Thailand-based Mubadala Petroleum and its partner Tap Oil are set to proceed further with the drilling of three development wells in the Manora oil field in the Gulf of Thailand.

The three development wells, namely MNA -25, MNA -26 and MNA-27, will be part of the Manora 2020 development drilling programme. The partners will start drilling the wells using the Valaris 115 jack-up rig.

The Manora oil field is located in the G1/48 concession of the Gulf of Thailand. It lies in 44m of water approximately 80km from the coast of Thailand.

Mubadala Petroleum is the operator of the field and has a 60% interest in the offshore property. Tap Oil holds a 30% interest in the field while Northern Gulf Petroleum holds the remaining 10% interest.

According to Tap Oil, the overall estimated cost of the Manora 2020 development drilling and workover campaign is $13.48m.

The MNA-25 development well will be drilled to up to 2,400m, with a primary goal of producing oil in the 600 series reservoirs of the Manora Central Fault block. Mubadala estimates an initial production rate of 1,100 barrels of oil per day (bopd) from this well.

The MNA-26 horizontal development well, located in the Manora Eastern Fault Block, will be drilled up to 2,225m. Its main goal will be to produce potentially undrained oil in the 370-10 reservoir.

Mubadala also estimates an initial production rate of 1,100bopd from the MNA-26 well.

Meanwhile, the MNA-27 development well is a new deviated well from a new platform slot that will effectively twin the MNA-22 well drilled in last year.

To be drilled up to a depth of 2,011m, the MNA-27 well is estimated to have an initial production rate of 1,400bopd.

Discovered in November 2009, the Manora oil field produced first oil in November 2014.