OSLO -- Appraisal well 223/5-1 of 7222/6-1 S (Obesum) oil/gas discovery is dry, according to StatoilHydro.
Wildcat well 7222/6-1 S made an oil/gas discovery of unknown size early in 2008, in rocks of Middle Triassic age. The objective of well 7223/5-1 was to delineate and determine the size of this oil/gas discovery.
The well proved two smaller gas columns in sandstones of Middle Triassic age. The reservoir quality is medium in the shallower discovery and poor in the deeper one, the company reports.
The appraisal well shows that the size of the shallower discovery is within an uncertainty span of 1-5 bcm of recoverable gas. It is too early to estimate the size of the deeper discovery, the company says.
No oil was found in the appraisal well, and the size of the oil component is considered minimal. Neither the oil nor the gas discovery in the shallower level is considered commercially interesting, the company says.
The well was not formation-tested, but data was collected and samples have been carried out. Evaluation and analyses will be conducted to determine the size and extent of the discovery.
The semisubmersiblePolar Pioneer drilled the well to a total depth of 2,525 m (8,284 ft) below sea level, and the well was concluded in rocks from Middle Triassic age.
The rig is scheduled to move to production license 104 in the North Sea to drill well 30/9-22.