Valeura Energy Inc., Calgary, has completed an infill drilling campaign at Nong Yao A and started development drilling on the Nong Yao C extension, both part of the operated Nong Yao oil field (90%), offshore Gulf of Thailand.
Nong Yao A
The company drilled two horizontal wells at the Nong Yao A wellhead platform, and both have been brought online as producers.
The 37H well culminated in a horizontal section within the primary target H12.5 reservoir. That zone has been completed for production and is currently contributing about 500 b/d of oil, based on performance over the previous 10 days, the company said in a May 28 release. In addition, the well encountered 68 ft of net oil pay across eight separate appraisal target intervals. The zones will be further evaluated as targets for potential future development wells.
The 38H well has been completed as a horizontal producer in the H4.3 reservoir interval and is currently contributing 1,000 b/d of oil, based on performance over the previous 5 days. A thin oil-bearing sand was encountered in the shallower H2.0 sand interval and will also be studied to determine additional producible volumes.
Nong Yao C
Valeura’s contracted drilling rig moved to the Nong Yao C mobile offshore production unit where it has started batch drilling operations to develop the Nong Yao C field extension. The drilling campaign is expected to take 4 months and will be comprised of up to nine gross wells (six producer wells, up to 3 water injectors).
Valeura anticipates first oil from the Nong Yao C development in this year’s third quarter, and thereafter is targeting aggregate peak oil production rates from the expanded Nong Yao field of 11,000 b/d, a 50% increase over the 7,307 b/d reported for this year’s first quarter.