Production Riser Tensioner 125 Flyer

User Manual: Production Riser Tensioner 125 Flyer Resource Library

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Production Riser Tensioner

PRT125

Overview

Cameron’s production riser tensioner unit is designed to

maintain the production riser system in tension to prevent

buckling under compressive loading from self weight and

to compensate for ocean currents, waves and relative

movements between the platform and the riser.

In the design and engineering of the system, Cameron

has focused on using well-proven technology, such as

the hydropneumatic principle and robust and reliable

components.

Cameron’s production riser tensioner system includes

the production riser tensioner units and the production

riser tensioner control panel. The PRT125 model has

a maximum rated tension capacity of 125 tonnes (275

kips) and is designed to accommodate the most common

production riser outer diameters. The production riser

tensioner control panel features a panel for monitoring the

operation of each of the production riser tensioner units.

Features and Benefits

• Adjustable tension

• Low-maintenance requirements

• Remote system monitoring of the tension and fluid level

• Relief valves protect the accumulators and tensioner

cylinders from over-pressure situations

• System provides full tension capacity, even if one

cylinder/accumulator unit is out of service

• Piston rod made of carbon steel and coated with a

nonporous layer with corrosion resistance

• Easy and reliable shackle suspension at both ends of the

cylinder

• Monitoring signals are easily available for readout for

the driller in the driller’s control room

• Each cylinder is equipped with a cushioning device at

the rod end (extended) to protect the cylinder should

unintentional movement occur

© 2013 Cameron | 06/13 AD00583DRL

4601 Westway Park Blvd.

Houston, TX 77041

USA

Tel 1 713 939 2211

Andøyfaret 3

N-4623 Kristiansand S.

Norway

Tel 47 380 00 570

drilling@c-a-m.com | www.c-a-m.com

Scope of Supply Options

Four production riser tensioner units, each mainly consisting of a

cylinder, an accumulator, valves, lifting lugs, pressure transmitters

and shackles in both cylinder ends

Fluid filling unit

One production riser tensioner control panel which comprises

valves, digital pressure displays, digital tension displays and alarm

indication lamps

Riser guiding and centralizer system

Set of documentation A structural mounting frame for the cylinder/accumulator

assemblies

Technical Specifications SI Imperial (US)

Production riser tensioner units

Tension capacity 125 tonnes 275 kips

Number of cylinder/accumulator units 4

Maximum vertical riser movement 2134 mm 7 ft

Riser stroke range – upstroke/downstroke 366 mm/1768 mm 1.2 ft/5.8 ft

Cylinder stroke length 2500 mm 8.2 ft

Piston diameter 200 mm 7.87”

Rod diameter 90 mm 3.54”

Cylinder pressure at zero position and maximum tension 132 bar 1910 psi

Cylinder pressure at zero position and maximum tension

with 3 PRTUs 175 bar 2540 psi

Design pressure rod side 207 bar 3000 psi

Design pressure piston side 6 bar 90 psi

Accumulator volume 220 l 58 gal

Angle between cylinder and vertical riser at zero position 13 deg

Hydraulic fluid type Glycol/water-based

Ambient operating temperature -20° C to 40° C -4° F to 104° F

Area classification Zone 1 hazardous area

Technical Specifications SI Imperial (US)

Production riser tensioner control panel

Design pressure 207 bar 3000 psi

Hydraulic fluid type Glycol/water-based

Design temperature -20° C to 40° C -4° F to 104° F

Area classification Zone 1 hazardous area