CASE STUDY 6:
The client required six reelers which met the above specification. The specific challenge of this brief however, highlighted deployment would be from a platform with severe space restrictions. The engineering challenge was to minimise the on-deck footprint during operation.
- Zone 1 Hazardous Area
- Ambient Temperature – 10°C to 45°C
- Variable Speed
- Hydraulic Drive
- Constant tension
- Deployment Angle from 0 – 45°
- Safety Relay Circuit
- Electric Controls
- TH reel to have wireless remote control
A ‘stackable’ design was proposed in which the workover reel could be stacked on top of the annulus reeler. A bespoke hydraulic manifold was designed to allow the use of standard hydraulic components. Controlling the drive system using hi-torque/low speed motors negated the need for a gearbox. A swing out style of diverter sheave was engineered on all the reelers. Local, remote and wireless controls were incorporated on the tubing hanging reeler.
This unit was delivered in less than 6 months. The ATEX and IECEx approved reelers met the full client spec, ie. 37kW drive, operational at 50°C ambient temperatures within in Zone 1 hazardous areas.