THE METHOD AND PRACTICE OF FRACTURING FOR LOW PERMEABILITY GAS RESERVOIRS IN PRODUCTION TAIL

In production tail of gas reservoirs, the formation pressure is reduced greatly. The production status becomes complicated. So, its difficulties of fracturing were increased. On the basis of the actual problems existent in Wen 23 gas field fracturing,proposed corresponding support fracturing methods which included fracturing technology of low pressure well ,separate layer fracturing technology, gas well fracturing technology in poor well status and refracturing technology. The technologies have achieved success in field application.