Petroleum Africa
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Monday, May 29, 2017
Galp Energia is ready to restart its hunt for petroleum reserves off the coast of Namibia. The company says it will take the knowledge gained from a well drilled in 2013.
The company drilled the Wingat-1 well in H1 2013. The Wingat well was initially planned to be drilled to a total depth (TD) of 4,127 meters, but because of the potential to drill deeper to test the presence of turbidite reservoirs and the opportunity to penetrate and to sample the main source rock, was drilled deeper, to a final TD of 5,000 meters. The main objective of the well was to test the resource potential of the Albian age carbonate platform, which was penetrated on targeted depth, but its reservoir quality is much less developed than originally expected.
The information obtained, coupled with the results of preliminary studies of all data collected from the well, allowed the identification of two well-developed source rocks, which are rich in organic carbon and both are within the oil-generating window. Also, the well encountered several thin-bedded-sandy reservoirs that are saturated by oil. Four samples of this oil were collected and the analysis of these samples indicated the presence of light oil, 38º to 42º API, with minimal contamination. No water bearing zones were identified in the drilled section.
Those results were obtained through drilling carried out by Brazilian company HRT (High Resolution Technology). HRT farmed those assets out to Galp in 2012 – a Portuguese publicly traded energy company that has announced the commencement of new exploration activities.
Galp acquired two new offshore blocks in 2016, one in the Walvis Bay Basin and the other in the Orange Basin. The interests in the blocks are held through a consortium that includes Namcor and Katti’s Custos Investments, each owning 10% while Galp holds 80%. Galp has also assumed the role of the operator in the consortium.
Initial exploration activities will include geological and geophysics studies and the acquisition of new 3D seismic surveys, during the initial exploration period, the company said in the statement.
They will carry out the exploration activities over a period of three to four years.
“If these efforts are successful and the consortium moves on to the subsequent exploration stages, further activities may include the drilling of exploration wells,” the statement reads.
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