Uruguay offshore seismic survey starting

June 15, 2007
Nonproducing Uruguay's Ministry of Energy & Environment let a contract to Wavefield Inseis, Oslo, for a 7,000 line-km long offset 2D seismic survey on the country's continental shelf.

By OGJ editors
HOUSTON, June 15 -- Nonproducing Uruguay's Ministry of Energy & Environment let a contract to Wavefield Inseis, Oslo, for a 7,000 line-km long offset 2D seismic survey on the country's continental shelf.

Starting in mid-June, the M/V Bergen Surveyor will tow a streamer more than 8,000 m long and use an airgun source to image shallow and deep targets. It will also record gravity and magnetic data.

Uruguay's Administracion Nacionale de Combustibles, Alcohol y Portland has funded the survey and will share revenue from the sale of data expected to become available at the end of 2007.

The survey in the Punta del Este and Pelotas basins will provide ties to existing offshore wells and tie and calibrate the information to adjacent basins in the Atlantic off Brazil and Argentina.

Rocks in the basins are of Paleozoic to Mesozoic age and were deposited in the prerift, synrift, sag, and passive margin stages, and existing wells proved that the sediments lie in the hydrocarbon generation window, Wavefield Inseis said (OGJ, Feb. 7, 1994, p. 66).

Several leads of structural and stratigraphic character have been identified on older seismic data in both basins in a wide water depth range.