Balmoral Comtec Equipment
Drill riser buoyancy
DURAFLOAT drilling riser buoyancy built to API 16F, with LDV vortex-induced vibration suppression and drag reduction, end protectors and polymer riser clamps.
Description
Balmoral drill riser buoyancy reduces the weight of riser joints, lowering tension and stress when the BOP stack is deployed and retrieved. Modules fit around the riser with openings for auxiliary lines and clamps, and a thrust collar transfers the lift.
Key features
- Integral composite epoxy skin, strapped attachments and built-in flexural pads
- 300mm flats across the DURAFLOAT range for stacking
- DURAFLOAT RIS modules designed, manufactured and tested to API 16F
- DURAFLOAT LDV: integrated VIV suppression and drag reduction, operational to 4500msw; CFD modelling indicates up to 75% VIV suppression and 33% drag reduction, with half-scale tank testing at SINTEF Ocean
- DURAGUARD LDV: retrofit option for existing modules
- Elastomer pin/box end protectors, polymer riser clamps and a global module repair service
Specifications
| Standard | API 16F |
|---|---|
| DURAFLOAT LDV operating depth | 4500msw |
| VIV suppression | up to 75% |
| Drag reduction | 33% |
More from Balmoral Comtec
- Balmoral Cable buoyancy
- Balmoral Umbilical, flexible and riser distributed buoyancy modules
- Balmoral Mooring and installation buoyancy
- Balmoral Anchor pendant buoys (APB)
- Balmoral Bespoke buoyancy: midwater arches and riser tower buoyancy
- Balmoral T-CLAMP
- Balmoral J-tube seals
- Balmoral Bend restrictors, bend stiffeners and bend stiffener connector
- DURAGUARD impact and abrasion protection
- Balmoral HexDefence
- Balmoral COPPERCLAD
- Balmoral GRP and composite subsea structures
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