Chemically tagged polymers for simplified quantification and related methods

摘要

Method comprising the steps of obtaining a sample of a return drilling fluid, the return drilling fluid containing a tagged detectable additive, the tagged detectable additive comprising a polymer comprising at least one chemical tag bonded to the polymer; and determining a concentration of the tagged detectable additive in the return drilling fluid based on a spectroscopic signal of the sample. The tagged detectable additive may include a polymer comprising at least one chemical tag bonded to the polymer.

主权项

1. A method comprising:
obtaining a sample of a return drilling fluid, the return drilling fluid containing a tagged detectable additive, the tagged detectable additive comprising a polymer comprising at least one chemical tag covalently bonded to the polymer wherein the chemical tag comprises a plurality of compounds containing radio-labeled isotopes of at least one from the group consisting of 13N, 18F, 76Br, 123I, and 124I; and determining a concentration of the tagged detectable additive in the return drilling fluid by measuring the concentration of the at least one radio-labeled isotope in the sample.