A decomposition method of nuclear magnetic resonance T2 spectrum for identifying fluid properties

ZHONG Jibin,YAN Ronghui,ZHANG Haitao,FENG Yihan,LI Nan,LIU Xingjun

Table 2 Statistics of properties of crude oil samples from various Mesozoic reservoirs in Ordos Basin.

Formation Density/ (g·cm-3) Temperature of density measurement/°C Viscosity/ (mPa·s) Temperature of viscosity measurement/°C Water content/% Asphaltene content/% Freezing point/°C Initial boiling point/°C System Memeber Jurassic Yan4 + 5 0.836 20 6.84 50 3.09 0.44 18.48 68.03 Yan6 0.834 20 5.67 50 0.76 3.71 18.47 66.51 Yan7 0.839 20 5.64 50 1.29 2.92 19.65 67.75 Yan8 0.841 20 6.17 50 2.78 3.71 18.72 70.71 Yan9 0.837 20 6.38 50 3.99 2.32 19.25 74.27 Yan10 0.840 20 5.76 50 2.35 0.89 18.40 72.77 Triassic Chang 1 0.836 20 6.54 50 4.37 0.90 18.05 67.09 Chang 2 0.847 20 6.90 50 9.00 1.84 18.62 72.43 Chang 3 0.841 20 5.72 50 4.09 2.03 18.36 69.56 Chang 4 + 5 0.849 20 5.58 50 3.21 2.33 19.25 71.60 Chang 6 0.834 20 5.67 50 5.83 1.76 20.29 69.14 Chang 7 0.837 20 4.70 50 2.26 0.63 18.01 66.31 Chang 8 0.838 20 5.64 50 2.20 1.80 18.60 69.32 Chang 9 0.834 20 5.59 50 2.67 20.22 68.92 Chang 10 0.825 20 4.66 50 5.15 21.69 67.14