临南油田夏52块沙三中泥质砂岩油层精细评价

临南油田夏 5 2块沙三中泥质砂岩油层分布广 ,未动用程度高 ,为了稳定产量 ,急需寻找可直接投产的泥质砂岩油层。本文利用相渗实验资料建立油相相对渗透率与含水饱和度关系 ,从而建立有效渗透率的解释模型。依据有效渗透率和有效厚度将泥质砂岩油层划分等级 ,分区评价 ,这不仅有利于合理开采和保护此类油层 ,降低其生产成本 ,也为预测此类油层产能提供依据

CAREFUL EVALUATION OF HYOLROCARBON BEARING SHALY SANDS IN THE MIDDLE OF SAND THREE OF BLOCK XIA - 52 OF LINNAN OILFIELD

Hydrocarbon bearing shaly sands are widely distributed and unexploited in the middle of Sand Three of Block Xia-52 of Linnan Oilfield. To keep production steady , its very important to find out what hydrocarbon bearing shaly sands could be directly exploited without pressing crack and acidification. In this paper , the relation between relative permeability and water saturation could be set up by relative penetration curving , so the interpretative model of effective permeability comes into being.According to effective permeability and effective thickness, hydrocarbon bearing shaly sands are divided into 7 blocks. By this means, hydrocarbon bearing shaly sands could be rationally exploited ,effectively protected and the cost of development could be reduced and it provides basis for productivity forecast.