offshore riser monitoring system

Monitoring System Services

500+ monitoring systems delivered globally

Our structural monitoring and riser analysis experts recognise all the critical aspects involved in implementing subsea structural monitoring systems, and will deliver the most appropriate monitoring solution in order to meet your project needs.

We have designed and implemented over 500 structural monitoring systems for a variety of subsea structures including riser systems, subsea jumpers, flowlines, umbilicals, and wellhead and conductor systems. These have been used to evaluate strength and fatigue performance and calibrate analysis tools and models. The knowledge gained from these monitoring programs has also enabled us to improve our design methods, which has led to considerable cost benefits for our clients.

System Design

Effective monitoring of dynamic offshore structures such as risers requires a good understanding of system response in order to capture enough data to enable meaningful interpretation of response, whilst avoiding an excess amount of data. This requires careful selection of the number of instruments and their locations, instrument accuracy and sensitivity, data communication methods, and methods of attachment and installation. Understanding of available field-proven equipment, when bespoke systems are needed, methods to ensure data verification can be conducted and cost effective means of achieving redundancy are also required to ensure design of an efficient system.

Data Processing & Management

2H can process data from our own instrumentation system designs or third party systems. We  verify and process data quickly and reliably thanks to a suite of automated tools developed in-house that provide sensor data quality checks, time and frequency domain data processing and fatigue analysis for stand-alone, acoustic and hard-wired systems. State-of-the-art, proprietary algorithms are used to calculate the fatigue damage of riser and subsea systems from both wave and current induced motions.

Key Services

Monitoring System Specification

  • Response evaluation and instrument specification
  • Power and communication requirements
  • Attachment device design and installation procedures

Procurement Services

  • Supplier identification and qualification
  • RFQ preparation and bid evaluation
  • Procurement management and expediting
  • Witnessing and evaluation of qualification testing

Data Processing & Management

  • Data verification and screening
  • Detailed data analysis and model calibration
  • Extreme load and fatigue damage calculation
  • On-line data processing and KPI checking

Project Experience

  • Chevron – Tahiti SCR on-line strain and motion monitoring
  • Murphy – Kikeh GAP fluid transfer line monitoring
  • BP – GoM Drilling fleet riser and wellhead system monitoring
  • Woodside – NWS BOP motion monitoring
  • Offshore Brazil – Flexible riser armor wire failure monitoring system
  • Shell – BC10 FPSO mooring line monitoring