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Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China
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Jianping BAO,Cuishan ZHU,Zhifeng WANG
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Table 3 Parameters of sterane series in different marine crude oil samples from the Tarim Basin.
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| Well | Depth/m | Age | C27R/% | C28R/% | C29R/% | diaC27/reC27 | diaC29/reC29 | C21+22/C27-29/% | | YM101 | 5 912.50-5 917.00 | O | 29.4 | 26.3 | 44.3 | 0.25 | 0.35 | 9.92 | | YM201 | 5 844.00-5 888.00 | O | 34.1 | 21.9 | 44.1 | 0.31 | 0.45 | 11.59 | | TZ11 | 4 301.00-4 307.00 | S | 20.5 | 31.9 | 47.6 | 0.07 | 0.11 | 2.40 | | TZ30 | 4 997.00-5 026.00 | O | 19.9 | 33.4 | 46.7 | 0.03 | 0.10 | 0.55 | | TD2 | 4 561.93-5 040.00 | ?C | 26.7 | 29.8 | 43.5 | 0.14 | 0.17 | 5.66 |
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