简介：High-qualityseismicgeometryisthekeytoobtainhigh-qualityseismicdata,andcanaffecttheaccuracyofdataprocessingandimaging.Basedontheanalysisoftherelationshipbetweenthequalityofthegeometryandthefouracquisitionparameters(thenumberoftraces,shotlinespacing,andthespaceandnumberofreceiverlines),aqualityevaluationmethodofthegeometrybasedoncomprehensivequalityfactor(CQF)isproposed,andtherelationshipbetweenthegeometryqualityandthefourparametersisgiven.WeusefielddatacollectedinanoilfieldinWesternChinawithcomplexgeology:Firstweuseawideazimuthgeometry.Then,wecalculatetherelationshipcurvebetweengeometryanddataqualitybyvaryingeachparameterwhilekeepingtherestfixed.andtheanalysisresultsaregivenbyusingtheCQFevaluationmethod.Theresultsshowthattheshot-linespacinghasthegreatesteffectonthequalityofthegeometry,andtheincreaseofthereceiverlinespacingcanappropriatelyimprovethequalityofthegeometry,andtheincreaseofthenumberofreceivingtracescanimprovethegeometryquality.Thedifferentacquisitionparametershavedifferenteffectsontheimagingqualityofshallowanddeepevents.Themodelforwardandprestackdepthmigrationareusedtogenerateprestackdepthmigrationprofileswithdifferentacquisitionparameters.Theimagingresultsareconsistentwiththeabovecalculatedresults.Accordingtothedepthofthetargetlayer,thequalityfactorevaluationmethodisappliedtoguidethedesignofthegeometryandoptimizetheacquisitionparameterstoimprovetheimagingaccuracyofseismicdata.

简介：为解决地震前兆非标准仪器的统一接入问题，出一套完整的地震前兆数据采集适配软件设计方案，关键技术设计。本文对地震前兆台网设备异构性进行了分析，提并从采集、存储、传输3个主要软件模块描述了

简介：近30年来,地震采集的数据量持续增加.目前,在一艘地震勘探船上部署12条或更多的拖缆、在海底埋置成千上万个检波器或数以万道进行陆上采集已经常态化.数据体已经不仅由检波器密度来定义,而且还由每个位置上所记录的分量数来定义.方位角的覆盖范围已经从窄方位角发展到多方位角,再到全方位角.更多的检波器数量仅仅是数据爆炸的一个方面,在此期间,震源的研究工作也有所发展,采用的方案主有连续记录和各种同步震源.数据密度和野外工作量均在增加,并且持续增长,以满足业界对成像和解释的更高需求.