The complete paper presents the technological achievements in the subsea scope of the Mero field development. Mero is the third-largest presalt field and the first developed under a production sharing contract (PSC). The paper details the subsea system development for the Mero field that was recognized with the Distinguished Achievement Award by OTC Brazil and how Mero early production system (EPS) operation influenced the final configuration for all Mero projects. The paper also presents the technical challenges that had to be overcome to initiate production successfully.
Introduction
The Libra block is approximately 180 km from Rio de Janeiro in ultradeep water of the Santos Basin varying from 1700 to 2400 m, under a presalt layer. The prospect area is close to 1500 km2. The reservoir fluid has a gas/oil ratio (GOR) of 440 sm3/sm3 and CO2 content in gas varying from 40 to 45% in volume.
