Based on the study of petrology

using the data of cathodoluminescents

stable iso-topes of oxygen and carbon

trace elements and composite colouring

the diagenesis

diage-netic sequences and pore evolution of Upper Carboniferous carbonates in Central Hubei were studied in detail.The study shows that filling

cementation

solution

dolomitization

compaction and pressure-solution were the principal factors in controlling the reservoir properties of the Upper Carboniferous in Central Hubei

the most important of which were the dolomitization

solution in deep burial environment and pressure-solution in forming the pores of accumulation stage.