Experimental Study on Fracture Extension Range of Deep Hole Pre-splitting Coal Body by Carbon Dioxide Fracturing Device
WANG Zilei
Abstract：In order to obtain the influence radius of deep-hole pre-eraeking by tandem type commection of carbon dioxide fracturing devices,two groups of experiments were carried out in No.3 coal seam of a coal mine in Shanxi province to study the influence radius under two different working conditions of extraction area and non-extraction area,and combined with the theoretical calculation,the results were analyzed.The results show that the influence radius is about 5 m when the drilling depth is 100 m through tandem type eommection of carbon dioxide fracturing devices.It provides a strong technical support for the fracturing and perme ability improvement design and field construction.
Keywords：CO2 fracturing devicedeep hole pre-crackinggas drainagefracture expanding rangeinfluence radius
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 24-27 )