1、一、國外部分氣田天然氣和油田伴生氣組分    國外部分國家氣田的天然氣組成見表1-2-1、油田伴生氣的組成見表1-2-2。表1-2-1 國外部分國家氣田的天然氣組成(體積分數)   % 國家氣田ch4c2h6c3h8c4h10c5h12coco2n2h2s美國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委內瑞拉san joaquin76.79.796.693.

2、260.940.721.9荷蘭goningen81.42.90.370.140.040.050.814.26英國leman952.760.49o.20o.06o.150.041.3法國lacq69.42.90.9o.6o.30.41015.5俄羅斯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 國外部分國家油田伴生氣的平均組成(體積分數)    %國家ch

3、4c2h6c3h8c4h10c5h12c6+co2n2h2s印度尼西亞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阿聯酋55.6616.6311.655.412.811.05.50.550.79伊朗74.913.07.23.11.10.40.3利比亞66.819.49.13.51.52卡塔爾55.4913.299.695.633.821.07.0211.22.93阿爾及利亞83.447.02.10.870.360.215.83二、我國部分

4、氣田天然氣、凝析氣和油田伴生氣組成    我國部分油田伴生氣組成見表1-2-3，部分氣田和凝析氣田天然氣組成見表1-2-4，四川盆地主要氣田天然氣組成見表1-2-5。表1-2-3 我國部分油田伴生氣組成(體積分數)    %油田ch4c2h6c3h8i-c4h10n- c4h10i-c5h12n-c5h12c6c7+co2n2h2s大慶薩南76.665.936.591.023.451.541.210.950.262.28薩中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遼河興隆臺82.77.214.160.741.460.440.371.040.421.47遼中87.536.22.740.621.220.360.300.210.460.030.33華北任丘59.376.4810.029.213.811.341.404.581.79大港80.9410.24.840.871.060.340.410.34勝利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溫米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 英買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 紅旗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 提爾根提n1j84.697.072.110.590.480.234.65玉東2e、k82.287.662.060.290.460.720.361.015.09苛克亞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臺南q1+298.240.050.030.591.05澀北-1q1+299.240.060.020.68澀北-2q1+296.950.070.030.682.17鹽湖q1+295.170.280.033.44臺吉乃爾q1+298.440.140.010.201.11長慶o95.60.60.080.020.010.010.033.020.040.0264大港板橋o、p68.5511.226.421.6

11、32.030.940.831.825.021.000.45華北蘇橋o、p78.588.263.131.430.550.395.451.410.80   東海平湖e2p77.769.743.851.141.190.270.440.342.611.391.27東方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 四川盆地主要氣田天然氣組成(體積分數)

12、60;  %氣田氣藏ch4c2h6c3h8i-c4h10n-c4h10i-c5h12n-c5h12co2n2h2s新場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 洛帶j3p96.092.180.480.0880.0930.0300.0260.420.011 

13、;j2sn92.854.160.710.2530.1720.0580.0470.621.07 中壩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威遠z86.470.114.4378.100.879磨溪tr196.480.190.5461.021.767廟高寺tc2196.420.730,140.041.930.69傅家廟tc395.771.100.370.160.082.24宋家場p12439

14、7.171.020.20.471.090.01陽高寺p12397.811.050.170.440.48興隆場tc396.741.070.320.070.090.0750.0451.54八角場j1z4m88.196.332.480.360.640.70.261.04遂南th2487.926.482.460.540.60.40.211.38臥龍河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相國寺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羅家寨t1f75.290.110.0610.410.1810.49普光t1f76.170.100.068.260.1815.37毛壩t1f98.960.050.150.780.02河壩t1j297.920.22 1.020.120.65t1f396.340.420.020.170.03雙廟t1f98.530.440.020.150.850.008    從表中可發現我國天然氣(伴生氣)的組分特征：    (1) 油田伴生氣中的乙烷和乙烷以上的烴類含量較高，往往超過15%。    (2) 凝析氣田天然氣中乙烷和乙烷以上的烴類含量比油田伴生氣低一些，一般在5%10%。    (3) 氣田的天然氣組成中乙烷以上的烴類含量較少，即一般稱為干氣，但也有部分氣田的天然氣組成中乙