iESP Master Control Unit

Quick Links to Information Below

• iESP Remote Terminal Unit Overview
• Features of the iESP Remote Terminal Unit
• iESP Remote Terminal Unit Applications
• iESP Remote Terminal Unit Functions
• Specifications of the iESP Remote Terminal Unit

PDF Documents

• iESP Master Control Unit
• iESP Master Control Unit - Spanish Version

iESP Remote Terminal Unit Overview

Monitoring and control of operational electric submersible pump installations is critical for several reasons. There are some instances where the well site visits of the pumper or operator are not frequent enough for the proper control on these installations. Some of the reasons for this are:

• Remote locations that are either difficult or dangerous to get to leading to a need to reduce the frequency of visits to the location.
• Prolific producers, of which any down time results in large losses of revenue, require immediate notification of a down system.
• Trouble wells due to dirty power, cyclic reservoirs, solids production, and scale formation require advanced control logic to optimize.

eProduction Solutions offers an intelligent ESP solution (iESP). The EXS-1000 Remote Terminal Unit (RTU) is the heart of the iESP optimization solution providing automatic remote control of ESP produced wells. The iESP interfaces with a variety of smart sensors at the well site to monitor, control, and automate the start-up process for ESP systems. Several features have been incorporated into the RTU including "smart" serial communications interfaces to the local control valve, sand monitor probe, downhole pressure sensor, and ESP controller. The iESP gathers and stores information from each of the smart sensors through a polling process. This information is then processed locally by the iESP or fed back to the control center to allow well analysts to make decisions on system optimization. The result is that real-time decisions are made and implemented which increases overall system efficiency. Optimization of motor speed for variable flux drive applications is also supported.

Additional system benefits are:

• A fully protected remote start-up process of the ESP pumping system, utilized in appropriate situations, minimizes production deferment.
• Remote optimization of the well to provide the maximum produced fluid while maintaining the system integrity within operating limits.

The iESP supports a smart interface to all brand name ESP controllers including Vortex, Keltronics, and Wood Group (CTI).

Features of the iESP Remote Terminal Unit

• Eight digital inputs and eight digital outputs
• Eight analog inputs and two analog outputs
• Two RS-232 serial ports, expandable to four or six
• Controls up to two PID loops
• Eight channel data logger with up to 240 records-per channel
• User programmable via Automatic Control Logic (ACL)
• Communication packages including Cellular Digital Packet Data (CDPD)

iESP Remote Terminal Unit Applications

The utilization of the iESP can range from simple to complex. The use will depend on the end-devices available and actual application. Some of the uses are:

• Data-logging
• Interface to Remote Instrumentation
• Implementation of Custom Well Site Logic

iESP Remote Terminal Unit Functions

With the standard features of the EXS-1000 and the additional interfaces of the ESP firmware, the iESP can perform a multitude of functions. Some of these include:

• Intelligence distributed at the well site
• Access to continuous real-time data
• Twenty-four hour local optimization
• Single point interface to SCADA and MIS systems
• Stand alone capability
• Informed decisions
• Multi-channel real-time data-logging
• Interrogate and/or configure remote instruments

Specifications of the iESP Remote Terminal Unit