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Subsea pipelines face multiple threats: scouring, free spans, third-party damage, and geohazards. Traditional single-method surveys fail to capture the full picture—geometry, morphology, burial depth, and risks—in one go.

Bluehole Instruments integrates "Surface-Line-Volume" 3D survey technology for full-coverage, high-efficiency, one-stop inspections.

A vessel-mounted multibeam maps wide-area terrain, followed by a towfish integrating side-scan sonar and sub-bottom profiler for detailed pipeline diagnostics—delivering comprehensive data from macro-topography and exposure to burial depth and geological risks.

Solution Value

  • 01

    Holistic Risk Assessment

    Simultaneously captures pipeline position, exposure/free-span status, seabed morphology, and shallow geology for systematic risk evaluation.

  • 02

    Cost-Effective Operations

    One vessel, one pass—replacing multiple conventional surveys—cuts project time and overall costs significantly.

  • 03

    Quantifiable Results

    Delivers precise 3D coordinates, free-span length/height, and burial depth data, providing a solid basis for maintenance, dredging, and protection planning

  • 04

    Enhanced Safety

    Identifies free spans, exposure, excessive burial, or potential geohazards early, supporting preventive maintenance and emergency response decisions.

Core Equipment

  • Kongsberg EM Series Shallow-Water Multibeam Echosounder

    High-Efficiency Wide-Area Mapping

    Realize large-scale and high-precision underwater terrain mapping of pipeline corridors, and quickly identify macroscopic terrain features such as undulations, sand waves, and gullies.

    Precise Pipeline Positioning

    By combining high-resolution terrain data, it is possible to preliminarily determine the approximate direction of the pipeline and whether there are significant signs of suspension.

    Multi-Platform Adaptability

    According to project requirements, models suitable for shipborne, USV, or ROV/AUV platforms can be selected for flexible deployment.

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  • EdgeTech 2000 Series Side-Scan Sonar & Sub-Bottom Profiler

    Integrated Detection of "Side scan+Shallow section"

    One drag operation, synchronously obtaining high-definition side scan images of pipelines (exposed, deformed, foreign objects) and shallow geological profile data (pipeline burial depth, geological structure).

    Superior Penetration & Resolution

    Select low-frequency (deep penetration) or high-frequency (high-resolution) sound sources according to different models (CSS/DSS/TVD) to meet different detection needs from nearshore to 3000 meters deep water.

    Long-Range Digital Coaxial Cable Transmission

    A single coaxial cable with a length of 6000 meters supports stable and high-quality data transmission in deep sea or complex sea conditions.

  • Professional Data Processing & Interpretation Platform

    Multi-Source Data Integration

    Utilize professional software such as QPS Qimera, CARIS, SonarWiz to fuse, interpret, and 3D model multi beam, side scan, and shallow section data.

    Automated Report Generation

    Provide pipeline inspection reports that comply with industry standards, including pipeline status diagrams, suspension statistics tables, burial depth profiles, and risk assessment recommendations.

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Service hotline:

022-5918-6252

Email: blueholesales@126.com

Address: Gate 6, Building 29, Yuhu Nanyuan, Huanhu East Road, Jinghai District, Tianjin

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