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Indonesia: Mubadala Energy announces second consecutive significant gas discovery in South Andaman, Indonesia


13 May 2024

Photo - see caption

Back to Back discovery with potential for over 2 TCF of gas-in-place positions South Andaman as one of the world’s most important gas plays

Mubadala Energy, the international energy company headquartered in Abu Dhabi and the operator of the South Andaman Gross Split PSC, has announced a second another substantial gas discovery from the Tangkulo-1 exploration well, drilled in South Andaman, about 65 kms offshore North Sumatra, Indonesia. Harbour Energy holds a 20% interest  in the South Andaman licence.

The discovery marks the second deep water well operated by the company. Tangkulo-1 was drilled to a depth of 3,400 meters in 1,200 meters water depth, just a few months after the major discovery at the Layaran-1 well, also in South Andaman.

The Tangkulo-1 well encountered 80 meters of gas column in a good quality Oligocene sandstone reservoir confirmed through an extensive data gathering campaign that includes obtaining a full core of 72 meters, wireline logging, sidewall core, pressure and fluid sampling. Utilizing a new Drill Stem Test (DST) design, the well successfully flowed 47 mmscf/d of excellent gas quality and 1,300 barrels of condensate. Although testing was constrained by testing facilities, the estimated well capacity is 80-100mmscf/d and over 2,000 barrels of condensate. 

Mansoor Mohammed Al Hamed, CEO, Mubadala Energy, commented: 'When added to our recent success at Layaran-1, this game-changing discovery promises to transform Indonesia’s and Southeast Asia’s energy landscape and demonstrates that South Andaman is one of the world’s most exciting energy plays. By working with partners and harnessing our world class technical capabilities, I am confident we can realize the full potential of this block, in line with our commitment to support the government’s ambitious development timeframes. This news also strengthens our ability to play a proactive role in the energy transition through our gas biased strategy.'

With an 80% working interest in South Andaman, Mubadala Energy is the largest net acreage holder in the area. In line with company’s gas-biased strategy, Tangkulo-1 is an important pillar in the cluster’s development story, with the discovery unlocking further potential in the southern part of the block and indicating an additional multi-TCF of prospective gas resource in nearby structures. Harbour Energy holds a 20% interest  in the South Andaman licence.

Together with Layaran-1, this discovery adds material contingent volume and provides a platform for Mubadala Energy’s continued organic growth in the region through additional exploration and appraisal activities.

Original announcement link

Source: Mubadala Energy





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