摘要
Based on advantages and disadvantages of the fracturing fluids commonly used in coalbed methane, their performances are summarized, especial for foam fracturing fluids and clean fracturing fluids. Combining the laboratory data and the actual application effects, N2 is suitable for the foam fracturing fluids, and the performances of the clean fracturing fluids should be improved, mostly in synthesis condition ,and inside gel breaking technology should be studied to reduce the gel breaker amount and protect the environment.
