HOUSTON -- Coastal Energy has tied in its latest development well to the Bua Ban production facilities in the Gulf of Thailand.
The A-10 well was drilled to 7,474 ft (2,278 m) TVD, encountering 130 ft (39.6 m) of net pay in the Lower Oligocene reservoir with 17% average porosity.
It also drilled into the same fault block as the A-05 well, intersecting the same expanded section of Lower Oligocene evidenced in A-05. Currently A-10 is producing 1,150 b/d of oil.
Coastal has also drilled the Bua Ban A-04 and A-07 wells to respective TVDs of 7,908 and 8,122 ft (2,410 and 2,475 m). Both encountered pay zones in the Lower Oligocene and the Eocene reservoir. The company is currently isolating testing in the Eocene to assess the reservoir’s potential.
CEO Randy Bartley said: "The initial results from the latest batch of wells at Bua Ban are encouraging. We have further defined the extent of the expanded section of the Lower Oligocene seen in the A-05 and A-10 wells. The A-04 and A-07 wells had some oil shows in deeper zones which are currently being evaluated.
"The A-08 well is currently being drilled to define the northern limit of the Bua Ban field. Following that, the A-11 will be drilled into an upthrown block to test the Miocene and the A-09 will be drilled off structure to be used as a water injector well.
“Once we finish this phase of drilling at Bua Ban, we are planning to mobilize the rig to Songkhla A to drill development wells into the Lower Oligocene wedge and Eocene reservoirs. We expect to move to Bua Ban North and commence exploration drilling by year end."
Also at Songkhla A, Coastal plans to upgrade the liquids handling capacity of the facilities from 15,000 b/d to 30,000 b/d, which will increase total throughput and oil production. This will necessitate 10 days of downtime for upgrade work during the fall.