Case Studies

TechCorr's reputation is based on our project successes; the delivery of safe, on-time, on-budget projects by quality personnel. TechCorr performs a post mortem inspection of all the projects we complete to help us improve on every project. Below is a partial list of case studies that you can select for further review and evaluation. Contact TechCorr directly for a complete list of case studies and/or access to more detailed information as required.

Title	Date
CCC Campeche OTIS® inTANK® Inspection (English) In-service tank Inspection using the OTIS® inTANK® system for tank bottom inspection of the 12810 m3 diesel tank (in service) of the Combined Cycle Power Plant of Campeche, in the state of Campeche, Mexico.	Jul 02, 2012

IRIS Inspection in India Tubular inspection was carried out at a Fertilizer plant in India. The IRIS technique was used for this application as MOC of the tubes was carbon steel and client was facing frequent tube failures because of expected localized corrosion from OD side	Apr 06, 2012

SRUT Online Tank Annular plate Ring Inspection TechCorr performed Short Range Ultrasonic Technique (SRUT) examination of the annular ring of Tank No. 1T-3302 at the Egyptian ELNG plant.	Mar 27, 2012

Eddy Current Testing on Exchanger During a scheduled T/A maintenance on an exchanger was scheduled for 10% inspection of tubing.	Mar 27, 2012

Eddy Current Testing on a Chiller A Houston based customer requested that we test a chiller using Eddy Current Testing.	Mar 27, 2012

Pulsed Eddy Current (PEC) - BG (Mumbai, India) TechCorr performed Pulsed Eddy Current (PEC) testing on 11 high temperature horizontal insulated vessels at the British Gas offshore terminal near Mumbai, India.	Mar 27, 2012

Short Range Ultrasonic Testing (SRUT) Corrosion Under Pipe Supports Short Range Ultrasonic Technique (SRUT) was designed mainly to test the Annular Plate of Above Ground Storage Tanks (AST’s) while the tank remains in-service, finding out Corrosion Under Pipe Supports, corrosion at soil air interfaces, and similar difficult to access locations. The technique is based on the concept of pulsing guided laminar waves into the base material from the chime area. The waves propagate up to three feet into the annular plate. When corrosion, pitting, erosion are present the ultrasonic waves mode convert and are received by the same transducer.	Sep 29, 2011

Inspection of Coke Drum Welds with Phased Array and TOFD In Service Phased Array (PA) and Time of Flight Diffraction (TOFD) technique inspection was carried out on Coke Drum Welds at one of the Refineries in India. TechCorr Was the first Indian Service provider to take up this work in IOCL. Bottom circumferential weld joints (Two nos. in each reactor) and skirt joint of the all 4 nos. reactors was inspected with TOFD and/or Phased Array Techniques. All the indications in welds were inspected by only TOFD and were confirmed by UT phased array examination.	Sep 21, 2011

Pulsed Eddy Current (PEC) Corrosion Under Insulation Survey Pulsed Eddy Current (PEC) inspection was performed on 12 vertical / horizontal vessels at one of the offshore platforms located in India near Mumbai.	Aug 25, 2011

Long Range Ultrasonic Technique (LRUT) Inspection on Heater Radiant Tubes Long Range Ultrasonic Technique(LRUT) Inspection of Atmospheric and Vacuum Radiant Heater Tubes was carried out at one of the Refineries in India as per given technical specifications of the tubes.	Aug 17, 2011

Repair of 36 Meter dia. Tank Roof Plate using Power Sleeve Repair System An in-service Crude Oil Tank in the refinery developed a leak on the Tank Roof Plate. Hot work repair was not permitted since the tank was in live condition and product was continuously flowing through the leak area. The client decided to go for composite repair system. The initial attempts were made to plug the leak using a local wrapping material but could not arrest the leak.	Jul 26, 2011

Bottom Line Surprise Emergying robotics may be one way of reducing costs, mitigating safety issues and eliminating the environmental impacts of tank inspection.	Jun 11, 2009

Advanced Aboveground Storage Tank Inspections – In-Service Robotics This paper describes the tank inspection requirements (such as New Source Performance Standards [NSPS], 40 CFR 60), conventional inspection techniques (out-of-service, manual, confined space entry, and visual), advanced inspection technologies (in-service robotics), benefits derived from using these advanced technologies, and the status of approval of these technologies by regulatory agencies. The authors also review the unique challenges and implementation circumstances associated with advanced inspection technologies. Finally, the authors present a pilot study currently in progress for the application of advanced inspection technologies to an Internal Floating Roof (IFR) tank subject to NSPS Subpart Kb (Standards of Performance for Volatile Organic Liquid Storage Vessels) requirements.	Jun 02, 2009

Ecuador Pipeline Integrity Assessment Project Client: Petro-Ecuador Location: Eastern Ecuador, Amazon Rain Forest TechCorr (Engineering Division) was contracted to review engineering, construction, inspection and maintenance procedures and practices on block # 17 (Vintage) located in the eastern Ecuador Amazon Rain Forest. The scope of work involved a detailed gathering system piping and facility review as the basis for developing a "Fixed Equipment" risk based inspection and maintenance program.	Feb 16, 2009

PDVSA Pipeline Integrity Assessment Project Client: PDVSA Gas Anaco (National Oil Company of Venezuela) TechCorr was contracted by PDVSA (Petroleos de Venezuela S.A.) to perform a baseline assessment on roughly 500 kilometers of production and transmission assets associated with PDVSA Anaco operating division. The pipeline diameters ranged from 2" up to 36" in diameter both buried and above ground. These pipeline transported natural gas between production fields utilized in the gas injection process as a secondary recovery technique when pressurizing oil reservoirs. Failure of these pipelines was estimated to affect over 200,000 barrels of oil production daily as reservoir pressure could not be maintained.	Feb 16, 2009

Pipeline Integrity Assessment Project Client: Toltest Engineering Location: Monathan Airforce Base - Tucson, Arizona TechCorr was contracted by Toltest Engineering to perform a detailed engineering assessment on the critical fuel piping system at Davis Monathan Airforce Base located in Tucson Arizona. The piping system is designed to fuel US Airforce Fighter Jets. The engineering assessment was designed in accordance with API 570 procedures incorporating visual inspection of all equipment components, ultrasonic thickness surveys on equipment components, hydrostatic testing of main fuel pipeline, guided wave ultrasonic testing on main fuel line and cathodic protection system audit to assure appropriate level three protection. A detailed engineering assessment was completed following the field data collection phase to develop a corrosion mitigation program.	Feb 16, 2009

Pipeline External Corrosion Direct Assessment (ECDA) Project Client: Chevron Global Solutions Location: Maracaibo, Venezuela TechCorr was contracted by Chevron Global Solutions to perform an ECDA (External Corrosion Direct Assessment) and ICDA (Internal Corrosion Direct Assessment) on a 26" diameter 28.6 kilometer buried pipeline system. This is the only pipeline system between the Chevron Boscan production field and Bajo Grande loading terminals. Failure along this pipeline would cut off nearly 123,000 barrels of oil per day to markets world wide.	Feb 16, 2009

Mechanical Integrity Inspection Project Client: Centragas Location: Barranquila, Colombia TechCorr (Inspection Division) was contracted to perform a mechanical integrity inspection using advanced guided wave ultrasonic inspection technology developed by the Pipeline Research Council International on buried compressor station piping systems. The project encompassed compressor stations throughout the Centragas pipeline network in Barranquila Colombia.	Feb 13, 2009