Neptune plans Gjoa tie-back developments

Neptune Energy and partners plan to develop in parallel Duva oil and gas field and an extension designated P1 of Gjoa oil and gas field in the Norwegian North Sea with subsea completions tied back to the Gjoa platform on PL153 (OGJ Online, Oct. 2, 2018).

Neptune Energy Norge operates both fields, where water depth is about 360 m.

It seeks to develop Gjoa P1 under the plan for development and operation (PDO) covering the Gjoa license, for which it is operator, as a northern extension. Neptune said in a news release it plans install a subsea template but didn’t specify drilling. An image with the news release indicates two oil and one gas well.

Neptune estimates Gjoa P1 recoverable resources at 32 million boe and expects the extension to produce at a maximum rate of 24,000 boe/d.

Neptune has applied for a PDO for Duva field, formerly Cara, on PL636, 6 km northeast of Gjoa field and 12 km northeast of the Gjoa platform.

It plans to install a flour-slot subsea template and drill two oil production wells, one gas producer, and possibly another oil producer.

Duva is to produce at a peak rate of 30,000 boe/d from recoverable resources of 88 million boe.

PL153 (Gjoa) interests are Neptune Energy Norge and Petoro AS, 30% each; Wintershall Norge AS, 20%; OKEA, 12%; and DEA Norge, 8%.

PL636 (Duva) interests are Neptune Energy Norge and Idemitsu Petroleum Norge AS, 30% each; Pandion Energy AS, 20%; and Wellesley Petroleum AS, 20%.