Up to five international engineering firms have submitted bids for a $200m-plus deal to build seawater injection facilities at the offshore Zakum field as part of a programme to boost the emirate’s oil and gas output.

Senior executives at bidding firms say that they handed in final commercial bids, outlining proposed cost structures, on 19 January and expect the client on the deal, Abu Dhabi Marine Operating Company (Adma-Opco), to make an award before the end of the first quarter.

The firms submitted their technical bids, outlining proposed engineering works, on 16 November 2009. Contractors entered into technical discussions with Adma-Opco in early December (MEED 10:12:2009).

The winning bidder will build an offshore platform and water injection facilities. The new facilities will gather seawater and pump it into the oil reservoir to maintain pressure and ultimately production at the ageing field.

The project is part of a series of schemes by Adma-Opco to boost production at its offshore oil and gas fields. The company hopes to increase output from current levels of about 600,000 barrels a day (b/d) to 1 million b/d by 2015.

Abu Dhabi’s other offshore oil and gas operator, Zakum Development Company (Zadco), wants to boost production levels from 500,000 b/d currently to 750,000 b/d in a similar timeframe.

Firms prequalified to bid on the deal include the US’ J Ray McDermott, India’s Larsen & Toubro, the UAE’s National Petroleum Construction Company, the UK’s Petrofac, and Paris-based Technip.