RPD System & Jacking Control Modification

Monitor Systems were contracted by a major drilling contractor to supply their offshore jack-up rig with a retrofit M1000 RPD system and modify the existing control system to allow for singe chord jacking.

Now installed and commissioned Monitor Systems M1000 Rack Phase Differential monitoring system with single chord jacking functionality provides the operator with an accurate electronic, mechanical system for measuring and recording the rack phase difference of all three legs of the jack-up rig. Monitoring of rack phase difference during jacking operations can give an early indication of possible leg over-stresses.

Jack-up Rig fitted with RPD System

Monitor Systems manufactured the system on time and within budget, providing one complete RPD monitoring & control system for the jack-up currently based in Thailand.

Now installed and commissioned Monitor Systems M1000 Rack Phase Differential monitoring system with single chord jacking functionality provides the operator with an accurate electronic, mechanical system for measuring and recording the rack phase difference of all three legs of the jack-up rig. Monitoring of rack phase difference during jacking operations can give an early indication of possible leg over-stresses.

RPD System Overview

The system comprises one daisy-wheel sensor per leg chord, three per leg, nine in total for the jack-up rig. This allows the RPD system to control single chord jacking, speeds up deployment and recovery of the legs and eliminates the high risk of serious damage and safety implications to legs, jack-house equipment, rack chords and surrounding braces.

The retrofit M1000 RPD monitoring system provides an extremely fit for purpose, automated, real time management tool for safely and speedily lowering and positioning the legs of jack-up rigs in all types of seabed terrain. M1000 RPD also provides the operator with the corrective action to be taken to solve problems identified by the system and includes a fail-safe monitor that automatically shuts down the jack-up process if the operator does not respond fast enough to a warning signal.

Operator Stations

The main user interface is via two 21” HMIs. These interfaces display all RPD information graphically and numerically as well as displaying all alarm information, historical trending data and maintenance procedures.

Our M1000 RPD system can be manufactured for any jack-up rig, and optionally installed and commissioned offshore. For a full overview of our system, please contact us for more information.

What are the M1000 RPD system benefits? ... click on our presentation video below.