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Techcorr is the leading provider of Asset Integrity Management & NDT Services.


United States

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Founded in 1999 and headquartered in Pasadena, Texas, TechCorr is a global leader in inspection services. Our services include:

TechCorr combines the most advanced technology with qualified, trained, and certified personnel to solve the most challenging industry problems. Our stats speak for themselves:

  • 20 years of experience
  • 20 locations worldwide
  • 400+ highly-skilled employees

TechCorr is well-equipped to handle nearly any reliability program requirement, no matter the complexity or location.

Products & Services
Persons in Charge (PIC)

TechCorr ‘s asset integrity and maintainance offers Persons in Charge (PIC) responsible for entire projects and/or act as the client representative’s eyes and ears overseeing construction contractor performance.

Our PIC is able to carry out the following:

  • Monitors and Coordinates Field Construction Activities
  • Receives Project-Specific Direction from Construction Lead
  • Schedules Field Work with Contractors
  • Coordinates Work Between Contractors
  • Reviews and Verifies Compliance with Job Specific DOT Operator Qualification (OQ) Requirements (OQ Certified in Abnormal Operations, Pipeline Maintenance, and Corrosion Maintenance)
  • Monitors and Maintains Compliance with Work-Hour Limits and Time-Off Requirements
  • Prepares and Secures Approval for BP & Other Facility Permits – Authorization to Work (ATW), Hot Work, Cold Work, Confined Space Entry, Excavation, etc.
  • Responsible for Site Safety Orientation and Control
  • Performs Routine Safety Inspections such as Trenching and Shoring, Welding, Confined Space, Working from Heights, etc.
  • Coordinates and Participates in Inspections performed by Third-Party Safety Inspection Specialist such as Critical Lifts, Scaffoldings, Excavations =/> 20 feet, High Voltage Electrical =/> 4800 volts and Diving.
  • Performs Safety Observation Conversations (SOC) and Participates in Extended Audits
  • First Responder for Safety and Environmental Incidents
  • Understands and follows BP Response and Notification Procedures
  • Maintains Construction Documentation – Safety, Environmental, Regulatory Compliance, QA/QC, Progress Reports, etc.
  • Reviews and Completes Pre- and Post-Construction Checklists
  • Prepares and Distributes Daily Construction Reports (Progress, Crew Size and Classification, Equipment List, Safety and Environmental Performance, Plans for the Following Day)
  • Verifies and Documents Adherence to Material Specifications – Purchase Orders, Material Test Reports (MTR’s), Material Transfers, etc.
  • Verifies and Documents Adherence to Construction Standards and Specifications (Welding, Material Handling, Coating, Ditch Safety, Critical Lifts, etc.)
  • Verifies and Documents Compliance with Outside Permit Conditions
  • Verifies and Documents Adherence to BP and Industry Standards and Codes
  • Verifies and Documents Contractor’s OQ Certification for Specific Tasks
  • Gathers Information and Completes Repair & Inspection (R&I) Reports
  • Completes Construction Section of APL 250
  • Finalizes Post-Construction Documentation and Transmits to Construction Lead for Review
  • Provides On-Site Communication with Regulatory Agencies & Municipalities
  • Works With Land Owners to Resolve On-Site Issues (Within Regulatory, Environmental, and ROW Stipulations)

API Visual Inspection

TechCorr provides visual testing (VT) services for multiple industries and assets.  Typically, these services are performed while the asset remains in-service, during maintenance outages or while under construction.  Our certified inspectors not only identify discrepancies for code and regulatory compliance but also offer quality control services during fabrication and/or construction of equipment and facilities.

TechCorr follows the certification requirements from the American Petroleum Institute (API) and offers the following technical personnel:

  • API 653 Above Ground Storage Tank Inspectors
  • API 510 Pressure Vessel Equipment Inspectors
  • API 570 Piping Equipment Inspectors
  • API 936 Refractory Material Inspectors
  • API 579 Fitness for Service Engineer Assessments
  • API 580/1 Risk Based Assessment Approaches

Additionally, TechCorr provides:

  • NACE I & II Coating Inspectors
  • NACE I & II CP Technicians
  • CWI – Certified Welding Inspectors

TechCorr utilizes the Visual AIM smart tablet inspection platform to perform efficient and effective visual inspection reports, in a tenth the time of manual reports.

