Thick presalt oil pay found at Santos Carcara well

A group led by Petroleo Brasileiro SA (Petrobras) has encountered 400 m of continuous oil pay at the Carcara deepwater discovery well on the BM-S-8 block in the Santos basin offshore Brazil.

One participant in the well described the results as among the thickest pay yet encountered in the Santos basin presalt (see map, OGJ, June 16, 2008, p. 39).

In late May, when it had drilled to 5,926 m, Petrobras said the well had encountered 171 m of continuous oil column and was still in the oil zone (OGJ Online, June 1, 2012). The oil is reported to be 31° gravity. Present depth is 6,213 m.

Carcara is in 2,027 m of water 232 km offshore Sao Paulo state and 20 km from the Bem-te-Vi discovery well. Petrobras is block operator with 66% interest, Petrogal Brasil has 14%, and Queiroz Galvao Exploracao e Producao and Barra Energia have 10% each.

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