CAUSE ANALYSIS ON SAND PLUG IN FRACTURING TREATMENT OF M GAS RESERVOIR

In the process of fracturing operation,sand plug will affect the effects of fracturing and cause serious economic loss.This paper analyzed the causes of sand plug in fracturing treatment by considering the factor of formation,fracturing fluid,fracturing pumping and fracturing design.On the basis of sand plug status in six fracturing wells of M gas reservoir,the reasons of sand plug according to curves of fracturing treatment and logging,log interpretation,design and operation parameter had been analyzed.Meanwhile,the concrete suggestions were proposed for preventing sand plug.Understanding and suggestions for the reason of sand plug have very high value to subsequent design and operation in fracturing treatment of M gas reservoir,and it is of practical meaning to fracturing treatment of similar low permeability sandstone reservoir.