25213.全數(shù)字地震采集技術(shù)在蘇里格地區(qū)的應(yīng)用

1、西安石油大學(xué)碩士學(xué)位論文全數(shù)字地震采集技術(shù)在蘇里格地區(qū)的應(yīng)用姓名：焦桂行申請學(xué)位級別：碩士專業(yè)：石油與天然氣工程指導(dǎo)教師：袁炳強李寶泉20111125Subject：ApplicationandResearchofFullDigitalSeismicAcquisitionTechnologyinSuligeAreaSpeciality：Name：Instructor：OilandGasEngineeringJiaoGuixingYuan

2、BingqiangLiBaoquanAbstractBasedonfulldigitalseismicexplorationtechnology，thedigitalgeophonesystemisemployed，aswellasdigitalsignalsexportedfromdigitalgeophonesaredigitallytransmittedintokeystationsforarrangementandstorage

3、Atlast，thedigitalsignalsareprocessedbyusingthetechnologyofdigitalcombinationandsuperpositionandreprocessedindataprocessingcentersAsthesamewiththeconventionalseismicacquisitionsystem，fulldigitalacquisitiontakesseveralaspe

4、ctswhichincludefineinvestigationofnearsurface，conditionsofshotsexplosionbasedondynamiccharacteristics，datareceivedinwidespectrumandSOonintoconsiderationComparedtotheconventionaltechnology，thenewoneimprovesthecapabilityfo

5、rresistingelectromagneticinterferenceintransmittingsignalsandatthesametimeenhancestheinstantaneousdynamicrangeofsignals，broadening療equencybandsofsignals，andisfavorableforimprovingthesignal—noiseratioandresolutionofseismi

6、cdataAmongthemaingascontainedobjectlayersinSuligegasfield，thereservoirsvaryseverelylaterallyandthethicknessisthin，whichleadstohugerisksofdrillingBasedongeologicalandgeophysicalcharacteristicanalysisofreservoir，thispaperh

7、asdonesomeapplicationresearchoffulldigitalseismicacquisitiontechnologyonShan179wellareainSulige，whichmainlyfocusongeometrydesigntechniqueaimedtoreservoirpredictionbyprestackseismicdataconditionsofshotsexplosiondesigntech

8、niquepointbypoint，digitalgeophoneacquisitiontechniqueAndwehavedrewsomeconclusions：(1)Fulldigitalacquisitionissuitableindesertareawherethethicknessofunconsolidatedlayersisthinnerthan40metersandthedrysandonnear—surfaceisth

9、innerthan15meters(2)NoiseremovalandcombinedtracesprocessingtechniqueshouldbetakenaccountintraceintervaldesignwhichissuitableforthetraitofSNRinobjectareaAccordingtotheeconomicconditionthetraceintervalshouldbeasnarrowaspos

10、sible(3)ThemaximumoffsetshouldbelongenoughtoensurethatobviousAVOanomalyandadequatereservoiranisotropicinformationarerecorded(4)IntheconditionofhighSNRdatathereareadvantagesofwidedynamicrange，widespectrum，highreservationo