Infra-Red Emission Spectroscopy Study of Thermal Evolution of Organic Matter Bound by Clay Minerals in Muddy Hydrocarbon Source Rocks
详细信息
- 责任者：Lu Longfei (School of Earth Science ; Nanjing University ; Nanjing 210093 ; China) ; Cai Jingong
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(2)
- 关键词：烃源岩 ; source rocks ; 有机质演化 ; organic material evolution ; 红外光谱 ; infrared spectra ; 济阳坳陷 ; Jiyang Depression
- 页码：p.215-222
- 图表：4 illus., 3 tables, 41 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
To examine the thermal evolution of and the influence of organo-clay interaction on organic matter bound by clay minerals in muddy source rocks,the authors studied the <2 μm particle-size fractions extracted from hydrocarbon source rocks in Neocene,Jiyang Depression,eastern China,using infra-red emission spectroscopy(IES).The results show that the vibration peaks of methylene and methyl representing aliphatic chain decrease with the increasing of temperature,and lateral chains are easily to subject to oxidation than main chains.IES study reveals that organic matter bound by clay minerals generates hydrocarbon mainly through aromatization of aliphatic compound,which is a quite useful method for source rocks thermal evolution study.