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鄂尔多斯盆地马岭油田是该盆地油气勘探和开发的重要的地区,基于岩心,薄片,物性,压汞等化验分析资料,研究了马岭地区长81储层特征。研究表明,马岭地区长81储层属于低渗_超低渗储层。储层分布范围较广。储集空间以粒间孔和长石溶孔为主要储集空间,喉道类型以片状或弯曲片状喉道为主,管束状喉道和缩颈型喉道次之,孔吼组合类型主要为大-中孔微喉型。利用物性和压汞等参数。将马岭长81储层分为三类。其中,Ⅰ,Ⅱ类储层是首选储层。
The Maling Oilfield in the Ordos Basin is an important area for oil and gas exploration and development in this basin. The characteristics of the Chang 81 reservoir in the Maling area have been studied based on laboratory and analysis data of cores, thin sections, physical properties and mercury intrusion. The study shows that Chang 81 reservoir in Maling belongs to the low permeability and ultra-low permeability reservoir. A wider range of reservoir distribution. The main reservoir space is the intergranular pores and feldspar dissolved pores in the reservoir space. The throat type is dominated by lamellar or curved lamellar throat, followed by the bundle-shaped throat and necking throat followed by the combination type Mainly large - medium-sized micro-throat type. Use physical properties and mercury injection parameters. The Maling 81 reservoir is divided into three categories. Among them, Ⅰ and Ⅱ reservoirs are the preferred reservoirs.