Shale gas refers to the subject in the dark shale or shale in high carbon

Maide shale gas refers to the subject in the dark shale or shale in high-carbon to adsorb or free state as the main mode of existence gas accumulation. Shale gas reservoir porosity is generally 4% to 5% and permeability of less than 10 × 10-3 μm2. Mudstone and shale sedimentary rocks worldwide accounting for about 60% of the huge fracturing sand  shale gas prospects, its resource of 456.24 × 1012m3, mainly in North America, Central Asia, China, Latin America, the Middle East, North Africa and the former Soviet Union. Shale gas production and reservoir nature. Whether in the reservoir fluid flow, whether in favor of the oil and gas flowing large pore throats.

Good water and power systems and advanced mining technology, is an important factor affecting shale gas production. Shale gas reservoirs need to take appropriate measures to increase production and special drilling and completion methods. Horizontal or inclined exploration wells, deviated drilling is the best way to develop lenticular gas reservoirs, and horizontal wells will be the best way to develop an edge marine and marine sheeted sandstones.