Using the character of "Chuan川" as the source,it refers to the meaning of continued flow without any stop.

The genetic types of the reservoir sandstones from the Xujiahe Formation in the central-southern Sichuan transitional zone;

Thinking of Sichuan Wenchuan Great Earthquake Psychology Crisis Intervention;

The situations of downhole in Sichuan-Chongqing Areas is complicated, the case has multiple levels and the ratio to enlarge well diameter is small, all these lead to the constructing problem of small gap between case and well wall, so it is easy to result in bridge-up in casing and lost etc.