Multiphase Calcite Cementation and Fluids Evolution of a Deeply Buried Carbonate Reservoir in the Upper Ordovician Lianglitag Formation, Tahe Oilfield, Tarim Basin, NW China

Table 1

Carbon and oxygen isotopic data of different stages of pore-filling calcite cement by in situ SIMS of Lianglitag Formation carbonates in the Tahe Oilfield.

Well	Number	Depth; (m)	Stage	δ^18O; ( VPDB)	2SE	δ^13C; ( VPDB)	2SE
S106	1	5885.92	C1	−0.77	0.33	4.08	0.34
S106	2	5885.92	C1	−0.75	0.26	4.50	0.43
S106	3	5885.92	C1	−1.39	0.35	3.72	0.49
S106	4	5885.92	C1	−0.58	0.30	3.69	0.48
S106	5	5885.92	C1	−1.62	0.34	—	—
S106	6	5885.92	C1	−0.94	0.33	—	—
S106	7	5885.92	C1	−0.73	0.22	—	—
S106	8	5885.92	C1	−1.05	0.25	—	—
S106	9	5885.92	C1	−0.10	0.34	—	—
S106	10	5885.92	C1	−0.94	0.28	—	—
S106	11	5885.92	C1	−1.76	0.33	4.10	0.43
S106	12	5885.92	C1	−1.18	0.32	4.34	0.45
S106	13	5885.92	C1	−1.36	0.43	3.50	0.56
S106	14	5885.92	C1	−0.86	0.31	3.35	0.45
S106	15	5885.92	C1	−1.44	0.29	3.72	0.44
S106	16	5885.92	C1	−1.34	0.21	2.98	0.55
S106	17	5885.92	C1	−1.29	0.29	4.02	0.49
S106	18	5885.92	C1	−1.39	0.32	4.02	0.45
S106	19	5885.92	C2	−5.03	0.34	2.47	0.39
S106	20	5885.92	C2	−5.07	0.35	1.58	0.37
S106	21	5885.92	C2	−5.56	0.23	2.72	0.39
S106	22	5885.92	C2	−5.28	0.26	2.13	0.45
S106	23	5885.92	C1	−1.39	0.33	3.91	0.48
S106	24	5885.92	C1	−0.81	0.29	4.04	0.43
S106	25	5885.92	C1	−2.32	0.38	1.44	0.39
S110	1	6089.90	C6	−9.43	0.35	0.92	0.44
S110	2	6089.90	C6	−9.16	0.30	−0.88	0.70
S110	3	6089.90	C6	−9.69	0.29	0.13	0.42
S110	4	6089.90	C6	−9.14	0.28	—	—
S110	5	6089.90	C6	−9.19	0.29	0.91	0.39
S110	6	6089.90	C6	−9.47	0.43	−0.34	0.48
S110	7	6089.90	C6	−10.02	0.35	−0.12	0.42
S110	8	6089.90	C6	−9.54	0.26	0.48	0.36
S110	9	6089.90	C6	−9.40	0.26	0.57	0.48
T738	1	5893.10	C2	−2.56	0.19	—	—
T738	2	5893.10	C3	−8.23	0.25	−0.07	0.58
T738	3	5893.10	C3	−7.22	0.30	0.12	0.44
T738	4	5893.10	C2	−2.98	0.22	—	—
T738	5	5893.10	C2	−2.62	0.30	—	—
T738	6	5893.10	C5	−8.02	0.14	1.57	0.53
T738	7	5893.10	C5	−8.12	0.27	—	—
T738	8	5893.10	C5	−7.67	0.22	2.38	0.44
T738	9	5893.10	C2	−3.41	0.25	—	—
T738	10	5893.10	C4	−4.05	0.20	−0.10	0.58
T738	11	5893.10	C4	−4.49	0.22	−0.32	0.54
T738	12	5893.10	C5	−7.83	0.27	2.30	0.44
T738	13	5893.10	C5	−8.11	0.30	1.92	0.49
T738	14	5893.10	C2	−2.99	0.28	—	—
T738	15	5893.10	C2	−2.73	0.21	—	—
T738	16	5893.10	C2	−2.80	0.25	—	—
T738	17	5893.10	C4	−5.11	0.22	−0.03	0.31
T738	18	5893.10	C4	−4.35	0.27	—	—
T751	1	5838.00	C3	−7.10	0.26	2.75	0.62
T751	2	5838.00	C3	−6.50	0.28	3.33	0.44
T751	3	5838.00	C3	−8.14	0.28	1.61	0.45
T751	4	5838.00	C4	−2.83	0.35	2.05	0.47
T751	5	5838.00	C4	−3.42	0.34	2.52	0.51
T751	6	5838.00	C1	−3.62	0.38	—	—
T751	7	5838.00	C4	−4.07	0.30	2.80	0.50
T751	8	5838.00	C4	−2.29	0.37	—	—
T751	9	5838.00	C3	−7.82	0.34	3.17	0.51
T751	10	5838.00	Matrix	−5.33	0.41	3.35	0.67
T751	11	5838.00	C3	−7.12	0.22	3.66	0.28
T751	12	5838.00	C3	−7.88	0.34	4.02	0.37
T751	13	5838.00	C4	−5.07	0.34	4.9	0.57
T751	14	5838.00	C3	−8.45	0.38	2.59	0.51
T751	15	5838.00	C3	−7.60	0.29	4.07	0.47
T751	16	5838.00	C3	−7.09	0.24	3.87	0.48
T751	17	5838.00	C4	−5.37	0.41	3.75	0.58
T751	18	5838.00	C4	−3.51	0.33	3.07	0.55
T751	19	5838.00	C3	−8.76	0.34	1.44	0.59
T751	20	5838.00	C4	−3.50	0.29	3.49	0.24
T751	21	5838.00	C3	−8.18	0.22	—	—
T751	22	5838.00	C2	−5.55	0.23	3.75	0.28
T751	23	5838.00	C1	−2.68	0.23	4.04	0.32
T904	1	5779.36	C6	−9.38	0.27	−3.88	0.32
T904	2	5779.36	C6	−10.38	0.26	1.70	0.44
T904	3	5779.36	C5	−8.26	0.24	1.72	0.43
T904	4	5779.36	C5	−7.75	0.28	2.10	0.43
T904	5	5779.36	C6	−9.49	0.27	1.20	0.48
T904	6	5779.36	C5	−7.37	0.22	1.48	0.42
T904	7	5779.36	C3	−8.06	0.27	1.90	0.53
T904	8	5779.36	C3	−7.63	0.19	3.34	0.62
T904	9	5779.36	C2	−4.66	0.28	0.71	0.51
T904	10	5779.36	C2	−5.98	0.39	2.91	0.59
T904	11	5779.36	C5	−6.38	0.28	1.54	0.47
T904	12	5779.36	C6	−11.00	0.38	0.60	0.46
T904	13	5779.36	C5	−5.40	0.20	0.56	0.47
T904	14	5779.36	Matrix	−7.89	0.36	2.25	0.45
T904	15	5779.36	C2	−6.35	0.32	1.98	0.48
T904	16	5779.36	C3	−7.48	0.34	2.18	0.46
T904	17	5779.36	C3	−6.70	0.25	0.04	0.56
T904	18	5779.36	C5	−5.12	0.29	1.65	0.51
T904	19	5779.36	C5	−6.60	0.33	0.45	0.41
T904	20	5779.36	C3	−6.76	0.24	1.47	0.58