PRACTICE AND COGNITION OF STABLE OIL PRODUCTION INCREMENT OF OLD-WELL FRACTURING FOR 8 YEARS RUNNING IN SALAXING OILFIELD

This paper gives a discussion on technical measures adopted in Salaxing oil field,whose oil production increment of 9t per day for old-well fracturing keeps from dropping for 8 years(from l987 to 1994),and forecasts the changing tendency of production gain of old-well fracturing in 1995 and daring the Ninth Five-Year,and presents the effective measures to stabilize the oil production increment of old-well fractring.