The Investigation and Research of Regular Pattern of the Geogas Radon Release in City;

A Technique for Detecting Concealed Deposits by Combining Geogas Particle Characteristics with Element Concentrations

A review with 25 referenaces is given on the developmental process of the geogas prospecting method,with emphases on the contribution by Chinese researchers.

Geological features of the napped belts of southern margin of Eastern Qinling Mountains and its significance in petroleum geology;

On the application of underground coal gasification technology in Zhundong coal field in Xinjiang

The power generation by using underground coal gasification technology can provide marked economic benefit and social benefit through demonstration project practice.

After the geogas survey was adopted in ore exploration in Heihe basin in.

Adiscussion is also given on the prospects of applying geogas survey to the prospecting of concealed deposits and the exploration of rock types beneath transported overburden.

A comparative survey was conducted in the Dayingezhuang Gold Ore Deposit, a typical hidden ore deposit with a buried depth of 200 m, by using selective leaching of mobile forms of metals in overburden (MOMEO), geogas method (GEOGAS), geoelectro-chemical method (CHIM) and total soil survey, so as to prove the effectiveness of the deep-penetrating geochemical methodology.

This paper describes the results obtained by a comparison of the measurement of mobile metals in overburdens, separatory electrogeochemistry, geogas measurement and soil measurement.

Study on underground gasification test of gently inclined thin seam;

Based on the model test, the regularity of Dongshan coal underground gasification was obtained.

Based on the model experiment of underground gasification of Dayan brown coal, the gasification technology of "pure oxygen", "rich oxygen-steam", "air-steam, two stages" for producing hydrogen were researched.