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:摘要:根据数字化管道的发展趋势,结合数字化管道对施工数据的相关要求,通过中石油管道项目介绍了在目前阶段项目施工中数字化管道数据采集的内容,并提出管理中存在的问题及建议。
简介:【摘要】 大数据开启了一个大规模生产、分享和应用数据的时代,它给技术和商业带来了巨大的变化。麦肯锡研究表明,在医疗、零售和制造业领域,大数据每年可以提高劳动生产率 0.5-1 个百分点。如何保证数据采集的有效性,正确合理的大数据采集与治理给予其重要支撑 .
简介:摘要:针对高压柜装配线生产过程中工时长短不一,产线不均衡等现象,提出以生产均衡化和平准化的思想对该产线进行工序同期化研究,采用分支定界法进行各工位工序内容的重新分配,降低了产线工位数,提高了产线平衡率。