上海地质
上海地質
상해지질
2008年
1期
60~62
,共null页
胡霞 黄得利 李照勇
鬍霞 黃得利 李照勇
호하 황득리 리조용
宋芳屯油田扶杨油层 毛细管压力曲线 孔隙结构 特征参数
宋芳屯油田扶楊油層 毛細管壓力麯線 孔隙結構 特徵參數
송방둔유전부양유층 모세관압력곡선 공극결구 특정삼수
Fu -yang reservoirs in songfangtun oil field, Cp curve, pore structure, characteristic parameter
通过镜下观察,宋芳屯油田扶杨油层孔隙类型较多,以粒间孔为主。细管压力曲线上看,曲线较陡,分选差,孔隙结构特征参数总体上较差,与孔隙度、渗透率有一定的关系,大的孔隙对渗透率的贡献最大。扶杨油层的孔隙结构较复杂主要由于成岩作用影响,压实作用使孔隙空间显著缩小,胶结作用和自生粘土矿物生长使孔隙进一步缩小和复杂化,后期的溶蚀作用使孔隙空间增加。
通過鏡下觀察,宋芳屯油田扶楊油層孔隙類型較多,以粒間孔為主。細管壓力麯線上看,麯線較陡,分選差,孔隙結構特徵參數總體上較差,與孔隙度、滲透率有一定的關繫,大的孔隙對滲透率的貢獻最大。扶楊油層的孔隙結構較複雜主要由于成巖作用影響,壓實作用使孔隙空間顯著縮小,膠結作用和自生粘土礦物生長使孔隙進一步縮小和複雜化,後期的溶蝕作用使孔隙空間增加。
통과경하관찰,송방둔유전부양유층공극류형교다,이립간공위주。세관압력곡선상간,곡선교두,분선차,공극결구특정삼수총체상교차,여공극도、삼투솔유일정적관계,대적공극대삼투솔적공헌최대。부양유층적공극결구교복잡주요유우성암작용영향,압실작용사공극공간현저축소,효결작용화자생점토광물생장사공극진일보축소화복잡화,후기적용식작용사공극공간증가。
The fu - yang reservoirs pore styles are variety, the main style is intergranular pore. The Cp curves'shape are cliffy ,the pore structure is assorted and pore structure characteristic parameters mainly are poor. It has some relationship with pority and permeability. The big pore have the most contribution to the permeability. Fu - yang reservoirs'pore structure are complex because of the influence of diagenesis, compaction decreasing the pore space obviously. Both cementation and clay mineral growing further decreased the pore space and made pore structure more complication and later stage denudation increased the pore space as well.