1 | <?xml version="1.0" encoding="UTF-8"?> |
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2 | <xsd:schema |
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3 | elementFormDefault="qualified" |
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4 | attributeFormDefault="unqualified" |
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5 | targetNamespace="http://www.witsml.org/schemas/131" |
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6 | xmlns:witsml="http://www.witsml.org/schemas/131" |
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7 | xmlns:xsd="http://www.w3.org/2001/XMLSchema" |
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8 | version="1.3.1"> |
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9 | <!-- --> |
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10 | <!-- POSC License Agreement |
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11 | This file is distributed under the POSC License Agreement at |
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12 | http://www.posc.org/about/license.shtml. |
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13 | Use of this file constitutes agreement with the POSC License Agreement. |
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14 | --> |
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15 | <!-- --> |
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16 | <xsd:include schemaLocation="cs_interval.xsd"/> |
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17 | <xsd:include schemaLocation="cs_axisDefinition.xsd"/> |
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18 | <!-- --> |
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19 | <xsd:complexType name="cs_channelDefinition"> |
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20 | <xsd:annotation> |
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21 | <xsd:documentation> WITSML - Realtime Channel Component Schema </xsd:documentation> |
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22 | </xsd:annotation> |
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23 | <xsd:sequence> |
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24 | <xsd:element name="mnemonic" type="witsml:str32" minOccurs="1" maxOccurs="1"> |
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25 | <xsd:annotation> |
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26 | <xsd:documentation>Used to differentiate between multiples of same sensor type. |
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27 | The mnemonic must be unique within the context of each group definition. </xsd:documentation> |
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28 | </xsd:annotation> |
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29 | </xsd:element> |
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30 | <xsd:element name="dataType" type="witsml:LogDataType" minOccurs="0" maxOccurs="1"> |
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31 | <xsd:annotation> |
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32 | <xsd:documentation>Specifies the data encoding of a "value". |
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33 | If this value is not supplied, the data type is assumed to be double.</xsd:documentation> |
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34 | </xsd:annotation> |
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35 | </xsd:element> |
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36 | <xsd:element name="classWitsml" type="witsml:RealtimeData" minOccurs="0" maxOccurs="1"> |
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37 | <xsd:annotation> |
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38 | <xsd:documentation>Name of channel from realtime catalog. |
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39 | Although this is optional, it is strongly recommended that it be included. |
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40 | This defines the underlying meaning of the curve (e.g., a porosity). Mnemonic allows multiple |
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41 | channels of the same class to exist in one realtime.</xsd:documentation> |
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42 | </xsd:annotation> |
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43 | </xsd:element> |
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44 | <xsd:element name="columnIndex" type="witsml:nonNegativeCount" minOccurs="0" maxOccurs="1"> |
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45 | <xsd:annotation> |
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46 | <xsd:documentation>A 1-based index of curve data in the data records. |
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47 | This can only be specified if multiplexed is true in the group definition.</xsd:documentation> |
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48 | </xsd:annotation> |
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49 | </xsd:element> |
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50 | <xsd:element name="unit" type="witsml:uomString" minOccurs="0" maxOccurs="1"> |
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51 | <xsd:annotation> |
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52 | <xsd:documentation>The unit of measure for a quantity value. |
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53 | This can only be specified if multiplexed is true in the group definition. |
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54 | For demultiplexed values the unit is carried by each individual value.</xsd:documentation> |
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55 | </xsd:annotation> |
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56 | </xsd:element> |
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57 | <xsd:element name="description" type="witsml:descriptionString" minOccurs="0" maxOccurs="1"> |
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58 | <xsd:annotation> |
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59 | <xsd:documentation>A description of the channel.</xsd:documentation> |
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60 | </xsd:annotation> |
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61 | </xsd:element> |
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62 | <xsd:element name="mnemAlias" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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63 | <xsd:annotation> |
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64 | <xsd:documentation>Name alias for this trace. </xsd:documentation> |
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65 | </xsd:annotation> |
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66 | </xsd:element> |
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67 | <xsd:element name="sensorOffset" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1"> |
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68 | <xsd:annotation> |
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69 | <xsd:documentation>Offset of sensor from a downhole equipment vertical reference (the |
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70 | drill bit, for MWD logs; the tool zero reference for wireline |
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71 | logs). This element is only informative (log values are presented |
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72 | at actual depth, not requiring subtraction of an offset).</xsd:documentation> |
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73 | </xsd:annotation> |
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74 | </xsd:element> |
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75 | <xsd:element name="dataSource" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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76 | <xsd:annotation> |
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77 | <xsd:documentation>Data source, could be tool name/id. </xsd:documentation> |
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78 | </xsd:annotation> |
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79 | </xsd:element> |
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80 | <xsd:element name="interval" type="witsml:cs_interval" minOccurs="0" maxOccurs="1"> |
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81 | <xsd:annotation> |
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82 | <xsd:documentation>A container element that describes |
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83 | how data was gathered, computed, and sampled. |
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84 | This can only be specified if multiplexed is false in the group definition. |
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85 | That is, this can only be specified for a de-multiplexed representation.</xsd:documentation> |
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86 | </xsd:annotation> |
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87 | </xsd:element> |
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88 | <xsd:element name="axisDefinition" type="witsml:cs_axisDefinition" minOccurs="0" maxOccurs="unbounded"> |
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89 | <xsd:annotation> |
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90 | <xsd:documentation>Indicates that the channel is an array channel (i.e., multi-valued samples), |
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91 | and provides meta data by which an axis of the array can be understood.</xsd:documentation> |
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92 | </xsd:annotation> |
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93 | </xsd:element> |
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94 | </xsd:sequence> |
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95 | </xsd:complexType> |
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96 | </xsd:schema> |
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