Application of directional fracturing increased permeability technology in No. II -1 Coal Seam
Abstract：Coal mine gas disaster has been an important factor that restricted coal enterprises secure and efficient production within a long time. With underground mining depth increases, the gas gauge phenomena have occurred, and it brings the hidden danger to mine safety production. To coal seam that permeability coefficient is lower and gas drainage is difficult, it is very difficult to achieve the balance of digging, pumping and mining in the aspect of management. Therefore, directional hydraulic fracturing increased permeability technology was recommend to Wangxingzhuang coal mine, and the field experiment was conducted suc- cessfully ; the test result shows that the quantity of gas drainage increases substantially after hydraulic fracture and the effect of hydraulic fracturing increased permeability is very good.
Keywords：low permeabilityhydraulic fracturing increased permeabilitygas drainage
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 35-38 )