Table 3 - 0/CHANNEL:PROPERTIES Reference Values
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Reference Value
| Description
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AUXILIARY
| Data not normally included has been pro- vided at the specific request of the con- sumer, possibly at some additional cost.
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AVERAGED
| The data is the average of two or more other sources.
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CALIBRATED
| A calibration process has been applied to the data.
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CHANGED-INDEX
| The data has been resampled along an index that is different from its original sam- pling index. For example, data that was originally sampled according to time is res- ampled according to depth, or data origi- nally sampled according to measured depth is resampled according to vertical depth.
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COMPUTED
| The data is the output of a transform, e.g., function former, based on input data from a single tool.
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DEAD-TIME-CORRECTED
| The data has been corrected for dead time.
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DEPTH-MATCHED
| The data has been aligned along its depth index against a reference data source.
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DERIVED
| The data is an output of empirical equa- tions or is the solution of log response equations based on input data from more than one tool.
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ENVIRONMENTALLY-CORRECTED
| All known borehole corrections have been applied to the data.
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FILTERED
| A filtering process has been applied to the data.
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HOLE-SIZE-CORRECTED
| The data has been corrected for hole size effect based on the value of a hole size input.
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INCLINOMETRY-CORRECTED
| The data has been corrected to standard directional references (vertical axis and North axis).
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LITHOLOGY-CORRECTED
| The data has been corrected or computed based on the value of a matrix lithology parameter.
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LOCAL-COMPUTATION
| The data is the result of locally-defined computational expressions. Such data is normally experimental.
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LOCALLY-DEFINED
| The object's name has been created by the operator. This name might not be dictio- nary-controlled and may have no semantic association with the object's data.
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MODELLED
| The data is the output of a theoretical model and is not derived from any mea- sured quantity.
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MUD-CORRECTED
| The data has been corrected for effects of mud.
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MUDCAKE-CORRECTED
| The data has been corrected for mudcake effect.
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NORMALIZED
| The data has been corrected so that its range corresponds to a prescribed norm.
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OVER-SAMPLED
| Interpolated data samples have been added to the original data to align this data with other data.
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PATCHED
| The original data values have been replaced at specific levels. This is normally done to remove spurious values (e.g.,spikes).
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PRESSURE-CORRECTED
| The data has been corrected for hydrostatic pressure (mud weight).
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PROPRIETARY
| Data is proprietary to the producer and is not warranted for use by the consumer.
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RE-SAMPLED
| The data has been resampled along its orig- inal index. For example, the original index values may be wrong. Using a curve-fit, it may be possible to compute new data val- ues that fit the original signal more accu- rately along the original index.
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SALINITY-CORRECTED
| The data has been corrected for salinity effect.
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SAMPLED-DOWNWARD
| The original sampling direction is down- ward.
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SAMPLED-UPWARD
| The original sampling direction is upward.
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SPEED-CORRECTED
| The data has been corrected for variations of the downhole tool speed.
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SPLICED
| The data has been obtained by concatenat- ing two or more other data sources.
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SQUARED
| The data is the result of a squaring process, i.e., a process that converts a smooth func- tion into a step function.
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STACKED
| The data is the sum of two or more other data sources.
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STANDARD-DEVIATION
| The data represents the estimated devia- tion, due to environmental factors or inco- herence of the computational model, of another data source.
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STANDOFF-CORRECTED
| The data has been corrected for standoff effect.
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TEMPERATURE-CORRECTED
| The data has been corrected for tempera- ture effect based on the value of a tempera- ture source.
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UNDER-SAMPLED
| Some of the original data samples have been discarded to reduce the amount of data or to align this data with other data. |