West Capella drillship

Harbour Energy working to establish full potential of ‘play-opening well’ in Indonesia

UK oil and gas company Harbour Energy has completed the drilling of the Timpan-1 exploration well, located 150 kilometres offshore Indonesia, after finding a material gas accumulation. The work is now being done to establish the full potential of this play.

West Capella drillship; Source: Aquadrill (Seadrill Partners)

The Timpan-1 exploration well on the Andaman II licence was spudded in May and it was drilled to a total vertical depth of 13,818 feet subsea in a water depth of 4,245 feet.

Harbour Energy
Source: Harbour Energy

Harbour Energy’s first well in the Andaman Sea encountered a 390-foot gas column in a high net-to-gross, fine-grained sandstone reservoir with associated permeability of 1-10 mD, the company revealed on Monday.

A full data acquisition programme has been completed including wireline logging, 240 feet of core recovered and a drill stem test.

The well flowed on test at 27 mmscfd of gas and 1,884 bopd of associated 58 degrees API condensate through a 56/64 inch choke. While the well has encountered a material gas accumulation, further work will be required to establish commerciality and the full potential of this play across the licence.

According to a social media update by drilling contractor Vantage Drilling, the Timpan-1 well was drilled using the West Capella drillship, which is managed by the drilling contractor Vantage and owned by Aquadrill, formerly known as Seadrill Partners. The two-well contract in Indonesia was announced in October 2021 and it also includes two priced optional wells. Under this deal, the rig was contracted for one well with Harbour and subcontracted to Repsol Andaman for the second well.

Gary Selbie, President Director, Indonesia, said, “We are encouraged by the result of this play-opening exploration well. We look forward to working with our partners and the Government of Indonesia to determine the potential for commercialisation of this important discovery.”