The System
REVIVAL’s proprietary Sensor Hub transmits data wirelessly to a Base Station using advanced, low-power, long-range, communications technology.
When an incident is detected, the Base Station sends an alert to the Cloud which communicates with REVIVAL’s Mobile App notifying the Field Operator.
01.
Continuous autonomous leak detector (CALD)
The Continuous Autonomous Leak Detector (CALD) is a proprietary design which measures the presence of formation fluids. No visual confirmation is required.
- The unique design can be installed in two ways:
- Spiraling around a pipe to sense slow drips, such as stuffing box leaks, well before they become urgent. The Spiral design allows for drainage of rainwater or snow.
- Vertically, on a pipe or pole, to sense leaks that may have migrated away from the wellhead. The vertical orientation contains separate sensors interspaced with thermistors to capture a leak even below or above snow.
- Proprietary leak algorithms analyze data generated by the leak sensors and a bank of confirmatory sensors.
02.
base station
- The Base Station uses advanced low-power, long-range RF technology to communicate with the Sensor Hubs in real time. Critical data is transmitted to the Microsoft Azure Cloud through LTE, with satellite under development for regions where LTE is unavailable. Set up of the Base Station is accomplished through a quick and easy to follow guided process using the Mobile App.
- The Sensor Hubs continuously broadcast conditions to the Base Station, which in turn transmits to the Cloud. In the event of an incident, an alarm is sent immediately.
- Battery life in excess of three months, though a solar option is under development.
- Operating temperatures -40˚ to +85˚ C
03.
sensor hub
The Sensor Hubs collect data generated by a series of internal and external sensors and transmit the data to the Base Station up to 150 meters away. The Sensor Hubs are Certified Intrinsically Safe for Hazardous Locations and can be placed anywhere on a site.
- Internal sensors measure motor function and position of the unit.
- Two inputs for any combination of external sensors: either leak, temperature, or electric current, tank levels* and pressure*.
- Measurements are collected and broadcast in real time.
- Battery life in excess of 1 year.
- Certified Intrinsically Safe. Can be used anywhere on a wellsite.
- Operating temperatures -40˚ to +85˚ C.
* Tank Level and Pressure Sensors under development
04.
Pipe Temperature Sensor
Connected to a Sensor Hub, the sensor measures flowline temperatures to allow the system to alert the Operator to anomalous conditions.
- The sensor gives the operator an indication of flow through the pipeline.
05.
Electric Current Sensor
This sensor provides constant measurement and early alerts to issues such a sanding off, broken rod strings and motor function.
- The Electric Current Sensor is comprised of a Rogowski Coil rated for -40˚ to +85˚ C.
- It connects to a Sensor Hub on the main electric panel and is looped around a U-Amp Loop.
- The Sensor is accurate to a range of 5 to 80 amps and can be customized based on motor capacity.
06.
Mobile App & Desktop Portal
The Mobile App was designed by field operators, and displays only the most critical information:
- Step-by-step guided installation instructions
- Leak status, including location and time
- Well status including vibration motor running, flowline temperatures and electrical current draw
- Internal communications capability including instant messaging, notes and photos
- Analytics
The Desktop Portal does everything the Mobile App does, plus it allows the Administrator to easily manage the REVIVAL system, including:
- Load well lists
- Assign responsibilities
- Allocate individual pieces of equipment to each site
- Analyze data, alarms, response times
Case study
Continuous Autonomous Leak Detection In Action
A. The challenge
leak detection at an indoor injector well
injection wells
Legacy oil wells often produce up to 99% toxic water. The oil and water are separated on the surface, and the water is reinjected into the geologic formation where it was sourced from. Disposal is among the riskier processes in the oil production business, since formation water contains a variety of heavy metals, sometimes sulphur and most often, salt. Injector wells operate under high pressures and pump very large volumes of fluids back into the disposal reservoir.
the risks
Well-informed operation of injectors is critical to minimizing the impact on the environment. Should a high pressure well or pipe leak, it is very possible that fluids will migrate off lease, perhaps even into water bodies. Off lease contamination is a costly and devastating event.
the requirements
Our customer required low-cost, real time leak detection of a produced water injection site, located within a steel building and not visible to passers-by or to a camera.
B. The solution
revival's autonomous, wireless, battery operated leak detectors
The sensors monitor conditions every 10 seconds, and an algorithm correlates the data to assess conditions. This data is communicated wirelessly to a Base Station, located outside of the building.
To allow for constant monitoring without operator involvement or line of sight, REVIVAL installed two sets of Explosive Zone Compliant Autonomous Leak Detectors inside the building, each with a pair of leak and temperature sensors.
C. The Benefit
when a spill did occur
The chart shows the results generated on an actual leak at an injector site in the field. The injector is located in a steel building, invisible to a passer-by or a camera.
- The sensors crossed the alarm threshold within seconds of the release.
- The notifications were sent to the operator’s mobile device within 15 minutes.
REVIVAL’s proprietary Continuous Autonomous Leak Detection system, gives you the confidence that you are responsibly mitigating costly environmental incidents.