黏土矿物和孔喉特征对致密砂岩可动流体分布的影响——以鄂尔多斯盆地东部山西组储层为例

李咪, 郭英海, 杨亦浩, 简阔, 茹忠亮, 李冠霖

Effects of clay minerals and pore-throat characteristics on the movable fluid of tight sandstones：A case study of the Shanxi Formation in eastern Ordos Basin

Mi LI, Yinghai GUO, Yihao YANG, Kuo JIAN, Zhongliang RU, Guanlin LI

表4 山西组典型致密砂岩样品的核磁共振实验参数

Table 4 Parameters derived from the nuclear magnetic resonance tests of typical tight sandstone samples from Shanxi Formation

样品编号 核磁孔隙度/% 渗透率/（10-3 μm2） 可动流体百分数/% 束缚流体百分数/% T2c/ms 可动流体孔隙度/% 1# 4.67 0.892 0 78.79 21.21 90.39 3.68 2# 11.53 0.560 7 40.10 59.90 7.32 4.62 3# 9.14 0.454 0 58.86 41.14 22.09 5.38 4# 11.34 0.474 8 67.44 32.56 3.95 7.65 5# 12.58 0.327 5 47.00 53.00 10.16 5.91 6# 11.67 0.491 0 22.07 77.93 3.37 2.57 7# 2.56 0.093 0 9.41 90.59 5.17 0.24 8# 4.86 0.291 0 9.39 90.61 8.76 0.46