• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Next-Generation Spectroscopic Technologies X >Scanning, standoff TDLAS leak imaging and quantification
【24h】

Scanning, standoff TDLAS leak imaging and quantification

机译：扫描，对峙TDLAS泄漏成像和定量

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper reports a novel quantitative gas plume imaging tool, based on active near-infrared Backscatter Tunable Diode Laser Absorption Spectroscopy (b-TDLAS) technology, designed for upstream natural gas leak applications. The new tool integrates low-cost laser sensors with video cameras to create a highly sensitive gas plume imager that also quantifies emission rate, all in a lightweight handheld ergonomic package. It is intended to serve as a lower-cost, higher-performance, enhanced functionality replacement for traditional passive non-quantitative mid-infrared Optical Gas Imagers (OGI) which are utilized by industry to comply with natural gas infrastructure Leak Detection and Repair (LDAR) requirements. It addresses the need for reliable, robust, low-cost sensors to detect and image methane leaks, and to quantify leak emission rates, focusing on inspections of upstream oil and gas operations, such as well pads, compressors, and gas plants. It provides: 1) Colorized quantified images of path-integrated methane concentration. The images depict methane plumes (otherwise invisible to the eye) actively interrogated by the laser beam overlaid on a visible camera image of the background. The detection sensitivity exceeds passive OGI, thus simplifying the manual task of leak detection and location; and 2) Data and algorithms for using the quantitative information gathered by the active detection technique to deduce plume flux (i.e. methane emission rate). This key capability will enable operators to prioritize leak repairs and thereby minimize the value of lost product, as well as to quantify and minimize greenhouse gas emissions, using a tool that meets EPA LDAR imaging equipment requirements.
机译：本文报告了一种基于主动近红外反向散射可调谐二极管激光吸收光谱（b-TDLAS）技术的新型定量气羽成像工具，该工具专为上游天然气泄漏应用而设计。新工具将低成本的激光传感器与摄像机集成在一起，从而创建了一个高度灵敏的气体羽流成像仪，该成像仪还以轻巧的手持式人体工程学套件对排放率进行了量化。它旨在用作传统无源非定量中红外光学气体成像仪（OGI）的低成本，高性能，增强功能替代品，传统的无源非定量中红外光学气体成像仪（OGI）已被业界用来符合天然气基础设施的泄漏检测和修复（LDAR） ） 要求。它满足了对可靠，可靠，低成本的传感器的需求，以检测和成像甲烷泄漏并量化泄漏排放率，重点是对上游油气作业（如井板，压缩机和天然气厂）的检查。它提供：1）路径积分甲烷浓度的彩色量化图像。这些图像描绘了甲烷烟羽（否则对眼睛不可见）被覆盖在背景的可见相机图像上的激光束主动询问。检测灵敏度超过被动OGI，从而简化了泄漏检测和定位的手动任务； 2）数据和算法，利用主动检测技术收集的定量信息来推断羽流（即甲烷排放速率）。此关键功能将使操作员能够使用满足EPA LDAR成像设备要求的工具，优先安排泄漏维修的优先级，从而最大程度地减少产品损失的价值，并量化和最小化温室气体的排放。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号