Geological Study Of Qinjiagou Oilfield Reservoir In Zhidan Oil Field

Qinjiagou block in Zhidan Oil Field is located in Zhidan County, and is a typical lowpermeable oil ifeld in YanChang oil fields. Oil-beairng seires are distirbuted in the Yan8，Chang2，Chang6，the major reservoir is chang6, good lace, wide distirbution of reservoir,and stable production. Based on drilling statistics，it is an oil enirchment reservoir，multiplereservoir and large area of recombination. In order to improve the development effect andrecovery eiffciency maximum, it is urgent to strengthen geological research and compilereservoir overall development plan to guide the management,development and improve theeconomic benefit. This study apply the theory of sedimentology and petroleum geology, on thebasis of predecessors’ achievements, tak full advantage of logging data to stratigraphicdivision,study sedimentary fades and reservoir characteirstics, analysis of the reservoirforming rules, discovery reservoir enrichment law, eventually selected favorable areas, toensure increasing oil reservoir and production.