Tank Inspection

Above Ground Storage Tanks are critical assets for nearly every process plant.  TechCorr is the world’s most technically advanced tank inspection company capable of performing on-line assessments and out-of-service inspections.

3D Laser Scanning

TechCorr uses 3D reality capture solutions combined with high-performance laser scanning technology to enable highly accurate survey grade mapping of environments.  Using the sub-millimeter profiling technique calculations can be completed in moments versus weeks when surveys are completed manually. 

Above Ground Storage Tank Surveys include: 

  • Roof & Floor Deviation Surveys
  • High Definition Alignment, Verticality & Plumbness
  • Peaking and Banding
  • Floor Analysis
  • Shell and Edge Settlement
  • Column Analysis
  • Girder & Rafter Analysis
  • Floating Roof Gap & Rim Space Analysis
  • Tank Strapping Analysis for Volume Certification
  • Tank Berm Surveys for Spill Containment Calculations

Acoustic Emissions Testing

Above Ground Storage Tank Acoustic Emission testing (AET) is a powerful screening technique that provides real-time, 100% volumetric monitoring of in-service storage tanks.  Using advanced low and high-frequency receivers, acoustic signals produced within the material under stress, are captured and modeled. Using proprietary auto-analysis and artificial intelligence software analysis of the signals is completed identifying the type, location, severity of structural defects present in the equipment.  Damage mechanisms identifiable including but not limited to:

  • Bottom Side and Top Side Corrosion
  • Weld cracking, embrittlement, Stresses

Acoustic Emission of Storage Tanks is quick and has a limited impact on the operations of a tank.  While the methodology does not meet the requirements of API 653; AE of storage tanks is a great tool to help prioritize maintenance.  And, when used in combination with our In-Service Robotic Tank floor inspection service; deferral of out-of-service tank inspection can be obtained.

Guided Wave Ultrasonic Testing

Guided wave ultrasonic testing (GWUT), also known as long-range ultrasonic testing (LRUT), is a screening tool for rapidly testing long lengths of pipe from a single inspection point. GWUT provides 100% coverage of the pipe wall without having to remove insulation or coating. It quickly identifies areas of corrosion or erosion that may then undergo more detailed inspections using other NDT techniques, such as radiography or 3D structured light.

Magnetic Flux Leakage

API 653 requires tank floors to be inspected while the tank is out-of-service.  TechCorr provides qualified-certified-experienced inspectors with technicians to perform magnetic flux extrusion on the tank floor.  Theoretically, magnets or electromagnetic energy is impregnated into the tank floor through the tank floor scanner.  Pick up coils installed on the scanner measure distortions within the magnetic field.  These distortions are the result of wall loss such as corrosion or erosion.  The technicians using the floor scanners are able to evaluate the magnetic field distortions screening for the presence of top and bottom side corrosion.  TechCorr’s procedure, once the tank floor is screened, requires indications to be proven and sized using other methodologies such as thickness gauging, corrosion mapping, metrology and similar.

  • Most reliable inspection method available
  • Repeatable results assuming similarly skilled technicians
  • 100% coverage of the tank’s floor including HAZ areas around welds
  • Able to scan the annular plate which is most susceptible to bottom side damage
  • Exceeds API 653 Inspection Requirements
  • Improves overall integrity management programs
  • Used to create tank repair scopes of work, which can be audited
  • Documentation of inspection performed is provided

Pulsed Eddy Current (PEC) Inspection

TechCorr offers Pulsed Eddy Current a unique corrosion survey method that allows ferromagnetic materials to be surveyed without the need to make contact with the surface (in contrast with Ultrasonics). This means that the measurements can be performed on objects covered with insulation, asbestos, fireproofing, concrete or coating.

For general ultrasonic technique, you need to remove the insulation at various places where you are expecting corrosion; skilled operator and specialized probes/ couplant will be required to get proper readings. PECT inspection is done online & without the removal of insulation. The high costs for removal of insulation can therefore be avoided.

