelopment,experimentandthenpopulariza2tion,securityguarantee,maximumsharing,superiorleftandinferiorwashedout,facinguptoproblemsandpro2tractedstrategy.Keywords:PetroChina;informatization;construction;management;application;strategyTHESEISMICFORWARDMODELBASEDONMATLAB/JiaYuewei,KeyLaboratoryofGeo-Detection,Minis2tryofEducation,ChinaUniversityofGeosciences(Beijing),CAP,2009(2):10-13Thesyntheticseismicforwardmodelisthefoundationof3Dmodelingcalculation.Basedontheprincipleofseismicexploration,greatmathematicalcalculationofMATLABandimagevisualizationfunctionsareusedtobuildthesyntheticseismicrecordofathree-playermediamodel.Thephysicsmechanismisfirstexplainedinthepaper,thenstructureandparameterselectionofthegeologicalmodelareintroduced,finallythesyntheticseismicrecordismadeaccordingtoaconcretegeologicalmodel.Keywords:seism;MATLAB;forwardmodelingDISCUSSIONABOUTTHEAPPLICATIONOFDATAELEMENTTECHNOLOGYINPETROLEUMEXPLORA2TIONANDDEVELOPMENT/LiZhongquan,TanXiangnong,etal.DataCentreofXinjiangOilfieldCompany,Pet2roChina,CAP,2009(2):14-16Dataelementtechnologycanprovideunifiedstandardsofdataelementfordataexchangeintheoilfieldandregulationswhichareunifiedindatalayersandobservedtogetherinvarieddisciplinesforexplorationanddevelop2ment.Thepaperintroducesthebasicconceptionandtrendofdevelopmentofdataelementtechnology.Combiningwiththedatastandardsestablishedinoilfieldexplorationanddevelopmentinformationinrecentyearsandpracticalapplication,theexplorationanddevelopmentdataareregulatedthroughapplicationofthedataelementtechnologyandtheprobabilityofdataexchange,sharing,serviceandapplicationcapacityisimproved.Keywords:dataelement;DataElement;datadictionary;datasharing;explorationanddevelopmentDATASUPERVISIONMETHODSANDPRACTICE--TAKINGDRILLINGANDMUDLOGGINGDATASUPER2VISIONASANEXAMPLE/LiuYing,ChenSilin,DataCentreofXinjiangOilfieldCompany,PetroChina,CAP,2009(2):17-20Timeliness,accuracy,integralityandconsistencyofdataarenormalmanagementindices.Xinjiangoilfieldcompanysetupthefunctionaldepartmentofdatasupervisionmanagementininformatizationconstructioninordertoensuredataquality.Aftercontinuousexploration,innovationandpractice,threeaspectsofdatasupervision(supervisionflow,supervisionmanagementmechanismandmethod,supervisionmanagementconcept)havebeenestablished,improvedandperfected.4importantcognitionsaregotwhicharevaluablereferenceindatamanage2ment,thecoreofenterpriseinformatizationconstruction.Keywords:data;quality;su
本文标题:基于MATLAB的地震正演模型实现[1]
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