Patent ID: 11920464
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Measurement (Instruments)
Classification: CPC E  G | IPC E  G

Claim 19:
20. A tangible, non-transitory, computer-readable media having instructions encoded thereon, the instructions, when executed by a processor, are operable to perform operations for:
receiving data from a distributed temperature sensor system installed in a well bore, the data representative of a temporal thermal profile of the well bore;
filtering the data in the frequency domain to generate filtered data representative of the temporal thermal profile of the well bore;
determining a property or parameter associated with the well bore from the filtered data based on the temporal thermal profile;
applying a model based on characteristics associated with the well bore or the well bore fluid associated with the property or the parameter associated with the well bore or the well bore fluid to identify a simulated property or parameter corresponding to the property or parameter associated with the well bore or well bore fluid that is identified based on the temporal thermal profile, wherein the simulated property or parameter comprises a generalized transfer coefficient (k) of a fluid within the well bore and a generalized geothermal profile (T ae), and the model is applied based on a formula comprising:

Ti+1=(1−kδt)Ti+kδtTae 

wherein Ti is an initial temperature, and t is time;
comparing a property or parameter to the simulated property or parameter; and
identifying an unknown property or parameter associated with the well bore or well bore fluid through an inverse model based on the comparison.