AFL IV with Dynamometer
The Acoustic Fluid Logger IV with Dynamometer lets you test the efficiency of the pumping unit, and then compare those tests over time, like in this overlay of Dynamometer Cards which show the change in fluid pound.
The Acoustic Fluid Logger with Dynamometer delivers a complete physical exam of the pumping unit at the well site, and also finds the fluid level in a well and provides all data for analysis.
The AFL Dynamometer produces a quick overview of both pumping unit efficiency and fluid level status. Saved data reports can build a comparative record which reveals changes in well conditions over time.
This dual-use, multi-tasking device and components gathers surface and downhole dynamometer pump cards, standing and traveling valve tests, motor current readings and counterbalance measurements, as well as fluid level, pump intake pressure and bottomhole pressure and a host of other readings.
Designed for use with an operator's existing field computer, the Acoustic Fluid Logger with Dynamometer eliminates the need to bind a captive computer into the testing instrument, and also reduces cost to the customer.
Dynamometer Optional Components
Sage Quick Clamp
The Sage Quick Clamp Load Cell transducer clamps to the polished rod below the carrier bar in a quick set-up motion. The load cell does not change the relationship between the pump and the barrel, making it ideal for a quick dynamometer analysis.
The Sage Quick Clamp Load Cell allows easy gathering of surface pump cards, calculation of downhole pump cards, standing valve check and traveling valve checks. This allows complete pumping unit diagnostics.
The Sage Quick Clamp Load Cell is designed for fast hand-operated clamping action, for an easy tool-free installation which reduces set-up time.
Three jaw sets engraved with sizes of 1-1/8", 1-1/4" and 1-1/2" are included with the Sage Quick Clamp Load Cell, permitting easy change-out of the load cell's interior jaws for different rod sizes, with fine tuning accomplished by adjusting the ball seat on the clamp.
The transducer’s high sensitivity to changes in the load weight provides a detailed dynamometer card for accurate rod pump analysis. Precision stainless steel moving parts provide for a reliable field operation. And, the on-board thermal correction provides excellent stability in harsh oilfield conditions.
The Sage Quick Clamp Load Cell is approximately 3 ¾” diameter x 10 ¾” handle length. Software allows for easy calibration and data collection with the AFL IV with Dynamometer.
Horseshoe Load Cell
The Horseshoe Load Cell is inserted into the pumping unit, between the carrier bar and the permanent rod clamp, for dynamometer testing.
Working with the Sage Quick Clamp or Horseshoe Load Cell during a Dynamometer test, the Position Sensor: String Transducer measures movement of the rod string by connecting to the carrier bar and recording the stroke of the pumping unit during the pump cycle.
Sage Current Clamp
When clamped around the power wires in the control panel, the Sage Current Clamp measures motor current throughout the pumping cycle, on both the upstroke and the downstroke, for quick pumping unit balance.
Analysis of the pumping unit requires many inputs of data. While the load cell is recording the load during the pump cycle, the string transducer is simultaneously recording the stroke.
The AFL IV with Dynamometer software combines the the load and stroke data points, and plots them graphically together during a complete pump cycle to create a surface dynamometer card. Stroke is the horizontal axis on the surface card graph, and load is the vertical axis.
Sage DYN Dynamometer Software
Downhole dynamometer cards are made possible by entering the known rod string data from the well onto the Sage DYN screen. The resulting downhole dynamometer card represents the calculated load weight and travel distance of the pump downhole.
How do you read a downhole dynamometer card? Each card forms an easily recognized shape trace, shown in the chart below, which are standard in dynamometry testing and diagnosis. For example, this dynamometer card created by the Acoustic Fluid Logger with Dynamometer and its software reveals Fluid Pound, when compared to the shape traces in the Dynamometer Card Shapes Chart.