煤成气生气量热模拟实验条件对比综述

热模拟实验不仅可以确定烃源岩的生烃能力和主生气期,还可研究主生气期与构造运动、圈闭形成时间的匹配关系,并以此确定研究区能否形成具有工业价值的煤成气藏。国内外很多学者都进行过热模拟实验的尝试,由于方法不同,热模拟结果差异很大。在总结前人成果的基础上,对实验过程中催化剂、水介质、温度、压力、排气方式、恒温时间等方面进行了实验条件的对比讨论,认为热模拟实验应采用未经酸化处理的样品,采用加水、加催化剂、开放体系排气、恒温时间较长的模拟过程,其热模拟结果才更接近于地下地质条件。

Summary of thermal simulating experimental conditions correlation of coal-related gas generating amount

ermal simulating experiment can nnot only determine hydrocarbon-generating capability and main gas-generating stage of source rocks, and but also research matching relationship among the main gas-generating stage, tectonic movement and trap formation time. Based on that, it is determined whether studying area may form coal - formed gas pool. Many domestic and overseas scholars did thermal simulating experiments, but the experimental results were vastly different for different methods. Based on precursors' effort, experimental conditions are contrasted and discussed in respect of catalyzer, adding water, temperature, pressure, venting manner, constant temperature time and so on. Consider that the thermal simulating test ought to adopt non-acid treatment sample, add water and catalyzer, exhaust in open system, keep long constant temperature in the simulation procees, so the thermal simulation result will more approach to the subsurface geological condition.