Abstract: The sanding phenomenon is more frequent with the development of oil and gas exploitation.Rocks in deep gas reservoir have a good stability，the rock will not be broken unless there is an inconsistent producing pressure，and the reservoir will produce sand in such a condition.Thus，it is very important to calculate the pressure accurately.For this reason，this paper establishes the calculating model of the critical production pressure which can be used for sanding analyzing，and choosing the best completion method.This can lay a foundation for the decision-making of sand controlling and production increasing.

Key words: deep gas reservoir, well logging data, production pressure difference, sand production analysis, completion method