Salamander Energy has informed that the G4/50-5 exploration well has discovered oil in the Surin prospect in the Gulf of Thailand.
Oil was discovered in good quality Miocene fluvial sandstones in the primary N40 target zone over the interval 1,525 to 1,533 metres TVDSS. Wire-line logs and pressure data confirmed the presence of approximately 8 metres of oil pay. Oil samples recovered from the zone indicate a 31 degree API oil and mapping of the Surin fault block indicates between 15 and 20 metres of column height above the location of the well penetration. Further evaluation is required to determine the potential resource volume encountered in the Surin discovery. The well, located in the central part of the Western sub-basin, Block G4/50, has been plugged and abandoned as an oil discovery.
James Menzies, Chief Executive of Salamander, commented:
“The discovery of oil in the Surin fault block, a 25 km step out from the Bualuang field, has proven the access to an oil charge in the Western Central sub-basin, which had been identified as a key risk pre-drill. Resource estimates for Surin are being assessed but this is clearly a positive step in de-risking the neighbouring prospects and in understanding the local petroleum system.”
The Atwood Mako jack-up rig will now return to the Bravo platform to continue the development drilling campaign on the Bualuang field.