The Nigerian National Petroleum Corporation on Friday announced the discovery of hydrocarbon deposits in the Kolmani River II Well on the Upper Benue Trough, Gongola Basin, in the North-Eastern part of the country.
A statement by the Corporation’s Acting Group General Manager, Group Public Affairs Division, Samson Makoji, stated that NNPC acquired 435.54km2 of 3D Seismic Data over Kolmani Prospect in the Upper Benue Trough, Gongola Basin.
This was to evaluate Shell Nigeria Exploration and Production Company Kolmani River 1 Well Discovery of 33 BCF and explore deeper levels.
The well was drilled with “IKENGA RIG 101” to a total depth of 13,701feet encountering oil and gas in several levels.
A Drill Stem Test is currently on-going to confirm the commercial viability and flow of the Kolmani River reservoirs.
The corporation explained that on Thursday, October 10, 2019, at 18:02hours, one of the reservoirs was perforated and hydrocarbon started flowing to the well head at 21:20hours in which the gas component was flared to prevent air charge around the Rig.
Preliminary reports indicate that the discovery consists of gas, condensate and light sweet oil of API gravity ranging from 38 to 41 found in stacked siliciclastic cretaceous reservoirs of Yolde, Bima Sandstone and Pre-Bima formations.
Computation of hydrocarbon volume is on-going and will be announced in due course.
The corporation said it had also acquired additional 1183km2 of 3D seismic data over highly prospective areas of Gongola Basin with a view to evaluating the full hydrocarbon potential of the Basin.
NNPC stated that it deployed technologies including Surface Geochemistry, Ground Gravity/Magnetic, Stress Field Detection, Full Tensor Gradiometry aerial surveys to de-risk exploration in the frontier basins.
Recall that drilling of the Kolmani River II Well was inaugurated by President Muhammadu Buhari on February 2, 2019.
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