XPLORE System Modules

Overview
XPLORE offers four systems modules; allocation module, optimisation module, virtual metering module, emissions monitoring module. System modules bring together the XPLORE framework and a number of calculation modules to provide a higher level of monitoring than can be achieved through unit calculation modules on their own. For example, allocation systems may require the XPLORE framework to access, filter and reconcile field metering data and may then require the addition of a system model to provide real-time online shrinkage factors. The XPLORE allocation system combines this into a single system and presents the data to the user via the web-based interface.

XPLORE Allocation System Module
The allocation system module utilises all of the aspects of XPLORE to provide a state of the art, accurate and easily configurable allocation system. XPLORE is designed to connect to any modern control system or data historian thereby reading production data such as flowrates, pressures, temperatures is a standard feature. This data can be filtered and more importantly reconciled to provide improved accuracy in the flow measurement. Shrinkage factors or custom calculations can be included as configuration data, again a standard feature of XPLORE, providing an entire allocation system.

For more complex systems, the Xodus Simulation Manager (XSM) functionality can be utilised. The XSM allows any simulation package to be connected to XPLORE providing more advanced information that can be used as part of the allocation system. For example a steady state Hysys® model can be used to provide real time shrinkage factors. The XSM can connect seamlessly to Hysys® (both steady state and dynamic) therefore providing an entire allocation system within a single system.

XPLORE Optimisation System Module
The optimisation module utilises the functionality of the XPLORE system and the XSM. To provide accurate, robust, real time optimisation relies on two main factors being achieved; accurate real-time data and robust modeling techniques. The data filtering, reconciliation and calculation modules can be combined to ensure that the measured data from the field is reconciled to provide accurate data. Xodus Technology are at the forefront of simulation, both steady state and dynamic. We understand the key parameters involved in developing a robust model that can be reliably operated in a remote location. Combining XPLORE’s data reconciliation and Xodus Technology’s modelling techniques allow us to a state of the art optimisation system module.

XPLORE Virtual Metering System Module
The virtual metering system module uses similar technology to both the optimisation and the allocation modules. XPLORE is used to obtain real time operational data and XPLORE calculation modules are used to reconcile this data. Virtual metering is achieved by using calculation modules or simulation technology to predict flows, pressures, temperatures and compositions in areas of the process that have no or little instrumentation.

Virtual metering offers the following benefits:
› Optimisation of instrumentation design. XPLORE can be used as the virtual instrument, saving on hardware, improving integrity through reduced leak paths and saving on maintenance.

› Improved measurement. Reconciliation will provide a higher degree of accuracy, for example orifice plate calculations can be carried out using reconciled pressures, temperatures and composition therefore improving flowrate calculations.

› Improved diagnostics. Virtual metering will provide indication of instruments that are accurate and instruments that have drifted since the last calibration.

XPLORE Emissions Monitoring System Module
Emission monitoring allows the operator to monitor turbine performance and monitor the vent gas composition and flowrate. The module monitors CO2, CO, NOx, SOx, UHCs and VOC emissions and comes complete with XPLORE visualization, a reporting tool and a benchmarking tool. The benchmarking tool enables the operator to enter sample data and “tune” the calculations to match real time data thus allowing the operator to meet IPPC regulations.

Click on images to enlarge.

Flare Consent.		EU ETS – Gas Turbine.		EU ETS Permit Copy.		IPPC – Gas Turbine.
EU ETS – Actual vs. Allowance vs. Predicted.		Environmental KPIs (Year to Date).		EEMS Reporting.		Compressor Monitoring.

For more information contact:
Steve Hamilton, Director – Technology Division
Tel: +44 (0)1224 628307 Email: