BP to re-tender Mad Dog 2 FEED on Atlantis concept
BP is preparing the second call for tender on the front end engineering and design (FEED) for the Mad Dog-2 offshore platform based on the semi-submersible concept used for Atlantis in the US part of the Gulf of Mexico.
Therefore Technip and AMEC carried out a complete FEED work, up to the final costs estimate in order to support the final investment decision (FID) and move into the engineering, procurement and construction (EPC) phase.
BP LoSal water treatment process to fit in Mad Dog-2
As one of the largest oil and gas fields in the Gulf of Mexico, Greater Mad Dog is retaining more than 4 billion barrels of oil equivalent (boe) approximately 225 kilometers south of Louisiana in the Block 738 of the Green Canyon.
In addition to increase the production with a new production platform, BP intends to enhance the recovery rate at the whole scale of the field in introducing its proprietary flooding technology LoSal.
Experienced in Alaska and utmost North Sea some some companies such as BP and Statoil, the injection of water with low salinity has proven to be extremely efficient to improve the recovery rates in old fields.
With this technology Statoil is expecting to ramp up its average recovery rate from 50% to 65% in the coming years.
Branded as LoSal by BP, this technology comes along with some constraints in the offshore environment as it requires an advanced water treatment process to inject 280,000 barrels of water per day (b/d) with the finely tuned salinity.
Therefore the addition of this water treatment plant, plus the additional power supply to operate it on the Mad Dog 2 is the cause of the engineers headache to fit it in the topsides given for this project.
KBR completed Mad Dog-2 plaform conceptual study
– Heave and vortex-induction-motion semi-submersible (HVS) platforms from Technip
Designed by the team made of KBR and its shipyard GVA in Sweden, this Atlantis type of semi-submersible platform offers a high level of integration between the topsides structure and the jacket structure.
In this project these companies hold the respective interests:
– BP 60.5% is the operator
– BHP Billiton 23.9%
– Chevron 15.6%
With a call for tender to be issued in Q2 2014, BP is willing to proceed on fast track with the Mad Dog 2 platform along the FEED phase and the EPC phase in order to anchor it in the Gulf of Mexico still by 2018.