第一章储层流体的物理性质二.计算题1.(1)该天然气的视分子量M=18.39该天然气的比重γg=0.634(2)1mol该天然气在此温度压力下所占体积:V≈2.76×10-4(m3)2.(1)m≈69.73×103(g)(2)ρ≈0.0180×106(g/m3)=0.0180(g/cm3)3.Z=0.864.Bg=0.005235.Ng=21048.85×104(m3)6.(1)Cg=0.125(1/Mpa)(2)Cg=0.0335(1/Mpa)7.Z=0.848.Vg地面=26.273(标准米3)9.ρg=0.2333(g/cm3)10.ρg=0.249(g/cm3)11.Ppc=3.87344(MPa)Pc1﹥Ppc﹥Pc212.(1)Z≈0.82(2)Bg=0.0103(3)Vg地下=103(m3)(4)Cg=0.1364(1/Mpa)(5)μg=0.0138(mpa﹒s)13.RsCO2=65(标准米3/米3)RsCH4=19(标准米3/米3)RsN2=4.4(标准米3/米3)14.Rs=106.86(标准米3/米3)15.(1)Rsi=100(标准米3/米3)(2)Pb=20(MPa)(3)Rs=60(标准米3/米3)析出气ΔRs=40(标准米3/米3)16.V/Vb=0.976217.γo=0.704(g/cm3)18.γo=0.675(g/cm3)19.Bo=1.29520.Bt=1.28321.Rs=71.3(Nm3/m3)Bo=1.317Bg=0.00785Bt=1.457Z=0.85422.P=20.684Mpa下:Co=1.422×10—3(1/Mpa)Bo=1.383P=17.237Mpa下:Bo=1.390Bt=1.390Rs=89.068(Nm3/m3)P=13.790Mpa下:Bo=1.315Bt=1.458Rs=71.186(Nm3/m3)Bg=7.962×10—3Z=0.87823.可采出油的地面体积No=32400(m3)24.)/1(10034.32C4Mpa若只有气体及束缚水)/1(10603.169Cg4Mpa26.Pb=23.324(Mpa)27.Pd2=18.231(Mpa)28.该地层为CaCl2水型29.本题可编程上机计算,结果如下2084998.014696.1123.64461gBPP30.经编程上机运算,有(1)Y=2.039492+0.09387455P(2)33005.1Bt31.经编程上机运算,得整理后的相对体积系数P(MPa)oBP(MPa)oB31.6400.9604117.5780.9835928.1240.9652814.0620.9909324.6090.9707610.5470.9988921.0930.9768710.1741.000035.(1)We1=3.0267×105(m3)(2)We1=6.5392×105(m3)(3)Np=6.85462×105(m3)36.原油的地址储量N=3.452×108(m3)在P=11.032MPa下:We=0.121×108(m3)在P=8.963MPa下:We=0.453×108(m3)在P=6.895MPa下:累积采油量Np=0.999×108(m3)第二章储层流体的物理性质二.计算题1(1)Vp=2.356(cm3)(2)=16.319%(3)f=2.2191(g/cm3)2(1)K=66.667×10-3(μm2)(2)Q=0.0444(cm3/s)3(1)KL=16.956(μm2)(2)Kg=17.586(μm2)对比计算结果,对同一岩样,气测渗透率大于液测渗透率。4K=4.575(μm2)5Q=804.90(m3/D)6K=3×10-3(μm2)7K=0.761μm28Pe=14.527Mpa9.(1)Φ=28.58%(2)K=0.248(×10-3μm2)10.(1)修井前2310066.250mK(2)修井后2310402.70mK11.2310012.125mK12.2310438mK13.(1)%33.21231067.276mK(2)%7.21(3)2310623.263mK14.(1)231080mK(2)2310375.134mK(3)2310900.29mK(4)2310375.134mK15.(1)裂缝岩石的渗透率2303084mK(2)圆形孔道岩石的渗透率21413mK16.(1)Kr8(2)mrnrnrnrnr42222114224111017.(1)23108.1mK(2)mr3.17(3)32/064.0cmcmS18.