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Thermoevolutional Characteristics of Hydrocarbon Generation from Barkinite,Late Permian Coals in Shuicheng,Guizhou Province

SUN Xuguang\ WANG Guanyu (Department of Geology,Peking University,Beijing,100871) JIN\ Kuili (Beijing Graduate School,China University of Mining and Technology,Beijing,100083)  
The Late Permian coal from southern China are unique in high content of barkinite and element hydrogen,as well as significant hydrocarbon\|generation potential.In this paper,Rock\|Eval,Py\|Gc and MPV\|3 were used to study the hydrocarbon\|generation potential,the hydrocarbon composition,hydrocarbon\|generation mechanism and thermoevlutional characteristics of barkinite in open system simulation.The results indicate that barkinite has higher hydrocarbon\|generation potential,the values of hydrocarbon\|generation potential (S\-1+S\-2) is 297 1?mg/g;light hydrocarbon,wet gas and alkene are the main composition of hydrocarbon;the temperature range of hydrocarbon producting is at 400~450℃,the temperature range of hydrocarbon generation peak is at 420~450℃.These studies demonstrate that barkinite is one of the better macerals for petroleum generation. These studies will have greater values for exploring oil formation from coal from Late Permian coal in southern China.
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