海上油氣地震勘探的側反射干擾衰減方法研究和應用.pdf

1、天津大學碩士學位論文海上油氣地震勘探的側反射干擾衰減方法研究和應用姓名：王征申請學位級別：碩士專業(yè)：電子與通信工程指導教師：郝久玉趙嘉志20090401ABSTI認CTTherelativeamplitudepreserving，highresolutionhighS／Nratioaretheroleoftheseismicexplorationdataprocessingintheoilandgasindustryandareallt

2、heprocessorsworkingforMoreandmorebuldingsandvesselslxxTomeappearingontheseafollowingthedevelopment，forexampleoilrigs，cargos，Ⅱghthouseetc，thoseobstructscauseacoherentnonlinearnoiseontheseismicdatasidereflectionnoise，thequ

3、alityofseismicimagingisaffectedveryseriouslybecausethetraditionalmethodsCall’tworkwellspeciallyfortheprestackmigrationimaging，SOafurtherstudyisnecessaryInthisthesis，thecreativeresearchismainlydoneonthefolowingfacets：Firs

4、t，togivingabriefintroductionofthemarineseismicexplorationactivity；Analyzinghowthesidereflectionnoisetobethegeneratedandit’Scharacters，aRfibutionsinverydetail；Thenacreativeideawasbuiltbasedontheaboveanalysis：locatingthepo

5、sitionoftheobstructsthroughthesampleshots，markoutthenoiseeliminationwindowsbyfollowingtheshapeofthenoisesignals；ThenoisewasfilteredoutinFKdomainmeanwhileavoidedthealiasandprotecttheprimaryreflectorinmaximumbyoptimizingno

6、iseattenuationwindow；AlsoaamplituderecoveryoperationWasdonefortheamplitudepreservingpurposeThemaneuverabilkyandefficiencyforhugedatawereconsideredaccording懿thenecessaryofproductionBaSedontheaboveresearchworkthekinematics

7、anddynamicsofthenoisewasconfirmed；Softwarewasdeveloped；TherealdataprocessingresultWaSverysatisfiedandstablebycomparingtheimagesThetestalsoconfirmedthatthismethodcanhandleprocesshugedatainaeasywayKEYWORDS：oilexplorationse