Standardized controlled testing of advanced methane detection technologies (solutions) has been identified as a step in demonstrating the emissions mitigation equivalence between these solutions and existing regulatory-approved leak detection and repair methods (e.g., ground-based optical gas imaging [OGI] camera survey) in the US and Canada. In this study, 12 solutions consisting of 4 handheld OGI cameras, 4 advanced handheld systems, and 4 mobile (automobile- and drone-based) solutions were tested under a single-blind controlled testing protocol at different periods between 2021 and 2023 at an outdoor test facility that simulates emissions from a simple, onshore North American production oil and gas (O&G) facility. Three solutions were tested again 3–12 months after the first test, using the same test protocol and facility to assess how performance changed over time. Results showed that handheld OGI cameras had comparable or better performance in terms of lower 90% probability of detection (DL90), false positive and negative fractions, and higher equipment unit-level localization performance compared to other categories of solutions tested. Advanced handheld solutions had comparable performance with the OGI cameras across all metrics except false positive fraction (much higher), while mobile solutions generally had shorter survey durations compared to other solutions. For solutions that tested twice, the performance of 2 of 3 solutions generally improved, illustrating the benefit of regular, comprehensive testing in the development of solutions. The different value propositions inferred from the various categories of solutions tested suggest that mobile solutions can rapidly survey larger areas to inform more targeted, follow-up inspections with handheld solutions. While advanced handheld solutions can be as effective as OGI cameras, mobile solutions have some difficulties to overcome to make them directly comparable or need to have a different use case.

中文翻译：

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在单盲对照测试协议下调查解决方案的性能。


先进甲烷检测技术（解决方案）的标准化受控测试已被确定为证明这些解决方案与美国和加拿大现有的经监管批准的泄漏检测和修复方法（例如，地面光学气体成像 [OGI] 相机调查）之间的减排等效性的一个步骤。在这项研究中，由 4 台手持式 OGI 热像仪、4 台高级手持系统和 4 台移动（基于汽车和无人机）解决方案组成的 12 种解决方案在 2021 年至 2023 年的不同时期在模拟简单的陆上生产石油和天然气 （O&G） 设施排放的室外测试设施中进行了测试。在第一次测试后 3-12 个月再次测试了三种解决方案，使用相同的测试方案和设备来评估性能如何随时间变化。结果表明，与测试的其他类别的解决方案相比，手持式 OGI 热像仪在较低的 90% 检出概率 （DL90）、假阳性和假阴性分数以及更高的设备单元级定位性能方面具有相当或更好的性能。先进的手持式解决方案在所有指标上都与OGI热像仪的性能相当，但假阳性率（高得多）除外，而与其他解决方案相比，移动解决方案的调查时间通常较短。对于测试了两次的解决方案，3 个解决方案中有 2 个的性能通常会有所提高，这说明了在开发解决方案时定期进行全面测试的好处。从测试的各种解决方案类别中推断出的不同价值主张表明，移动解决方案可以快速勘测更大的区域，以便使用手持式解决方案进行更有针对性的后续检查。 虽然先进的手持式解决方案可以与 OGI 摄像机一样有效，但移动解决方案需要克服一些困难才能使其直接比较或需要具有不同的用例。