煤矿采区三维地震属性应用中的风险分析与动态解释

346Vol.34,No.6201012GEOPHYSICAL&GEOCHEMICALEXPLORATIONDec.,2010(,710054):,,,;,,,:;;:P631.4;P315:A:1000-8918(2010)06-0745-05,,,,;,12060,3[1]:(1)206070,(2)208090,(3)2090,,,,,,,1995BahorichAmoco,Amoco,,,()3[2]:Bahorich(1995)(C1),;Marfurt(1998)(C2),Marfurt(1999)(C3)C2C3,,,2,,;,,,2.1(1),10m,,100Hz,,:2010-01-2034a;b;c;d11a[3];1b0ms50ms,,;1cb(8104050Hz)Ormsby;1d1c()1/4(1/2)(),,(2),H305.92m,,;,02,;3116,3331.2413.86m,;,03,(33),,,2.2,(1)[4],;,,(2),:,,;,,;,;,(3):,;,,;,,,,,;Q,2.3(1),,[4],,,,,(2),:,,,;,,;,;,;,[5],;,;,,6476:3H,,,,:;,;H,(1)7305A(394865070,3923500),5(2):121(0),12m;122(12),42m;123(18),55m;124(20),40m;125(7),65m,10m,(2),,;,7305A,7305A(3)2H73053H7305(3)7305:(4);(5);(6)(4)456:,7305A10m;,(5m),4H747345H6H7H8H(5)7305:2F41;2F42(78),2F412F425m,4,Barnes:,Barnes,,,,,:[1],,,.[J].,2002,41(4):422-424,438.[2],.[J].,2007,30(1):47-51.[3].SEG.2006.[4],.[J].2006,45(4):373-379,408.[5].[J].,2007,30(1):7-15.8476:RISKANALYSISANDDYNAMICINTERPRETATIONINTHEAPPLICATIONOF3DSEISMICATTRIBUTESINTHECOALMININGAREAZHUHong2juan(Xi’anBranch,CCRI,Xi’an710054,China)Abstract:Withthedevelopmentofseismicattributetechnology,thereliabilityoftheprecisionofattributeshassomeriskinmeetingtherequirementsofancoalminingarea,whichisrelatedtotheuncertaintyandnon2exclusivenatureintheapplicationofseismicattrib2utes.Thispaperhasanalyzedthefactorsresponsiblefortheappliedriskofseismicattributesand,withexamples,indicatedthatthein2tegrationofthethree2dimensionalseismicattributeinformationwiththegeologicalinformationrevealedintheminetunnelforrealizationofdynamicinterpretationistheeffectivemeanstoimprovethereliabilityoftheresultsof3Dseismicattributesinacoalminingarea.Keywords:seismicattributes;uncertainty;dynamicinterpretation:(1977-),,,,740RECONSTRUCTIONOFTIMEDOMAINAIRBORNEELECTROMAGNETICSRESPONSEDATABASEDONMATRIXPENCILMETHODZHENGKai1,WANGXu2ben1,CHENBin2,LVDong2wei1(1.CollegeofInformationEngineering,ChengduUniversityofTechnology,ChengduSichuan610059,China;2.ChinaAeroGeophysicalSurveyandRe2moteSensingCenterforLandandResources,Beijing100083,China)Abstract:Inordertomaketimedomainairborneelectromagneticsresponsedatafastinterpret,theresponsedataaretransformedfromtimedomaintodomainandthepolesandresiduesareextracted,whichrepresentthegeometricandphysicalcharacteristicsofthetargetsinvestigate.Theinducedelectromotiveforcearerepresentedasthematriceswhicharedecomposedtoconstructamatrixpencil,whicharebasedonmatrixpencilmethod.TheparameterestimationiscarriedoutbyusingtheSingularValueDecompositionandtheLeastSquaresMethod.Theresultsofforwardandtheoryresponsedatareconstructionhaveshownthattheextractedpolesandresiduescanbedescribedthemaincharacterisofthetransientresponse,andrandomnoisearerestrainedinsomedegree.Thatis,thispracticalmethodcanbeprovidetofasttimedomainairborneelectromagneticsdatainterpretation.Keywords:timedomainairborneelectromagnetics;matrixpencil;reconstruction;Denoising:(1983-),,,,947