This map shows the results of a project that was conducted for Gazprom in an area with ​​methane gas in coal bed, in the Kemerovo region in Southwestern Siberia, September 2010. The annual production is around 8 million tons of coal. Usually, the coal is mixed with methane, which represents between 80 and 98% of the mixture of natural gas in coal beds, requiring its prior extraction to ensure industrial safety.

 

       However, not every type of coal is suitable for methane extraction. Fields consisting of brown and long-flame coal are poor in methane. Anthracite coal has a high concentration of gas, but can’t be extracted due to very high density and low porosity of the accumulations. Coals that are intermediate between brown and anthracite are ideal for methane extraction. That is the type of coal found in the Kuzbass basin and Taldinskoye field.

 

          The Helium survey was conducted in order to define the best reservoirs and the geometrization of the zones with higher fracture permeability and gas saturation. Data interpretation assumes that increased Helium flow indicates areas of extension, with high permeability and high gas saturation in formations and natural drainage of the productive sections. On the other hand, low Helium flow suggests compression zones where the section is isolated with low gas saturation and low permeability, and where there is a lack of efficient drainage of the reservoir.