Valeura Energy has completed an eight-well drilling campaign at Licence B5/27, located offshore in the Gulf of Thailand.
The company holds a 100% operated working interest in the block.
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The two development wells drilled from the Jasmine C platform, Well C-30ST1H and Well C-39, are now online as producers.
Well C-30ST1H was completed with an autonomous inflow control device, allowing it to produce oil despite being in a mixed gas/oil zone. Well C-39, a multi-zone producer, has also commenced production from the 330-sand interval.
The drilling campaign also included two deviated development wells from the Jasmine D platform, D-44 and D-45, both of which are now producing.
D-44 accessed remaining oil and indicated potential for further development, while D-45 was completed as a multi-zone producer and identified an additional target for future development.
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By GlobalDataFrom the Ban Yen A platform, three wells were drilled, two of which were development wells with appraisal targets, and one solely for appraisal.
The development wells, BYA-35ST1 and BYA-42, are now contributing to production, with BYA-35ST1 encountering total pay that is double the pre-drill estimates and BYA-42 appraising additional reservoir targets.
However, the appraisal well BYA-41 will not be completed as a producer due to poorly developed reservoirs at the location.
The Ratree exploration well did not yield significant hydrocarbon finds, suggesting that oil did not migrate to the targeted reservoir trend.
The drilling programme was completed safely, on time and under budget. Due to the campaign, the company stated that it has maintained oil production rates approximately in line with its first-quarter performance.
Valeura Energy’s contracted drilling rig is set to move to the Nong Yao field for a new drilling programme involving ten development wells.
Valeura Energy president and CEO Sean Guest said: “Block B5/27 is a prime example of how with ongoing drilling activity we can continue to commercialise new accumulations to maintain a stable and predictable stream of cash flow from each of our Gulf of Thailand assets.
“At the same time, we have appraised several additional reservoir intervals, which will form the basis of a future drilling campaign on the block. We expect to demonstrate further reserves adds at our next year-end reserves evaluation, giving rise to yet another extension in the economic life of the field.”
The company also recently announced the final investment decision on the Wassana field redevelopment, which includes the construction of a new central processing platform to optimise the block’s potential.