(1)5268.0wS(2)4354.0oS(3)0378.0gS19.(1)436.0oS392.0wS(2)073.0gS20.(1)3042.0wS(2)6885.0oS(3)=0.3618821.(1)吨81064.2N(2)%42.4322.(1)C=16.056MPa/1104-(2)3m728.13弹N23.(1)N=7.1731110m(2)31110596539.5mNp第三章储层岩石的渗流特性二:计算题1.解:2=0.1092W附(J/m)2.解:(1)毛管插在水中11.287()hcm212.867()hcm3128.667()hcm(2)毛管插在油水体系中1234.486()44.865()448.647()hcmhcmhcm(3)毛管插在油中1230.579()5.970()57.898()hcmhcmhcm对比这三题的结果可见:(1)流体一定,毛管半径越小,则液面上升高度越大;(2)毛管半径一定,owwohhh>>。3.解:水滴要运动时外加压差=232()PPa△4.解:气泡通过窄口所引起的压力差)(MPa101896.4P45.解:211hgrR6.解:2cos11hgrR7.解:润湿指数0.812视接触角arccos0.81235.790<因而岩样亲水。8.解:22220.01875(m)0.0075(m)0.02625(m)0.067(m)/0.01875/0.0670.280/0.0075/0.0670.112/0.40owowroorwwrwrokkkkkkkkkkkkμμμ<μ9解:(1)323232010(m)12.810(m)owkkμμ(2)0127.0krw3168.0kro(3)32113211/32010/250.0128(m)/12.810/0.80.016(m)0.016/0.01281.25oooμμμμ10解:211211/0.06/0.0154(m)/0.25/1.250.2(m)/4/0.220gggooogoKmPasKmPasμμμμ11.解:(1)当岩样为非湿相饱和50%时:0.0595()cowPMPa此时相应的油柱高度:h=14.886(m)(2)引起水的驱替所需要的油柱高度为:h=3.192m12.解:50cP所对应的油柱高度为5028.846()hm13.解:TP所对应的油柱高度为:h=21.749(m)14.解:所求换算系数为39.55m/Mpa。15解:油水过渡带厚度为:h1-h2=26.66(m)油水界面位置:-3180+3=-3177(m)16.解:欲使半径为0.005cm的液滴通过半径为0.002cm的狭窄通道时,所需的压差为:=1200()PPa△压力梯度:/=12()MPaPLm△17.解:气泡通过此孔隙时需要的压差为:0.04()PMPa△此压差相应的油柱高度为h=4.71(m)18.解:(1)该剖面的含水饱和度为32wS%(2)绘图略19.解:过渡带顶部到自由水面的相对深度h1=13.86(m)油水界面到自由水面的深度h2=0.62(m)20.解:Rp=980.99(Nm3/m3)21(1)PT=0.008MPa;PC50=0.015MPa;SWi=20%22(1)PT1=0.013MPa;PT2=0.03MPa;PC50(1)=0.25MPa;PC50(2)=3.5MPa;Swmin(1)=7.83%;Swmin(2)=19.35%.r1=4.74um;r2=0.53um.若以r50为平均孔隙半径,则;r1=2.45um;r2=0.09um.(3)a.rmax(1)=49.03um;rmax(2)=24.52um.b.rmax(1)=56.57um;rmax(2)=24.51um.23PT=0.1MPa;Pc50=13MPa;Swmin=20%;r50=0.028um。12.0r(um)242444.029(2)由图可见:平衡饱和度约为0.59;平衡相对渗透率约为0.048.30(1)518.542rwroKKe-11.513Sw(2)Sw0.30.40.50.60.70.80.9fw0.1040.2690.5380.7870.9210.9740.991wSfw1.0772.2662.8611.9320.8380.2960.09731.(3)a=1249.1,b=16.093(4)Kro=0.44,Krw=0.11地下fw=0.556,地面fw=0.64132.(1)59.8%,0.2(3)Soi=0.75,Sor=0.05,max=93.3%(4)a=2517.82,b=13.076.