Hyperdynamics said that the first portion of its 3D seismic survey in its offshore concession in the Republic of Guinea has been completed.

This portion of the offshore survey covers 2,760sq km of a total planned 2010 survey of 3,635sq km.

The survey was acquired by the Petroleum Geo-Services (PGS) seismic vessel Challenger, which completed the project recently after 57 days of work.

Initial views of the seismic data from the vessel (which are used for quality control) demonstrate increased energy penetration and resolution compared to earlier surveys.

The seismic data from the first portion of the survey is being processed by PGS in Houston.

The second and final acquisition phase of the 3D seismic survey – 875sq km in an area located about 75km west of the first survey area, will be acquired by the PGS seismic vessel Viking starting on or about 5 October 2010.

This second data acquisition phase is expected to last approximately one month.

Hyperdynamics operates the offshore Guinea concession with a 77% interest while Aberdeen-based Dana Petroleum has a 2% stake.