Forecasting methods of difficulty of coalbed methane well fracturing: with Hancheng area as example

To predict the difficulty of coalbed methane(CBM) well fracturing is the most important issue in CBM well fracturing program. There is no perfect system for predicting CBM well fracturing at home and abroad. In this paper, we discuss the hydraulic fracturing of coalbed methane well in Hancheng block. Some regular patterns are concluded through the analysis of well logging data. We fit the data by SPSS software and get the estimation formula about the difficulty of hydraulic fracturing. This paper has some reference value.