Micro- and Nanoscale Pore Structure Characterization of Carbonates from the Xiaoerbulake Formation in the Tarim Basin, Northwest China

Table 3

Pore network diameter ranges and associated parameters from MIP tests.

Sample	(MPa)	(μm)	Calculated permeability (mD)	(MPa)	(μm)	Calculated permeability (mD)	(MPa)	(μm)	Calculated permeability (mD)	(MPa)	(μm)	Calculated permeability (mD)
	>10 μm			1 μm–10 μm			0.1 μm–1 μm			10 nm–100 nm
SGT 1-4-3	0.117	12.8	0.14	0.406	3.68	0.092	6.89	0.217	0.0006	68.9	0.021	0.00001
SGT 1-7-A	0.069	21.9	0.32	0.271	5.54	0.092	1.37	1.100	0.0071	20.7	0.071	0.00007
SGT 4-28-F	0.083	18.2	2.50	0.406	3.68	0.191	2.75	0.547	0.0046	68.9	0.021	0.00001
SGT 4-30-E	0.069	24.7	3.83	0.207	8.22	0.348	3.78	0.449	0.0345	14.4	0.123	0.00317
SGT 5-47-A	0.138	10.9	3.83	0.548	2.76	0.324	2.20	0.684	0.0170	26.2	0.056	0.00019
SGT 6-49-A	0.069	24.7	6.21	0.270	6.39	1.137	6.20	0.273	0.0024	35.1	0.047	0.00013
SGT 6-56-2	0.069	21.9	1.37	0.241	6.35	0.377	2.47	0.607	0.0017	68.9	0.021	0.00000
SHY 1-002-3	0.055	27.4	1.62	0.239	6.35	0.219	3.43	0.437	0.0023	68.9	0.021	0.00001
SHY 1-008-2	0.165	9.2	0.89	1.235	1.22	0.034	14.47	0.102	0.0004	24.8	0.059	0.00034
SHY 1-011-2	0.138	10.9	0.61	0.615	2.45	0.054	4.13	0.363	0.0008	35.1	0.041	0.00005
SHY 1-018-1	0.048	31.3	4.30	0.207	7.28	0.862	2.75	0.547	0.0089	48.2	0.030	0.00004
SHY 3-030-3	0.055	27.4	3.18	0.238	6.35	0.775	14.46	0.102	0.0003	30.3	0.048	0.00012
SHY 3-041-3	0.048	31.3	2.52	0.165	9.20	0.891	3.44	0.437	0.0040	35.1	0.041	0.00009
SHY 3-098	0.041	41.2	12.48	0.200	8.50	0.487	1.92	0.886	0.0099	51.6	0.032	0.00002
SHY 4-091-D	0.179	8.4	0.72	0.955	1.58	0.057	4.13	0.363	0.0048	23.4	0.063	0.00034
SHY 5-107-3	0.200	7.5	0.54	0.407	3.68	0.824	1.93	0.783	0.0507	26.2	0.056	0.00062
SHY 5-108-D	0.041	39.9	2.19	0.231	6.35	0.375	6.89	0.217	0.0049	26.2	0.056	0.00029
SHY 6-133-1	0.041	39.9	4.55	0.200	7.49	0.526	1.72	0.879	0.0190	14.5	0.102	0.00060
Average	0.090	22.8	2.88	0.391	5.39	0.426	4.72	0.500	0.0097	38.2	0.051	0.00034

: the characteristic length is the pore-throat diameter corresponding to the critical (threshold) pressure .