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龙虚泡地区高台子油层储集岩基本上由岩屑长石粉砂岩组成。压实作用、胶结作用、溶蚀作用、粘土矿物的转化作用和交代作用对沉积岩 (物 )进行了改造。根据岩石的结构可以看出压实作用发育于早成岩阶段 ,方解石胶结物的结构和碳、氧稳定同位素组成说明方解石胶结作用发育于早成岩阶段。压实作用和方解石结作用对孔隙的减少起着决定性影响。长石和中基性火山岩岩屑的溶蚀作用使得孔隙有一定程度的增加。压实作用和胶结作用也阻止了自生石英的生长和次生孔隙带的形成。
The Longtaobu area Gaotaizi oil reservoir basically consists of lithic feldspar siltstones. Compaction, cementation, dissolution, conversion of clay minerals, and metasomatism have altered sedimentary rocks. According to the rock structure, it can be seen that the compaction took place in the early diagenetic stage. The structure of calcite cements and the stable carbon and oxygen isotope compositions indicate that the cementation of calcite develops in the early diagenetic stage. Compaction and calcite play a decisive role in the reduction of porosity. The dissolution of feldspars and mafic volcanic rock cuttings increases the porosity to a certain extent. Compaction and cementation also prevent the growth of authigenic quartz and the formation of secondary porosity.