Diagenetic Fluid and Its Impact on Sandstone Reservoirs in the Southern Boxing Sag, Dongying Depression, Bohai Bay Basin, China

Table 6

The REE data of carbonate cement and mudstone (μg/g).

REE	F25: 2901.5 m ()			F25: 2998.5 m ()				F104: 3039.2 m ()				F104: 3059.4 m ()			F1: mudstone ()
La	20.19	3.10	36.07	2.83	2.20	6.37	6.81	8.14	0.76	6.99	5.28	6.02	9.19	28.11	49.30	52.30	48.10	55.60
Ce	34.74	5.03	60.58	6.43	1.73	17.27	19.55	13.30	0.95	7.30	6.12	13.19	4.92	39.12	90.20	99.10	84.00	94.90
Pr	4.43	0.78	4.93	0.80	0.21	2.45	2.77	1.45	0.06	0.73	0.51	2.00	0.33	3.60	10.80	11.40	9.22	11.10
Nd	17.78	3.45	13.68	4.39	1.05	10.41	13.49	5.31	0.20	2.50	2.20	9.90	1.93	11.79	40.80	45.80	33.40	42.80
Sm	3.79	0.67	4.50	1.14	0.43	2.90	4.12	0.59	0.05	0.17	0.44	2.97	0.47	1.38	6.93	7.55	4.66	6.30
Eu	1.41	0.12	1.12	0.38	0.26	0.54	1.19	0.43	0.00	0.24	0.10	0.91	0.18	0.39	1.34	1.39	0.85	1.00
Gd	4.72	1.05	4.11	1.01	0.41	1.73	3.75	0.98	0.04	0.42	0.33	2.10	0.27	1.01	6.20	6.23	4.58	5.32
Tb	0.48	0.03	0.41	0.27	0.04	0.35	1.00	0.14	0.01	0.05	0.08	0.50	0.06	0.19	1.01	1.04	0.82	0.89
Dy	2.55	0.15	2.59	1.53	0.50	2.07	5.75	0.68	0.05	0.35	0.52	3.30	0.40	1.03	5.47	5.50	4.55	4.92
Ho	0.52	0.12	0.60	0.31	0.08	0.44	1.01	0.14	0.01	0.11	0.09	0.74	0.12	0.25	1.00	1.03	0.97	0.89
Er	1.67	0.28	1.72	0.78	0.22	1.20	2.77	0.54	0.05	0.18	0.34	2.20	0.05	0.67	2.94	3.06	3.04	2.60
Tm	0.32	<0.0	0.15	0.15	0.04	0.16	0.33	0.06	0.00	0.02	0.07	0.33	<0.0	0.03	0.47	0.47	0.48	0.41
Yb	1.04	0.06	0.71	0.66	0.23	0.96	1.93	0.34	0.05	0.16	0.29	2.05	0.32	0.56	3.14	3.33	3.34	3.16
Lu	0.08	0.03	0.17	0.08	0.03	0.14	0.26	0.05	0.01	0.03	0.04	0.30	0.04	0.11	0.43	0.45	0.49	0.40
ΣREE	93.73	14.86	131.33	20.75	7.42	46.97	64.73	32.17	2.24	19.25	16.40	46.52	18.26	88.23	220.02	238.66	198.49	230.28
LREE	82.34	13.15	120.88	15.97	5.87	39.93	47.93	29.22	2.01	17.93	14.65	35.00	17.01	84.38	199.37	217.54	180.23	211.70
HREE	11.39	1.72	10.45	4.78	1.54	7.04	16.80	2.95	0.22	1.32	1.75	11.52	1.25	3.85	20.65	21.12	18.26	18.58
	0.85	0.76	0.96	1.02	0.48	1.05	1.08	0.86	0.81	0.63	0.71	0.91	0.38	0.81	0.90	0.94	0.90	0.87
	1.02	0.43	0.78	1.06	1.88	0.68	0.91	1.71	0.14	2.63	0.78	1.07	1.39	0.96	0.61	0.60	0.55	0.51