In June 2015 Neptune successfully completed a displacement pile grouting project for Hyundai Heavy Industries Co. Ltd in Malaysia. Neptune’s grouting solution provided a bespoke stabilisation solution to assist with the installation of the Booster Compression Platform (BCP) jacket, in the Cakrawala field.
The Cakrawala field is located in the Malaysian-Thai Joint Development Area (MTJDA), in Block A-18, approximately 150km north east of Kota Bharu, Kelantan, Malaysia. It was incepted as a joint development between the Malaysian and Thai governments to produce natural gas. The BCP is being installed as part of a brown field rejuvenation effort to reduce receiving pressure at the Central Processing Platform (CPP), hence lowering wellhead abandonment pressures and increasing gas reserves recovery.
The BCP jacket is approximately 48m x 48m x 61.1m and comprises six jacket legs, pile driven into the seabed. Neptune mobilised our state-of-the-art Twin Mixing System to allow continuous pumping and our crew of experienced grouting engineers, supervisors and technicians mobilised to Malaysia to complete the works in-field. A specialist high strength grout mixture, developed through on-shore trials, was pumped into each annulus formed between the jacket pile sleeve and the outer surface of the pile to improve the fatigue resistance of the structure. Grout samples were taken during the batching process to:
- Confirm the specification of the grout
- Measure the density of the grout
- Allow complete compressive strength analysis in our full functioning offshore laboratory.
Pile grouting works commenced on-board the Sapura 3000 early June and were completed ahead of schedule and free from incidents.