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2 东营凹陷沙河街组部分元素测试数据

Table 2 Partial element test data of Shahejie Formation in Dongying Sag

层位	Es₃^z	Es₃^x	Es₄^cs	Es₄^cx
样品数量	159	78	413	59
Al/%	$\frac{4.28 ~ 11.19}{8.77}$	$\frac{2.97 ~ 9.81}{5.82}$	$\frac{0.56 ~ 10.45}{4.94}$	$\frac{0.28 ~ 10.24}{4.82}$
K/%	$\frac{0.86 ~ 2.72}{2.00}$	$\frac{0.58 ~ 2.27}{1.18}$	$\frac{0.11 ~ 2.50}{1.12}$	$\frac{0.07 ~ 3.36}{1.49}$
P/%	$\frac{0.04 ~ 0.18}{0.08}$	$\frac{0.05 ~ 0.18}{0.08}$	$\frac{0.03 ~ 0.61}{0.12}$	$\frac{0.02 ~ 0.23}{0.08}$
V/10^-6	$\frac{71.64 ~ 148.19}{104.85}$	$\frac{57.71 ~ 175.03}{99.23}$	$\frac{26.02 ~ 187.29}{97.42}$	$\frac{11.59 ~ 139.00}{68.42}$
Ni/10^-6	$\frac{19.16 ~ 63.00}{38.60}$	$\frac{21.81 ~ 105.68}{38.92}$	$\frac{10.38 ~ 133.39}{37.97}$	$\frac{6.41 ~ 81.01}{27.73}$
Rb/10^-6	$\frac{47.95 ~ 143.49}{105.59}$	$\frac{33.82 ~ 149.37}{76.38}$	$\frac{6.69 ~ 151.52}{68.88}$	$\frac{3.09 ~ 146.35}{68.08}$
Sr/10^-6	$\frac{227.14 ~ 903.56}{514.01}$	$\frac{443.92 ~ 5 032.17}{1565.38}$	$\frac{432.20 ~ 10 609.90}{1956.63}$	$\frac{406.02 ~ 17 888.29}{2577.12}$
Zr/10^-6	$\frac{89.73 ~ 256.24}{139.19}$	$\frac{46.34 ~ 183.25}{87.15}$	$\frac{12.89 ~ 130.03}{70.98}$	$\frac{13.59 ~ 145.60}{72.56}$
Ba/10^-6	$\frac{565.02 ~ 1 299.78}{781.98}$	$\frac{497.05 ~ 1 112.24}{680.64}$	$\frac{101.57 ~ 2 105.18}{566.60}$	$\frac{50.09 ~ 1 714.38}{438.60}$
La/10^-6	$\frac{27.16 ~ 54.25}{39.64}$	$\frac{14.11 ~ 48.10}{28.54}$	$\frac{4.53 ~ 55.22}{25.28}$	$\frac{3.16 ~ 45.33}{22.78}$
Ce/10^-6	$\frac{53.40 ~ 111.33}{79.80}$	$\frac{29.05 ~ 95.58}{57.30}$	$\frac{8.59 ~ 110.54}{50.26}$	$\frac{6.49 ~ 93.93}{46.35}$
B/10^-6	$\frac{4.24 ~ 53.70}{21.75}$	$\frac{0.97 ~ 67.47}{19.44}$	$\frac{1.85 ~ 193.59}{25.67}$	$\frac{0.03 ~ 180.14}{46.37}$
Ga/10^-6	$\frac{38.00 ~ 74.60}{50.21}$	$\frac{25.50 ~ 56.58}{37.03}$	$\frac{5.97 ~ 71.56}{28.67}$	$\frac{2.86 ~ 51.36}{23.74}$