分層流管道黏壁溫度計(jì)算模型的建立與驗(yàn)證

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Establishment and Verification of the Wall Sticking Occurrence Temperature Calculation Modelof Stratified FlowPipeline

CHENG Xianwen1，XIONG Jianhua2，HUANG Qiyu1*， TIAN Jiaxing2，YULe1

1BeijingKeyboatoyUbanldastrbuiooginUesityfrole，aggig2 2.Jiangsu Oilfield Branch Office，SINOPEC，Yangzhou，Jiangsu 2250o9，China

Abstract：Low temperature transportation technologycaneffectivelyreduceenergyand economic lossforhigh-watercut gatheringandtransportationpipelines.However，withthepopularizationofgasflooding，thefluidsinmanygatheringpipelines areinthestateofthre-phaseofoil，gasandwater.Inordertoexploretheefectofgasontheadhesionofgeledoilonthe wall， aself-developed presure-bearingstirringtank isusedtomeasure teadhesionmassofgelldoilonthewallunderdifferent conditions.Itisfoundthatthegasdisoledincrudeilcansignificantlyeducetheadhesionofelldoil，whilethetempeature does notchangewithcorresponding massurge;subsequently，agas injectiontest iscarredoutonthehigh watercutgathering andtransportationpipelineonsite，anditshows that withtheincreaseofthegas-oilratiointhepipeline，theminimum inlet temperature decreases from 29°C to 26°C ，indicating that the presence of gas improves the fluidityof crude oil; finally，based on the theoretical basis of“wall shear stress=yield stress × coefficient”，a stick-wall temperature calculation model that can be usedinstratifiedflowgatheringandtransportationpipelinesisestablished，ndtheverificationshowsthatthemodelhasa good calculation effect.

Keywords：crudeoilwithdissolvedgas;low temperaturegatheringand transportation;wallstickingoccurrence temperature; gas injection test; stratified flow

網(wǎng)絡(luò)出版地址：http：//kns.cnki.net/kcms/detail/51.1718.TE.20240522.1046.008.html

引言

對(duì)于高含水油田礦場(chǎng)來(lái)說(shuō)，其集輸管道內(nèi)的綜合含水率可超過(guò) 85%[1] ，將低溫集輸技術(shù)運(yùn)用到高含水管道，可極大地減少能源消耗，降低經(jīng)濟(jì)投入，同時(shí)減少溫室氣體的排放，保護(hù)環(huán)境。（剩余24350字）