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Tuesday, July 23, 2013
The latest news from drilling offshore Namibia is not all companies holding acreage there could hope for. Brazil’s HRT reported that the Murombe-1 (2212/06-01), the company’s second well in Namibia, was deemed a dry hole.
This well was targeting the Murombe Prospect on the PEL 23 in the WalvisBasin.
The main objective of the well was to test the resource potential of the Murombe (Barremian Age) basin floor fan turbidites that demonstrate a well-defined amplitude anomaly on 3D seismic PSDM. The drilling plan was to penetrate the top Murombe reservoir and reach total depth (TD) below the reservoir at 5,658 meters, run the wireline logs, conduct sidewall core sampling, acquire fluid samples and abandon the well. A secondary target, the Baobab (Santonian Age) confined channel complex, would also be penetrated.
The Murombe-1 well penetrated the Baobab objective and it contained 36 meters net sand within a 242-meter interval (15% N/G). The average porosity was 19% and the sands were water wet. The well-developed marine source seen in the Wingat-1 well located 15 km east of Murombe-1 was also present above the deeper Murombe turbidite prospect. Ongoing sample analysis will determine the quality of this source interval. The Murombe objective was penetrated and petrophysical evaluation of wireline logs indicates that interval consists of non-reservoir facies with low porosity. The well reached a TD of 5,729 meters. The wireline evaluation program included a quad combo tool and rotary sidewall cores.
The well used to drill the well, the Transocean Mariana, will now move south to drill the Moosehead Prospect on PEL 24. The Moosehead-1 well will target Barremian carbonates and drill to a total depth of 4,100 meters.
“This well proved that we are still on our learning curve in Namibian basins exploration. Our model was that the Baobab objective would be charged by the Aptian source rocks discovered at Wingat-1 and this did not occur. The Murombe-1 result further proved presence of Aptian source rocks, in the oil window, and poor reservoirs in the Murombe main target. We will now proceed to the OrangeBasin to drill our third exploration location – the Moosehead-1 Prospect – in PEL 24,” highlighted Milton Romeu Franke, the CEO of HRT.
HRT is the operator of 10 blocks offshore Namibia, contained in four Petroleum Licenses. GALP Energia, with a 14% participating interest, is HRT’s partner to drill the first three wells of the current exploration campaign.
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