Optimal placement of a casing shoe in a challenging HP environment in the Santos Basin, Brazil: demonstrating the value of look-ahead VSP methodology

摘要

This paper describes a look-ahead VSP operation that took place in the BM-S-52 concession (Block S-M-508), Santos Basin, offshore Brazil in June 2009. S-M-508 is a deepwater block located on the northwestern edge of the Santos Basin pre-salt province, offshore Brazil, which was awarded to partner Petrobras and BG during the 7~(th) licensing round of 2005 (Figure 1). This paper does not address the numerous recent pre-salt Santos Basin discoveries, nor the geological results from the BM-S-52 drilling campaign. For further detail regarding the pre-salt discoveries, the interested reader is directed to the list of references at the end of this article (Carminatti et al., 2008; Gomes et al., 2008; Moreira et al., 2007).