Occurrence Characteristics and Threshold Pore Throat Radius of Movable Fluids for Dolomite Intercrystalline Pores of Lacustrine Carbonate Rocks

Table 2

Variation of porosity component during NMR centrifugal process.

Sample	Pore type	Centrifugal force (MPa)	NMR porosity component (%)
			0.01 ms-0.1 ms	0.1 ms-1 ms	1 ms-10 ms	10 ms-100 ms	>100 ms
24	Intercrystalline pore	Before centrifugation	0.179	1.089	4.191	0.857	0.008
24		0.144	0.179	1.089	3.743	0.833	0.008
24		0.288	0.171	1.087	3.651	0.673	0.008
24		0.576	0.166	1.055	3.567	0.529	0.007
24		1.44	0.165	1.054	3.413	0.460	0.007
Variation of porosity component			0.014	0.035	0.779	0.397	0.001
26	Intercrystalline pore	Before centrifugation	0.005	1.825	11.479	0.000	0.000
26		0.144	0.001	1.727	10.407	0.000	0.000
26		0.288	0.000	1.550	9.812	0.000	0.000
26		0.576	0.000	1.439	8.538	0.000	0.000
26		1.44	0.000	1.421	7.504	0.000	0.000
Variation of porosity component			0.005	0.405	3.975	0.000	0.000
S12	Intercrystalline dissolved pore	Before centrifugation	0.267	1.739	4.336	0.477	0.061
S12		0.144	0.262	1.738	2.207	0.062	0.034
S12		0.288	0.261	1.655	1.403	0.084	0.034
S12		0.576	0.259	1.589	1.030	0.080	0.032
S12		1.44	0.256	1.560	0.893	0.079	0.032
Variation of porosity component			0.011	0.179	3.443	0.398	0.029
27	Intercrystalline dissolved pore	Before centrifugation	0.244	2.433	4.102	1.312	0.000
27		0.144	0.244	2.407	3.151	1.183	0.000
27		0.288	0.239	2.367	2.626	0.275	0.000
27		0.576	0.231	2.290	2.230	0.141	0.000
27		1.44	0.225	2.139	1.056	0.101	0.000
Variation of porosity component			0.019	0.295	3.047	1.211	0.000