摘要
利用岩石评价仪(ROCK EVAL Ⅱ)对某凹陷30块生油岩进行了热解生烃和生烃动力学研究。在热解实验中,用类型指数、生烃潜量、最大热解峰温T_(max)、等指标对上侏罗统3个层位的生油岩进行了母质类型、成熟度和生烃能力评价,结果表明,母质类型好、有机质丰富的未成熟生油岩的热解生烃量要比相同的已成熟生油岩高得多,说明选择未成熟生油岩热解对评价其生油能力的重要性。在对另2个未成熟生油岩的热解模拟实验中,得到了生烃率与温度之间的关系,并由此计算了生油岩的表观活化能、频率因子等动力学参数。
A study on potential and kinetics of hydrocarbon (HC) generation of 30 source-rock samples from a certain hollow has been made by means of ROCK-EVAL technique. In the pyrolysis experiment , the source material types, maturation and genetic potential of source rocks from three Upper Jurassic horizons of that area have been evaluated in terms of such indicators as the type-index, genetic potential and maximum pyrolysis temperature (T_(max)). The results show that the pyrolysis HC yield of immatural source rocks is much higher than that of matural rocks when their source material quantity and content of organic matter are about the same,which suggests that it is important for evaluating the HC genetic potential to use immatural samples for pyrolysis. In the pyrolytic simulation experiments of other two immatural samples, the relationship between the hydrocarbon yield and temperature has been obtained,and on that basis the kinetical parameters of source rocks,such as reactional grades,activation energies and frequence factors were calculated.
出处
《地质论评》
CAS
CSCD
北大核心
1994年第S1期63-69,共7页
Geological Review
关键词
热解
岩石评价仪
生烃潜力
生烃动力学
活化能
pyrolysis
ROCK-EVAL
hydrocarbon genetic potential
hydrocarbon genetic kinetics
activation energy
