WorleyParsons completed FEED for PDO Zauliyah
The greenfield project will process non-associated gas, water and condensates from the Hasirah and Hawqa fields in the Bahja-Rima area of PDO’s concession to boost output by over 1 million standard cubic meters per day (mmscmd) of natural gas.
The Hasirah oil reservoir has been in production since the mid 1980s, while the Hawqa field was brought into operation in 1997.
Both fields are characterised as oil and gas reservoirs located in the Gharif and Buah formations.
While smaller than PDO’s gas processing plants at Saih Rawl and Saih Nihayda,the projected Zauliyah facility will still make a significant contribution to the company’s natural gas output.
From Front end engineering and design (FEED), PDO could estimate project capital expenditure around $100-150 million.
The PDO Zauliyah gas processing facility is designed for 1.2 mmscmd capacity.
The project scope includes:
- Gas handling facilities
- Processing trains
- Sulfur recovery unit
- Installation of interconnecting flow lines and other off-plot facilities
Off-gas from the plant will be channelled to the associated gas facility of the nearby Zauliyah Oil Production Station where it will be mixed and used for the station’s gas lift compressors.
Produced water from the gas plant will be routed to the oil production station’s dehydration tanks.
As natural gas is continuously produced, wellhead pressure is projected to decline over the lifetime of the field predicted to come for depletion that by the year 2025.
Then only the Hawqa field will continue to produce natural gas.
WorleyParsons provided the FEED for the PDO Zauliyah gas processing facility project.
14 EPC bidders on PDO Zauliyah gas project
PDO received no less than 14 bids from local and international engineering contractors to build the Zauliyah Gas Plant project:
- Consolidated Contractors Company (CCC) from Greece
- Dodsal from UAE
- Engineering Procurement & Project Management (EPPM) from Tunisia
- Essar from India
- Galfar Engineering & Contracting from Oman
- Indian Oiltanking from India
- Jahanpars Engineering & Construction Company from Iran
- Larsen & Tubro from India
- Posco Engineering Company from South Korea
- Tata Projects from India
- Tecna from Argentina
- WorleyParsons from Australia
The successful bidder will be awarded an Engineering-Procurement-Construction (EPC) contract to build the PDO Zauliyah gas processing plant according to WorleyParsons’s FEED, to be completed and come on stream in 2015.
PDO in brief
Petroleum Development Oman is the NOC in the Sultanate dedicated to exploration and production.
PDO accounts for more than 70% of the country’s crude-oil production and nearly all of its natural gas supply.
The first economic find of oil was made in 1962, and the first consignment of oil was exported in 1967
PDO is owned by:
- The Government of Oman with 60% interest
- Shell 34%
- Total 4%
- Partex 2%