渤海湾盆地东营凹陷沉积环境和古生产力对优质烃源岩形成的控制—

渤海湾盆地东营凹陷沉积环境和古生产力对优质烃源岩形成的控制——以牛庄洼陷沙河街组为例

段玮, 曾翔, 蔡进功, 李政, 王长轩, 林茹

Control of sedimentary environment and paleoproductivity on the formation of high-quality hydrocarbon source rocks in Dongying Sag, Bohai Bay Basin: Case study of the Shahejie Formation in Niuzhuang sag

Wei DUAN, Xiang ZENG, Jingong CAI, Zheng LI, Changxuan WANG, Ru LIN

表1 东营凹陷沙河街组各层段有机质热解参数数据

Table 1 Pyrolysis parameters of organic matter of every member in Shahejie Formation, Dongying Sag

层位	Es₃^z	Es₃^x	Es₄^cs	Es₄^cx
样品数量	164	81	428	66
TOC/%	$\frac{0.40 ~ 4.36}{1.60}$	$\frac{1.53 ~ 13.49}{4.26}$	$\frac{0.66 ~ 13.04}{3.43}$	$\frac{0.28 ~ 6.84}{2.13}$
I_H/（mg/g）	$\frac{53 ~ 586}{266.92}$	$\frac{135 ~ 733}{523.65}$	$\frac{119 ~ 682}{449.33}$	$\frac{31 ~ 337}{192.74}$
I_O/（mg/g）	$\frac{10 ~ 367}{62.10}$	$\frac{6 ~ 83}{27.17}$	$\frac{5 ~ 314}{48.14}$	$\frac{18 ~ 471}{141.58}$
T_max/℃	$\frac{388 ~ 446}{436.30}$	$\frac{430 ~ 523}{440.77}$	$\frac{409 ~ 449}{439.17}$	$\frac{371 ~ 442}{425.29}$