综合技术伍志坚:管道穿越游荡性河流技术分析油气田地面工程https://yqtd.cbpt.cnki.net管道穿越游荡性河流技术分析伍志坚中国石油塔里木油田公司摘要:塔里木河是我国最大的游荡性河流,河水泥沙含量大,水势游荡、河势不稳,河床变化多样,岸坡变形大。以某油气田原油外输管道工程穿跨越塔里木河为例,根据河流地形地貌、工程水文地质、宏观线路走向和过河方案的技术经济指标分析,经过复杂的工程环境、地理环境、水文环境以及对珍惜胡杨林和珍惜野生动物与鱼类保护多场景对比,并对穿跨越工程的选址和穿跨越方案进行了详细的技术论证。为实现建设项目的可行性、建设目标的可达到性,从工期进度、成本投资、安全可靠和质量可控等方面考虑,确定最为合理的油气管道穿跨越游荡性河流的选址和穿跨越结构形式。项目建设结果证明采用定向钻穿越塔里木河,在穿越平面轴线、纵断面穿越地层的选择是安全可靠的,既保证施工、运行安全,又节省大量的工程投资,为类似工程通过游荡性河流积累了宝贵的经验。关键词:穿跨越方案;原油管道;塔里木河;游荡性TechnicalAnalysisofOilPipelineCrossingWanderingRiverWUZhijianTarimOilfieldCompany,CNPCAbstract:TheTarimRiveristhelargestwanderingriverinChina,withhighsedimentcontent,fluctuatingandunstablewaterflow,diverseriverbedchanges,andsignificantbankslopedeformation.TakingthecrudeoilexportpipelineprojectofacertainoilandgasfieldcrossingtheTarimRiverasanexample,basedontheanalysisoftheriverterrain,engineeringhydrogeology,macroscopicroutedi-rection,andtechnicalandeconomicindicatorsoftherivercrossingplan,adetailedtechnicalanalysisisconductedonthesiteselectionandcrossingplanofthecrossingprojectaftercomparingmultiplescenari-osincomplexengineeringenvironments,geographicalenvironments,hydrologicalenvironments,aswellastheprotectionofthecherishingpopuluseuphraticaforests,wildlifeandfish.Toachievethefea-sibilityofconstructionprojects,theaccessibilityofconstructiongoals,themostreasonablesiteselec-tionandstructuralformforoilandgaspipelinescrossingwanderingriversaredeterminedbyconsideringfactorssuchasprojectschedule,costinvestment,safetyandreliability,andcontrollablequality.Theprojectconstructionresultshav...