泥质砂岩油层含水饱和度解释模型探讨——以临南油田夏52块沙三中为例

On the basis of the datum of L ithology-electric test and

p roperties analysis of hydrocarbon bearing shaly sands, which

is in the middle of the third Shahejie formation of block Xia-

52 in L innan Oilfield, the paper uses the p roved Archie

formula, Waxman-Smiths equation, dual-water model and

resistivity index-water saturation regression method to count

its water saturation values, then establishs four kinds ofwater

saturation exp lanation models. According to the comparing

analysis of the interp retation results, we can conclude that the

latter two exp lanation models are more advisably than the

others.