floor effect

With oil test statistics, according to study and analysis for cross plot of porosity and depth and compaction target, which is drawn from oil layer and dry zone and low pay zone, effective inferior boundary of reservoir porosity is regarded to be about 9%, porosity reduction resulted from compaction is 34%.

在试油统计基础上,根据油层、干层和低产油层绘制孔隙度、深度、压实指标等交会图的研究及具体分析,认为储集层孔隙度有效下限值为9%,压实减孔量为34%。