GPS

Oil & Gas industry

Advanced products, systems and services are used extensively in the Oil & Gas industry for a high degree of reliability, which supports improved safety, drives productivity, increases process availability and helps meet regulatory compliance standards. Our advanced technologies and techniques are utilized in Oil & Gas operations on the following critical assets to identify potential damage mechanisms :

• Tanks
• Vessels
• Heat Exchangers and Condensers
• Piping
• Rotating Equipment

Petrochemical

Petrochemical and Power plants experience various flaws in their heat exchanges. As a result, Petrochemical and Power need to detect I.D and O.D. pitting, cracking and SCC, induced corrosion, erosion, support wear and cracking at or in the tube sheets, wear/wall loss.

Services
• Corrosion mapping
• Detection of HIC and SOHIC
• Weld Inspection of pressure vessels, piping and tubing
• Vessels and piping fabricated with composite materials

Power Generation

inspection of Assets such as Boilers, Piping, Tanks and Pressure Vessels. Problems identified from these inspections can help prevent unscheduled shutdowns and help trend problems so they can be safely monitored and tracked.

Services

• Pressure vessel and piping welds

• Turbine blades and Christmas tree designs

• Erosion/corrosion mapping

Phased Array Ultrasonic Testing

Phased Array is the latest advanced Ultrasonic technology that operates by a computer controlled excitation of individual elements in a multi-element transducer. In short, Phased Array generates multiple ultrasonic signals, in nanoseconds, that produce controllable angles, focus depths and/or wide coverage from one inspection point.

It has many advantages including

excellent repeatability, increased inspection speeds, more accurate results and the ability inspection speeds, more accurate results and the ability to inspect complex geometries.

interactive analysis of A-scans, B-scans,S-scans, and C-scans for multigroup and multiprobe inspections.

The technology also produces multiple measurements that are synchronized and cursor/ gate associated, making the detection, location and characterization of defects much more reliable and exact than the results obtained with conventional shear wave inspection.

This technology has many applications

applications across a variety of industries including:

• Weld Inspection of pressure vessels, piping and tubing

• Vessels and piping fabricated with composite materials

• Pressure vessel and piping welds

• Erosion/corrosion mapping.

• Corrosion mapping

• Turbine blades and Christmas tree designs

Phased arrays offer significant advantages over traditional radiography of welds as well:

• No safety hazards

• Inspection as soon as weld is cool

• Better defect detection and sizing

• Able to penetrate thick sections

• Compliant with all known codes

Time of Flight Diffraction (TOFD)

Phased Array engineers/technicians.

Our highly qualified automated ultrasonic engineers/technicians operate the system in both manual and automated scanning modes. automated pipe and vessel weld inspection or erosion corrosion surveys.

phased Array generates an ultrasonic beam with the capability of setting beam parameters such as angle, focal distance, and focal point size through computer controlled excitation of the beam. it can be multiplexed covering large areas and the operator can vary the angle of the beam without moving the probe. Applications include weld inspection, complex geometries, defect detection and location, and sizing. the ability to record weld scans and to visualize the reflectors and their position within the weld makes it a qualified technology and an excellent choice for projects constructed to All ASME phased array code cases , ASTM E2700-09 ASTM E2491-06, AWS, API 1104 and API RP2X,CEN EN 583-6 , BSI BS7706 And more

Eddy Current

Eddy current inspection is leading the industry for in-service inspections on coated components. Eddy current has the ability to detect surface breaking defects such as in-service cracking under non metallic surface finishes.Services Division offers a complete range of inspection, training and QA/QC services. We integrate innovative technologies with conventional testing methods to ensure the integrity of industrial materials and components as cost effectively as possible. Eddy Current testing is based on measuring the impedance of a coil or inducing electrical currents (Eddy Currents) in a conductive material. Any changes in the coils impedance due to geometry, material changes, or discontinuities- such as pitting, erosion, corrosion, baffle fretting, cracking, and/or other anomalies will disrupt the flow of Eddy Current and produce a representative signal on the Eddy Current Testing instrument.

Eddy Current Applications:

Application Solutions provides highly qualified Eddy Current technicians . The equipment allows the technician to accurately and confidently inspect any tubing in Real-time, by allowing full length recording capabilities. This allows Data Analysis to be performed offline in order to assess damage with the customer.

Applications:

•    Heat Exchangers
•    Condensers
•    Feedwater Heaters
•    AC Chillers (Air Conditioners)

Applications Advantages:

• Sensitivity to gradual wall loss, corrosion, pitting, erosion,
   baffle fretting, cracking and etc.
• Inspection of nonferromagnetic tubing.
• High rate of inspection (80 to 100 tubes per/hr).
• Can distinguish between I.D. and O.D. defect orientation.

Eddy Current has several basic advantages over PT including:

•  More sensitive for detection of tight cracks
•  Can inspect through paint coatings
•  Much faster for small areas
•  Detects SCC in stainless steel pipes
•  Locates cracks in stainless steel vessels/tanks,
   turbine blades

Pulsed Eddy Current

FAILURES DUE TO CORROSION

Failure of steel support structures, piping systems or vessels can be caused by corrosion of the steel under passive fire protection or insulation and visual signs of degradation may not be evident.

