柱式氣液旋流分離器結(jié)構(gòu)設(shè)計(jì)1柱式氣液旋流分離器設(shè)計(jì)【摘要】平衡鉆井技術(shù)有利于防止鉆井液漏失、能及時(shí)發(fā)現(xiàn)和保護(hù)油氣層，并能提高機(jī)械鉆速等。但是由于欠平衡裝備價(jià)格昂貴，制約著這一技術(shù)的發(fā)展。鑒于這種現(xiàn)狀，自行設(shè)計(jì)了臺(tái)應(yīng)用于欠平衡鉆井的管柱式氣液旋流分離器。管柱式氣液旋流分離器是一種帶有傾斜切向入口及氣體、液體出口的垂直管。它依靠旋流離心力實(shí)現(xiàn)氣、液兩相分離，與傳統(tǒng)的重力式分離器相比，具有結(jié)構(gòu)緊湊、重量輕、投資節(jié)省成本等優(yōu)點(diǎn)，是代替?zhèn)鹘y(tǒng)容積式分離器的新型分離裝置。在氣液兩相旋流分析的基礎(chǔ)上，建立了預(yù)測分離性能的機(jī)理模型，該模型包括了入口分離模型、旋渦模型、氣泡及液滴軌跡模型；依據(jù)機(jī)理模型，提出了管柱式旋流分離器工藝設(shè)計(jì)技術(shù)指標(biāo)和工藝步驟.設(shè)計(jì)根據(jù)管柱式旋流分離器的機(jī)理模型以及設(shè)計(jì)工況，完成了管柱式旋流分離器的結(jié)構(gòu)設(shè)計(jì)、強(qiáng)度分析、理論校核、焊接工藝設(shè)計(jì)以及分離器內(nèi)氣液兩相流的數(shù)值模擬，為工程設(shè)計(jì)和理論設(shè)計(jì)提供一定的理論依據(jù)?！娟P(guān)鍵詞】欠平衡鉆井技術(shù)旋流分離器氣液兩相流動(dòng)分離機(jī)理模型設(shè)計(jì)2Gas-liqulidCylindricalCycloneAuthor:Wangmaohui(SchoolofMechanicalEngineering,YangtzeUniversity)Tutor:FengJin(SchoolofMechanicalEngineering,YangtzeUniversity)【Abstract】Thebalancedwelldrillingtechnologyisadvantageousinpreventinglossofcirculation,canpromptlydiscoverandprotecthydrocarbonzone,alsocanenhancethepenetrationrate.Buttheexpensiveunderbalanceequipmenthasrestrictedthistechnologyssdevelopment.Inviewofthesituation,Idesignedagas-liqulidcylindricalcycloneindependentlyforthebalanceunderdrilling.TheGLCCisonekindhasleansthebevellingtotheentranceandthegas,theliquidexportationhangstheascendingpipe.Iparedwiththetraditionalgravitytypeseparator,whichhasthecompactstructure,thelighterweight,thesmallerinvestmentandsoon.Itsanewdisengagingequipmentwhichreplacethetraditionalvolumetypeseparator.Onthebasisofthegas-liquidtwo-phasecycloneanalyses,hasestablishedtheforecastseparationperformancemechanismmodel,thismodelincludetheentranceseparationmodel,thewhirlpoolmodel,theairbubbleandthebubblepathmodel；Basedonthemechanismmodel,proposedthetubecolumntypecycloneseparatortechnologicaldesigntechnicalspecificationandthecraftstep.Thedesignbasistubecolumntypecycloneseparatormechanismmodelaswellasthedesignoperatingmode,hascompletedthetubecolumntypecycloneseparatorstructuraldesign,theintensityanalysis,thetheoryexamination,intheweldingtechnologicaldesignaswellasthenumericalsimulationofthegas-liquidtwophasefloeintheseparatorsimulations,providethecertaintheorybasisfortheengineeringdesignandthetheoreticaldesign.【Keywords】:Underbalanceddrillingtechnology，cycloneseparator,Gas-Liquidtwo-phaseflow,separationmechanismodel，Design柱式氣液旋流分離器結(jié)構(gòu)設(shè)計(jì)3目錄柱式氣液旋流分離器設(shè)計(jì).1緒論.2欠平衡鉆井技術(shù)的發(fā)展現(xiàn)狀和前景.51、設(shè)計(jì)背景.61.1選擇氣液旋流分離器的意義.61.2氣液旋流分離器的國內(nèi)外研究現(xiàn)狀.72、方案論證.82.1旋流式氣液分離方案的可行性.82.2旋流式分離器的結(jié)構(gòu)及工作原理.92.3旋流式分離器的優(yōu)缺點(diǎn).93、結(jié)構(gòu)分析及設(shè)計(jì).103.1入口設(shè)計(jì)分析.103.1.1入口管分析.103.1.2入口噴嘴分析.113.1.3雙入口分析.113.2主體結(jié)構(gòu)設(shè)計(jì)分析.113.2.1入口位置.113.2.2最佳外形比.123.2.3旋流體錐度.123.3出口管設(shè)計(jì)分析.124、柱式氣液旋流分離器參數(shù)設(shè)計(jì).124.1計(jì)算分離器直徑.124.2分離器的高度計(jì)算.134.2.1確定上半部分的高度.134.2.2計(jì)算入口分流區(qū)的高度.134.2.3計(jì)算旋渦區(qū)的高度.134.2.4氣泡軸向距離計(jì)算.144.3分離能力計(jì)算.15徑向方向上.15豎直方向上.164.4液面高度的確定.174.4.1氣室壓力p1的確定.174.4.2液面高度Z2的確定.184.5入口管的設(shè)計(jì)計(jì)算.204.6筒體強(qiáng)度設(shè)計(jì).214.6.1設(shè)計(jì)參數(shù).214.6.2筒體厚度設(shè)計(jì).224.7法蘭的校核計(jì)算.224.7.1排氣管法