Abstract: Thermal simulation experiments were carried out on whole rock samples and isolated keragens from limestones of Qinglong Fm., Triasic, south Jiangsu province and of Tieling Fm., Middle Proterozoic, north Hebei province. The gaseous products, extracts were subjected to analysis using a series of techniques which include carbon isotopic analysis (MS), gas chromatography (GC), liquid chromatography (LC),infrared spectroscopy(IR),nuclear magnetic resonance (¹H-NMR), elemental analysis (EA),Rack Eval pyrolysis, thermal gravimetric analysis (TGA), X-ray refraction (XRD),electron spinning resonance (ESR) and some optical methods tvitrinite Ro, bittumen Ro and kerogen coloration). Based on the above work, the thermal evolution of carbonate source rock was characterized and some criteria were proposed for the determination of the lower boundaries of oil phase and that of the condensate-wet gas phase. These cxiteria may be used for maturity evaluation in the carbonate petroleum provinces. A comparison between the results of whole rock and isolated kercagen pyrolysis shaves that the maturation process of kerogen within the rock matrix is slightly slower than that of isolatea kerogen.

摘要： 本文对苏南三迭系青龙组石灰岩干酪根、冀北中元古界铁岭组白云质灰岩岩样及从中分离出的干酩根进行了热模拟实验.用同位素质谱、气相色谱、液相色谱、红外光谱、核磁共振、元素分析、热解、热重、X-衍射、顺磁共振和光学方法对热模拟所得气态产物、抽提物及干酪根进行了分析,获得了对碳酸盐生油岩热演化规律的认识,给出了碳酸盐生油岩成熟度评价的成熟阶段下限和高成熟阶段下限的标准,供碳酸盐岩分布区油气评价工作参考使用. 铁岭组岩石样品和干酪根样品热模拟结果的对比表明,干酩根在岩石中热演化稍慢于分离出来的干酩根热演化.