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Smart ESD for Rotating Equipment

A simple yet intelligent system for pump or pumping unit control with shutdown annunciation and Scada comms
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Due to the widespread availability of various sensors that detect operational problems at wellsites, it is sometimes difficult for lease operating personnel to quickly determine the cause of an equipment shutdown.  In many cases, an oilfield electrician has provided a system of relays that do not give an indication as to what caused a shutdown.  Perhaps the pumping unit is simply not operating as part of a time cycle, and there is no shutdown.  A simple, low cost, yet reliable system has been designed that resolves these issues while providing the ability to communicate with Scada and the more advanced internet based systems of the future.  Additional sensors can be added to collect flowline, tubing, and /or casing pressure, or vibrations sensors can detect wear on mechanical components.

Options for Smart ESD Packages
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Typical devices wired to Smart ESD's digital inputs if desired to shut down equipment.
Option 1
Metrix Vibration Transducer is incorporated to detect mechanical issues before they become severe.  Candidates are rotating equipment such as centrifugal pumps and rotary vane or screw compressors. This version incorporates the control of a VFD cooling fan, as improper cooling fan operation is known to cause premature VFD failure. Plugged air filters are detected as is cooling fan failure.
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Option 2
Many rod pumped wells are not equipped with tubing, casing, nor flowline pressure sensors. This is a low cost method of collecting that valuable data.

Low-cost, field-proven industrial PLC

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Smart ESD from ENCLINE provides a variety of informative shutdown annunciations as well as optional packages to further protect operator equipment:
  • Simple annunciation at wellsite HMI and on smartphone webpage hosted by the device
  • Provision for standard shutdowns like high / low flowline pressure, high separator level, low / high tank level, low oil level, high enviropot level, etc.
  • All values easily polled by most any Scada system
  • PLC fluent in multiple Modbus protocols and MQTT

Examples

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Ex 1. Vibration data showed when pump mechanical seals were prematurely failing
PictureEx 2. Temp Graph for two VFD’s

  • Up/down shows good cooling fan operation
  • Blue operating within 105 to 117 F setpoints
  • Green exceeded “ON” setting at 2 PM
    • Operator found Green had dirty air filter
    • VFD derates at 122 F with 140 F shutdown
  • Note cooling fans only ran 12 hours
    • Turned Off at 9 PM , On at 9 AM
    • Additional off time during cycling
    • Off time extends filter life

Request Information
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  • Home
  • Products
    • Pump Stroke Optimization
    • EAGLE: Electric Gas Lift Compressor
    • Phase Transition Control
    • Pneumatics System Monitor
    • Smart ESD for Rotating Equipment
    • Liquid Piston Vapor Recovery Unit
    • Gas Compressor Expert
    • VAPER App
    • High Frequency Data Collector
    • Intermittent Gas Lift
  • Resources
    • Documentation
    • ENCLINE News
    • Technical Papers
    • Team
  • Contact