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卢燕,杨凯,修连存.基于近红外光谱技术的烃类与粘土矿物识别及其地质意义[J].地质通报,2017,(10):1884-1891.
基于近红外光谱技术的烃类与粘土矿物识别及其地质意义    点此下载全文
卢燕1  2  杨凯2  修连存3
1. 中国地质大学 (北京)
, 北京 100083;
2. 中科遥感科技集团有限公司, 天津 300384;
3. 中国地质调查局南京地质调查中心, 江苏 南京 210016
基金项目:国防科工局项目《GF-5卫星数据岩矿信息定量反演与矿床蚀变信息智能化识别技术》(编号:04-Y20A35-9001-15/17)和科技部项目《岩心光谱扫描仪研发与产业化》(编号:2012YQ050250)
DOI:
摘要:
      沉积岩中自生粘土矿物受成岩过程中物化条件控制,是成岩系统物化条件的指示。近红外反射光谱技术对粘土矿物反应灵敏,在金属矿产勘探中已经得到了日益广泛的应用。首次对油气勘探地质井的试验工作,验证了近红外光谱数据不仅可以第一时间从岩石样品中直接提取微量烃信息,还能解译详细的粘土矿物组合及其变化,从而获取对油气勘探有价值的成岩温度和热成熟度信息。对鄂尔多斯富县地区试验样品的数据分析表明,生油和储油层中的粘土矿物组合(包括铵伊利石、绿泥石、高岭石)变化直接反映了成岩和构造演化物化条件的变化,对于全面理解盆地的环境条件并且判断油气生成的有利区位具有实际应用意义。
关键词:近红外反射光谱  粘土矿物      热成熟度
Identification of hydrocarbon and clay minerals based on near-infrared spectroscopy and its geolog-ical significance    Download Fulltext
LU Yan1  2  YANG Kai2  XIU Liancun3
1. China University of Geosciences, Beijing 100083, China;
2. China RS Geoinformatics Co., Ltd., Tianjin 300384, China;
3. Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China
Fund Project:
Abstract:
      Authigenic clay minerals are controlled by, and therefore indicative of, physiochemical conditions of the diagenetic process. In oil and gas exploration, timely acquisition of the information on clay minerals and hydrocarbon is of direct application value in terms of understanding the evolution process and diagnosing the existence of hydrocarbon. The experimental work reported in this paper has shown that near-infrared reflectance spectroscopy is useful for extracting the information on hydrocarbon present in a mi-nor to trace amount in sedimentary rocks and detecting the fact that the spatial variations of a series of clay minerals such as (ammoni-um-bearing) illite, chlorite and kaolinite can directly reflect the changes in temperature and pore fluid composition during the diage-netic process. The results obtained by the authors, therefore, will contribute to improving the understanding of environmental condi-tions and thermal maturity of organic matter in diagenesis.
Keywords:near-infrared reflectance spectroscopy  clay minerals  hydrocarbon  ammonium  thermal maturity
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