Mustika-1 was drilled to a total measured depth of 2,768 ft (844 m), or 2,667 ft (813 m) total vertical depth subsea, and encountered gas in the Tuban and Kujung I formations. Initial indications from wireline logs are that the gases have a high carbon dioxide content and therefore are likely to be below the economic threshold for a commercial discovery.
The well will be P&A’d and a detailed analysis of the well data and gas samples will be undertaken to review the remaining prospects and leads in the Sakti PSC.
Chris Gibson-Robinson, Director Exploration & Production, said: “This is our final exploration well for 2015 with the first five being drilled in the Gulf of Thailand, all of which were successful. The first four wells resulted in the recently approved plan of development for the Rossukon field.”
KrisEnergy was awarded the Sakti PSC in February 2014. The block covers 4,974 sq km (1,920 sq mi) in the East Java Sea over the western margin of the East Java Basin, Bawean Arch, and the Muriah Trough.
The company is also the operator of the Bulu PSC, which is adjacent to the Sakti PSC and contains the Lengo gas discovery. It received approval for its plan of development in December 2014.
Front-end engineering and design for the Lengo development was completed in 3Q 2015. Gas sales negotiations are ongoing and preparations are under way to tender the contract for engineering, procurement, construction, and installation.
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