Project Spotlight: Laser-Based Gas Monitoring System at a South China Sea Terminal
Energy security is the bedrock of global development. As the core of the energy system, the oil and gas (O&G) industry’s safety and green operations are vital to supply chain stability, personnel safety, and environmental protection. With the expansion of offshore exploration in the South China Sea, O&G terminal treatment plants have become critical hubs. Consequently, preventing methane (CH₄) leaks has emerged as a cornerstone for regional operational safety.
A single undetected gas leak can lead to catastrophic consequences far exceeding equipment loss. Beyond the immediate threat to life from potential explosions, leaks result in resource waste, production downtime, environmental liabilities, and severe reputational damage. Globally, direct losses from such incidents can reach tens of millions of dollars, with unquantifiable indirect costs from halted production.
Traditional monitoring methods often suffer from limited coverage, delayed response, and heavy reliance on manual inspection. To address these industry-wide challenges, Tongxin Intelligent Technology (Tianjin)Co., Ltd. has deployed its proprietary Laser Gas Monitoring System at a major terminal in the South China Sea, providing a world-class digital-intelligent solution for O&G safety.
Technological Breakthrough: Overcoming Industry Bottlenecks
The project’s core competitiveness lies in Tongxin’s self-developed TDLAS (Tunable Diode Laser Absorption Spectroscopy) technology. This system has been deeply customized for the complex conditions of large-scale O&G terminals, proving the reliability of high-end monitoring equipment in core production scenarios.
Feature | Specification / Capability |
Detection Technology | TDLAS (High selectivity, zero cross-interference) |
Detection Range | 50 – 100,000 ppm.m |
Max Detection Distance | 150 meters (Fixed-point & Scanning) |
Response Time | ≤ 0.1s (Millisecond-level response) |
Coverage | 360° Horizontal / -90° to +90° Vertical |
Environment | Explosion-proof (Ex) certified for harsh O&G conditions |
By scanning the specific absorption lines of target gas molecules, the system achieves precise quantitative concentration measurement unaffected by other gases. The integrated high-precision field-of-view scanning and dual-channel (visible/laser) matching allow for comprehensive monitoring of units, pipelines, and valve connection points.
The system architecture features a lightweight, highly compatible "Front-end Ex-Terminal + NIOTEX Monitoring Workstation" framework. This integrated software platform handles video browsing, PTZ control, alarm queries, and data traceability. Upon triggering, the system executes an automated "Monitor-Alert-Analyze-Dispose-Trace" closed-loop:
•Real-time Alerts: Instant pop-ups and acoustic-optic alarms.
•Precision Localization: Automatic locking of leak coordinates.
•Trend Analysis: Real-time concentration data and diffusion modeling.
•Data Archiving: Full recording of snapshots and video for forensic analysis.
Full-Lifecycle Customization: A Blueprint for the Industry
As a vital node in regional energy production, this terminal adheres to safety standards exceeding industry norms. However, aging infrastructure and increasing process complexity necessitated a shift from passive manual checks to proactive intelligent monitoring.
Tongxin Intelligent’s technical team adopted a "Demand-Oriented, Scenario-Customized" approach, delivering a comprehensive turnkey solution:
1On-site Survey: Detailed mapping of plant layout, equipment distribution, and potential risk points.
2Stakeholder Engagement: In-depth consultation with management and O&M teams to align the system with existing workflows.
3Tailored Design: Custom planning for sensor placement, alert strategies, and platform integration.
4Pilot Validation: During the pilot phase, the system successfully identified potential leak points missed by manual inspections, immediately proving its value.
The seamless integration into the terminal’s safety management system has created a replicable and scalable model for large-scale O&G facilities worldwide.
Driving the Evolution of Safety Management
The implementation of this system marks a paradigm shift from "Human-Based Defense" to "Technology-Based Defense." Front-line personnel have transitioned from labor-intensive manual patrols to "Intelligent 24/7 Monitoring + Precision Intervention."
"The transition from blind inspections to data-driven precision operations significantly reduces labor costs and personnel exposure risks, modernizing safety management into a proactive, intelligent model."
Strategic Value & Global Impact
•Strengthening the O&G Supply Chain: By mitigating the risk of major accidents at core hubs, the project ensures long-term operational stability and global energy flow.
•Pioneering Safety Governance: The "Active Warning & Closed-Loop Control" model offers a practical roadmap for the global energy and chemical sectors to transition toward "Prevention-First" management.
•Supporting ESG & Carbon Neutrality: CH₄ is a potent greenhouse gas. Precise leak detection reduces fugitive emissions, aligning O&G operations with global climate commitments and sustainable development goals.
•Globalizing High-End Industrial Tech: The success of Tongxin’s TDLAS technology validates the maturity of Chinese-developed core safety equipment. This experience paves the way for large-scale application across the entire O&G value chain—from extraction and transport to refining—as well as in chemicals, mining, and gas utilities.
The successful operation of this project exemplifies the fusion of proprietary core technology with the safety needs of the global O&G industry. Moving forward, Tongxin Intelligent will continue to innovate in industrial safety monitoring, empowering the global energy sector with more precise, reliable, and intelligent solutions for a safe, green, and sustainable future.
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