纳秒激光诱导击穿光谱技术在岩屑样品元素分析中的应用

doi:10.3969/j.issn.1672-7703.2018.01.013

中国石油勘探 ›› 2018, Vol. 23 ›› Issue (1): 117-124.DOI: 10.3969/j.issn.1672-7703.2018.01.013

• 工程技术 • 上一篇

纳秒激光诱导击穿光谱技术在岩屑样品元素分析中的应用

杨明清¹, 王超², 阎治全³

1 中石化石油工程技术服务有限公司钻测录事业部;
2 天津陆海石油设备系统工程有限责任公司;
3 天津圣川软件开发有限责任公司

收稿日期:2017-01-03 修回日期:2017-10-16 出版日期:2018-01-15 发布日期:2018-01-04
基金资助:
中国石油化工股份有限公司科技攻关项目“钻井液核磁共振在线录井技术研究”（P13091）。

Application of nanosecond laser induced breakdown spectroscopy to elemental analysis of cuttings samples

Yang Mingqing¹, Wang Chao², Yan Zhiquan³

1 Drilling, Well Logging and Geological Logging Department, SINOPEC Petroleum Engineering and Technology Service Co., Ltd;
2 Tianjin Land & Ocean Petroleum Equipment Systems Engineering Co., Ltd;
3 Tianjin Shengchuan Software Development Co., Ltd

Received:2017-01-03 Revised:2017-10-16 Online:2018-01-15 Published:2018-01-04
Supported by:

摘要/Abstract

摘要： 纳秒激光诱导击穿光谱（ns-LIBS）技术是一种元素分析新技术，已逐步在各行业投入应用，与传统元素分析技术相比，具有分析速度快、可分析元素全、样品预处理简单等优势。利用自主搭建的ns-LIBS系统，对石油钻井中岩屑样品的元素组成和含量进行了定性与定量分析：确定了实验参数，特别是会聚透镜焦点与样品表面的相对距离；对不同岩性岩屑样品的激光诱导击穿光谱进行了比较，验证了标志性元素在含量上的区别；确定了镁、钠、硅等元素的外标法最佳分析线；采用层次分析法与图版分析法相结合以实现岩性的识别。研究表明，ns-LIBS技术可应用于对岩屑样品元素组成和含量的分析。

关键词: 纳秒激光诱导击穿光谱(ns-LIBS), 岩屑, 层次分析法, 图版分析法

Abstract: Nanosecond laser induced breakdown spectroscopy (ns-LIBS) is a new elemental analysis technology, and it has been gradually applied in various industries. It is superior to traditional elemental analysis technologies and it is advantageous with high analysis speed, simple sample pretreatment and availability for all elemental analyse. In this paper, the independently developed ns-LIBS system was used to analyze the elemental compositions and contents of cutting samples taken from oil wells qualitatively and quantitatively. First, experimental parameters were determined, especially the relative distance between the focus of convergent lens and the surface of sample. Second, the content difference of indicator elements was verified by comparing the LIBS of cutting samples with different lithologies. Third, the best analysis lines of external standard method for Mg, Na, Si, etc were defined. And fourth, the lithology was identified by means of analytic hierarchy process and chart analysis method jointly. It is indicated that ns-LIBS is applicable to analyze elemental compositions and contents of cutting samples.

Key words: nanosecond laser induced breakdown spectroscopy (ns-LIBS), cuttings, analytic hierarchy process, chart analysis method

中图分类号:

杨明清, 王超, 阎治全. 纳秒激光诱导击穿光谱技术在岩屑样品元素分析中的应用[J]. 中国石油勘探, 2018, 23(1): 117-124.

Yang Mingqing, Wang Chao, Yan Zhiquan. Application of nanosecond laser induced breakdown spectroscopy to elemental analysis of cuttings samples[J]. China Petroleum Exploration, 2018, 23(1): 117-124.

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纳秒激光诱导击穿光谱技术在岩屑样品元素分析中的应用

Application of nanosecond laser induced breakdown spectroscopy to elemental analysis of cuttings samples

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