ROV Submarine Video Inspection

TechCorr’s video inspection tools are ideal for a broad set of applications, including:

  • examining the material condition inside pipes, tubes, vessels, and tanks
  • assessing insulation integrity
  • evaluating equipment reliability
  • inspecting internal piping components, such as floats, baffles, valves, and internal coatings
  • confirming the results of other non-destructive testing methods
  • verifying drawings and schematics.

Shell Plate Corrosion Mapping

Corrosion mapping is an ultrasonic technique which maps and identifies variations in material thickness due to corrosion. Corrosion is the deterioration of metallic material by a chemical (or electrochemical) attack. This is normally caused by the environment (most often water), and sometimes by other materials. There are several types of corrosion:

  • Uniform corrosion that extends evenly across the surface
  • Pitting corrosion that is uneven and has smaller deep areas (pits)
  • Exfoliation corrosion that moves along layers of elongated grains
  • Inter-granular corrosion that grows along grain boundaries

To perform corrosion mapping an automatic or semi-automatic scanner is used to scan an inspection surface, using various ultrasonic techniques including pulse echo, eddy current and phased array. Corrosion mapping is widely used in the oil, gas and nuclear industries for the inspection of pipework, pressure vessels, storage tanks, and reactors. Results for corrosion mapping provide a high degree of repeatability and the advantage of position and size data for every flaw which can be compared for repeat scans of the same area to track flaw growth or corrosion rates both generally and for individual pits.

SRUT Annular Plate Inspection

TechCorr’s Short Range Wave Ultrasonic Testing (SRUT) is specifically designed to screen difficult-to-access locations of tanks, vessels, and piping, such as:

  • areas underneath supports, clamps, and composite repairs
  • the annular plate of above ground storage tanks.

Our testing equipment produces a high-resolution, real-time color image of internal/external corrosion up to four feet from the transducer.

Ultrasonic Tank Floor Robot

With a combination of highly skilled personnel and a robotic tank floor inspection system, TechCorr provides API 653-compliant inspections of above ground storage tanks without the risk, cost, or hassle of removing tanks from service.

Ultrasonic Tank Wall B-Scan Crawler

The ultrasonic test is based on the reflection phenomenon of acoustic waves when they meet obstacles to their spread. The wave is reflected back to its source if the obstacle is in a normal position in relation to the incident beam.

TechCorr’s Tank Wall Crawler is a rugged magnetic system- B-Scan Buggy which is the fastest method for inspecting remote access areas and a much safer alternative for tank wall and roof inspection. The B-scan Ultrasonic scanners provide a two-dimensional graphics presentation, in which the travel time of an ultrasonic pulse is plotted along the vertical axis and the linear position of the transducer is plotted along the horizontal axis. The resulting B-scan image provides detailed information on both the size and the depth of a detected material flaw.

Ultrasonic Weld Testing

Ultrasonic weld inspection is one of the most common methods of non-destructive testing (NDT) used to detect discontinuities within the internal structure of welds. The obvious advantage is its ability to help establish the weld’s internal integrity without destroying the welded component.

This method of testing makes use of mechanical vibrations similar to sound waves but of higher frequency. A beam of ultrasonic energy is directed into the object to be tested. When the pulse of ultrasonic waves strikes a discontinuity in the test piece, it is reflected back to its point of origin. Thus the energy returns to the transducer. The transducer now serves as a receiver for the reflected energy. The initial signal or main bang, the returned echoes from the discontinuities, and the echo of the rear surface of the test piece are all displayed by a trace on the screen of a cathode-ray oscilloscope.

Detection, location, and evaluation of weld discontinuities become possible because the velocity of sound through a given material is nearly constant, making distance measurement possible, and the relative amplitude of a reflected pulse is more or less proportional to the size of the reflector. One of the most useful characteristics of ultrasonic testing is its ability to determine the exact position of a discontinuity in a weld. This testing method can be used on ferrous and nonferrous materials, is often suited for testing thicker sections accessible from one side only, and can often detect finer lines or plainer defects which may not be as readily detected by radiographic testing.