Vol.46No.6Dec2022第46卷第6期2022年12月测井技术WELLLOGGINGTECHNOLOGY文章编号：1004–1338（2022）06–0768–06阵列声波测井评价储气库大直径套管固井质量傅永强，陈建波，刘可可，王天雨，麻超，刘似晏（中国石油集团测井有限公司辽河分公司，辽宁盘锦124010）摘要：经过多年探索中国地下储气建设进入高速发展阶段，为保证地下储气库井大排量高速注采，需采用大直径套管完井，理论和实际资料指出广泛应用的声幅-变密度测井在大直径套管固井质量评价中存在不足。为解决大直径套管固井质量评价问题，利用阵列声波资料计算套管波衰减率，在频域内统计套管波、地层波出现的频数以及慢速斯通利波时差变化等与固井质量密切相关的参数，综合评价地下储气库大直径井筒固井质量的Ⅰ、Ⅱ界面胶结程度和水泥充填率。该方法在双6地下储气库建设中取得较好的应用效果，为大直径套管固井质量评价提供了新方法。关键词：地下储气库；大直径套管；固井质量；声幅-变密度测井；阵列声波测井中图分类号：P631.84文献标识码：ADoi:10.16489/j.issn.1004–1338.2022.06.020CementingQualityEvaluationwithArrayAcousticLoggingforLargeDiameterCasingWellsinUndergroundGasStorageFUYongqiang,CHENJianbo,LIUKeke,WANGTianyu,MAChao,LIUSiyan(LiaoheBranch,ChinaNationalLoggingCorporation,Panjin,Liaoning124010,China)Abstract:Theconstructionofundergroundgasstorage(UGS)inChina,aftermanyyearsofexploration,hasenteredahighspeeddevelopmentstage.Inundergroundgasstorage,largediameterverticalorhorizontalwellsaredrilledforahighspeedandlargedisplacementinjectionandproduction.Boththetheoreticalandpracticaldatahaveshownthatthewidelyusedacousticamplitudeandvariabledensityloggingisinadequateinlargediametercasingcementingqualityevaluation.Inordertosolvetheproblemofevaluatingthecementingqualityoflarge-diametercasing,weusearrayacousticdatatocalculatetheattenuationrateofcasingwaveamplitude,theamountofcasingwaveandformationwaveinthefrequencydomain,andtheslownesschangeofStoneleywave,whichiscloselyrelatedtothecementingquality,tocomprehensivelyevaluatethecementingdegreeofinterfaceIandIIandthecementfillingrateoflarge-diametercasingcementingqualityofgasstorage.ThismethodappliessatisfatorilyinblockShuan...
