Tullow Oil extends Tweneboa gas-condensate reservoir with appraisal drilling

Source: Tullow Oil

In West Africa, Tullow Oil (LSX:TUL) reported that the Tweneboa-4 appraisal well in the Deepwater Tano license offshore Ghana has successfully encountered gas condensate in good quality sandstone reservoirs. Results of drilling, wireline logs and samples of reservoir fluids have confirmed the western extent of the Tweneboa gas condensate accumulation.

The well, located 3.9 kilometers southwest of the Tweneboa-2 appraisal well was drilled in the western flank of the accumulation to complete the appraisal of the Tweneboa gas-condensate discovery. The well encountered 18 meters of net gas condensate pay in high quality stacked reservoir sandstones which are in static pressure communication with both the Tweneboa-1 and Tweneboa-2 wells.

The Deepwater Millennium dynamically positioned drillship drilled Tweneboa-4 to a total depth of 4,007 meters in water depths of 1,436 meters. On completion of operations, the well will be suspended for future use in field appraisal and development. The rig will then move to perform drill stem tests on the Tweneboa-2 oil and gas-condensate accumulations.

Tullow (49.95%) operates the Deepwater Tano license and is partnered by Kosmos Energy Ghana (18%), Anadarko Petroleum (18%), Sabre Oil & Gas (4.05%) and the Ghana National Petroleum Corporation (GNPC) (10% carried interest).



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