Exploration firm UK Oil & Gas (UKOG) has completed drilling operations of its Horse Hill-2z Portland horizontal well.
The well has been drilled to approximately 2,500ft within the Portland reservoir’s oil productive zone.
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Drilling has unveiled more than 70 times greater exposure to the oil productive zone compared with that of the HH-1 Portland vertical discovery well.
UKOG noted that all the technical objectives have been fulfilled during the horizontal drilling campaign.
Upon completion of a comprehensive electric logging programme, the HH-2z is now in the process to undergo an extensive extended well test (EWT) programme soon.
The EWT process will use a UK-designed high-capacity/high-rate downhole electric pump or electrical submersible pump (ESP).
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By GlobalDataAccording to UKOG, oil production from the HH-1 EWT has continued throughout the drilling campaign of HH-2/2z drilling. It will also continue simultaneously with the EWT phase of HH-2z.
Total aggregate test production capacity of HH-1 stands at more than 77,200 barrels.
UKOG CEO Stephen Sanderson said: “We are delighted to have safely and successfully delivered a significant 2,500ft of horizontal section within the Portland reservoir’s sweet-spot, the prime 35ft zone containing the reservoir’s most oil productive sandstones.
“The significant horizontal trajectory, combined with the continued positive indications of increased reservoir quality and lower pressure-depletion, effectively negated any technical or economic need to attain the maximum planned circa 3,000ft horizontal section.
“As a result, HH-2z remains optimally placed to be able to deliver its goal of significantly higher flow rates than the highly productive HH-1 vertical discovery.”
The company owns an 85.635% controlling interest in the Horse Hill field. It also owns a controlling stake in the surrounding PEDL137 and PEDL246 licences.
These licences are operated by UKOG subsidiary Horse Hill Developments.
