02 Nov Westfield Concludes FEED phase of Escravos Tanks 4, 6, 7 & 12 Repair and Upgrade Project; Flags off Manpower Development
Following the successful completion of the Front-End Engineering Design (FEED) of Tanks 4, 6, 7 and 12 Repairs and Upgrade (TRU) project, contracted by Chevron Nigeria Limited, Westfield Energy Resources Limited has flagged off the mandatory manpower development phase of the project.
The FEED part of the project which ran from January to July 2017 involved the demolition of the existing fixed roof in tanks 4 and 6, likewise single deck floating roof in tanks 7 and 12 and replacing them with a double deck, double seal floating roof.
Main FEED deliverables for TRU projects are:
- Installation of bottom plates for all four tanks on the existing reinforced concrete.
- Reconstruction of floating roofs at tanks 7 and 12 with adequate foam dam size.
- Reconstruction of all four tanks bases at a higher elevation to compensate for settlement over time.
- Conversion of fixed roof to floating roof for tank 4 and 6.
- Realignment of suction-fill pipes (and inlet diffuser / spreader box arrangement) at tanks 4, 6, 7 and 12 to allow better springing when subjected to expansion or contraction
The complete FEED Package which amounts to about 93% of the entire project was delivered to Chevron Nigeria Limited on August 25, 2017.
Westfield Executed Scope
All necessary mechanical, piping and metallurgical, process, electrical, instrumentation/control, structural/civil, and loss prevention engineering design and drafting were carried out. These also include establishing equipment layout (plot plans), pressure and thermal relief requirements, stress analysis where applicable, and establishing corrosion allowances as well as cathodic protection requirements.
Westfield performed Tank design calculations with compliance to API 650 and develop Tank detailed, General Arrangement (GA) drawings based on P & ID’s as developed in Tank 3 / Tank 9 repair Project, so that Details Engineering Design (DED) Contractor can develop detailed / fabrication drawings.
Westfield developed complete Bill of Material for the modification of these Tanks and fully responsible to design Venting system to comply with API 2000 including establishing correct number of Pressure Vacuum safety Valve (PVSV)’s, Emergency Venting, Instrument Nozzles, Tank double bottom system & leak detection system, draw-off system (syphon), inlet diffuser / spreader box arrangement, Top / intermediate shell stiffening rings based on new section modulus calculations, walk-way with spiral ladder, hand rails Tank Foaming Nozzles design, Man-holes design, sample hatches design, tank bottom coating / CP system,
As part of the FEED scope to be carried out, laser scanning was done on the tanks to show the minimum expectation of exact 3D model creation of the tanks.
The Chevron Project Engineering Manager, Mr. Steve Gillam in the final project meeting expressed satisfaction with the level of work done by Westfield. He thanked the company and the entire project team for an excellent job done and timely delivery of the project as scheduled.
In line with the provision of the Nigerian Oil and Gas Industry Content Development Act (NOGICD) 2010 on human capital development and in compliance with the directive of Nigerian Content Development and Monitoring Board (NCDMB), a kick-off meeting of the human development phase of the project was held with NCDMB and Chevron on Monday, October 16, 2017.
A total of six trainees are currently undergoing trainings with approved manpower trainer, Hommaston Limited in: Tank and Tank Farm Design; Engineering Design Safety; General HSE, Entrepreneurship; Project Management; Logistics Support; Mechanical and Piping Engineering and many more as well as various software used in the Oil and Gas industry. The training will run for six months.
The trainees will receive certificates upon the successful completion of their trainings.