An independent upstream oil and gas exploration and production company, Afren Plc, has said it has discovered a significant light oil accumulation at the high impact Ogo-1 well located on the Oil Prospecting License (OPL) 310 licence offshore Nigeria. The discovery is based on the results of drilling and wireline logs.
The firm said this week, that the Ogo-1 well has been drilled to a total measured depth of 10,518 feet (ft) and has encountered a gross hydrocarbon section of 524 ft, with 216 ft of net stacked pay.
“The well was targeting 78 million barrels of oil equivalent (mmboe) of gross P50 prospective resources, but based on evidence to date; targeted resources are likely to be significantly in excess of previous estimates.
Further evaluation using wireline log analysis is currently underway prior to extending the well to a total measured depth of 11,800 ft to target further high potential zones,” the firm said.
Osman Shahenshah, Chief Executive, Afren, said the discovery of oil in the Ogo-1 well opens up a new oil basin in an under-explored region and represents a possible extension of the West African Transform Margin.
“Based on evidence to date, targeted resources are likely to be significantly in excess of previous estimates, with some high-potential zones still to be drilled.
“We look forward to working with our Partners to realise the full potential of Ogo and our additional prospects on the license,” Mr. Shahenshah said.
The firm said the Ogo-1 discovery, testing a four-way dip-closed structure in the Turonian, Cenomanian, and Albian sandstone reservoirs, confirms the extension of the same cretaceous sandstones that have yielded other significant discoveries along the West African Transform Margin. Read more