关键词: 常规天然气, 非常规天然气, 煤层气, 致密砂岩气, 天然气水合物, 水溶气

Abstract: On basis of a lot of statistics, natural gas resource of China is studied from its type, accumulation, and distribution. First, the history of exploration of conventional gas is divided into four stages, the reserves of conventional gas have been improved three step types and the reserves of conventional gas are mainly distributed in the six major basin. Second, the reserves of con-
ventional gas are mainly distributed in sea basin of East, Mid-dle, Northern-Western. The conventional gas resource in China is with features of old strata, low richness, and low proved rate. Third, the resource of coalbed Methane of China is mainly distributed in Eastern, Middle, and Northern-Western China.
Fourth, general tight sandstone gas and deep basin gas is two different types of tight sandstone gas. There is the superior fac-tor to form deep basin gas and there is much resource of deep basin gas. Fifth, South China Sea, East China Sea, Tibet Pla-teu, and North-East China are rich in natural gas hydrate.
Sixth, there is a lot of formation water in petroleum basins in China, where water soluble gas is largely existing. In the end,shale gas, deep source gas, CO2and H2S resource are plenty,which should not be neglected in China.

Key words: conventional gas, unconventional gas, coalbed methane, tight sandstone gas, natural gas hydrate, water solu-ble gas