Fairfield extends Crawford field in UK N. Sea

Fairfield Energy Ltd., Staines, UK, found oil in a separate Tertiary horizon in Crawford field in the UK North Sea and confirmed the extension of the Triassic reservoir to the north of the previous Triassic wells.

Uchenna Izundu
International Editor

LONDON, Nov. 29 -- Fairfield Energy Ltd., Staines, UK, found oil in a separate Tertiary horizon in Crawford field in the UK North Sea and confirmed the extension of the Triassic reservoir to the north of the previous Triassic wells.

During the appraisal, the company drilled well 9/28a-18 at a 70° wellbore deviation and encountered over 1,200 ft of oil-bearing sandstone in the Triassic Cormorant, equivalent to a 400 ft vertical section.

"Log characteristics are consistent with previous Triassic wells on the Crawford field, proving the extension of the Cormorant formation into the northern part of the field," said Valiant Petroleum Ltd., Woking, UK, a partner.

Around 40 ft of pay in a 62-ft oil column was discovered on the Delta A prospect in a good quality sand section. "Wireline pressure test information confirms a medium oil density consistent with other Tertiary fields in the area. As a result of the extensive testing planned for the Triassic section, this interval will not be flow tested at this time," Valiant said.

The partners plan to redevelop Crawford, which was decommissioned in 1990 after being brought on stream by Hamilton Bros.

Contact Uchenna Izundu at uchennai@pennwell.com.

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