Tullow Oil has encountered oil in the Enyenra-2A appraisal well, in the Deepwater Tano licence offshore Ghana, confirming the Enyenra (formally Owo) discovery as a major light oilfield.
p style="margin-bottom: 0cm;">Tullow Oil has encountered oil in the Enyenra-2A appraisal well, in the Deepwater Tano licence offshore Ghana, confirming the Enyenra (formally Owo) discovery as a major light oilfield.
Enyenra-2A was drilled by the drillship Deepwater Millennium to a total depth of 4234m to appraise the Upper and Lower Channels of the Enyenra oilfield, seven kilometres south and down-dip of the Owo-1 well. Tullow said the well intersected 21m of net oil pay in the Upper Channel and 11 metres of net oil pay in the Lower Channel. It added pressure data from the Upper Channel showed the oil was in communication with the Owo-1 well.
"The discovery of oil this far down-dip in Enyenra-2A, and the confirmation of its communication with the Owo-1 oil discovery, is an exceptional result,” exploration director Angus McCoss said.
“This represents a major step forward in the appraisal of the Enyenra-Tweneboa area and is highly encouraging for our target to declare commerciality later this year.”
Tullow said the well also intersected five metres of gas-condensate bearing sandstones in the deeper Turonian fan but interpretation of the extent and thickness of the zone away from the well was ongoing. The well will now be suspended for later use and Tullow said the Deepwater Millennium would remain in the Deepwater Tano Block to complete the drilling of the Tweneboa-4 well. It added it also planned to drill another appraisal well, Enyenra-3A, up-dip to the north of the Owo-1 discovery.
Tullow is operator of the Deepwater Tano licence, holding a 49.95 per cent stake, and is partnered by Kosmos Energy (18 per cent), Anadarko Petroleum (18 per cent), Sabre Oil & Gas (4.05 per cent) and the Ghana National Petroleum Corporation (10 per cent carried interest).
