Hydrocarbon Generation Potential of the Es_3 Source Rocks in Baxian Sag

Based on related analytical data,the hydrocarbon generation potential of Es3 source rocks in Baxian Sag was evaluated from the aspects of organic matter abundance,its type and thermal evolution process,and its source potential was further analyzed.The result reveals that the source rocks with high organic matter abundant are mostly distributed in the middle and lower parts of Es3 and integral evaluation indicates that they are good source rocks Es4 formations,and the grade are good source rocks.The grade of Es3 is medium source rock.The organic matter is mainly of Ⅱ type,and source rocks are at low maturity-maturity stage,they have good hydrocarbon generation potential These manifest that the resource potential of source rocks is high.The result of the hydrocarbon generation history simulation indicates that the Es3 source rocks in Well Xinglong 1 are in the maturity threshold in the Es2 sedimentation period.And now,the Es3 source rocks in the center of the Baxian Sag is at maturity-high maturity stage and slope of it is low maturity-maturity evolution stage.