Examination of a Theoretical Model of Streaming Potential Coupling Coefficient

Table 1

Sample ID, mineral compositions, and microstructure parameters of the samples. Symbols 𝑘_𝑜 (in mD), 𝜙 (in %), 𝐹 (no units), 𝛼_∞ (no units), and 𝜌_𝑠 (in kg/m³) stand for permeability, porosity, formation factor, tortuosity, and solid density, respectively. For lithology, EST stands for Estaillade limestone, IND stands for Indiana Limestone, BER and BereaUS stand for Berea sandstone, BEN stands for Bentheim sandstone, and DP stands for artificial ceramic core.

	Sample ID	Mineral compositions	𝑘𝑜	𝜙	𝐹	𝛼∞	𝜌𝑠
1	EST	Mostly calcite (see [19])	294	31.5	9.0	2.8	2705
2	IND01	Mostly calcite, silica, alumina, and magnesium carbonate (see [20, 21])	103	20.0	32.0	6.4	2745
3	BER5	Silica (74.0–98.0%), alumina, and clays (see [21, 22])	51	21.1	14.5	3.1	2726
4	BER12	—	48	22.9	14.0	3.2	2775
5	BER502	—	182	22.5	13.5	3.0	2723
6	BER11	—	740	24.1	14.0	3.4	2679
7	BEN6	Mostly silica (see [23])	1382	22.3	12.0	2.7	2638
8	DP50	Alumina and fused silica; (see http://www.tech-ceramics.co.uk/)	2960	48.5	4.2	2.0	3546
9	DP46i	—	4591	48.0	4.7	2.3	3559
10	DP217	—	370	45.4	4.5	2.0	3652
11	DP215	—	430	44.1	5.0	2.0	3453
12	DP43	—	4753	42.1	5.5	2.3	3373
13	DP172	—	5930	40.2	7.5	3.0	3258
14	BereaUS1	Silica, alumina, ferric oxide, and ferrous oxide; (http://www.bereasandstonecores.com/)	120	14.5	19.0	2.8	2602
15	BereaUS2	—	88	15.4	17.2	2.6	2576
16	BereaUS3	—	22	14.8	21.0	3.1	2711
17	BereaUS4	—	236	19.1	14.4	2.7	2617
18	BereaUS5	—	310	20.1	14.5	2.9	2514
19	BereaUS6	—	442	16.5	18.3	3.0	2541
20	BEN7	Mostly silica (see [23])	1438	22.2	12.6	2.8	2647