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UPCONVERTING NANOPARTICLES AS TRACERS FOR PRODUCTION AND WELL MONITORING

  • US 20200131894A1
  • Filed: 11/07/2019
  • Published: 04/30/2020
  • Est. Priority Date: 06/15/2018
  • Status: Active Grant
First Claim
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1. A method of monitoring well production, the method comprising:

  • introducing an upconverting nanoparticle into a wellbore, the upconverting nanoparticle having a host material, a dopant, and a surface modification such that the upconverting nanoparticle is soluble or dispersible in water, a hydrocarbon oil, or a combination thereof;

    producing an emulsion from the wellbore,contacting the upconverting nanoparticle with the produced emulsion;

    exposing the upconverting nanoparticle to an excitation radiation from an electromagnetic radiation source; and

    identifying a zone that produces the emulsion or monitoring an amount of water or oil in the produced emulsion by measuring an optical property of the upconverting nanoparticle.

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