Karoon Energy Ltd., Melbourne, has completed its two-well development drilling and completion program in Patola oil field in the Santos basin off the Brazilian coast near Sao Paulo.
The Noble Developer rig installed wellheads and Christmas trees with work to begin shortly to install the remaining subsea infrastructure, including flowlines, umbilicals, and sundry pipework, the company said.
The field, in Karoon’s 100%-owned concession BM-S-40 in 280 m of water, will be developed as a subsea tie-in to the Cidade de Itajai floating production, storage, and offtake vessel that is currently producing the company’s nearby Baúna field.
Commissioning of the new infrastructure and first production from Patola is scheduled to begin by the end of first-quarter 2023.
Patola field was discovered in 2011. Karoon made final investment decision for development in June 2021. Oil will be produced from an Oligocene-age turbidite sandstone reservoir.
Contingent 2C resources are estimated to be 13 million bbl and initial production from the two vertical wells will be around 10,000 b/d.
The rig is being mobilized to drill the BAN-1 intervention well in Baúna field center. The well is expected to reopen a lower oil zone that had previously been in production.
On completion of BAN-1, the rig will move to nearby Neon field to drill the first of two control wells.