Kaijiang-Liangping continental shelf in northeastern Sichuan Basin is an important area for petroleum exploration in China.Reservoir distribution is very complicated and the reservoir quality is greatly variable.Based on the previous research

this paper described the reservoir characteristics of the Ferxianguan Formation by using high-resolution sequence stratigraphy and integrating various data such as seismic

logging

lithofacies

outcrop and thin section data.On the basis of high-frequency sequence stratigraphy division and correlation of single well

a high resolution sequence framework was established with system tract as the unit.The development features and factors controlling bank facies reservoirs rocks were analyzed within the framework.Taking Puguang and Yuanba blocks as the case study

we established the fine structure pattern for reservoirs in the Feixianguan Formation.The reservoirs in the Puguang gas field are thick in vertical and continuous in lateral

and have good porosity and permeability.In contrast

the reservoirs in the Yuanba gas field are thin in vertical

commonly occur at the upper or top of the high-frequency sequences

and have poor porosity and permeability as a whole.The further study of reservoir development and distribution within the high-resolution stratigraphic framework is of great significance to the exploration and development in the Feixianguan Formation.