The Paleogene in Shinan area of Bozhong depression is encountered by only a few wells

constraining the understanding of its source rock distribution

reservoir type and distribution

and hydrocarbon migration as well as reservoir types.Based on integration of 3D seismic

drilling

logging and laboratory data and in combination with sedimentary settings

we studied the features of acitivity of Shinan fault in the Paleogene in Bozhong Depression and discussed the relationship between fault activity and hydrocarbon accumulation by using fault slip rate method.The activity of the Shinan fault features in regular change pattern of"weak-strong-weak-strong-strong-weakest".It was the strongest during the deposition of the third member of Shahejie Fm and the 2

nd

and 3

rd

members of Dongying Fm when source rocks were developed.It was weak during the deposition of the 1

st

and 2

nd

members of Shahejie Fm and the 1

st

member of Dongying Fm when reservoirs were developed.In addition

strong depression occurred during the deposition of the 2

nd

member of Dongying Fm when relatively good reservoirs were developed in the large distal delta front deposits.Fault-anticline reservoirs and fault-lithologic reservoirs occur in locations with strong fault activity

while fault-lithologic reservoirs and lithologic reservoirs occur in places with weak fault activity.