Conversion of Ashtart PF2 Platform Crane Pedestal into Diesel Storage Tank 

Owner SEREPT, Tunisia
Our Scope

• Calculation of the forces and moments on the tank/crane pedestal as per API Specification 2C.
• Finite Element Modeling (FEM) and Analysis of the tank shell/crane pedestal.
• Finite Element Analysis (FEA) of the crane pedestal.
• Deterministic fatigue life of the pedestal and supports.
• ASME VIII DIV 1 calculations of tank bottom and nozzles.
• ASME VIII DIV 1 calculations of tank shell, nozzles and manways.
• ASME VIII DIV 1 calculations of tank roof.
• Tank general arrangement and detailed drawings.
• Mechanical data sheet of the modified tank.
• Tank vent sizing calculations as per API 2000.
• Cathodic protection design calculations for the tank internal surface.
• Specification of internal coating of all tank internal surfaces.
• Inspection and Test Plan (ITP).
• Definition of the required Non-Destructive Tests (NDT) type and extent.
• Assisting SEREPT up to the entire certification by third party of the mechanical detailed engineering SoW deliverables.

Risk Assessment, Fitness for Service and Repair Study for Crude Oil Storage Tank 70T1

Client Maretap
Location Tunisia
Description Provided fitness for service assessment according to API 650, 653 and 579 for 54 m diameter atmospheric crude oil tank with 200,000 Barrels capacity.

• Expert advice and specification of non-destructive testing, settlement surveying requirements and ovality and verticality laser scanning requirements.
• Finite Element Analysis of the tank shell verticality and ovality to assess protection against plastic collapse and protection against buckling as per API 579 Level 3 Fitness for Service Assessment.
• Finite element analysis and assessment of the tank bottom-to-shell weld and juncture to check the Fitness for Service of the tank elevated bottom that was installed in 1999.
• Specification and evaluation of the various repair options and assessment of the risks and mitigations of each option.
• Preparation, signature and UK chartered engineer’s stamping/endorsement of the tank statement of fitness to return the tank to service after completion of the specified Fitness for Service, repair and testing scope.

Engineering for Hydrocarbon Storage Tank Farm

Owner TANKMED, Tunisia
Contractor SOCOMENIN (IET), Tunisia
Our Scope

• Design of 5 fixed cone roof Hydrocarbon Tanks with total capacity of 104,600 cubic meters including issuance of detailed design calculations and fabrication drawings in accordance with API 650.
• Piping stress analysis for tank farm piping including buried piping and issuance pipe supports detailed drawings.

EPC Tender package 2010-5 (Piping Works for LPG tanks T601, T602, T603 and Gasoil tanks T112, T501, T502)

Owner SONKER Oil Tanking Company (SOTCO)
Consultant CB&I
Contractor Integrated Engineering Group (IEG), Egypt
Our Scope
We acted as the Engineering arm for the Contractor, taking the responsibility for Preliminary engineering works, FEED verification, engineering clarifications meetings with the Owner and material cost estimate.

Engineering Verification and Techno Economic Study for Crude Oil Tanks retrofit to handle Fuel Oil

Owner SUMED
Location Ain Sokhna, Egypt
Our Scope

• Engineering verification and calculations for 4 existing floating roof crude oil tanks to check that they fit for the purpose of handling fuel oil instead of crude oil.
  
• Conceptual design including process simulation and sizing of fired heaters, centrifugal pumps and pipeline.
• Techno-economical study and cost estimate for the Engineering Procurement and Construction and Management (EPCM) works.
  

Detail Engineering and Design Calculations for 18 Pressure Vessels

Owner British Gas, Tunisia (Hasdrubal Gas Treatment Project)
Main Contractor Petrofac
Fabricator SOCOMENIN, Tunisia
Our Scope Detailed design calculations and fabrication drawings for 18 pressure vessels in accordance with ASME VIII DIV. 1

Assessment and Solution of Pipework vibration Problems

Client International Oil and Gas Operator
Location North Sea
Description

• Conducted velocity-vs-frequency measurements of vibrating features to assess the criticality of the vibrations as per the UK Energy Institute Guidelines for the Avoidance of Vibration Induced Fatigue Failures (AVIFF).
• Conducted strain gauge measurements to calculate the stresses and remaining fatigue life for the vibration features that exceeded the AVIFF concern and problem zone criteria.
• Conducted surface crack detection examination to check for any vibration induced cracks for the features that exceeded the AVIFF concern and problem zone criteria to ensure that they are safe to remain in service until the required pipework modifications are implemented.
• Specified the required pipework/pipe support modifications to mitigate the vibration problems.
• Conducted CAESAR II piping stress analysis to assess the impact of the pipework modifications on the stress and flexibility of the pipework.

Piping Repairs Using Engineered Composite Wraps Designed to ISO 24817 or ASME PCC-2

Client International Oil and Gas Operator
Location North Sea
Description We consider the following in the design and construction of Engineered Composite Wraps:

• Design life, design pressure and maximum and minimum design temperatures.
• Surface preparation of pipe.
• Installation temperature and curing requirements (elevated temperature curing).
• Design basis (substrate allowable stress, repair laminate allowable strains, and through wall defects).
• Defect size and depth.
• Pipe internal corrosion.
• Calculations of repair thickness, repair axial extent and repair taper length.
• Disbonding forces due to differential thermal expansion between the pipe material and repair laminate material.
• Cure and post cure testing (hardness tests and/or time-temperature measurements).
• Design factors for piping system components (bends, tees, flanges and reducers).
• Piping loads (axial, bending, shear and torsion).

Repair of Defective High Pressure pipe by Lokring  Connectors (Weld Equivalent)

Client International Oil and Gas Operator
Location North Sea

Piping Repairs Using Engineered Box Clamps  Designed to ASME VIII DIV 1 Code

Client International Oil and Gas Operator
Location North Sea

Fitness for Service Assessment for Local Metal Loss in a Column

Client International Oil and Gas Operator
Location North Sea

Risk-Based Inspection (RBI) for Corrosion Under Insulation (CUI)

Client International Oil and Gas Operator
Location Europe
Description There were concerns that insulated piping in 30 years-old assets may leak or burst due to CUI. We devised and supervised the RBI for CUI scope which was based on identification and inspection of the critical pipe runs throughout the assets.

​Disclaimer
We present here our key projects, some of which are executed under Technical Integrity Solutions Ltd. name and others were executed by us before establishing Technical Integrity Solutions Ltd.