Abstract: From the angle of soil and rock mechanics，analyses the sand production reasons in oil well in Xinli oilfield，also analyses the harms to oilfield from stratum，well condition and development，the sand producing is serious in the oil well，it makes the operation frequency increase，the pump inspection period become shorter and the production stop，these restrict the producing of the oil field. Researches the sand production mechanism and casing sand control technology，develops a new type of sand control casing column. Carries out the data analysis on the new sand control technology. Respectively introduce the using condition of the simple sand producing well，sand producing well with few mud and sand producing well with much mud，after using the technology ，it reduces the maintenance operation times and prolongs the pump inspection period.

Key words: sand production, sand control casing, pump inspection period