Composition and origin of molecular compounds in the condensate oils of the Dabei gas field, Tarim Basin, NW China

ZHU Guangyou,CHI Linxian,ZHANG Zhiyao,LI Tingting,YANG Haijun,CHEN Weiyan,ZHAO Kun,YAN Huihui

Table 2 Quantitation of adamantanes in five condensate oil samples from Dabei gas field.

Well Adamantanes compound/10-6 Adaman- tanes 1-Methyl- adaman- tanes 2-Methyl- adaman- tanes 1-Ethyl- adaman- tanes 2-Ethyl- adaman- tanes 1,3- Dimethyl- adaman- tanes 1,4- Dimethyl- Adamantanes (cis) 1,4-Dimethyl- Adamantanes (trans) 1,2- Dimethyl- adamantanes 1-Ethyl-3- methyl- adamantanes DB208 432.03 1 541.47 663.54 294.01 319.30 1 156.40 594.60 564.65 569.49 392.79 DB207 463.06 1 042.25 638.47 274.41 290.07 1 075.52 576.78 559.12 549.47 365.44 DB101-1 326.44 2 054.12 760.29 298.92 324.44 1 603.98 604.10 626.84 571.31 349.01 DB101-5 541.00 1 526.50 1 105.50 412.50 410.60 1 697.37 1 002.76 908.30 948.82 516.35 DB202 433.94 1 497.23 729.31 379.45 392.89 1 533.99 846.20 774.34 844.63 504.71 Well Adamantanes compound/10-6 1,3,5- Trimethyl- adaman- tanes 1,3,6- Trimethyl- adaman- tanes 1,3,4- Trimethyl- adaman- tanes (cis) 1,3,4- Trimethyl- adaman- tanes (trans) 1-Ethyl-3,5- dimethyl- adaman- tanes 1,3,5,7- Tetramethyl- adamantanes 1,2,5,7- Tetramethyl- adamantanes 1,2,3,5,7- Pentamethyl- adamantanes Diadamen- tane 4-Methyl- diadamentane DB208 644.95 434.07 414.74 415.77 207.01 81.41 317.87 59.31 118.48 180.40 DB207 592.60 416.54 381.35 396.98 183.55 75.10 292.74 54.46 102.70 158.10 DB101-1 553.03 486.24 430.86 435.60 204.29 65.54 333.24 54.82 93.17 142.84 DB101-5 786.52 651.99 625.42 599.74 252.16 87.18 406.81 62.80 94.40 143.72 DB202 806.89 585.29 582.12 566.03 259.39 100.76 407.37 68.58 129.88 206.27 Well Adamantanes compound/10-6 1-Methyl- diadamen- tane 3-Methyl- diadamen- tane 4,9- Dimethyl- diadamen- tane 1,4+2,4- Dimethyl- diadamen- tane 4,8- Dimethyl- diadamentane 3,4-Dimethyl- diadamentane 1,4,9-Trimethyl- diadamentane Triadamantane 9-Methyl- triadamantane 5-Methyl- triadamantane DB208 115.28 73.28 50.97 62.63 66.61 71.60 42.71 5.88 7.81 2.69 DB207 94.86 53.90 41.99 51.79 51.82 56.76 34.39 5.58 2.44 DB101-1 94.29 62.25 37.07 40.08 55.70 31.31 DB101-5 91.90 32.29 27.19 31.38 22.51 37.56 21.54 DB202 127.47 76.22 42.57 50.12 63.78 73.45 37.05