控压钻井作业中多相流环空压力的计算

2010－12－252011－05－181970－。[e-mail]。81080013904699398。123341234．．20113431－3、、。3%。TE249ADOI10．3969/J．ISSN．1006－768X．2011．03．01。。、。3．0×1011m3。1～3。、2～5。3①②③。1～5。1．1．1tρmξ+zρmυmξ=01tρgλ+zρgυgλ=Qg2tρsδ+zρsυsδ=Qs31．2tρmυmξ+ρgυgλ+ρsυsδ+zρmυ2mξ+ρgυgλ+ρsυsδ+p()z+p()zf+ρmξ+ρgλ+ρsδg=04p—MPaξ—δ—λ—Qs—L/sQg—L/s。1．3υz=υm+υg+υs5·1·343Vol．34No．3DRILLING＆PRODUCTIONTECHNOLOGY2．Beggs－Brill。、、。2．1、dtdhdQs=πDe2υt4dt6p()z1=ρzg=ρmξ+ρs－ρmδ－ρm－ρgλg=072．2。1．276～1．2891．2825p()z2=1.2825η0.2Q1.8zp0.8zDh－Dp3Dh+Dp1.882．3。p()z3=ρzυzddzξMzAρ()g+ddzδMzAρ()[m+ddzλMzAρ()]s9p()z3=ρzυzυgρgdpdz10、1．3000m4600m1．0520m3/min1．5m3/min1．06g/cm3。0．1～3．0MPa1500m。1。0～0．20．2～0．40．4～0．60．6～0．70．7。。2．2。、、。2。。①p=pp－ρzgH－Δp11p=pp－ρzgH12Δp—MPa。②0．04kg/m3·2·DRILLING＆PRODUCTIONTECHNOLOGY20115May2011Δph=0.04gH13p=pp－ρzgH－Δp+Δph14p=pp－ρzgH+Δph15pp—MPaΔph—MPa。1/m/MPa/MPa/MPa3378341935303600366537823900401433．5334．0334．8335．5736．1541．5242．1743．2833．1833．4834．4734．6435．2740．4241．6542．330．800．850．950．950．951．051．001．101．04%1．62%1．18%2．61%2．43%2．64%1．23%2．19%、4430m4414m、、、、0．94～1．05。3%1。、13%。2、。1．MPDJ．200730262－66．2．J．2007351168－72．3．J．200729213－17．4ReitsmaDvanRietE．UtilizinganAutomatedAnnularPressureControlSystemforManagedPressureDrillinginMatureOffshoreOilfieldsJSPE9664620055MatthewDM．ManagedPressureDrillingTechniquesandToolsD．TexasTexasA＆MUniversity2006．6．1J．2009323114－115117．檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴檴殜殜殜殜《》20114CO2BHJ3－DH2S、CO2Cl－L360QCS37AT20·3·343Vol．34No．3DRILLING＆PRODUCTIONTECHNOLOGY