The offshore arm of the Abu Dhabi National Oil Company (Adnoc Offshore) has extended the commercial bid deadline for the estimated $30m Das Island facility integration scheme to 29 July.

The previous date set for bid submission was 18 July.

“The other bidders have asked for an extension to have more time to prepare their bids,” the source explained. They said the main scope of work is “basically replacing damaged or corroded lines” on Das Island.

“There’s very small scope of engineering, and small scope of equipment [replacement/maintenance],” the source said, adding that the value of the contract is estimated to be $30m.

The pre-qualification process for the main contract is understood to have taken place last year. The prospective bidders include:

• Target Engineering (UAE)
• Al-Asab (UAE)
• Chiyoda CCC Engineering (UAE)/Consolidated Contractors Company (Lebanon)
• MBTC (Kuwait)
• Adyard (UAE)
• Bilfinger Deutsche Babcock Middle East (UAE)
• Fortune Engineering (UAE).

The main contract consists of four smaller packages. “It’s almost a maintenance project so they have gone out to companies present on the [Das] island,” the source said.

Explaining the scope of the work, the source said: “There are a number of lines where you have to install temporary lines. The reason why they have come out to engineering companies is because the temporary lines are effectively full-flow lines. They need integrating into the system, so you are going to have to do all of the modelling. It’s more of a refurbishment.”

The source further said: “One of the packages is replacement of structural steel and foundation, so that needs some temporary steel support for the piperack when they remove the existing steel member, dig up the foundation to put in new foundation, replace the members and then move the structural steelwork.

So it’s a very small package. Some of the piping has to be removed without a shutdown, so that poses a technical challenge.”

As regards the frontrunner for the project, the source said: “Realistically you would be looking at firms [Adnoc Offshore] that are based on the island, because there is the mobilisation costs that just doesn’t work if you are not present there.”