鄂爾多斯盆地地震資料線性噪聲衰減技術.pdf

1、y11l國26分類號P315叭密級西步石海夫海Xi’anShiyouUniversity工程碩士碩士學位論文題目鄂爾多斯盆地地震資料線性噪聲申請人指導教師姓名申請學位專業(yè)提交論文日期石油與天然氣工程2007年11月20日英文摘要Subject：TheseismiclinearnoiseattenuationinErdosbasinSpeciality：PetroleumandgasengineeringName：ChenLisheng(

2、signature)￡』垡竺圭生幽Instructor：WuShaobo(signature)h厶墨l區(qū)衛(wèi)k12LiFengQi(signature)jj鷗魚；ABS’I’RAC’I’TheErdosbasinisthesecondsedimentbasininChinatheresourceofoilandgasisveryabundante，withtheincreasemeutofoilandgasproduceabilityth

3、edegreeofprospectingforoilandgasfieldbecomemoreandmoredeep，theseismicprospectingsteptotheedgeofbasinandtothehinterlandofloess，andoilandgasprospectingdeveloptothefieldoflithologyreservoirButbecauseofthelimitofsomeaspectsl

4、ikebadreservoirattribute，strongconcealmentofreservoirandthecomplexsurfacecondition，suchasloessanddesert，it’sdifficulttobreachforthequanlityofrawdatamostseismicrecordsareverylowSNRdatawithmanykindsofregularnoiseandrandomn

5、oisetherealemanydiversevelocitylinearinterfereandthephenomenaofdispersedfrequencyexistintheseismicdatafarthermore，thestrongsurfacewaveandshallowmultirefractionalsoexistindataInthisreport，thetraitofseismicdatainErdosbasin

6、willbeanalysed，thecharacterofrelatedlinearinterfereandprocreantmechanismwillberesearched，somediffirentmethodsoflinearinterfereattenuationareadopted，thecombinationofdiverseattenuationteclmologiesandstackareconfirmedAllthe

7、secanadvancetheSNRofseismicdataeffectivelyimprovethequalityofstacksection，obtainbettereffectinpracticalapplicationandformasetoftechnicsequenceofllighfidelityandhighSNR∞ismiclinearnoiseattenuationKeywords：seismicdataproce