第14卷第4期2023年2月黑龙江科学HEILONGJIANGSCIENCEVol.14Feb.2023基于预测反褶积理论的多次波压制技术研究冯晟,郑勋,王沛,宋峙潮(中海油能源发展股份有限公司工程技术分公司,天津300467)摘要:多次波压制采用多道叠加的方法,即通过物理多道数据叠加的方式来识别和压制多次波,但会导致多次波产生偏移距,且随着叠加次数的增加偏移现象越来越明显。针对这一现象,提出了基于预测反褶积理论的地震数据保真处理技术,在单道多次波数据处理过程中产生了较好的效果。但地震资料需要了解整体剖面,还需检验其在地震剖面上的压制效果。常规浅水区块地震剖面同向轴较粗,在1s区间内多次波发育,反褶积利用周期性多次波压制了海底鸣震,明显提高了浅层构造的分辨率,为井场勘察奠定了良好的基础,可保证海洋钻探工程的安全性。关键词:井场勘察;反褶积;多次波;地震剖面中图分类号:P631.44文献标志码:A文章编号:1674-8646(2023)04-0136-03ResearchonMultipleWaveSuppressionTechniqueBasedonPredictiveDeconvolutionTheoryFengSheng,ZhengXun,WangPei,SongZhichao(EngineeringTechnologyBranchofCNOOCEnergyDevelopmentCo.LTD.,Tianjin300467,China)Abstract:Multichannelsuperpositionmethodisadoptedformultiwavesuppression.Multiplewavesareidentifiedandsuppressedbymeansofsuperpositionofphysicalmultichanneldata,butitwillleadtomultiplewaveoffset.Andtheoffsetphenomenonbecomesmoreandmoreobviouswiththeincreaseofsuperpositiontimes.Accordingtothephenomenon,thestudyproposestheseismicdatafidelityprocessingtechnologybasedonpredictivedeconvolutiontheory,withwhichrelativelygoodeffectisgainedintheprocessofsinglechannelmultiplewavedataprocessing.Butweneedtoknowthewholesectionofseismicdata,andalsoneedtotestitscompressioneffectontheseismicsection.Thecoaxialaxisoftheseismicprofileintheconventionalshallowwaterblockisthicker.Inthe1sinterval,multiplewavesdevelop,andsubmarinechirpsissuppressedwiththeperiodicmultiplewavesofdeconvolution.Inthisway,theresolutionratioofsuprastructureimprovessignificantly,goodfoundationforexplorationislaid,andthesecurityofoffshoredrillingprojectisensured.Keywords:Wellsiteexploration;Deconvolution;Multiplewave;Seismicsection收稿日期:202...