流花11-1油田储层岩心的润湿性,经作业者测定结果是亲油的。本文以该油田原油的极性组分在纵向上的变化为依据,用相对渗透率曲线鉴定润湿性的方法,最后判断流花11-1油田的润湿性是非均质的,即上油层段亲水,下油层段亲油。同时讨论了流花11-1油田4号井油基泥浆取心液对该井岩心的污染,使原亲水的上油层段岩心变成亲油的假象。 The wettability of the reservoir core of Liuhua 11-1 oilfield is lipophilic as determined by the operator. In this paper, based on the changes of the polar components of the crude oil in the vertical direction, the relative permeability curve is used to identify the wettability. Finally, the wettability of the Liuhua 11-1 oilfield is judged as inhomogeneous, Hydrophilic, under the oil layer lipophilic. At the same time, it discusses the contamination of the well core by the oil-based mud of No.4 oil well in Liuhua 11-1 Oilfield and makes the core of the original hydrophilic oil-bearing section turn into lipophilic illusion.