TGS Announces Clari-Fi, a New Technique to Provide Broadband Seismic Data From Conventional Acquisition

HOUSTON, TX--(Marketwire - Jun 4, 2012) - TGS announces the release of Clari-Fi, a proprietary seismic data processing technique.

TGS' Clari-Fi technique allows broadband seismic to be generated from conventionally acquired seismic data. In order to achieve this, acquisition related frequency attenuation effects and the attenuation caused by the earth's filter must be addressed. TGS' proprietary Clari-Fi imaging technique enhances low and high frequencies and effectively solves for the earth's attenuation, resulting in images that are broadband and focused, thus improving the resolution of the data. This technique works with conventional streamer acquisition and so enables reprocessing of legacy data.

"The industry is increasingly recognizing the benefits of broadband data," says Zhiming Li, Senior VP Data Processing and Research & Development. "Broadband seismic provides greater richness of both robust low frequencies -- ideal for deep structure imaging and high frequencies -- which aid temporal resolution."

Company summary

TGS-NOPEC Geophysical Company (TGS) provides multi-client geoscience data and services to oil and gas Exploration and Production companies around the globe. TGS' geophysical and geological data products include multi-client seismic libraries, permanent reservoir monitoring, magnetic and gravity data, the industry's largest global database of digital well logs and regional interpretive products. TGS also provides high-end depth imaging services to help resolve complex seismic imaging problems. For more information visit TGS online at www.tgs.com.

Forward-looking statements and contact information

All statements in this press release other than statements of historical fact are forward-looking statements, which are subject to a number of risks, uncertainties and assumptions that are difficult to predict, and are based upon assumptions as to future events that may not prove accurate. These factors include TGS' reliance on a cyclical industry and principal customers, TGS' ability to continue to expand markets for licensing of data, and TGS' ability to acquire and process data products at costs commensurate with profitability. Actual results may differ materially from those expected or projected in the forward-looking statements. TGS undertakes no responsibility or obligation to update or alter forward-looking statements for any reason.

TGS-NOPEC Geophysical Company ASA is listed on the Oslo Stock Exchange (OSLO: TGS).