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US 12,710,386 B2Granted
Methods of identifying types of iron scale
AssigneesKing Fahd University of Petroleum and Minerals, Saudi Arabian Oil Company
InventorsPanagiotis Kirmizakis, Norah Abdullah Aljeaban, Tao Chen, Pantelis Soupios, Ammar El-Husseiny, Mohamed Mahmoud
Life of this patent
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Abstract
This disclosure relates to methods for identifying an onset of a scale formation. This disclosure also relates to methods of identifying a scale type in a hydrocarbon containing formation. This disclosure also relates to determining an amount of a scale formation in a hydrocarbon containing formation.
Claims17
A method for identifying an onset of a scale formation, the method comprising:
- applying an alternating current to a sample from a hydrocarbon containing formation;
- varying the frequency of the alternating current to the sample;
- measuring a phase shift and conductivity magnitude of the applied alternating current;
- identifying an onset of a scale in the sample based on the phase shift and conductivity magnitude;
- differentiating a portion of a signal resulting from the applied alternating current, wherein the portion of the signal results from production tubing;
- and
- determining a real component of a complex conductivity using the phase shift and conductivity magnitude, wherein the real component comprises energy loss;
- and/or
- determining an imaginary component of a complex conductivity using the phase shift and conductivity magnitude, wherein the imaginary component comprises an out-of-phase energy storage.
6 more elements
A method for identifying scale type, the method comprising:
- applying an alternating current to a sample comprising scale from a hydrocarbon containing formation;
- varying the frequency of the alternating current to the sample;
- measuring a phase shift and conductivity magnitude of the applied alternating current;
- identifying a scale type of the sample based on the phase shift and conductivity magnitude;
- identifying a structure of the scale based on the phase shift and conductivity magnitude;
- and
- determining a real component of a complex conductivity using the phase shift and conductivity magnitude, wherein the real component comprises energy loss;
- and/or
- determining an imaginary component of a complex conductivity using the phase shift and conductivity magnitude, wherein the imaginary component comprises an out-of-phase energy storage.
6 more elements
Dependencies are inferred from the claim text.