App. of MRO in coalbed gas logging and several common problems;

The technology of fracturing fluid in CBM well;

The selection of gel breaker for clearing fracturing fluid in CBM well

The CBM wells are generally shallow and intersect multiple layers.

In Shaerhu Block of Tuha Basin, there is abundant coalbed methane resource trapped in depth from 600 to 900 m.

Production data of 25 coalbed methane wells of Jincheng, Lu an, Jiaozuo and Tiefa coalfields are used in a comprehensive study on permeability, gas saturation, condition of reservoir pressure drop-off, underground water system and energy system of coalbed methane reservoir.

Discussion on the method of history matching of coalbed methane well;

Discussion on technical problems for injection/fall-off well test in the coalbed methane well;

This paper analyzes the periodic station pressure and flow rate of the testing gas well, and connecting with the general production situation, fulfils the optimization of the plunge airlift working system.