Method for quantitatively assessing stability additive performance at field dosages
AssigneeBaker Hughes Holdings LLC
InventorsCarl E. Weaver, Roger D. Metzler, Koushik Gumaste
Life of this patent
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Abstract
The impact of a stabilizing additive for treating oil-based fluids having destabilized solids, such as asphaltenes and polynuclear aromatics, may be quantitatively assessed, by determining the settling rate of flocculated destabilized solids in samples of untreated oil-based fluids and oil-based fluids treated with the stabilizing additive through the use of a turbidity meter or nephelometer while the field and quantifying the difference between the two settling rates to determine if a change in the amount of stabilizing additive applied to the oil-based fluid is necessary.
Claims16
A method for determining the impact of a stabilizing additive on the settling rate of destabilized solids in an oil-based fluid comprising:
- preparing a sample of an oil-based fluid containing flocculated destabilized solids and a field dosage amount of a stabilizing additive and preparing a sample of an oil-based fluid containing flocculated destabilized solids with no stabilizing additive;
- and
- measuring the change in turbidity over time of each sample to determine a settling rate of the flocculated destabilized solids in each sample;
- and
- quantifying the difference between settling rate of the flocculated destabilized solids in the sample of the oil-based fluid having a field dosage amount of stabilizing additive and the settling rate of the flocculated destabilized solids in the sample of the oil-based fluid having no stabilizing additive to assess performance of the stabilizing additive.
Dependencies are inferred from the claim text.