Dukhan details

19 July 1996

The estimated $300 million project is centred on recycling gas located in the Arab D gas cap in the Dukhan field. It entails processing 800 million cubic feet a day of wet gas to recover 41,000 barrels a day of condensate and 750 tonnes a day of natural gas liquids (NGL), which will be sent by pipelines to Urn Said. The remaining dry gas will be reinjected into the reservoir to maintain pressure.

The project involves the establishment of a gathering system serving 21 production wells and a gas injection network for 14 wells. The gas will be gathered at a new gas recycling plant where the condensate and NGL will be stabilised into product streams. The products will then be transported by pipeline to the existing Fahahil stripping plant, which will be expanded to accommodate the increased supplies. Here, further treatment will take place before being piped to Umm Said.

Fifteen kiornetres of new NGL pipeline will be built, plus a condensate line of 104 kilometres. At Urarn Said, two new 55,000 cubic metre storage tanks will be erected.

Dukhan Arab D gas recycling project:

the benefits of the alliance approach

Traditional approach Alliance approach

First condensate after 40 months First condensate after 26 months

Minimum of 10 contractors required Only four contractors required

Client project team of 25-30 people Client project team of seven people Several management teams

One common management team

Variations and claims Drive down cost and increase profit

Lowest price, technical acceptability, Best value

short schedule Long-term relationship

Technical problems after start-up

Gas production:600 million cfd 800 million cfd

Condensate recovery:92 % 95 %

Condensate production:27,000 b/d 41,000 b/d

First condensate:1:1:98 15:11:97 or earlier

Process trains:Two One

Project phases:Two One

Source:Paper presented by Jamal Ben Amor, Dukhan Alliance project manager, at Partnering & Strategic Alliances, 26-28 March, Dubai

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