Skip to main content
. 2025 May 7;15:15926. doi: 10.1038/s41598-025-97780-z

Table 2.

The conventional core data in SAEN-2 well and the estimated flow zone and reservoir quality indices.

RRTs Depth (m) ρg (g/cm3) kH (mD) kV (mD) λk (0.00) ∅He (v/v) Sw (%) ∅z (0.00) RQI (μm) FZI (μm) R35 (μm)
RRT1 2324.5 2.66 16.01 0.73 4.68 0.18 68.6 0.22 0.18 0.82 2.268
2326.2 2.69 2.4 NPP – 0.12 57.0 0.136 0.14 1.027 1.055
2326.8 2.68 2.76 NPP – 0.12 70.5 0.136 0.15 1.10 1.145
2324.3 2.68 27.5 1.53 4.24 0.20 62.8 0.25 0.37 1.48 2.846
2321.8 2.68 86.3 7.67 3.35 0.21 62.7 0.266 0.64 2.408 5.345
2323.8 2.67 86.5 1.0 9.30 0.20 63.4 0.25 0.65 2.60 5.583
2322.8 2.67 263 NPP – 0.24 54.9 0.316 1.03 3.262 9.171
2320.3 2.65 429 25.9 4.07 0.26 55.9 0.351 1.28 3.643 11.412
2326.3 2.69 367 NPP – 0.24 57.0 0.316 1.22 3.863 11.156
Average 2.674 142.27 7.37 5.13 0.20 61.42 0.249 0.629 2.245 5.553
Min 2.650 2.40 0.73 3.35 0.12 54.90 0.136 0.140 0.820 1.055
Max 2.690 429.0 25.90 9.30 0.26 70.50 0.351 1.280 3.863 11.412
RRT2 2320 2.64 325 13.0 5.00 0.22 60.8 0.282 1.20 4.255 11.198
2319.8 2.67 659 7.89 9.14 0.26 53.0 0.351 1.60 4.554 14.688
2326.5 2.69 416 NPP – 0.22 59.5 0.282 1.37 4.857 12.947
2323.3 2.65 474 3121 0.39 0.22 57.1 0.282 1.44 5.105 13.980
2319.5 2.66 1250 2.98 20.48 0.27 56.9 0.37 2.16 5.84 20.715
2324 2.67 2060 4.88 20.55 0.29 48.0 0.408 2.66 6.512 26.124
2327.5 2.67 1064 13.5 8.88 0.26 56.7 0.351 2.01 5.721 19.467
Average 2.664 892.6 527.2 10.74 0.25 56.00 0.332 1.777 5.263 17.017
Min 2.640 325.0 2.98 0.390 0.22 48.00 0.282 1.200 4.255 11.198
Max 2.690 2060 3121 20.55 0.29 60.80 0.408 2.660 6.512 26.124
RRT3 2320.8 2.67 1073 119 3.00 0.25 53.3 0.333 2.04 6.12 20.238
2319.4 2.65 1385 618 1.50 0.26 50.7 0.351 2.28 6.489 22.732
2321 2.67 829 4.64 13.37 0.23 58.6 0.299 1.88 6.294 18.689
2321.3 2.67 1014 64.9 3.95 0.24 59.6 0.316 2.05 6.492 20.279
2320.5 2.64 1643 83.6 4.43 0.26 52.0 0.351 2.52 7.172 25.134
2325.5 2.68 1320 2273 0.76 0.25 55.0 0.333 2.30 6.9 22.860
2325.8 2.69 2634 1788 1.21 0.29 48.8 0.408 2.90 7.1 30.186
2327.3 2.67 2208 182 3.48 0.28 43.0 0.389 2.78 7.149 28.050
2325 2.68 2947 1550 1.38 0.29 45.3 0.408 3.18 7.786 32.247
2327.8 2.68 1696 4.86 18.68 0.25 52.7 0.333 2.6 7.8 26.490
2328 2.67 2230 119 4.33 0.27 49.9 0.370 2.88 7.787 29.114
2324.8 2.65 2751 1444 1.38 0.27 52.1 0.371 3.18 8.598 32.940
2326 2.69 3120 2748 1.07 0.28 49.1 0.389 3.29 8.46 34.373
Average 2.670 1911.5 846.1 4.50 0.26 51.55 0.358 2.606 7.242 26.410
Min 2.640 829.0 4.64 0.76 0.23 43.00 0.299 1.880 6.120 18.689
Max 2.690 3120 2748 18.68 0.29 59.60 0.408 3.290 8.598 34.373
RRT4 2321.5 2.67 2680 3.32 28.41 0.25 55.3 0.333 3.24 9.72 34.668
2323 2.68 4377 NPP – 0.28 49.8 0.389 3.95 10.157 41.944
2325.3 2.67 2800 733 1.95 0.25 52.4 0.333 3.31 9.93 35.572
2323.5 2.66 3642 3475 1.02 0.26 50.5 0.351 3.72 10.588 40.136
2327 2.67 4893 1335 1.91 0.28 45.4 0.389 4.13 10.62 44.784
Average 2.670 3678.4 1386.6 8.323 0.264 50.68 0.359 3.670 10.203 39.421
Min 2.660 268 3.320 1.020 0.250 45.40 0.333 3.240 9.720 34.668
Max 2.680 4893 3475 28.41 0.280 55.30 0.389 4.130 10.620 44.784

RRTs is the reservoir rock types, ρg is the grain density, kH and kV are the horizontal and vertical permeabilities, respectively, ∅He is the helium porosity in fraction, NPP means not possible plug, λk is the permeability anisotropy, Sw is the water saturation, ∅z is the normalized porosity index, RQI and FZI are the reservoir quality and flow zone indices, respectively, R35 is the effective pore radius.