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Kuldiga area

Two licences were issued in the territory of the Kuldiga oil deposit.

	The licence of January 3, 2006 for hydrocarbon prospecting was issued for an area in the Gudenieki Parish, Kuldiga District. The licence area comprises 80.06 ha and incorporates a part of the Kuldiga oil deposit discovered in 1960s. The licensees: “Alīna” Ltd. and Odin Energi A/S. This licence is not valid any longer.
	The licence of June 30, 2006 for hydrocarbon Exploration and Prospecting was issued for an area in the Gudenieki Parish, Kuldiga District. The licence area comprises 116.01 ha and incorporates a part of the Kuldiga oil deposit discovered in 1960s. The licensee: “Alīna” Ltd. In January 2010, the licencee was changed. Baltic Oil Managment Ltd. is the present Licensee.

The location of the area is shown on the general map of the Kuldiga structure.

The Kuldiga oil discovery (in Cambrian sandstone) is located within the licence area, discovered in 1963, it is the very first oil discovery within the Cambrian succession of the Baltic Region. It is associated with the Kuldiga High, and is an asymmetrical north-northeast trending anticlinal structure. The size of this fold is about 45 km² with a vertical closure of 60 m, its eastern flank is steep and fault controlled. Based on the drilling data, the identified oil occurs within a 7 m (based on seismic data -15? m) thick sandstone layer of the Deimena Formation, which is 55 m thick there. The sandstone is poorly cemented, and the porosity exceeds 20%, permeability might exceed 1D. The oil-bearing bed is sealed by 8-11 m of Early Ordovician mudstone. The Kuldiga oil-water contact is horizontal at depth of 962 (961?) m. The area of the oil deposit within that contour does not exceed 1 km²; its size approximately 1.5 x 0.5 km. The driving mechanism in the structure is predominantly by water; reservoir temperature is 22ºC and initial pressure was 102 atmospheres.

In the well Kuldiga R-2 (Kuldiga-2) the oil flow reached 3.3 m3 per day on test.

Besides, oil was observed in the Ordovician deposits as well. Small oil flows were obtained from several wells from the U. Ordovician calcarenite and L. Ordovician sandstone.

AVAILABLE GEOPHYSICAL AND GEOLOGICAL DATA

Small-scale CDP seismic investigations were carried out in the area of the Kuldiga oil deposit; several wells were drilled.

Well and seismic data as well as maps are available to the oil industry for purchase and inspection:

	SEISMIC DATA
	WELL DATA
	Maps