Desire tags Rachel as next Falklands prospect

Desire Petroleum PLC said its Rachel, Ninky, and Anna prospects in the North Falkland basin are of the same sandstone fan play type as the Sea Lion oil discovery operated by Rockhopper Exploration Ltd.

By OGJ editors
HOUSTON, June 8 – Desire Petroleum PLC said its Rachel, Ninky, and Anna prospects in the North Falkland basin are of the same sandstone fan play type as the Sea Lion oil discovery operated by Rockhopper Exploration Ltd. (OGJ Online, June 7, 2010).

Desire plans to drill Rachel next, subject to approvals, when the rig returns to the company later in the year. The company noted that the Sea Lion well has greatly derisked oil exploration, particularly on the eastern flank of the basin where Desire has a strong acreage position.

The competent persons report produced for Desire by Senergy (UK) Ltd. in October 2009 shows gross mean unrisked prospective recoverable resources of 318 million bbl and 122 million bbl for Rachel and Ninky, respectively (see map, OGJ, May 17, 2010, p. 37).

Desire’s Liz well, drilled on the basin’s western flank, discovered gas in two zones, and analysis of the samples has confirmed the lower zone as dry gas with high methane and low liquids content and the upper zone as gas-condensate with a condensate/gas ratio of 95 bbl/MMscf and condensate of 49.5° gravity.

Work is focused on mapping the size of these accumulations and obtaining a better understanding of reservoir quality. Given the complexity of this work, which involves seismic reprocessing and modeling, it will take several months to complete.

The results of the oil indications in the Liz and Beth fans are also being followed up to determine if better quality sandstone reservoir may be present updip. Only when all this work is finished will it be possible to decide on how best to proceed with the evaluation of this area, Desire said.
Desire Petroleum PLC said its Rachel, Ninky, and Anna prospects in the North Falkland basin are of the same sandstone fan play type as the Sea Lion oil discovery operated by Rockhopper Exploration Ltd. (OGJ Online, June 7, 2010).

Desire plans to drill Rachel next, subject to approvals, when the rig returns to the company later in the year. The company noted that the Sea Lion well has greatly derisked oil exploration, particularly on the eastern flank of the basin where Desire has a strong acreage position.

The competent persons report produced for Desire by Senergy (UK) Ltd. in October 2009 shows gross mean unrisked prospective recoverable resources of 318 million bbl and 122 million bbl for Rachel and Ninky, respectively (see map, OGJ, May 17, 2010, p. 37).

Desire’s Liz well, drilled on the basin’s western flank, discovered gas in two zones, and analysis of the samples has confirmed the lower zone as dry gas with high methane and low liquids content and the upper zone as gas-condensate with a condensate/gas ratio of 95 bbl/MMscf and condensate of 49.5° gravity.

Work is focused on mapping the size of these accumulations and obtaining a better understanding of reservoir quality. Given the complexity of this work, which involves seismic reprocessing and modeling, it will take several months to complete.

The results of the oil indications in the Liz and Beth fans are also being followed up to determine if better quality sandstone reservoir may be present updip. Only when all this work is finished will it be possible to decide on how best to proceed with the evaluation of this area, Desire said.

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