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Halliburton Flow Meter Mc II Analyzer Manual: Programming Digital Totalizers for Well Testing
Quick Answer: The Halliburton Flow Meter Mc II Analyzer stores the K-factor in pulses per barrel or pulses per gallon. To program the digital totalizer for well testing, set the flow units first, enter the K-factor from the turbine meter tag, then scale the totalizer and pulse output. Wrong units cause the totalizer to read 10 times or 100 times too high.
What the Mc II Analyzer Digital Totalizer Does on a Well Test
The Mc II Analyzer is a flow analyzer and totalizer built for Halliburton turbine flow meters. Well testing crews use it on flowback jobs, drill stem tests, and produced water measurement. The digital totalizer adds up raw pulses from the turbine meter and converts them to barrels, gallons, or cubic meters.
We see this unit on older well test spreads in the Middle East and Southeast Asia. The display gives flow rate and two totalizers. The manual is short but the totalizer setup steps are easy to miss. Most engineers skip the decimal point scaling. This causes a totalizer count that looks correct on the display but is wrong in the RTU data.
Field Programming Steps for the Digital Totalizer
Start with the flow meter K-factor. The K-factor is printed on the turbine meter body or calibration tag. It is usually in pulses per gallon or pulses per barrel. The Mc II Analyzer expects the K-factor in the same units as the flow rate display.
Set the flow rate units first. For oil well testing, use barrels per day or gallons per minute. For gas condensate work, use cubic meters per day if the client report uses metric units. Then enter the K-factor exactly as printed. If the K-factor is 42.8 pulses per gallon, enter 42.8. Do not convert unless the flow unit changes.
Next, scale the totalizer. Pick totalizer units that match the job report. A common setup is barrels with one decimal place for wells under 500 barrels per day. For high rate gas wells, use thousand cubic feet per day with no decimal. Set the pulse output scaling last. Match it to the PLC or RTU input. Many RTU cards read 0 to 100 Hz or 0 to 10 kHz. The Mc II Analyzer pulse output needs a value that does not exceed the input card limit at maximum flow.
After programming, run a 10 barrel check. Fill a small tank or compare the totalizer against a flow computer. In practice, a 5 percent error on a short test usually means the K-factor unit is wrong, not the meter.
Common Mistakes in Well Testing Totalizer Programming
One common problem is using a K-factor in pulses per gallon while the display is set to barrels per day. The totalizer then multiplies by 42 US gallons per barrel or 35 imperial gallons per barrel depending on location. A customer in Oman ran a flowback test and the totalizer showed 42 times the actual volume. The fix was a unit change in the analyzer menu, not a new flow meter.
Another issue is totalizer reset permissions. Some crews reset the totalizer by accident between flow periods. The manual allows a reset lock or access code. On multi-stage well tes
Pulse output scaling causes problems too. If the pulse output is set to 1 pulse per barrel, a low flow rate can produce less than 1 Hz. The RTU might record zero flow for several minutes. Set the pulse output to 10 or 100 pulses per barrel for low rate wells. This gives a smoother signal to the RTU.
When to Replace or Retrofit the Halliburton Flow Meter Mc II Analyzer
The Mc II Analyzer is reliable, but displays and keypads wear out after years of oilfield use. If the totalizer display is dim, the keypad is unresponsive, or the pulse output drifts, a retrofit may cost less than a full replacement. Silver Automation Instruments supplies flow meters and totalizers that connect to existing turbine meters and RTU systems.
For produced water, a DN50 to DN150 electromagnetic flow meter from Silver Instruments works with 4-20 mA HART and pulse output. For diesel or crude oil, an oval gear flow meter with a local totalizer is a direct mechanical replacement. For chemical injection lines from DN15 to DN25, an oval gear flow meter gives a clean pulse output. For high accuracy well testing, a Coriolis mass flow meter gives mass flow and density in one device. All units can be set to output pulses per barrel or pulses per gallon to match the Mc II Analyzer input format.
Send us your pressure in bar, temperature in °C, pipe size in DN, and flow range. We size a compatible flow meter and set the totalizer parameters before shipping. Contact Silver Instruments at Tel +86-25-68650347, Whatsapp +86-25-52155837, or WeChat +86 15365082610.
FAQ
Can I use a Silver Instruments flow meter with the Halliburton Mc II Analyzer?
Yes. Silver Instruments turbine, oval gear, and electromagnetic flow meters can provide a pulse output scaled to match the Mc II Analyzer K-factor input. Share the existing K-factor and units before ordering.
What K-factor do I enter for well testing?
Enter the K-factor printed on the flow meter tag or calibration certificate. The unit must match the analyzer flow rate unit. If the tag shows pulses per gallon, set the analyzer flow unit to gallons before entering the K-factor.
Why does the totalizer show 42 times the tank volume?
The most likely cause is a gallon to barrel unit mismatch. Check the flow rate unit in the Mc II Analyzer and re-enter the K-factor in the same unit. A 42 US gallon per barrel conversion is the usual error on flowback jobs.
How do I set the pulse output for an RTU on a gas well test?
Set the pulse output scaling so the frequency stays within the RTU input range. For a gas well with 0 to 100 Hz input, select a pulse per cubic meter value that produces 20 to 80 Hz at normal flow. Avoid pulse rates below 1 Hz for low flow periods.
What information should I send to Silver Instruments for a well testing flow meter quote?
Send the fluid type, pressure in bar, temperature in °C, pipe size in DN, flow range, and required output signal. We recommend a model and provide totalizer programming support before you order.
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