Pipeline Restart Loop: Yield Strength

Pipeline Restart Loop for pipeline blocking and yield strength tests. By F5 Technologie, Germany
Pipeline Restart Loop

Deposition of complex and heavy organic compounds in crude and heavy oil can cause a number of severe problems up to pipeline blocking. This new instrument provides the ability to develop and test inhibiting chemicals.

Our Pipeline Restart Loop offers a variety of testing procedures:

  • Pipeline blocking simulation with exchangeable test pipelines
  • Yield strength (yield point) tests
  • Flow improver / deposition inhibitor testing

The easily exchangeable test pipeline is filled with the sample and cooled down to a set temperature. The cooling rate is programmable (temperature profiles).

Pipeline Restart Test: Heavy Crude Oil
Pipeline Restart Test: Heavy Crude

After cooling, the pump starts to press the sample through the pipeline at very low flow rates. The increasing pressure is measured at high sample rates. The pressure/time curve shows the yield break at its maximum. Measurements with untreated samples can be compared to measurements with treated samples to show the chemical's effectiveness.

The especially designed high-accurate pump system provides an absolutely pulsation-free flow, with maximum pressure starting at zero flow rate. So,  realistic shear and flow regimes inside the test pipeline are possible.

The exchangeable test pipelines is available with a length up to 20 m at OD 1/4", even longer at smaller diameters. Of coursee, bigger diameters are also available.

Technical Data

  • Absolute pressure range: 50 bar (725 psi), alternatives possible
  • Temperature ranges:
    - of sample: ambient to +80 °C
    - of test loop: -30 °C to +90 °C (alternatives available)
  • Flow rate: 0.01 to 80 ml/min, alternatives available
  • Display: PC display and temperature display
  • Software: MS Windows 9x/2k/XP
  • Power supply: 240 VAC / 50 Hz or 110 VAC / 60 Hz
  • Power consumption: 3,100 W max