Based on analysis of cores

thin-sections

FMI imaging log and seismic coherent slices

studies were performed on the petrological characteristics

reservoir types

response of vertical imaging logging

physical pro-perties of oil-bearing strata and horizontal distribution of fracture zone in Archean metamorphic buried-hills of the Liaoxi low uplift.Three types of lithology were identified in the metamorphic reservoirs:migmatite

regional metamorphic rocks and cataclasite.Types of reservoir space include fractures

dissolution pore and micro-pore

among which structural fracture is the dominant type.Five types of logging responses were identified and described by interpretation of imaging logging and dual lateral logging. Combining porosity logging

a comparative study was performed on porosity range in oil-bearing layers and logging response characteristics.The quantitative relationship between the number of hydrocarbon reservoirs and information dimension that reflect development of structural fractures were defined based on the analysis of seismic coherent slice.The vertical and horizontal distribution of favorable reservoirs were revealed

laying the foundation for comprehensive analysis of hydrocarbon accumulation.