Laser Scanning Services

High-accuracy 3D scanning for damage documentation, structural assessment, and digital asset modeling

Traditional measurement methods, including manual gauging, pit gauges, tape measures, and static drawings, capture point data at a moment in time. For targeted measurements, they are adequate. However, complex damage assessments, structural evaluations, and integrity programs demand more comprehensive spatial coverage. Gaps in coverage, operator-dependent accuracy, and the inability to compare successive measurements with precision all limit what conventional methods can tell operators about the true condition of their assets.

MISTRAS 3D laser scanning services replace point measurements with millions of high-accuracy data points, generating detailed three-dimensional models of assets and damage features. Those models can be analyzed remotely, compared over time, and integrated into inspection planning and engineering workflows. From pipeline dig documentation to storage tank structural assessment to facility-wide digital twin development, MISTRAS’ laser scanning technology delivers the spatial intelligence that modern integrity programs require.

Corrosion and damage documentation — Pipeline and field applications

At pipeline excavations and CUI inspection sites, accurate documentation of corrosion morphology, mechanical damage, dents, and bulges is critical for Fitness-for-Service evaluation and repair planning. Manual pit gauge measurements are slow, operator-dependent, and limited to point data. Those gaps in the damage profile can lead directly to inaccurate repair decisions.

MISTRAS deploys portable, metrology-grade handheld 3D laser scanners to capture complete, high-resolution surface geometry of exposed pipeline damage in the field. The scanner creates a full 3D mesh of the affected area in minutes, documenting corrosion depth and extent, dent profiles, bulge geometry, and mechanical damage features with high accuracy. Analytical software automatically generates detailed assessments of corrosion severity, remaining wall thickness, and burst pressure calculations. The result is engineering-grade documentation that supports B31G, modified B31G, and other Fitness-for-Service methodologies. Results are repeatable and traceable, with data archived for direct comparison at subsequent inspections.

The same handheld scanning capability is used for CUI mapping, providing rapid, comprehensive documentation of corrosion extent and morphology on exposed piping and vessels following insulation removal.

Storage tank structural assessment

Aboveground storage tanks deform over time through settlement, internal pressure cycling, thermal expansion, and foundation movement. Characterizing out-of-roundness, shell deformation, roof rafter condition, column plumbness, and bottom settlement accurately requires measurement across the full tank structure. Manual methods cannot deliver that coverage, and static isometric drawings cannot reflect it

MISTRAS provides tripod-based and internal 3D laser scanning for storage tank structural assessment, generating millions of data points across the full tank shell, roof, and bottom in a single campaign. For internal assessment, scanners can be deployed down the center of the tank to capture internal geometry without requiring manned entry.
Applications of 3D laser scanning for storage tank assessment include:

Tank plumbness and out-of-roundness evaluation
Shell deformation analysis and change detection
Bottom settlement monitoring and measurement
Roof rafter condition assessment
Column plumbness verification
Tank calibration and volume verification
Finite element analysis (FEA) modeling
As-built drawing generation for modified or undocumented tanks

3D laser scanning delivers significant advantages over traditional tank assessment methods. Data resolution is substantially higher than conventional collection methods. Scan data can be reviewed and analyzed remotely after the campaign without revisiting the site. Faster data collection and comparison reduce downtime and inspection costs. Furthermore, successive scans compared against baseline data enable long-term condition monitoring that tracks structural changes over time with a precision that manual re-measurement cannot match.

3D Digital Twin and inspection planning integration

Laser scanning and reality capture data collected across a facility can be integrated into MISTRAS' PCMS 3D Digital Twin platform, creating a searchable, spatially accurate model of the facility that connects directly to the inspection management system. The Digital Twin is designed to address the practical inefficiencies that slow MI programs down. That includes heavy reliance on static isometrics, manual cross-referencing between drawings and the IDMS, limited visibility into access conditions and insulation status, and the high administrative burden that accumulates before inspection work even begins.

Within the Digital Twin, inspection planners can walk circuits remotely, locate CMLs in spatial context, assess scaffold, insulation, and rope access requirements before dispatch, and schedule inspection activities, cutting planning effort and the drawings needed to execute a circuit. In the field, the same 3D environment confirms the correct inspection location, minimizing screen time and supporting established procedures. Results captured in the field flow back to PCMS as the system of record, keeping the Digital Twin current and preserving the spatial context of each inspection event for future planning cycles.

Key objectives the Digital Twin addresses:

Enhanced inspection planning through 3D visualization
Optimized resource planning across scaffold, insulation, and rope access
Reduced inspection isometric management costs
Improved equipment repair and replacement planning
Platform foundation for AI/ML-driven inspection planning as the technology matures

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