Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China

Jianping BAO,Cuishan ZHU,Zhifeng WANG

Table 2 Parameters of terpane compounds in different marine crude oils from the Tarim Basin.

Well Depth/m Age Ts/Tm Gammacerane index C24TE/C26T C29H/C30H C23T/C30H YM101 5912.5-5917.0 O 0.44 0.13 0.93 0.83 0.49 YM201 5844.0-5888.0 O 0.49 0.09 0.96 0.85 0.51 TZ11 4301.0-4307.0 S 0.41 0.36 0.64 0.43 0.08 TZ30 4997.0-5026.0 O 0.39 0.38 0.53 0.38 0.02 TD2 4561.93-5040.00 ?C 0.58 0.33 0.58 0.43 0.12