Valerua Energy’s successful exploration drilling campaign yields three oil discoveries in Gulf of Thailand
(WO) – Valeura Energy Inc., ab upstream oil and gas company with assets in the Gulf of Thailand and the Thrace Basin of Turkey, has made three oil discoveries on its assets in the offshore Gulf of Thailand.
Nong Yao D discovery. The Nong Yao-13 well (G11/48 concession, 90% working interest) was drilled to 5,399 ft measured depth ("MD") (3,342 feet true vertical depth ("TVD")) and discovered just over 30 ft of new oil pay across several intervals.
This confirms that oil has successfully migrated into this area of the block, a factor that was seen to be a risk in the Nong Yao D area. The particular intervals comprising the discovery are relatively shallow new zones, which have not been produced elsewhere on the concession.
These reservoirs are believed to be recurring across the Nong Yao D. However, further analysis on the seismic data is warranted. This work will seek out potential locations for follow-up exploration and appraisal drilling in the vicinity, with the ultimate objective of amassing sufficient volumes to justify a future development.
Niramai and Wassana North discoveries. Two wells were drilled north of the Wassana oil field (G10/48 concession, 100% interest) to identify sufficient oil volumes in this northern area of the block to justify a future development project.
The Niramai-4 well was an exploration/appraisal well approximately one km north-east of the successful Niramai-1 oil discovery, which was originally drilled in 2009. The Niramai-4 well was drilled to 7,312 ft MD (5,581 ft TVD) and discovered over 90 ft of new oil pay across two key reservoirs.
Following evaluation, the well was then sidetracked with a high-angle well known as Niramai-4 ST1 to test the Wassana North prospect, a separate fault block immediately north of the Wassana field.
The well was drilled to 12,388 ft MD (5,782 ft TVD) and discovered approximately 40 ft of new oil pay. The deepest oil-bearing zone is of particular interest because the wellbore intersected the reservoir significantly downdip of the crest. Oil is interpreted to be present to the base of the reservoir, with no oil-water contact identified in the well. This indicates further potential, both deeper than penetrated, and more laterally expansive in the updip portion of the structure.
While reservoir properties and volumetric estimates are still being calculated for both wells, when combined with the pre-existing Niramai volumes, the total recoverable volumes are believed to exceed management's requirements to support an additional future development on the G10/48 block.
Such a development expansion is beyond the scope of the Wassana field re-development project currently being evaluated but has the potential to extend production and the life of the concession beyond its current economic limit in 2032.
Drilling plan. Valeura’s contracted drilling rig has been mobilized to the Nong Yao field, where it will soon begin drilling two infill development wells on the Nong Yao A platform, intended to add to production rates in the near term. Once commissioning work is complete on the Nong Yao C Mobile Offshore Production Unit, the rig will begin development drilling on the Nong Yao C accumulation. Valerua is targeting first oil from Nong Yao C in early Q3 2024.
Sean Guest, President and CEO, said, “As we continue to pursue adding value through growth, near-field exploration forms an important part of sizing up the organic potential of our assets. With successful results like these, the opportunity set before us is continuing to expand. “
“Following this exploration drilling campaign, we are returning to both infill drilling and development work, which is intended to increase production rates over the coming months to support cash flow generation, particularly as we see benchmark oil prices rise to new highs for this year. We are also planning for further exploration drilling elsewhere in our portfolio later in the year."
