国内外各地天然气组分

1、一、国外部分气田天然气和油田伴生气组分    国外部分国家气田的天然气组成见表1-2-1、油田伴生气的组成见表1-2-2。表1-2-1 国外部分国家气田的天然气组成(体积分数)   % 国家气田CH4C2H6C3H8C4H10C5H12COCO2N2H2S美国Louisiana92.183.331.480.79O00.050.91.02Texas57.696.244.462.440.560.116.07.515加拿大Alberta64.41.20.70.80.30.74.80.726.3委内瑞拉San Joaquin76.79.796.693.

2、260.940.721.9荷兰Goningen81.42.90.370.140.040.050.814.26英国Leman952.760.49O.20O.06O.150.041.3法国Lacq69.42.90.9O.6O.30.41015.5俄罗斯98.90.30.294.71.80.20.10.293.64.00.60.70.250.150.10.684.863.861.520.680.40.180.586.31.6592.35.242.070.740.310.135.30.853.07表1-2-2 国外部分国家油田伴生气的平均组成(体积分数)    %国家CH

3、4C2H6C3H8C4H10C5H12C6+CO2N2H2S印度尼西亚71.895.642.571.442.51.0914.510.35O.01沙特阿拉伯51.018.511.54.41.20.99.70.52.2科威特78.212.65.10.60.60.21.60.1阿联酋55.6616.6311.655.412.811.05.50.550.79伊朗74.913.07.23.11.10.40.3利比亚66.819.49.13.51.52卡塔尔55.4913.299.695.633.821.07.0211.22.93阿尔及利亚83.447.02.10.870.360.215.83二、我国部分

4、气田天然气、凝析气和油田伴生气组成    我国部分油田伴生气组成见表1-2-3，部分气田和凝析气田天然气组成见表1-2-4，四川盆地主要气田天然气组成见表1-2-5。表1-2-3 我国部分油田伴生气组成(体积分数)    %油田CH4C2H6C3H8i-C4H10n- C4H10i-C5H12n-C5H12C6C7+CO2N2H2S大庆萨南76.665.936.591.023.451.541.210.950.262.28萨中85.883.344.540.671.990.350.810.360.160.91.0杏南68.2610.581

5、1.25.541.910.660.360.200.55辽河兴隆台82.77.214.160.741.460.440.371.040.421.47辽中87.536.22.740.621.220.360.300.210.460.030.33华北任丘59.376.4810.029.213.811.341.404.581.79大港80.9410.24.840.871.060.340.410.34胜利87.853.783.740.812.310.820.650.060.030.530.02中原75.310.176.181.452.60.980.750.650.510.340.430.000379.178

6、.295.071.062.060.660.380.330.371.250.650.0003吐哈丘陵67.6113.5110.693.062.550.680.560.160.090.400.65温米76.129.286.772.821.650.840.300.220.070.261.59鄯善65.8112.8510.173.663.181.150.680.390.141.890.03克拉2E98.050.400.940.60 K98.270.530.040.010.010.010.550.60 迪那2N1j88.417.321.430.290.300.110.070.471.

7、34 E88.767.391.440.300.310.130.090.250.86 吐孜洛克N1j90.415.110.450.070.080.273.56 K94.773.940.380.070.060.070.64 伊南2J90.865.021.580.310.350.120.150.341.28 英买7E86.384.802.010.320.410.080.08  0.245.67 K90.574.740.090.090.090.020.02  0.073.73 牙哈N1j84.

8、356.991.980.300.500.140.150.265.22 E83.817.082.640.520.570.140.12  0.244.86 K81.407.762.840.581.010.350.46  0.864.30 红旗1N1j76.6110.124.281.081.420.520.460.125.28E71.4311.115.170.510.570.110.072.828.21羊塔克E89.227.011.490.260.250.010.01  0.051.70 K92.35

9、4.960.970.280.210.080.04  0.151.06 提尔根提N1j84.697.072.110.590.480.234.65玉东2E、K82.287.662.060.290.460.720.361.015.09苛克亚N179.889.422.651.441.210.290.763.990.00吉拉克T87.193.531.620.310.220.040.070.226.81C94.750.560.170.020.040.020.020.443.98吉南4T70.3411.0412.021.110.720.360.660.002.76塔中6C85.

