Depth conversion techniques in the Gippsland Basin

Abstract

In the offshore Gippsland Basin of southeast Australia, the determination of velocities for depth conversion continues to be a perplexing geophysical problem. This paper examines the causes of velocity variations in the basin, describes three techniques currently in use by Esso Australia Ltd to effect depth conversion and presents the case history of the Veilfin prospect to illustrate the use of these three techniques.