Technical Principle

High-strength permanent magnets are used to magnetically saturate the pipeline wall. When defects such as corrosion, cracks or deformation exist on the pipe wall, magnetic field lines leak from the defect areas to form a magnetic flux leakage field. A Hall sensor array collects the leakage magnetic signals, and precise identification of defect type, size and location is realized after professional data processing.

Core Strengths

▪ Suitable for various transmission media including crude oil, natural gas and water, unaffected by medium transparency

▪ Single inspection distance up to 350km, capable of detecting defects with a minimum depth of 3.9% of the pipe wall thickness

▪ High data reliability with axial positioning accuracy of ±0.08m and circumferential positioning accuracy of ±8.55°

▪ Able to pass through bends with a 1.5D minimum radius of curvature, adapting to complex pipeline working conditions

Core Equipment

▪ Tri-Axis High-Definition MFL Inspection Tool: Integrates ID/OD defect identification function, with a lightweight structure for smooth pipeline passage

▪ Variable Diameter MFL Detector (10/12 inches): Adapts to different pipe diameters without frequent equipment replacement

▪ Extra-Thick Wall MFL Detector (25mm): Meets inspection requirements for thick-walled pipelines

Application Scenarios

Defect inspection for metal loss, corrosion pits, circumferential cracks and other damages on subsea long-distance pipelines, onshore oil and gas trunk lines, and pipelines with wax, sand or scaling buildup.

Technical Principle

Based on the pulse reflection characteristics of ultrasonic waves, ultrasonic waves emitted by the probe propagate inside the pipe wall and reflect back from the inner and outer walls respectively to form echo signals. By calculating the time difference of echoes, the remaining wall thickness is measured directly, and defects on the inner wall, outer wall and inside the pipe wall are distinguished, with clear defect contour presentation.

Core Strengths

▪ High inspection accuracy: defect depth accuracy of ±0.2mm, length/width accuracy of ±4mm, enabling direct defect size quantification

▪ Phased Array Ultrasonic Technology (3mm probe spacing): improves lateral resolution and detects tiny corrosion pits

▪ Strong adaptability, supporting inspection for deepwater pipelines (1km depth) and extra-long pipelines (345km)

▪ No pipe wall magnetization required, unaffected by pipe magnetic properties, with simple and intuitive result interpretation

Core Equipment

▪ Phased Array Ultrasonic Internal Inspection Tool: Integrates multi-channel probes, compact size and high integration

▪ Bi-Directional Ultrasonic Detector (12 inches): Supports bi-directional pipeline inspection to improve efficiency

▪ Puncture Arm Ultrasonic Inspection Tool: Adapts to complex inner pipe wall environments with high probe fitting performance

Application Scenarios

Inspection for wall thickness reduction, stress corrosion cracks and weld defects on precision industrial pipelines, subsea deepwater pipelines and high-pressure water injection pipelines.

Geometric Inspection

Technical Principle:Mechanical calipers or electronic sensor arrays are used to measure key geometric parameters in real time, including inner diameter, ovality, bending radius and settlement of the pipeline, to assess pipeline deformation conditions.

Core Strengths:Identifies pipeline deformation risks in advance, provides passability verification for MFL and ultrasonic inspection equipment, and prevents equipment blockage inside the pipeline.

Application Scenarios:Pipeline construction quality acceptance, deformation assessment of aged pipelines, and geometric condition inspection for pipeline crossing sections.

Leakage Inspection

Technical Principle:Integrates three technologies: negative pressure wave (sudden pressure drop signal at leakage point), infrasound (vibration generated by leakage jet) and flow balance (flow difference between inlet and outlet), to realize multi-dimensional leakage judgment and accurate positioning.

Core Strengths:High sensitivity: leakage detection sensitivity > 0.5%, response time < 2 minutes, positioning accuracy < 1% of pipeline length, false alarm rate < 2%, supporting online real-time monitoring.

