Geofluids

Research Article

Permeability Calculation of Sand Conglomerate Reservoirs Based on Nuclear Magnetic Resonance (NMR)

Comparison of permeability computed using the IFU and classic models.


Sample ID	Model-computed permeability and relative error
	IFU		Coates model 1		Coates model 2		SDR model 1		SDR model 2
	Permeability (10^-15 m²)	Relative error (%)	Permeability (10^-15 m²)	Relative error (%)	Permeability (10^-15 m²)	Relative error (%)	Permeability (10^-15 m²)	Relative error (%)	Permeability (10^-15 m²)	Relative error (%)

B64-3	0.1189	35.03	0.0633	65.41	0.0585	68.03	0.1363	25.52	0.1209	33.93
B64-38	0.3136	43.09	1.6004	190.45	1.6687	202.85	2.0276	267.99	1.1400	106.90
M101-2-2	0.0403	18.53	0.0461	35.59	0.0194	42.94	0.0224	34.12	0.0219	35.59
M5-6	0.0049	9.26	0.0327	505.56	0.0049	9.26	0.0418	674.07	0.0121	124.07
B64-33	2.5713	15.86	1.8887	38.20	0.8159	73.30	0.3773	87.65	0.2266	92.59
B64-42	0.2651	27.96	0.4153	12.85	0.0575	84.38	0.1210	67.12	0.0345	90.63
B64-29	0.0278	15.76	0.0859	160.30	0.1081	227.58	0.1616	389.70	0.1825	453.03
B65-8	0.2664	18.53	0.0796	75.66	0.0529	83.82	0.1348	58.78	0.0957	70.73
M5-1	0.3052	24.27	0.1105	72.58	0.0147	96.35	0.3512	12.85	0.0454	88.73