Thai wells set length, drilling speed records

PTT Exploration & Production plc successfully completed the longest well drilled in Thailand at its Bongkot gas field, with a long hole drilled length of more than 5 km. Unocal Thailand bored the Funan J-13 gas well at a rate of 5,145 ft/day, believed to be a world record. This performance eclipsed the previous single-well Gulf of Thailand record of 4,720 ft/day set in 1997 on the Satun A-17 well, also by Unocal Thailand. Funan J-13 was drilled to 9,862 ft (7,900 ft true vertical depth) in 46 hr. BK-9-L is the longest reach well ever sunk in the kingdom, PTTEP said. It was drilled on a deviated maximum angle of 73° and taps gas and condensate reserves of 20 bcf loca...

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