Cirrus hits pay with L8-D field appraisal well

Cirrus Energy Nederland has hit gas pay with the L11-13 appraisal well.

Offshore staff

CALGARY, Canada -- Cirrus Energy Nederland has hit gas pay with the L11-13 appraisal well. The L11-13 well was directionally drilled from the L11b-A production platform into the L8-D field, which potentially straddles the L8a, L8b and L11b blocks.

The well, which was drilled to a total measured depth of 5,400 m (17,717 ft), was designed to test the southern extension of a large, well defined fault block, which contains the L8-D field. The top of the primary Upper Rotliegend group target was encountered at 3,845 m (9,334 ft) TVD subsea with indications of gas during drilling and coring, the company says. Two 27-m (-ft) cores were cut over two potential reservoir sections. Both potential reservoir sections have been open-hole logged and preliminary petrophysical evaluation indicates the presence of gas in a total of 15.5 m (51 ft) of net pay in the Upper Rotliegend Group reservoirs with average porosities of 14.5%, the company says.

Cirrus and its partners have agreed to flow test the Upper Rotliegend group reservoirs with results expected in 10 to 15 days.

The L8-D field was discovered by well L8-16x drilled in 2004. The L8-16x well was drill stem tested at rates up to 16.1 MMscf/day of gas from Permian-aged Upper Rotliegend group sandstone reservoirs at a vertical depth of 3,850 m (12,631 ft). The bottom hole reservoir penetration at L11-13 is 5.9 km (3.7 mi) from the L8-16x discovery well.


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