Exhibit 23.10

Consent of Independent Registered Public Accounting Firm

We consent to the reference to our firm under the caption “Experts” in the Registration Statement (on Form F-4) and related Prospectus of Compagnie Générale de Géophysique for the exchange offering of its outstanding 7¹/2% Senior Notes due 2015 and to the incorporation by reference therein of our report dated May 9^th, 2003, with respect to the consolidated financial statements of Compagnie Générale de Géophysique for the year ended December 31, 2002 included in its Annual Report (on Form 20-F) for the year ended December 31, 2004 filed with the Securities and Exchange Commission.

Neuilly-sur-Seine and Paris La Défense, France
July 8, 2005

BARBIER FRINAULT & AUTRES	ERNST & YOUNG Audit
/s/ Pascal Macioce	/s/ Bruno Perrin
Pascal MACIOCE	Bruno Perrin