Test and Application of High Energy Gas Fracturing Technology of Multi- pulse Shallow Coal Reservoir

Aimed at Chinese CBM reservoir characteristics and the development of current situation and based on the mechanism of high energy gas fracturing and research Foundations,an experimental study is conducted on the high- energy gas fracturing technology which is suitable for the development of Qinshui Basin CBM. Coalbed gas reservoir resources in the area is rich,the coal reservoir( burial depth less than 1000m) for shallow coal reservoir with low porosity,low permeability,etc.,at present mainly in the hydraulic fracturing gas reservoir reached the production yield. In view of the development of coalbed methane in hydraulic fracturing effect is not obvious,the problem of two fracturing stimulation effect is not ideal,the design of application of test and the exploration of coalbed gas reservoir fracturing technology of multi pulse. Focuses on the shallow coal seam gas fracturing technology design method of multi pulse,charge structure design,mechanism and process design,and full closed wellhead multi- pulse fracturing design,summarizes and analyzes the deficiency of the test experiment of the effect of application of well site in three and the existing. The technology of application test of success for our country can provide production technology and new way of shallow coal- bed methane fracturing development.