Function: defecate sands, rust. copper, besmirch cutting off peculiar smell, high quality waterzone.
功能：滤除沙石、铁锈、铜锈、磷污染等；去除异味。适合用于水质较好的地区。
2
In the drilling of 19 + 2 gas well project in Iran, comprehensive logging data is re-interpreted to study a set of method for waterzone identification.
The key factors causing soil dried layers are great thickness and depth of membrane waterzone under ground as well as small thickness of gravity waterzone.