地下天然气管道泄漏的先进泄漏检测方法:在不同的环境和操作条件下进行评估
Venkata Rao Gundapuneni1, Jui-Hsiang Lo2, Daniel J Zimmerle3
1Department of Civil and Environmental Engineering, Southern Methodist University, Dallas, Texas 75205, United States.
ACS omega
|February 16, 2026
概括
先进的泄漏检测方法在天然气基础设施方面取得了不同程度的成功. 步行调查在各种条件下是最可靠的,而驾驶和无人机调查在雪地和城市地区等具有挑战性的环境中扎.
科学领域:
- 环境科学 环境科学
- 地质物理学 地质物理学
- 工程 工程师 工程师 工程师
背景情况:
- 先进的泄漏检测 (ALD) 方法对于天然气 (NG) 基础设施的安全和减少甲 (CH4) 排放至关重要.
- 目前的ALD技术对地面泄漏有效,但由于复杂的地下气体迁移,对地下泄漏有限.
研究的目的:
- 在受控条件下实验评估ALD方法的性能.
- 评估各种环境和操作因素对泄漏检测检测概率 (POD) 的影响.
主要方法:
- 通过行走,驾驶和基于模拟无人机 (UAVsim) 的调查进行了全面的实验.
- 在各种条件下,在0.5,5,10分钟的泄漏率下进行测试:气体成分,土壤特性,城市几何,斜坡和雪地覆盖.
- 使用检测概率 (POD) 作为METEC和FERL两年的主要绩效指标.
主要成果:
- 步行调查在大多数条件下,包括雪地,潮湿的土壤和斜坡,始终实现高的POD (>90%).
- 驾驶和UAVsim调查显示在理想条件下POD高,但在雪和城市环境中显著减少 (>80pp).
- 气体成分,土壤透性和湿度对POD产生了重大影响,驾驶和UAVsim调查的显著减少.
结论:
- ALD方法的性能高度依赖于环境和操作变量.
- 步行调查为在复杂的现实场景中检测天然气泄漏提供了卓越的可靠性.
- 结果为优化ALD协议和调查策略提供了关键的见解.
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