Current Situation of Tight Sand Gas in China

Unconventional natural gas because of a huge amount of resources has been received extensive attention in the world. Based on the present technology in China, tight sand gas as one type of unconventional gas, has become the most realistic energy resources, and has reached a certain development scale. Low porosity and permeability of tight sand gas reservoirs are widely distributed in China's major basins, the proved reserves of tight sand gas reservoirs in the proportion of reserves increases significantly year by year. Tight sand gas exploration in unconventional natural gas is most realistic, the concept of tight sand gas, reservoir characteristics, formation mechanism of unconventional tight sand gas, distribution in China are reviewed in the essay, exploration direction and some suggestions are pointed out at the end.