LONDON -- Salamander Energy has completed pilot hole BA-11P on the Bualuang field, identifying over 40 m (131 ft) of good quality oil pay at main reservoir, shallower, and deeper targets. The well will now be plugged back and converted to the first of two horizontal producers, the company says.
The well penetrated the primary objective, the Miocene T4 reservoir sandstones, at 1,098 m (3,602 ft) subsea and encountered a 32-m (105-ft) oil column. The preliminary net pay count in the interval is 25 m (82 ft), the company says.
Three additional sandstones were encountered above the T4 reservoir and were found to be oil-bearing; wireline logs indicate 7 m (23 ft) of net pay over this interval, the company reports.
At the deeper objectives below T4, thin sandstones in the Miocene T3 interval were found to be water-bearing while in the T2 Oligocene syn-rift section, 8 m (26 ft) of net oil pay was intersected, Salamander says. Crude oil samples have been taken from this interval by means of MDT and are currently being analyzed.
Good permeability and mobility was seen on wireline logs and MDT drawdown data in the T2 sandstones, the company says. Salamander will further evaluate the potential of the deeper and shallower sandstone reservoirs using the data gathered and by correlation with other wells on the Bualuang structure.
The BA-11P will be plugged back as originally programmed and steered into the top of the T4 reservoir as well BA-11H, the first horizontal producer on the Bualuang field. The rig will also drill and complete horizontal producer BA-12H and water disposal well BA-10i in this phase of the field development, the company says.
"We are pleased to find high quality net pay with the BA-11P well outside of the main Bualuang reservoir," James Menzies, chief executive of Salamander. "The discovery of additional resources close to infrastructure and the conversion of this well into a horizontal producer represents highly cost effective exploration. We anticipate production from the field to rise to over 11,000 b/d of oil."