SILTSTONE PREVENTION TREATMENT TECHNOLOGY OF OIL PRODUCTION WELL IN TERTIARY PERIOD RESERVOIR IN THE NORTH OF HUABEI OILFIELD

The complex sand control method, which includes aciding, expansion control and fracturing, was adopted aim at the problems of artificial sidewall plugging, pump detection frequently with draining mud and sand during the sand control operation. New technology was used to the well of draining mud and sand with carbide cave and double fixed cave of pump. The new model sand control pump was also used. After field testing, evidence social effect and economic effect has gained.