资源描述：
《井地密集阵列激发极化法观测系统的分析》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、ABSTRACTBoreholeinducedpolarizationmethod(referredtoastheboreholeinducedpolarization)cantakeadvantageofthedrillingclosedetectionnexttothewellthebottomholeblindmine,comparedwiththegroundinducedpolarizationinexplorationdepthexplorationdeeporebodydeepertomakeupgroundinducedpol
2、arizationmethoddeficiencies.Theinversionmethodbyinsufficientdatalimitations,itisdifficulttomeettheprecisedetectionandcomputerautomaticinversionandimaging.Tothisend,awellsuitableforautomaticinversionimagingexcitationpolarizationobservationandforwardmodelingandinversionsystem
3、-welllandintensivearrayexcitationpolarizationjointobservationmethod,thismethodcanimprovetheapplicabilityofboreholeinducedpolarizationmethod,butalsoimprovesthedetectionaccuracyoftheorebodynexttothewell.Intheaspectof3Dborehole-groundforwardmodeling.Tointroduce3Dborehole-groun
4、dinducedpolarizationmethodnumericalsimulationalgorithmtheory.Three-dimensionalsimulationareausingradialnon-uniformsubdivisionofdiscrete,wellhead-centered,equidistantfromthesplitinthediameterdirection,splitintoeightaliquotsuniformangleof45°inthedirectionoftheringdrilling，tom
5、akesplitmethodmoreinlinewiththelawsofthewellfielddistribution,correspondingwiththissplit,wedesignfourradialsurveycenteringonthewellheadobservationdevice,effectivelysolvethecaseofthewellunknownlocationgeologicalbodyisdifficulttodetermineobservationsdirection.Weusingradiallys
6、plitthefiniteelementmethodnumericalsimulation,andthepreparationofthecorrespondingforwardsimulationprogram,webuildseveraltypicalgeologicmodelforfiniteelementsimulationtotestthereliabilityofthealgorithmandtheprogram,andunderdifferentcircumstancesabnormalresponsewereanalyzed.I
7、ntheaspectof3Dborehole-groundinversionimaging.Firstofall,thebasicprinciplesandmethodsofinversionareintroduced;Second,Weusingtheabnormalpotentialoffiniteelementmodelingmethodtocalculate,andonthisbasistoderivethepartialderivativematrix;Third,inordertoeffectivelyimprovetheaccu
8、racyoftheinversion,reducinginversionofmultiplesolutions,thesmoothnessconstraintasa
