泡沫钻井与井筒多相流动试验装置研制.docx

2015年第44卷第11期第56页石油矿场机

2015年第44卷第11期第56页

2015,44(11):56-58OILFIELDEQUIPMENT

2015,44(11):56-58

文章编号：1001-3482(2015)11-0056-03

泡沫钻井与井筒多相流动试验装置研制

刘宗恩，韩兵奇，高旺熙

(中国石油大学(华东)机电装备教学实习总厂，山东东营257061)

摘要：泡沫钻井在欠平衡钻井工艺中占有重要地位，能解决低压、低渗、易漏地层的钻井难题。研制了泡沫钻井与井筒多相流动试验装置，该装置由井筒模拟系统、起升装置、供液系统、供气系统、采集系统等组成。模拟井筒采用透明有机玻璃材料，实现了试验过程可视化。对装置流体进行实时压力、流量检测，进行泡沫钻井试验定性和定量分析。试验表明，该装置能清晰观察泡沫携带钻屑及钻铤处流体对井壁的冲蚀过程，实时检测钻井液的黏度、流速、密度、剪切力等参数，定量分析钻井液对钻进过程的影响特性。

关键词：泡沫钻井；多相流；试验装置

中图分类号：TE92文献标识码：Bdoi:10.3969/j.issn.1001-3482.2015.11.013

DevelopmentofExperimentalUnitaboutFoamDrillingandMultiphaseFlowinginWell

LIUZonen,HANBingqi,GAOWangxi

(MechanicalElectricalPlantFactory,ChinaUniversityofPetroleum(Huadong),Dongying257061,China)

Abstract:Itisimportantforfoamdrillingtodrillindrillingtechnology,anditcansolveproblemssuchasdrillinginlow-pressure,lowpermeability,leakylayer,anditmustberesearcheddeeply.Therefore,anexperimentalunitaboutfoamdrillingandmultiphaseflowinginwellwasdevel-oped.Itismadeupofsimulationwellboresystem,hoistingunits,liquidsystem,gassystem,dataacquisitionsystem,etc.ThetransparentPolymethylmethacrylatewasusedinsimulationwell-bore,andvisualizationwasachieved.Thepressureandflowdischargeofthefluidinunitswasmo-nitoredinline,andthequalitativeandquantitativeanalysiswasachieved.Testsshowedthatitwasclearlytoseethecourseofthefoamdrillingfluidcarryingcuttingsandthefluiderodingwell-boreindrillcollar,andtheparametersofthedrillingfluidhadbeenmonitoredinline,suchasvis-cosity,flowrate,density,shearingforce,etc.andcouldanalysistheperformanceofdrillingfluidinfluencingondrillingquantitatively.

Keywords:foamdrilling;multiphaseflowing;testingequipment

泡沫钻井液具有密度低、黏度大、携砂能力强等特点，能有效解决低压、低渗、易漏地层的钻井难题，减少钻井液对地层的伤害，提高油气井采收率，在