The Simulation Experiment on Gas-Generating Potential of Over-Mature Source Rocks
详细信息
- 责任者：Wang Dongliang (Research Institute of Petroleum Exploration and Development-Langfang ; Langfang 065007 ; China) ; Zhang Ying
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(6)
- 关键词：烃源岩 ; source rocks ; 生烃潜力 ; hydrocarbon generating potential
- 页码：p.1172-1179
- 图表：3 illus., 1 table, 8 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
As for the gas-generating potential at the over-mature stage,the authors used the Rock-Eval rock pyrologger and TG-MS high-temperature pyrogenating simulated experiment device to carry out a series of experiment and research.The results show that a large amount of natural gas can be generated at the over-mature stage(Ro≥2.5)for coal and carbonaceous mudstone,and the volume can account for 20%,or even more. The low limit of Ro extend to 5.0%.The generated gas volume stops increasing when the temperature is larger than 800 ℃,so the simulation temperature 800 ℃ will be enough for the gas-generation reflection.