DORIS delivered a range of services including basic engineering and preparation for calls for tenders. Project outline This plant is fed by 14 gas producing wells drilled before plant start-up and 23 extra wells drilled later. The gas is collected via 5 clusters, provided with production and test manifolds, and sent through trunklines to the Central Processing … Read more


DORIS provided CAPEX and OPEX optimisations through midstream Pre-FEED studies for BONAPARTE FLNG. Project outline The development concept consists of two integrated segments: The FLNG vessel could be redeployed to other areas at the field end-of-life.  The proposed floating liquefaction plant will utilize the gas from the Petrel, Tern and Frigate natural gas fields to produce … Read more


DORIS performed project management, detailed engineering and operations engineering of the heaviest platform in the world. Project outline Providing oil drilling, storage and production, Hibernia is also the first iceberg resistant platform. It can resist the impact of an iceberg having a mass of more than 4 million tonnes and drifting at a speed of up to 1.35 … Read more

Breagh Alpha

DORIS delivered Operations and Maintenance Management services to this southern North Sea asset. Project outline The Breagh Field is in Block 42/13a, approximately 110 Km east of Teesside in 62metres water depth. The Breagh Alpha platform was installed in October 2011, gas production commenced in October 2013. The Breagh A is a 12 slot Minimum … Read more

Replicant FPSOs

DORIS delivered the FEED of Topside for 8 Pre-Salt FPSOs. Project outline The Lula and Guará are the first oil discoveries in the vast Brazilian Pre-Salt cluster, located in the Santos Basin in Blocks BM-S-9 and BM-S-11. The operator, Petrobras, holds the majority interest. BG Group, Repsol Sinopec Brasil and Galp are partners. The joint accumulation of Tupi and Guará … Read more