欢迎来到天天文库
浏览记录
ID:36838705
大小:3.54 MB
页数:74页
时间:2019-05-16
《苏里格气田气井井筒压力分布规律及相态研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中文摘要/摘要苏里格气田苏6区气井为高气液比井,投产后大部分气井表现出压力和产量下降过快的特征,部分井出现井底积液,这对气井的正常生产会造成严重危害。要解决气井压力、产量下降过快和井底积液的问题,必须搞清楚井筒流动型态和压力分布规律。本文首先对苏里格气田苏6井区井筒压力和温度分布规律进行了研究,根据压力分布特征对气井进行了分类,部分井压力曲线特征表明井底存在积液。其次,对垂直管流态、压力预测方法进行了研究,应用修正的Hasan.Kabir和Zhmx方法编制了流态、压力预测程序,并对苏里格气田井筒压力进行了计算,判识了
2、井筒流态。最后,根据雷诺相似原理,进行了井筒两相流室内模拟实验,研究了垂直管流型和两相流流动特性,绘制了垂直管流型图。应用流型图对各类气井井筒流态进行了判识,对流型图和两种预测模型的判别结果进行了对比。综合以上研究结果得出结论,井筒压力分布规律以及流态的研究在现场应用中,为判识井筒积液,解决气井压力、产量下降过快问题提供了依据。关键词:两相流,苏里格气田,流动型态,压力预测模型,实验论文类型:应用基础研究本文得到西安石油大学与长庆油田公司合作科研项目《苏里格气田气井井筒流态研究》资助。英文摘要Subject:Stud
3、yonthewellborepressuredistributionruleandflowpatterninSuligeGasFieldSpeciality:Oil—GasWellName:GaoQinghua(SInstructor:LiTiantai(sABSTRACTThemajoritywellsofSu一6wellblockinSuligegasfieldarehighgas—to—liquidratio.Thecharacteristicsoftheproductionareasfollows:thepr
4、essureandoutputofproductionwelldeclinerapidly,andthereareliquidloadinginsomewells,whichwillseriouslyaffecttheproductionofgaswells.Inordertosolvetheproblemsofliquidloadingandtherapiddeclineofwellpressureandproduction,wehavetostudytheliquidflowpatternandpressured
5、istributioninthewellbore.StudyingthewellborepressureandtemperaturedistributionrulesinSuligegasfieldSu·6wellblockfirstly,thisarticlegivesaclassificationofthegaswellsinaccordancewiththecharacteristicsofpressuredistribution.Secondly,analyzingflowpatternandpressure
6、predictionmethodsintheverticalpipe,andtakingtheamendatoryHasan—KabirandZhmxapproachs,thisarticlemakesflowpattemandpressurepredictionpro铲ams,predictsthepressureandjudgestheflowpatteminwells.Finally,accordingtoReynoldssimilaritytheory,wehavedonethetwo.phaseflowwe
7、llboresimulationexperiments,studiedflowpattemandtwo—phaseflowcharacteristicsintheverticalpipe,mappedaverticalpipeflowpatternmap,andjudgedthewellboreflowpatternwiththeflowpatternmap,andcomparedpredictionmodelwithidentificationresultsoftheflowpatternmap.Basedonth
8、eaboveresults,wecansee:theapplicationoftheliquidflowpatternandpressuredistributioninthewellbore,providestheevidenceforsolvetheproblemsofliquidloadingandtherapiddeclineofwell
此文档下载收益归作者所有