Application Scenarios:Leakage early warning and rapid positioning for long-distance oil and gas pipelines, urban gas pipelines and storage tank external transmission pipelines.

Technical Principle

A remotely controlled smart crawling robot equipped with a high-definition waterproof camera and lighting module enters the pipeline. The robot moves adaptively along the pipeline route and transmits high-definition real-time footage of the inner pipe wall to the ground terminal. The terminal displays, stores and analyzes the footage synchronously, directly identifying internal defects, foreign objects, blockages and other problems, while recording inspection location information.

Core Strengths

▪ High visibility with directly visible defects, easy result judgment and traceability

▪ Full remote operation, no personnel entry into the pipeline, eliminating risks of confined space operations

▪ Non-excavation and non-shutdown operation, low inspection cost and high construction efficiency

▪ Adapts to DN100-DN2000 pipelines of various diameters and materials, with wide working condition compatibility

▪ Portable and easy-to-deploy equipment, supporting inspection for complex pipeline routes (bends, variable diameter pipes)

Core Equipment

▪ Smart Crawling Robot: Equipped with 4K high-definition camera, 360° rotating lens, lighting and obstacle avoidance functions

▪ Signal Transmission Cable: Integrates power supply, control signal and image data transmission, tensile and wear-resistant

▪ Ground Control Terminal: Supports remote robot movement, lens zoom and real-time image storage

▪ Auxiliary Cable Rack: Facilitates long-distance pipeline inspection and reduces cable wear

Application Scenarios

Appearance defect inspection for municipal water supply and drainage pipelines and urban gas pipelines; community pipeline fault positioning; industrial park process pipelines; condition assessment before aged pipeline renovation; and quality acceptance after pipeline rehabilitation.

Technical Principle

A specialized pressurized non-shutdown inspection technology designed exclusively for water supply systems. A dedicated inspection robot equipped with high-sensitivity acoustic hydrophones, high-definition waterproof cameras and positioning beacons is sent into operating pressurized pipelines through wellheads. The hydrophone collects characteristic ultrasonic signals from leakage points, while the camera synchronously transmits visual footage of the inner pipe wall. After interference filtering through professional noise reduction algorithms, combined with positioning beacons and umbilical cable length, precise positioning and judgment of leakage points and inner wall defects are realized.

Core Strengths

▪ Pressurized and non-shutdown operation, maintaining normal water supply throughout the inspection process with no supply interruption, suitable for urban water supply demands

▪ High leakage detection accuracy, identifying tiny millimeter-level leakages with no missing detection of inner wall defects

▪ Professional noise reduction algorithm, effectively suppressing interference signals from water flow, valves and ambient environment, with strong anti-interference capacity

▪ Positioning accuracy of ±0.5m, single inspection distance up to 2km, high inspection efficiency

▪ Multi-functional integration, capable of inspecting leakage, inner wall corrosion/scaling, pipeline route deviation and air pockets inside pipelines simultaneously

▪ High-pressure resistant design, adapting to 0.1-1.6MPa water supply pipelines with wide working condition coverage

Core Equipment

▪ Pressurized Inspection Robot: Waterproof and high-pressure resistant, integrating acoustic, visual and positioning sensors

▪ High-Sensitivity Hydrophone: Precisely collects leakage ultrasonic signals with wide response frequency coverage

▪ High-Pressure Resistant Umbilical Cable: Integrates power supply, data transmission and positioning functions, suitable for pressurized water environments

▪ Ground Data Analysis Terminal: Equipped with noise reduction algorithm, realizing acoustic-visual data fusion analysis and precise positioning

▪ Special Wellhead Launching Device: Facilitates safe robot delivery into pressurized pipelines without excavation

Application Scenarios

Leakage inspection for urban main and secondary water supply pipelines; safety monitoring for high-pressure water supply networks; uninterrupted water supply pipelines in industrial parks; pre-renovation assessment for aged municipal water supply pipelines; precise troubleshooting of water supply faults; and community secondary water supply pipeline inspection.