Tullow Oil has encountered gas-condensate in its Tweneboa-4 appraisal well in the Deepwater Tano license offshore Ghana. Data that was collected while drilling has confirmed that the gas-condensate accumulation extends to the western flank of the Tweneboa field.
Tweneboa-4 encountered 59 feet (18 meters) of net gas condensate pay in high-quality stacked reservoir sandstones which are in communication with both the Tweneboa-1 and Tweneboa-2 wells. The Deepwater Millennium drillship drilled the well to a total depth of 13,146 feet (4,007 meters) in a water depth of 4,711 feet (1,436 meters).
The well will be suspended for future use in the field’s appraisal and development, and then the rig will move to the Tweneboa-2 location to perform a drill stem test. Tullow operates the Deepwater Tano license, holding a 49.95% interest; Kosmos Energy Ghana holds 18%; Anadarko holds 18%; Sabre Oil & Gas holds 4.05%; and Ghana National Petroleum (GNPC) holds the remaining interest.
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