This invention describes a strip associated with a pipeline, wherein the strip is located on the surface of the pipeline or molded into the pipeline and variation in capacitance across the strip indicates a discontinuity in the pipeline. This invention discloses the strip comprising of a top layer of insulation, a first metallic strip, a dielectric layer, a second metallic strip and a bottom layer of insulation.
Figure 1. A Pipeline Leak Detection System with a whole new novel concept
Current pipeline monitoring systems are often costly, complex, and invasive, requiring extensive infrastructure or internal access to detect leaks or damage. There is a need for a low-cost, reliable, and externally mounted solution that can provide real-time detection of pipeline discontinuities such as leaks, cracks, ruptures, or tampering.
- Capacitance-Based Strip Sensor: The technology uses a flexible strip that detects changes in capacitance to monitor the condition of pipelines externally, without requiring internal contact with the fluid.
- Real-Time Damage and Leak Detection: Physical damage such as leaks, cuts, or bending causes a measurable drop in capacitance, enabling immediate detection and faster maintenance response.
- Fluid Type Differentiation: It distinguishes between water, air, or empty conditions inside the pipeline by analyzing the dielectric properties, improving diagnostic capability.
- Low-Cost and Scalable Design: It is built from affordable materials and using widely available sensors like ESP32 or AD7746, the technology is economical and suitable for large-scale deployment.
- Compatibility with Various Pipe Materials: It functions effectively on both metal and plastic pipelines, thanks to its external, non-invasive sensing method based on fringe capacitance.
- Easy Integration with Smart Infrastructure: It can be integrated with IoT platforms and smart monitoring solutions, supporting structural health diagnostics in modern infrastructure systems.
A 1-meter-long prototype was developed using metal layers and an insulating dielectric material to create a capacitance-based strip sensor. Capacitance sensors such as the AD7746 and ESP32 with analog interface were used for data acquisition. The prototype was tested under various conditions, including different overlap lengths to simulate damage, varying fluid contents inside the pipe (such as water, air, or empty), and external bending or cutting of the strip. Results demonstrated a strong correlation between a drop in capacitance and the presence of physical damage, validating the sensor's effectiveness.
Currently, proof of concept of the proposed technology has been done and documented. Next, a full-scale model of the technology can be developed and implemented physically in live pipelines. Such a successful implementation can draw attention and develop trust of the concerned bodies like ONGC, NRL, etc. A live demonstration of the full-scale deployment of the technology is a must to qualify and implement the technology, along with safety certifications.
6
The proposed capacitance-based pipeline monitoring system enhances safety, environmental protection, and infrastructure reliability by enabling early detection of leaks, cracks, or tampering. It prevents hazardous accidents, reduces resource wastage, and minimizes environmental contamination. Its low cost and ease of installation make it ideal for remote or resource-limited areas, while real-time monitoring supports rapid response, contributing to public safety and national security.
- Oil and Gas pipelines
- Water supply systems
- Chemical processing plants
- Underground utility networks
- Smart cities and infrastructure
- Defense and security applications
- Industrial automation and safety monitoring
Geography of IP
Type of IP
202021022853
560124