THE HYDROCARBON GENERATING POTENTIAL AND CONTRIBUTION OF HYDROGEN RICH MACERAL IN LONGTAN COAL BEARING FORMATION, LIUPANSHUI AREA, GUIZHOU PROVINCE

Based on the study of organic geochemistry and organic lithology,this paper mainly discussed the question of the hydrocarbon generating potential and contribution of hydrogen-rich maceral in Liupanshui area,Guizhou province.The authors analysed relationship between composition of hydrogen rich maceral and hydrocarbon generating quantity and put forward one method for calculating hydrocarbon generating contribution.It can be concluded that there is close relationship between composition of hydrogen rich maceral and hydrocarbon generating quantity,and esmocollonite pay more contribution to the hydrocarbon generating process.The hydrocarbon generating potential is the qualitative criterion and the hydrocarbon generating contribution is the quantitative criterion.Therefore hydrocarbon generating contribution can be acted as the important criterion for evaluation of hydrocarbon generation of organic matters.