Vertical Segmentation Growtg of Fault and Oil Source Fault Determination in Fuyang Oil Layer of Sanzgao Depression
Wang Haixue
Fu Xiaofei
Fu Guang
L Yanfang
Du Wei
Liu Tongxi
Abstract：It is proved that fault possesses a typical characteristic of vertical segmentation growth if there is competent difference by field observation,typical seismic analysis and physical modeling.Fault evolution can be divided into three stages by compe-tent difference:formation of lower fault,segmentation of upper and lower faults and formation of throughgoing fault.Taking Sanzhao depression as an example,rock mechanical properties and fault related fold theories prove that there widely exist faults in sandstone layer of Fuyang oil layer,whose propagation is stopped by mudstone in Qingshankou FormationⅠmember,lead-ing to the vertical segmentation growth of fault.Combining fine reservoir anatomy,it can be concluded that the main oil source faults of the“reversed”migration in Fuyang oil layer must have been active in hydrocarbon migration and accumulation period, connecting oil source and reservoirs,and featuring vertical segmentation growth in Sanzhao depression.
Keywords：Sanzhao depressionsegmentation growth“reversed”migrationoil source faultFuyang oil layerpetroleum geology
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 1539-1546 )