Abstract: High-resolulion processing of the thin layer loggingdata in Shuanghe oilfield was carried out by using thegeometrical factor theory under downhole conditions. Theprocessed logs removed the effects of shoulderbed on thinlayers, and the calculated parameters such as porosity andshale content were more accurate. On the basis of shis,discrimination criteria of oil, water and dry layers of thinreservoirs were established. Real logging data processing of20 wells show that this method is simple, practical andeffective.