IntelleX™ Ultra-fast Pressure Gauge

Highly flexible, ultra-fast technology...

The IntelleX™ Ultra-fast Pressure Gauge is a highly flexible, ultra-fast sampling, pressure, temperature and acceleration tool ideal for monitoring extremely fast pressure transients in downhole explosive environments.

This Ultra-fast Pressure Gauge is a fusion of new and proven technologies resulting in a much more flexible tool than standard pressure gauges. The tool is capable of performing traditional slow speed pressure gauge functions,
as well as ultra fast sampling when required.

The tool can be programmed with any combination of sample rates and ‘trigger events’ with the tool altering the sampling rate depending on the trigger pressure or acceleration. As soon as the tool detects a trigger event, it will move to ultra-fast sampling mode within 100μs.

The number of trigger events is limited only by the available tool memory (up to 8 Megabytes). For example, the standard tool can record 10 days of standard data at 2 sec/sample with an additional 10 trigger events, recording up to 5 seconds of ultra fast data (40,000 samples/sec) per event.

Applications:

• Well stimulation

• Perforating (for example to confirm dynamic/static underbalance modeling and/or perforation efficiency)

• Fracturing

• Reservior monitoring

• Well testing

• All traditional pressure/temperature surveys

Sample Data:

The IntelleX™ Ultra-fast Pressure Gauge can be programmed to collect slow sample data until ‘triggered’ by an absolute Pressure Threshold or Acceleration Threshold and/or a rate of change of Pressure (delta threshold). The delta pressure threshold is especially useful when it is impossible to signal pressure changes to the gauge, for example when running the gauge during wireline perforating in highly deviated wells.

The following data was collected by the gauge during a North Sea TCP Perforating run with 1000ft of 3-3/8” Perforating guns, and 200ft of empty gun body intentionally run to induce dynamic underbalance. The dynamic underbalance effect can be clearly seen in the pressure data as the pressure drops below the hydrostatic by up to 1500psi at 0.25s after detonation of the perforating guns.