Jubilee Field to undergo 4D seismic study
Ghana’s flagship offshore Jubilee field will undergo a new 4D seismic study at the beginning of 2025 to enhance the drilling of new wells later in the year.
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The field is currently underperforming, producing 90,000 barrels per day, instead of the projected 100,000 barrels.
The J-69 well which came onstream in February 2024 at the Jubilee Southeast has underperformed impacting on overall field production.
Speaking on the performance of Jubilee and TEN fields in the first half of 2024, the Chairman/CEO of Kosmos Energy, a partner for the Jubilee/ TEN field project, Andy Inglis, said after 14 years of oil production at the prolific Jubilee field with an estimated recoverable resource of one billion barrels, with only a little more than half of its recoverable resource drilled so far.
He said Kosmos Energy and partners are keen to sustain commitments to effectively exploit its oil and gas.
He noted that the J-69 well was drilled using 4D seismic data compiled eight years ago adding that “as we go through the process of moving forward, technology has moved on massively with seismic both in terms of acquisition and processing. And we’ve just contracted to do a new 4D seismic, which will start at the beginning of 2025.”
“Then we’d use that data to identify the candidates for the next set of wells. So I’m confident that there will be a significant uplift in the data which will allow us to drill another high-quality set of development wells when we restart the program in 2025,” Mr Inglis said.
Field operator Tullow Ghana drilled 18 wells at the Jubilee and TEN fields in the past three years targeting new resource potential at the Jubilee southeast.
First Oil was achieved in June 2023, bringing underdeveloped reserves online, ramping up production to curb the progressive decline in output in recent years. Gross oil production at the field averaged around 72,000 barrels per day.
Production from the Jubilee southeast was to take gross oil production to a high 110,000 barrels of oil per day by the fourth quarter.
Initial resource potential of the field was estimated at about 1.5 billion barrels of oil, with a recoverable reserve of about 600 million barrels of oil.
But recent resource potential result estimates that the field holds over 2 billion barrels of oil and over 1 billion barrels equivalent to be recoverable.
A little over 50 percent of these recoverable barrels have been produced since production began in late 2010.
The effects of the upturn in reserves are numerous: the decline in production seen in the last three years will be curtailed; higher income for all the partners; and it also provides the opportunity to extend the plateau of the high margin production.
US independent Kosmos Energy discovered the Jubilee field off the coast of Ghana in 2007. British independent Tullow Oil is the operator of Jubilee with Kosmos oil, the Ghana National Petroleum Corporation and Petro SA as partners.