Publications

The Lima Flow Station as part of Lima Complex, located in the Java Sea approximately 45 nautical miles North East of Jakarta, Indonesia, comprises four bridge linked platforms and a bridge linked flare structure (figure no 1). Seabed subsidence, due to compaction in reservoir along with its production, has reduced the air gap between the topside’s cellar decks and mean sea level. The VERSABUILD deck raising system has been assessed and evaluated among other options as the most economically and technically sound to be used to increase the air gap by raising three of the four platforms, bridges, and flare structure approximately 4 meters. Deck Raising by Synchronized Hydraulic Jacking is unique and literature for methodology is rare. A precedence project utilizing similar hydraulic jacking system for single platform was performed at Devon Energy in Gulf Mexico. Hence assurance process became critical and challenging factor before execution. Various assurance processes were conducted to elevate confidence level by lowering risk. In September 2013 three platforms with interconnecting bridges and flare bridges [Lima Flow Station] were successfully raised in two stages by means of Synchronized Hydraulic Jacking with The execution of this deck raising was performed safely and ahead of schedule. This paper describes the long journey of this project starting from technology selection and assurance process to support for a successful execution.