Adnoc Gas floats tender for Habshan 7 project

11 August 2025

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Adnoc Gas has issued the main tender to contractors for engineering, procurement and construction (EPC) works on a major project to add a new gas processing train at its Habshan complex in Abu Dhabi.

Adnoc Gas, the natural gas processing business of Abu Dhabi National Oil Company (Adnoc Group), processes about 10 billion standard cubic feet a day (cf/d) of gas across several sites, including its Asab, Bab, Bu Hasa and Habshan facilities, as well as a natural gas liquids (NGL) fractionation plant at Ruwais. The company also owns and operates a 3,250-kilometre natural gas pipeline distribution network across the UAE.

The Habshan complex is one of the biggest gas processing facilities in the UAE, and in the Middle East and North Africa region. Its output capacity is 6.1 billion cf/d. The complex comprises five trains and 14 processing units that receive gas feedstock from onshore and offshore fields in Abu Dhabi.

With Adnoc Group pressing forward to achieve its goal of raising oil production potential to 5 million barrels a day by 2027 as part of its strategic P5 programme, high volumes of associated gas output are set to enter the grid.

The new train at the Habshan complex, which Adnoc Gas expects to commission in 2029, will play a key role in handling these additional gas volumes.

Adnoc Gas issued the main EPC tender for the new Habshan 7 gas train project to contractors between 5 and 8 August, according to sources. It has set a deadline of mid-September for contractors to submit technical bids on the project.

In April, MEED reported that Adnoc Gas had started an early engagement process with contractors for the EPC tendering phase of the Habshan 7 gas train project.

Prior to that, Adnoc Gas issued an expression of interest (EoI) document for the project in March, to which contractors submitted responses by 8 April, it was previously reported.

Separately, Adnoc Gas also completed the EoI exercise for early civil and site preparation works on the Habshan 7 project in June.

UK-headquartered Wood Group has performed the concept study and initial engineering design of the project.

Adnoc Gas intends to install the Habshan 7 train adjacent to the Habshan 5 train. This will enable the new train to utilise the ullage in the Habshan 5 sulphur recovery and tail gas treatment units and optimise operations.

The scope of work on the Habshan 7 gas train project covers EPC of the following units:

  • New high-pressure pipeline from the main Habshan complex to the new gas train
  • Separation and condensate stabiliser unit
  • Acid gas removal unit
  • Mercury removal unit
  • Deep NGL recovery unit
  • Sales gas and residue gas compressor
  • NGL product storage and transfer pump, as well as metering skid
  • Utility units (IA, N2, PW, FW, steam generation, DM)
  • Flare unit, to be located in Habshan 5 on common derrick
  • Flare gas recovery package
  • Water treatment package
  • Non-process buildings, to be located outside the Habshan 5 train
  • Power generation system
  • NGL pipeline from Habshan 5 to Ruwais, based on an existing pipeline assessment
  • Sales gas pipeline from Habshan 5 to sales gas network.

In a recent call with journalists to discuss Adnoc Gas’ financial results for the second quarter of 2025, Peter Van Driel, the company’s chief financial officer, said that the Habshan 7 project is the third phase of the Rich Gas Development capital expenditure programme by Adnoc Gas.

Adnoc Gas expects to achieve final investment decision next year on the new Habshan 7 gas train project, which is designed to increase the company’s production of high-value liquids such as liquefied petroleum gas, naphtha and condensates, Van Driel said.

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Indrajit Sen
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