HOUSTON, Sept. 2010 (GLOBE NEWSWIRE) -- Global Geophysical Services, Inc. (NYSE:GGS) announces the signing of a major contract with Petra Energia S.A for an onshore seismic data acquisition project in the Sao Francisco Basin of Minas Gerais, Brazil.

This is Global's first program in the growing Brazilian seismic market and represents one of the largest land programs being undertaken in the country. Petra Energia S.A., a major holder of exploration blocks in Brazil, is commencing a 6000kms data program which includes an option for an additional 3000 kms.

Global will be introducing state-of-the-art Vibroseis technology in Brazil after an absence of more than ten years. Global Geophysical Country Manager George Yapuncich said, "Global is continuing its record of cost-effective data acquisition using the best practices available in the industry. After such a long absence, it is exciting to be bringing Vibroseis technology back to Brazil." Global intends to expand its Brazilian data acquisition services capabilities with data processing and reservoir analysis services and support.

Global Geophysical Services opened its Brazilian office earlier this year and in June, appointed George Yapuncich as Country Manager. Mr. Yapuncich has over 25 years of international exploration experience including extensive experience in Brazil with seismic land and marine operations. Prior to Global, he worked for Western Geophysical and Baker Hughes.