Lithological composition and reservoir properties of Lower Ordovician Majiagou formation in the gas field Tabamiao (Ordos Basin, China)
Ordos Basin is concentrated rich areas of coal, natural gas and oil. In last years it is becoming an important mineral resource and energy base of China. To the most well-known and good studied gas fields belong Sulige and Tabamiao, where natural gas takes place in carbonate rocks of Early Ordovician time. As the result of an investigation that made by author, there is a definition of five types of reservoirs which lay in the core of weathering of Ordovician carbonate deposits.