Prediction of the wax appearance temperature by correlation with crude oil biomarkers
AssigneeSaudi Arabian Oil Company
InventorsFaisal Alrasheed, Egbukole Okechukwu, Muqbil Alkhalaf, Tao Chen
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Abstract
A method to predict a wax appearance temperature of crude oil includes injecting a sample of crude oil into a chromatography instrument, measuring a plurality of peak areas using the chromatography instrument, determining a composite measurement from the plurality of peak areas, and determining the wax appearance temperature by a correlation of the composite measurement with the wax appearance temperature. A wellbore operation includes determining a wax appearance temperature, comparing the wax appearance temperature to an operating temperature of the wellbore, and forecasting a need for a mitigation program.
Claims17
A method to predict a wax appearance temperature of crude oil comprising:
- injecting a sample of crude oil into a chromatography instrument;
- measuring a plurality of peak areas using the chromatography instrument;
- determining a composite measurement from the plurality of peak areas;
- and
- determining the wax appearance temperature by a correlation of the composite measurement with the wax appearance temperature.
A wellbore operation comprising:
- determining a wax appearance temperature;
- comparing the wax appearance temperature to an operating temperature of the wellbore;
- and
- forecasting a need for a mitigation program.
Dependencies are inferred from the claim text.