GENERAL PROJECT BACKGROUND
This project is concerned with the installation of a new production platform at Oron. The development of the Oron field at the time of execution of this project was envisaged in three phases:
- Phase 1 – Installation of a wellhead platform with free flow of
liquids via Akam to the An tan Terminal.
- Phase 2 – Installation of a production platform adjacent to the
wellhead platform with full liquids handling capability. Facility
will enable degas and export of fluids with necessary support and
utilities.
- Phase 3 – Following installation of gas compression facilities at
Adanga a new pipeline will transfer wet gas from Oron to the
Adanga CPU.
This project constitutes the Detailed Design for Phase 2 of the development of Oron – installation of Oron PP and upgrade of existing Oron Wellhead Platform.
Topside facilities for Oron Production Platform include:
• Production Facilities – production separator, pipeline pumps, pig
launcher/ receivers;
• Utilities including standby generation, main generation,
electrical equipment room, Fla re drum, Firewater pump,
uninterrupted power supplies, diesel and fresh water storage,
etc.;
• platform crane
• flare bridge, caisson, flare tower;
• temporary shelter;
• safety equipment;
• Helideck
• Structural Design of production platform
DELIVERABLES COMPLETED
The following deliverables were completed:
• PFD’s
• Equipment List
• Line List
• P&ID’s
• Data Sheets
Note : Adanga ADPP2 equipment vendor data available was included
within process deliverables.
Deliverables not re-issued following design basis changes
The following deliverables were not re-issued at APDNL.’.s instruction following design basis changes announced in July 2005:
• Re-issue of HAZOP Close Out Report
Outstanding Issues
The following are issued for future consideration:
• Inclusion of Re-HAZOP actions into process design. Following
inlcusion of design basis changes the P&ID’s have not been
through a Re-HAZOP.
Deliverables Completed
The following deliverables were completed:
• Field Layout
• Plot Plans
• General Arrangement Drawings
• Piping Specials List
• Piping Specials Data Sheets
• Pipe Support Details
• Pipe Support Location Plans
Deliverables not re-issued following design basis changes
The following deliverables were not re-issued at APDNLs instruction
following design basis changes announced in July 2005:
• Piping ISO’s.
• Pipe Stress Analysis Report
Outstanding Issues
The following are issued for future consideration:
• Re-Stress of piping and re-issue of Pipe Stress Analysis Report.
• Completion of piping ISO’s consistent with remaining piping
design package issued