Well Pressure and Temperature Monitoring Telemetry System

The Department of Natural Resources, Mines and Energy (DNRME) manages the former Underground Coal Gasification (UCG) Site at Hopeland, Queensland.

In accordance with the site management requirements, 7 (seven) wells were drilled across the site to monitor the Macalister A and B seams of the Walloon Coal Measures and the overlying Springbok Sandstone for impacts resulting from previous UCG activities.

DNRME is looking for a suitable supplier who will design, manufacture, install remote data acquisition and control system for the wells, and maintain it periodically.

It is expected that telemetry units will be installed at each well location. Confirmation is required as to whether nested well locations (i.e. NB01D and S, and NB02D and S) can be served with one single data acquisition unit.

The data acquisition and control system must

• Be readily operatable and serviceable with a warranty (relevant certificates must be provided);
• Be reliable and readily repairable with acceptable delays;
• Be sufficiently robust under local environmental conditions;
• Be self‑power efficient with practical standby time;
• Be an engineered system compliant with relevant state and national guidelines and standards;
• Have functionality and capability to acquire pressure and temperature data which is recorded by downhole pressure and temperature gauges installed in each well;
• Have functionality and capability to acquire and record wellhead pressure from calibrated digital pressure gauges or other sensors. These gauges and sensors must be supplied and installed by the Supplier;
• Be able to estimate static groundwater levels for each well, using pressure data with gas and temperature correction functions;
• Have capacity to record data at a range of time intervals between 1 second and 1 day;
• Allow data acquisition intervals to be readily adjusted remotely;
• Have ramping function for data acquisition if significant changes are detected in a well;
• Have functionality to transmit acquired data to a nominated cloud base data storage system (to be proposed by the contractor);
• Have functionality and capacity to allow the Customer to, inter alia:

• Access the data storage system vie internet browser with access control protocols;
• Access data;
• Monitor data on-line;
• Select data of interest;
• Visualise data of interest;
• Change record data intervals; and
• Download data in a readily manipulable format; and

• Be serviced and maintained at agreed time intervals.