Petrobras hits 301-m oil column with sixth Libra well

Petroleo Brasileiro SA (Petrobras) reported that the 3-BRSA-1322-RJS well encountered a 301-m oil column in the northwestern portion of its Libra block, confirming similar reservoir characteristics and oil quality found in other wells in the area.

Content Dam Ogj Online Articles 2016 03 Petrobras Libra Map

Petroleo Brasileiro SA (Petrobras) reported that the 3-BRSA-1322-RJS well encountered a 301-m oil column in the northwestern portion of its Libra block, confirming similar reservoir characteristics and oil quality found in other wells in the area.

The results indicate a possible connection between the 3-BRSA-1322-RJS well, also known as 3-RJS-741 and informally as NW5, and the previously drilled wells. The presence of 28º gravity oil was confirmed in reservoirs demonstrating “excellent productivity,” the Brazilian state-owned firm said.

The 301-m oil column is the largest discovered by the Libra consortium thus far. The well is 8 km northeast of discovery well 2-ANP-2A-RJS (OGJ Online, Nov. 25, 2014), and 200 km offshore Rio de Janeiro state.

Content Dam Ogj Online Articles 2016 03 Petrobras Libra Map

Six wells have been drilled thus far on Libra, including the 3-BRSA-1305A-RJS well, also known as 3-RJS-739A, last month (OGJ Online, Feb. 29, 2016). A seventh well, 3-BRSA-1339-RJS or 3-RJS-742, is being drilled in the northwest area.

Petrobras is operator of the Libra consortium with 40% interest. Partners are Royal Dutch Shell PLC 20%, Total SA 20%, and China National Petroleum Corp. and CNOOC Ltd. each with 10%. Contract management is conducted by Pre-Sal Petroleo SA.

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