石油实验地质2016，Vol.38Issue(5)：665-671,678,8.DOI:10.11781/sysydz201605665
不同模拟实验条件下烃源岩生油气能力对比及意义
Hydrocarbon generation potential under different experimental conditions and its petroleum geology significance
摘要
Abstract
Hydrocarbon generation rate and process and the geochemical characteristics of experimental products were compared between formation porosity thermocompression simulation and conventional autoclave simulation of hydrocar⁃bon generation and expulsion. Different experimental conditions of the two methods resulted in various discrepancies of pyrolysis analysis data. At the same temperature, the oil and gas production rate of formation porosity thermocompres⁃sion simulation is twice of that of the conventional autoclave simulation. Free hydrocarbon (S1), hydrocarbon genera⁃tion potential (S2) and hydrogen index (IH) of solid products of the thermocompression experiment are higher than those of the autoclave experiment. In a conventional autoclave experiment, high temperature not only accelerates C⁃C bond cleavage to form hydrocarbon, but also generates bitumen, CO2 and H2 , which deviates from the natural evolu⁃tion of source rocks. The experimental conditions ( higher fluid pressure, smaller hydrocarbon generation room filled with liquid water) in the formation porosity experiment are more similar to the conditions of real geological evolution. Experimental data show that gas and oil yield is much larger than hydrocarbon potential in the thermocompression experi⁃ment, and the solid products after the experiment still have a high hydrogen index. As a result, hydrogen index and hydrocarbon yield in laboratory experiments fail to estimate the real hydrocarbon potential of source rocks. Accordingly, an Oil and Gas Index (OGI) is proposed to estimate the maximum hydrocarbon potential of source rocks.关键词
地层孔隙模拟/高压釜模拟/边界条件/岩石热解/油气指数Key words
formation porosity thermocompression experiment/conventional autoclave experiment/boundary condition/Rock-Eval pyrolysis/Oil and Gas Index分类
能源科技引用本文复制引用
张彩明,郑伦举,许锦..不同模拟实验条件下烃源岩生油气能力对比及意义[J].石油实验地质,2016,38(5):665-671,678,8.基金项目
国家重点基础研究发展计划（973计划）项目（2014CB239102）和中国石化青年科技创新基金（P14132）资助。 （）
