AUTOMATED METHODS FOR ESTIMATING DIFFERENTIAL LAG TIMES WHILE DRILLING
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
May 23, 2024
filing date -
May 23, 2024
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Abstract
A method for estimating a differential lag time while drilling includes introducing a multiphase tracer into drilling fluid circulating in a wellbore while drilling. The multiphase tracer includes a solid tracer and a fluid tracer in which the fluid tracer includes at least one of a liquid tracer or a gaseous tracer. A first arrival time of the solid tracer and a second arrival time of the fluid tracer are measured at a surface location and evaluated to estimate the differential lag time. The differential lag time includes at least one of a difference between a cuttings lag time and a gaseous lag time or a difference between the cuttings lag time and a liquid lag time.
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