Occidental Petroleum of Qatar (Oxy Qatar) and state-owned Qatar Petroleum have signed a deal to develop the Idd El Shargi North Dome Field (ISND), offshore Qatar, as part of the Phase 5 field development plan (FDP).

The development activities, which are expected to attract an investment of more than $3bn, will include improving water-flooding practices in all oil producing reservoirs under the Phase 5.

Work under the Phase 5 FDP will also involve drilling of more than 200 additional production, water injection and water source wells, as well as installation of associated facilities to support the wells.

Oxy Qatar said the work at the field has already started and will continue to produce oil of about 100,000 barrels/day over the next six years.

Scope of the project also includes facilities platforms, wellhead jackets, fluid processing equipment and pipeline debottlenecking and water source projects, pilot studies to support produced water re-injection and enhanced oil recovery projects.

The companies will further optimise long-term production and recoverable reserves during the implementation of Phase 5.