Patent ID: 8665108

Claim:
A method of determining a relative quality level of downhole data relating to a downhole parameter of a formation, the method comprising: defining a quality criterion (QC) based on at least one quality parameter; obtaining a first data set from measurements made of a the downhole parameter by a first downhole tool during drilling through the formation; determining a quality assessment value (QAV) for the first data set corresponding to the quality criterion; obtaining a second data set from measurements made of the downhole parameter that includes measurements different from the measurements relating to the first data set obtained by at least a second downhole tool; determining a QAV for the second data set comprising at least one data set corresponding to the quality criterion; determining a quality factor (QF) from the determined QAV of the second data set; and determining the relative quality level of the first data set using the QAV of the first data set and the QF from the second data set.