10、611.550.590.120.280.080.062.169.55和田河C77.400.690.0912.209.63O78.081.810.540.090.220.060.092.3916.72台南Q1+298.240.050.030.591.05涩北-1Q1+299.240.060.020.68涩北-2Q1+296.950.070.030.682.17盐湖Q1+295.170.280.033.44台吉乃尔Q1+298.440.140.010.201.11长庆O95.60.60.080.020.010.010.033.020.040.0264大港板桥O、P68.5511.226.421.6

11、32.030.940.831.825.021.000.45华北苏桥O、P78.588.263.131.430.550.395.451.410.80   东海平湖E2P77.769.743.851.141.190.270.440.342.611.391.27东方1-1Nyth76.411.770.29     1.2319.73 崖13-1E3l84.511.290.280.050.060.020.020.040.0913.140.500.0046表1-2-5 四川盆地主要气田天然气组成(体积分数)

12、60;  %气田气藏CH4C2H6C3H8i-C4H10n-C4H10i-C5H12n-C5H12CO2N2H2S新场J3P97.321.1980.4600.1450.165O.0030.0500.020.61J2s95.992.540.540.120.1160.0360.0220.320.28T3x493.563.300.460.080.07O.020.0l0.761.37T3x297.370.830.090.010.01O.0030.0011.150.53 洛带J3P96.092.180.480.0880.0930.0300.0260.420.011 

13、;J2sn92.854.160.710.2530.1720.0580.0470.621.07 中坝Tx291.05.81.590.130.350.10.280.470.19 Tr384.842.050.470.2810.1024.131.716.32 自流井P13297.120.560.971.1351.060.02威远Z86.470.114.4378.100.879磨溪Tr196.480.190.5461.021.767庙高寺Tc2196.420.730,140.041.930.69傅家庙Tc395.771.100.370.160.082.24宋家场P12439

14、7.171.020.20.471.090.01阳高寺P12397.811.050.170.440.48兴隆场Tc396.741.070.320.070.090.0750.0451.54八角场J1z4m88.196.332.480.360.640.70.261.04遂南Th2487.926.482.460.540.60.40.211.38卧龙河Tc3493.720.880.210.050.540.494.0Tc3295.970.550.100.010.020.020.020.351.31.52P2164.910.350.090.0470.0460.0170.0161.650.6931.95C97

15、.530.430.030.0040.0061.010.730.26相国寺C97.620.920.070.161.130.16大天池C95.971.230.230.0040.0061.711.870.26渡口河T1f84.680.070.035.440.718.77罗家寨T1f75.290.110.0610.410.1810.49普光T1f76.170.100.068.260.1815.37毛坝T1f98.960.050.150.780.02河坝T1j297.920.22 1.020.120.65T1f396.340.420.020.170.03双庙T1f98.530.440.020.

16、150.850.008    从表中可发现我国天然气(伴生气)的组分特征：    (1) 油田伴生气中的乙烷和乙烷以上的烃类含量较高，往往超过15%。    (2) 凝析气田天然气中乙烷和乙烷以上的烃类含量比油田伴生气低一些，一般在5%10%。    (3) 气田的天然气组成中乙烷以上的烃类含量较少，即一般称为干气，但也有部分气田的天然气组成中乙烷以上的烃类含量稍高一些，一般均小于5%。    (4) 在天然气(伴生气)中N2、CO2、H2S等的含量参差不齐，无任何规律。(5) 四川盆地海相气藏大部分为含硫天然气藏，中国石油西南油气田