Rosa - Total.com

More documents

Recommendations

Info

06 rosa: aN oPTIMIZED DEVELoPMENT sCHEME KEy DaTEs December 2005: > Start of the drilling campaign by the drillship Saipem 10000. > Arrival of the flotel Regalia and commencement of integration works onboard the Girassol FPSO. June 18, 2007: First oil from the Rosa E reservoir. July 21, 2007: Start production from the Rosa D reservoir. september 2007: Start of the drilling campaign by the drillship Pride Angola. october 2007: Start of water injections. A drilling campaign begun in December 2005, scheduled to last until mid-2008, mobilizing two drillships. Two subsea installation campaigns: one from February to May 2006 and the other from November 2006 to March 2007. Two lifting campaigns to install the modules in October 2006 and February 2007.
fPso: > Hull dimensions: 300 m x 60 m x 31 m > storage capacity: 2 million barrels > Weight of the topsides: 23,500 tonnes + 5,600 tonnes of additional equipment dedicated to the rosa development (including 300 tonnes of temporary structures required during the installation phase) > Crude oil production: increased to 270,000 barrels per day with rosa > Liquids processing capacity: increased to 450,000 barrels per day with rosa > Water treatment capacity: increased to 300,000 barrels per day with rosa > Water injection capacity: increased to 700,000 barrels per day with rosa > gas injection: 8 million cubic meters > Power generating capacity: 3 x 25 MW > Capacity of living quarters: 180 people sPs: > 14 producing wells > 11 water injection wells > 4 production manifolds, 4 slots each > Multiphase metering on each producing well sUrf: > 2 Pipe in Pipe production loops (8’’ x 12’’), for 64 kilometers > 2 water injection lines (10’’), for 40 kilometers > 1 Bundled Hybrid offset riser (BHor) tower, a concept developed by saipem, 1,200 meters high, anchored 140 meters west of the fPso > 4 umbilicals (54 kilometers), for monitoring and control of manifolds and producing wells > 4 umbilicals (15 kilometers), for monitoring and control of water injection wells > 4 service lines (3’’), (52 kilometers) rEsErVoIrs: > outflow temperature: 65° C > Initial pressure: 270 bar INNoVaTIVE soLUTIoNs PrEVENTINg HyDraTE forMaTIoN Given the significant distance between the reservoirs and the FPSO, the low subsea temperatures (maximum 4°C), and the high pressures involved, transporting the fluids from the subsea installations to the topsides is a challenge that only compounds the difficulties of the Rosa tie-back: the fluids must be kept at a temperature sufficient to allow processing and prevent hydrate formation. To cope with these stringent thermal constraints, the Group relied on sophisticated numerical calculation models and conducted full-scale tests to qualify the chosen technological solutions. The purpose of this approach was to define the highly insulated subsea production system and flowlines and guarantee their thermal performance. In the event of a production shutdown, the fluids can be maintained above 20°C for 21 hours in the manifolds, for 8 hours in the Christmas trees and jumpers, and for 21 hours in the flowlines and risers. From its outflow temperature of 50°C, the crude must reach the FPSO process modules nearly 20 kilometers away at no less than 35°C. The choice of Pipe in Pipe technology for the production flowlines and risers, the use of a riser tower, highly insulated manifolds and wellheads and the installation of subsea multiphase metering constitute a package of innovative solutions selected by Total that make this gigantic industrial puzzle such an outstanding example of offshore technology.
Page 1 and 2: exploration & production Rosa, ImpR
Page 3 and 4: a comPLex Project, an exemPLarY ach
Page 5 and 6: extRacting value fRom two ReseRvoiR
Page 7: ToTaL IN aNgoLa: a ParTNErsHIP for
Page 11 and 12: 25 WELLs/145,000 BarrELs PEr Day Tw
Page 13 and 14: lOcatiOnS OF rOSa PrOJect deSign an
Page 15 and 16: key dateS > June 2005: commencement
Page 18: TOTAL S.A. Capital stock: 6,062,232

Rosa - Total.com

Create successful ePaper yourself

Delete template?

Save as template?