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Oil tracing method

  • US 4,755,469 A
  • Filed: 09/27/1982
  • Issued: 07/05/1988
  • Est. Priority Date: 09/27/1982
  • Status: Expired due to Fees
First Claim
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1. A method for tracing a first oleaginous and petroliferous substance comprising:

  • (a) incorporating into a first oleaginous and petroliferous substance an oil-soluble or oil-dispersible tracer material comprising a metal salt of an acid selected from the group consisting of;

    (1) carboxylic acids of the alkanoic series having 5 to 35 carbon atoms;

    (2) carboxylic acids of the alkenoic series having 5 to 30 carbon atoms;

    (3) polyunsaturated aliphatic monocarboxylic acids;

    (4) naphthenic acids; and

    (5) mixtures of two or more of the foregoing;

    said metal selected from the group consisting of Group VIB metals, Group VIIB metals, and lanthanum series rare earth metals;

    (b) utilizing the first oleaginous and petroliferous substance in a manner so that control thereof is lost;

    (c) obtaining a second oleaginous and petroliferous substance suspected to be or to contain a portion of the first oleaginous and petroliferous substance; and

    (d) analyzing the second oleaginous and petroliferous substance for the presence of the metal moiety of the trace material.

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