| 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.
|
| AVERAGED
| The data is the average of two or more other sources.
|
| 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.
|
| 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.
|
| 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.
|
| 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. |