Pulsed Eddy Current technology can help detect such hidden corrosion before it becomes a potentially expensive and hazardous problem.

Pulsed Eddy Current inspection approach based on this technology checking for corrosion under passive fire protection or insulation. A detailed visual inspection is carried out to look for signs of degradation and Pulsed Eddy Current technology is used to measure the wall thickness of the metal behind the fire proofing or insulation.

ACCELERATED CORROSION

Degradation of steel can start when water penetrates the interface between the metal and the fireproofing because of faulty seals or inadequate construction. The corrosion products that are created may exert pressure on the passive fire protection and cause it to crack. This can allow more water to reach the steel, which accelerates corrosion.

BENEFITS OF PEC TECHNOLOGY

• PEC technology can be applied in-service, so there is no 
  need to empty the storage spheres.
• No need to remove the passive fire protection. PEC 
  technology can measure through up to 250 mm of material 
  including the reinforcement mesh.
• Performed in service during plant operation
• Monitor to assess CUI or FAC damage
• Accessibility issues minimized by using rope access 
  operators

PEC TECHNOLOGY APPLICATIONS

• For in-service wall thickness monitoring – monitor
  the corrosion rates of critical equipment to facilitate 
  the safe extension of run times and the reduction 
  of shutdown frequency and duration
• To  annular  rings:  detect  corrosion  while atmospheric 
  storage tanks are in service by measuring the wall loss of 
  annular rings.
• In the splash  zone: improve  safety  cost effectively when 
  measuring caisson and riser wall thickness. 
  Readings can be made through marine growth and up 
  to 20 mm of coatings and corrosion products. 
  

Corrosion Under Insulation (CUI)

Without an effective CUI protection program, the damage can be difficult to detect, harder to mitigate, and comes with even greater cost. As the industry's truest one-source provider of asset protection solutions, We Have the resources, knowledge, and subject to implement and manage all phases of CUI program.

Visual & Qualitative Inspection

Our API-certified inspectors then conduct visual inspections to get a first look at the potential problem areas, after which they'll determine and perform the appropriate qualitative inspection technique.

Inspection Preparation

Our expert mechanical service technicians prepare areas for quantitative inspection,through combinations of insulation removal, corrosion mitigation, and surface preparation.

Quantitative Inspection

We can deploy a variety of quantitative inspections to determine corrosion severity,including ultrasonic thickness, phased array, and radiography. Localized vs General corrosion, radiation concerns, and access to the asset guide the decision process.

Tube Inspection

Many problems can arise from the failure of alloy tubing in heat exchangers and boilers. Eliminating problems with leaking feed water heater and condenser tubing can improve heat transfer performance and provide safe, reliable plant operation. Ferrous tubing is inspected using Remote Field Testing. The inspection of boiler tubes and other ferrous tubing can assist with the reliability and integrity of components and systems. Prevention of the release of oils and hazardous materials to the environment meets the strict government guidelines that are currently in place.

EDDY CURRENT & REMOTE FIELD INSPECTION

Eddy Current Testing (ET) is the fastest way to assess the condition of non-ferrous tubing in chillers, condensers, feed water heaters and evaporators. The inspection is performed swiftly and efficiently, with data collection speeds faster than any other inspection method. Analysis is performed on site to provide immediate results. On larger projects, analysis can be performed at a remote location,saving mobilization costs to the customer.

BASELINE INSPECTIONS

Performing baseline inspections on new heat exchangers can ensure the integrity of the new equipment prior to being installed.

IRIS Inspection

utilizes the Internal Rotating Inspection System (IRIS) to perform examinations. This inspection system is used at the request of the customer or when inspection results warrant the need for additional prove-up type information.

NEAR FIELD TESTING (NFT)

NFT is an emerging technology, specifically design to inspect air cooler (Fin Fans) tubes found in the Oil & Gas Industries. The NFT probes are designed to detected internal corrosion, inlet erosion, and I.D. pitting commonly found in air coolers. This application has proven itself in the industry as cost saving alternative. Determining the condition of the component and proper reporting of damaged areas is the ultimate goal of any inspection.

Tube Inspection Services for

•  Condensers
•  Boiler Tubes
•  Feed Water Heaters
•  Oil Coolers
•  Hydrogen Coolers
•  A/C Chillers
•  Air Coolers 
•  Type Of Heat Exchanger

Testing, Remote Field Testing, Near Field Testing and Internal Rotating Inspection System inspections. Using Tube Inspection Services our certified technicians within our Tubing Inspection Center of Excellence, we bring a wealth of knowledge and technical expertise to various industries. Choosing the proper tubing inspection technique depends on many factors. Tubing characteristics and expected damage impact the type of inspection you need to perform.

Let the professionals at GPS assist you in choosing the proper inspection program.

Most Common NDT Methods

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Storage Tanks Inspection

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Welding Inspection

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