KrisEnergy’s Rossukon-3ST sidetrack exploration well, located in G6/48 in the Gulf of Thailand, has encountered 148 feet TVD of oil and gas pay.
The well was spud on April 15, 2015, by the Key Gibraltar jack-up rig and is the last of four wells in the 2015 drilling campaign in the contract area.
Rossukon-3ST, drilled from the same surface location as the Rossukon-3 exploration well, reached a total depth of 6,645 feet (2,025 metres) measured depth, or -4,500 feet true vertical depth subsea.
According to the press release, KrisEnergy’s preliminary interpretation of well logs indicates that the well intersected approximately 85 feet true vertical depth (TVD) of net oil-bearing sandstones and 63 feet TVD of net gas-bearing sandstones over several reservoir intervals. Water depth at the Rossukon-3 location is 208 feet. The Rossukon-3 location is 1.9 km west of the Rossukon-2 surface location and 1.8 km northwest of the original Rossukon-1 discovery well, drilled in 2009.
Chris Gibson-Robinson, Director Exploration & Production, commented: “This final sidetrack
completes our exploration drilling program in G6/48 for this year. All four wells have encountered oil
and gas and have provided a great amount of information, which will be incorporated in our
geological model and reviewed in the coming months as we assess a development plan.”
G6/48 covers 566 sq. km over the Karawake Basin and lies to the north of the G10/48 licence, where
KrisEnergy is developing the Wassana oil field. KrisEnergy took over operatorship of G6/48 in May
2014. The company holds a 30% working interest in the concession and is partnered by Northern
Gulf Petroleum Pte Ltd with 40% and Mubadala Petroleum with 30%.
The Key Gibraltar jack-up rig is owned by Shelf Drilling (Southeast Asia) Limited. The rig will now
move to G10/48 in the Gulf of Thailand, where it will drill the Rayrai-1 exploration well followed by
15 development wells in the Wassana oil development.