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Advanced Features of the ePIC™ Rod Pump Controller (RPC) for Intelligent Control
| Control |
| Features |
Benefits |
| Patented air balance control |
Automatically optimizes and controls air cylinder pressure on air-balanced units. |
| Peak energy control functionality |
Inhibits well operation during peak periods of high energy cost as determined by the operator. |
| Motor restart protection |
Prevents motor restart when condensation is present on motor windings. |
| Power fail recovery method |
Inhibits selected load alarms following a loss of power to allow a well to pump down a high fluid level. |
| Programmable (auto-acting) I/O |
Unique monitoring and control applications using analogs, meters, and discretes. |
| Multiple control methods |
Point or quadrant, for lower right or upper left hand portions of the surface cards, and reverse pump-off. |
| Automatic idle time optimization |
Improved determination of idle time adjusted for inflow based production. |
| Pump-up delay timer |
Eliminates immediate pump-off due to incomplete pump fillage following well idle time. |
| Monitor only mode |
Monitor dyno cards without regard for control set points or speed ranges. Ideal for dyno card generation with VFD controlled pumping system. |
| Works with all kinds of wells |
Companies can standardize on one controller for heavy oil, sand, deviated holes, etc. |
| Analysis |
| Features |
Benefits |
| Gross fluid or inferred production calculations |
Accurate estimates of total fluid production from shallow and deep wells without complex well site configuration. |
| Available ESP operating mode |
Allows the RPC to monitor submersible pump controllers. |
| System load analysis |
Host based detection of load cell drift on changing downhole conditions. |
| Cycle and run time buffers |
Easy access to historical data at the well site or using the host software. |
| Dynamometer card buffers |
Access to event cards (Full, Current, Shutdown, etc.) and several cards stored leading up to the event. |
| Expanded alarm features |
Host based alarms (torque, stress, pump efficiency, prime mover size, unbalance, etc.). |
| New stored card types and associated alarms |
Card Area Alarm; Excessive Card Areas; and Hi-Hi, Hi, Low-Low, and Low loads. |
| Alarm |
| Features |
Benefits |
| Extensive communications debugging capabilities |
Capable of analyzing data at the well site to diagnose data transmission problems due to faulty radios, etc. |
| System Configuration |
| Features |
Benefits |
| Improved well site configuration |
Simple menu for configuration, data management, system diagnostics, and load cell calibration. |
| Upgradeable modular hardware design |
Auxiliary I/O, communications, and local user interface options can be added in the field. |
| Flexible, expandable I/O |
Three options available to allow the best match for individual well site applications. |
| Backward compatible parameter structure |
Prevents incompatibility issues with older Weatherford RPC equipment. |
| Basic three level password protection scheme |
Provides security for access to critical RPC setup parameters and well control commands. |
| Optional enhanced graphic display and keypad |
Menu driven user interface for configuration and review of system data including dyno cards, valve checks, and run times. |
| Available ESP operating mode |
Allows the RPC to interface to submersible pump controllers. |
| Local graphic display |
Provides readily understood messages relating to pump system conditions. |
| Digital rod load calibration |
Operator no longer has to manually adjust potentiometers to calibrate the load sensor. |
| Automatic beam mounted load calibration |
Simply enter the correct maximum and minimum loads, no complex multi-step program required. |
| Integrated “single package” design |
Simplifies installation with all components in one unit. |
| Rugged hardware design |
Manufactured to strict standards to ensure long life and reduced cost of ownership. |
| Sensor options |
Position switch, continuous position sensor, polished rod load cell, and beam mounted sensor. |
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