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Method for determining the extent of recovery of materials injected into oil wells during oil and gas exploration and production

  • US 20030006036A1
  • Filed: 05/23/2002
  • Published: 01/09/2003
  • Est. Priority Date: 05/23/2001
  • Status: Active Grant
First Claim
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1. A method for determining the extent of recovery of materials injected into a oil well comprising the steps of:

  • a) preparing a material to be injected into an oil well;

    b) admixing therewith a chemical tracer compound at a predetermined concentration;

    c) injecting the admixture into an oil well;

    d) recovering from the oil well a production fluid;

    e) analyzing the production fluid for the concentration of the chemical tracer present in the production fluid; and

    f) calculating the amount of admixture recovered from the oil well using the concentration of the chemical tracer present in the production fluid as a basis for the calculation.

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