DLIS-RP66-PART-9

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Part 9: DLIS Schema Dictionary
Edition 1
1 - ScopeThis part lists and describes reference values for attributes belonging to the Digital Log Interchange Standard (DLIS) schema (see Part 8).
2 - AuthorityChanges to the DLIS schema dictionary are recommended by the Subcommittee On Recommended Format For Digital Well Data and approved by POSC. Changes may include addition of new terms or removal of obsolete terms. A term removed in one edition may be restored in a later edition only if restored with its previous meaning. A new edition of the DLIS schema dictionary occurs when approved by the Executive Committee and has an edition number obtained by adding 1 to the previous edition number.
3 - ConceptsThe tables presented here contain the reference values defined under the DLIS schema for attributes of either the basic schema or the DLIS schema. There is one table per attribute. Each attribute is identified by its label preceded by a the object type to which it belongs and separated by a colon (:). Object types belonging to the basic schema are identified by the prefix `0/' denoting its schema code. Tables are presented alphabetically by object type first and by attribute second.
All DLIS schema reference values use representation code IDENT if written in DLIS schema objects and TIDENT if written in basic schema objects.
4 - CALIBRATION-MEASUREMENT Reference Values
4.1 - PHASECurrently-defined values correspond to the phase of a calibration measurement.
Table 1 - CALIBRATION-MEASUREMENT:PHASE Reference Values
Reference Value
Description
AFTER
After survey calibration.
BEFORE
Before survey calibration.
MASTER
Master calibration.
5 - 0/CHANNEL Reference Values
5.1 - KINDCurrently-defined values correspond to measurements of index channels in and about the borehole.
Table 2 - 0/CHANNEL:KIND Reference Values
Reference Value
Description
ANGULAR-DRIFT
Channel value represents angular drift.
MEASURED-DEPTH
Channel value represents measured depth.
NON-STANDARD
Channel value is a non-standard measurement.
RADIAL-DRIFT
Channel value represents radial drift.
TIME
Channel value represents elapsed time.
VERTICAL-DEPTH
Channel value represents vertical depth.
The reference value MEASURED-DEPTH replaces BOREHOLE-DEPTH used in RP66 V1. The change is made to achieve conformance with terminology found in the
Petroleum Industry Data Dictionary (PIDD)
.
5.2 - PROPERTIES
Table 3 - 0/CHANNEL:PROPERTIES Reference Values
Reference Value
Description
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.
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.
COMPUTED
The data is the output of a transform, e.g., function former, based on input data from a single tool.
DEAD-TIME-CORRECTED
The data has been corrected for dead time.
DEPTH-MATCHED
The data has been aligned along its depth index against a reference data source.
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.
FILTERED
A filtering process has been applied to the data.
HOLE-SIZE-CORRECTED
The data has been corrected for hole size effect based on the value of a hole size input.
INCLINOMETRY-CORRECTED
The data has been corrected to standard directional references (vertical axis and North axis).
LITHOLOGY-CORRECTED
The data has been corrected or computed based on the value of a matrix lithology parameter.
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.
MODELLED
The data is the output of a theoretical model and is not derived from any mea- sured quantity.
MUD-CORRECTED
The data has been corrected for effects of mud.
MUDCAKE-CORRECTED
The data has been corrected for mudcake effect.
NORMALIZED
The data has been corrected so that its range corresponds to a prescribed norm.
OVER-SAMPLED
Interpolated data samples have been added to the original data to align this data with other data.
PATCHED
The original data values have been replaced at specific levels. This is normally done to remove spurious values (e.g.,spikes).
PRESSURE-CORRECTED
The data has been corrected for hydrostatic pressure (mud weight).
PROPRIETARY
Data is proprietary to the producer and is not warranted for use by the consumer.
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.
SAMPLED-DOWNWARD
The original sampling direction is down- ward.
SAMPLED-UPWARD
The original sampling direction is upward.
SPEED-CORRECTED
The data has been corrected for variations of the downhole tool speed.
SPLICED
The data has been obtained by concatenat- ing two or more other data sources.
SQUARED
The data is the result of a squaring process, i.e., a process that converts a smooth func- tion into a step function.
STACKED
The data is the sum of two or more other data sources.
STANDARD-DEVIATION
The data represents the estimated devia- tion, due to environmental factors or inco- herence of the computational model, of another data source.
STANDOFF-CORRECTED
The data has been corrected for standoff effect.
TEMPERATURE-CORRECTED
The data has been corrected for tempera- ture effect based on the value of a tempera- ture source.
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.
6 - 0/COMPUTATION Reference Values
6.1 - PROPERTIESSee Table 3.
7 - EQUIPMENT Reference Values
7.1 - LOCATION
Table 4 - EQUIPMENT:LOCATION Reference Values
Reference Value
Description
LOGGING-SYSTEM
Equipment is on or in the logging system unit.
REMOTE
Equipment is on the surface away from the rig and logging unit system.
RIG
Equipment is on the rig.
WELL
Equipment is in the borehole.
7.2 - TYPE
Table 5 - EQUIPMENT:TYPE Reference Values
Reference Value
Description
ADAPTER
Adapter
BOARD
Processor board
BOTTOM-NOSE
Bottom nose
BRIDLE
Bridle
CABLE
Cable
CALIBRATOR
Calibrator
CARTRIDGE
Cartridge
CENTRALIZER
Centralizer
CHAMBER
Sample chamber
CUSHION
Water cushion
DEPTH-DEVICE
Depth measuring device
DISPLAY
Display
DRAWER
Processor drawer
EXCENTRALIZER
Excentralizer
EXPLOSIVE-SOURCE
Explosive source
FLASK
Flask
GEOPHONE
Geophone
GUN
Gun
HEAD
Head
HOUSING
Housing
JIG
Calibration jig
JOINT
Joint
NUCLEAR-DETECTOR
Nuclear detector
PACKER
Packer
PAD
Pad
PANEL
Panel
POSITIONING
Positioning device
PRESSURE-GAUGE
Pressure gauge
PRINTER
Printer
RADIOACTIVE-SOURCE
Radioactive source
SHIELD
Shield
SIMULATOR
Simulator
SKID
Skid
SONDE
Sonde
SPACER
Spacer
STANDOFF
Standoff
SYSTEM
Processor system
TOOL
Tool
TOOL-MODULE
Tool module
TRANSDUCER
Transducer
VIBRATION-SOURCE
Vibration source
8 - MESSAGE Reference Values
8.1 - TYPE
Table 6 - MESSAGE:TYPE Reference Values
Reference Value
Description
COMMAND
Operator command.
RESPONSE
Operator response.
SYSTEM
System message.
9 - 0/PARAMETER Reference Values
9.1 - PROPERTIESSee Table 3.
10 - 0/ZONE Reference Values
10.1 - DOMAIN
Table 7 - 0/ZONE:DOMAIN Reference Values
Reference Value
Description
MEASURED-DEPTH
Zone interval is measured depth.
TIME
Zone interval is elapsed time.
VERTICAL-DEPTH
Zone interval is vertical depth.
The reference value MEASURED-DEPTH replaces BOREHOLE-DEPTH used in RP66 V1. The change is made to achieve conformance with terminology found in the
Petroleum Industry Data Dictionary (PIDD)
.

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