Drilling to resume on blocks once seismic results are in

OGX is set to resume drilling at two blocks in Brazil’s southern Campos basin in early 2012, as it awaits new seismic data to better image the sub-volcanic section of the reservoirs, writes Fabio Palmigiani.

OGX started exploring in Brazil in September 2009 and initially focused a huge part of its effort on blocks BM-C-43 and BM-C-42, home of the Vesuvio, Krakatoa, Kilawea, Huna and Hawaii discoveries.

The last probe drilled in either area was in the fourth quarter of 2010, when the company detected hydrocarbons at the Potosi wildcat.

“We do have several mapped prospects within our blocks. We haven’t drilled them yet because we are waiting for the PSDM survey that is being carried out at this moment,” said OGX exploration executive manager Paulo Ricardo.

The company believes a new pre-stack depth migration seismic survey will be completed around April, the time OGX ­expects it will start mobilising rigs to both blocks in order to spud additional wells.

“There are, however, at least one or two prospects that we are considering drilling even before we get the report,” he added. OGX has already mapped a prospect called Honolulu, in BM-C-43, which will target specifically the pre-salt layer and that could be drilled over the next few months.

Besides BM-C-42 and BM-C-43, OGX also holds non-operating stakes in blocks BM-C-37 and BM-C-38, operated by Maersk.

Two wells, Carambola-A and Carambola-B, were successfully drilled a year ago in BM-C-37 and resulted in oil finds.

“OGX and Maersk have already agreed where to drill next and accelerate the programme, but even there we have some volcanic rocks, so we will wait for the report before drilling,” Ricardo said.



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