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_qualifier.xsd"/> |
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17 | <xsd:include schemaLocation="attgrp_uid.xsd"/> |
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18 | <!-- --> |
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19 | <xsd:complexType name="cs_lithology"> |
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20 | <xsd:annotation> |
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21 | <xsd:documentation>WITSML - Lithology 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="type" type="witsml:LithologyType" minOccurs="0" maxOccurs="1"> |
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25 | <xsd:annotation> |
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26 | <xsd:documentation>The type of lithology. </xsd:documentation> |
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27 | </xsd:annotation> |
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28 | </xsd:element> |
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29 | <xsd:element name="codeLith" type="witsml:str16" minOccurs="0" maxOccurs="1"> |
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30 | <xsd:annotation> |
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31 | <xsd:documentation>Lithology official codes if desired. Operator typically |
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32 | to define what the codes are. </xsd:documentation> |
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33 | </xsd:annotation> |
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34 | </xsd:element> |
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35 | <xsd:element name="lithPc" type="witsml:volumePerVolumeMeasurePercent" minOccurs="0" maxOccurs="1"> |
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36 | <xsd:annotation> |
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37 | <xsd:documentation>The lithology represents what portion of the sampled interval. |
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38 | The total of the lithologies within an interval should add up to 100 percent. |
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39 | The "undifferentiated" code should be used to fill out to 100.</xsd:documentation> |
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40 | </xsd:annotation> |
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41 | </xsd:element> |
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42 | <xsd:element name="description" type="witsml:commentString" minOccurs="0" maxOccurs="1"> |
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43 | <xsd:annotation> |
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44 | <xsd:documentation>Description of item and details. </xsd:documentation> |
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45 | </xsd:annotation> |
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46 | </xsd:element> |
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47 | <xsd:element name="lithClass" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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48 | <xsd:annotation> |
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49 | <xsd:documentation>Lithology classification description. </xsd:documentation> |
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50 | </xsd:annotation> |
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51 | </xsd:element> |
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52 | <xsd:element name="grainType" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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53 | <xsd:annotation> |
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54 | <xsd:documentation>Granulometry. </xsd:documentation> |
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55 | </xsd:annotation> |
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56 | </xsd:element> |
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57 | <xsd:element name="dunhamClass" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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58 | <xsd:annotation> |
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59 | <xsd:documentation>Dunham limestone classification. </xsd:documentation> |
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60 | </xsd:annotation> |
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61 | </xsd:element> |
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62 | <xsd:element name="color" type="witsml:str16" minOccurs="0" maxOccurs="1"> |
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63 | <xsd:annotation> |
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64 | <xsd:documentation>Lithology color description. </xsd:documentation> |
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65 | </xsd:annotation> |
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66 | </xsd:element> |
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67 | <xsd:element name="texture" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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68 | <xsd:annotation> |
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69 | <xsd:documentation>Lithology texture description. </xsd:documentation> |
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70 | </xsd:annotation> |
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71 | </xsd:element> |
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72 | <xsd:element name="hardness" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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73 | <xsd:annotation> |
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74 | <xsd:documentation>Lithology hardness description. </xsd:documentation> |
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75 | </xsd:annotation> |
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76 | </xsd:element> |
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77 | <xsd:element name="sizeGrain" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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78 | <xsd:annotation> |
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79 | <xsd:documentation>Lithology grain size description. </xsd:documentation> |
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80 | </xsd:annotation> |
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81 | </xsd:element> |
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82 | <xsd:element name="roundness" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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83 | <xsd:annotation> |
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84 | <xsd:documentation>Lithology roundness description. </xsd:documentation> |
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85 | </xsd:annotation> |
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86 | </xsd:element> |
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87 | <xsd:element name="sorting" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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88 | <xsd:annotation> |
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89 | <xsd:documentation>Lithology sorting description. </xsd:documentation> |
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90 | </xsd:annotation> |
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91 | </xsd:element> |
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92 | <xsd:element name="matrixCement" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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93 | <xsd:annotation> |
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94 | <xsd:documentation>Lithology matrix/cement description. </xsd:documentation> |
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95 | </xsd:annotation> |
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96 | </xsd:element> |
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97 | <xsd:element name="porosityVisible" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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98 | <xsd:annotation> |
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99 | <xsd:documentation>Lithology visible porosity description. </xsd:documentation> |
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100 | </xsd:annotation> |
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101 | </xsd:element> |
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102 | <xsd:element name="permeability" type="witsml:str32" minOccurs="0" maxOccurs="1"> |
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103 | <xsd:annotation> |
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104 | <xsd:documentation>Lithology permeability description. </xsd:documentation> |
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105 | </xsd:annotation> |
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106 | </xsd:element> |
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107 | <xsd:element name="densShale" type="witsml:densityMeasure" minOccurs="0" maxOccurs="1"> |
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108 | <xsd:annotation> |
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109 | <xsd:documentation>Shale density for the interval. </xsd:documentation> |
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110 | </xsd:annotation> |
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111 | </xsd:element> |
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112 | <xsd:element name="qualifier" type="witsml:cs_qualifier" minOccurs="0" maxOccurs="unbounded"> |
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113 | <xsd:annotation> |
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114 | <xsd:documentation>A single qualifier. |
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115 | In mudlogging terms, a qualifier is a graphical symbol in the |
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116 | Interpreted Lithology column of the Formation Evaluation Log (aka "the |
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117 | mudlog"). |
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118 | In addition to the major lithologies (e.g., sand, shale, etc) existing in the |
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119 | sample, other minerals (present as accessories or inclusions e.g. chert, |
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120 | pyrite, glauconite) and fossils (forams, oyster shells, bryozoans, etc) |
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121 | may exist and their abundance is generally categorized using ranges |
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122 | such as Trace (less than 10%), Common (10-25%) and |
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123 | Abundant (greater than 25%). These additional minerals and fossils can be of |
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124 | disproportionately great diagnostic and descriptive value. For example, |
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125 | qualifiers can be used to indicate facies changes, marker beds or |
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126 | something that impacted drilling conditions. |
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127 | These qualifiers (representing accessories, inclusions and/or fossils) |
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128 | are used to rapidly and graphically indicate to the recipient of the |
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129 | mudlog that a significant lithological event was encountered while |
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130 | drilling the well. </xsd:documentation> |
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131 | </xsd:annotation> |
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132 | </xsd:element> |
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133 | </xsd:sequence> |
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134 | <xsd:attributeGroup ref="witsml:attgrp_uid"> |
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135 | <xsd:annotation> |
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136 | <xsd:documentation>Unique identifier for the lithology object. </xsd:documentation> |
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137 | </xsd:annotation> |
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138 | </xsd:attributeGroup> |
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139 | </xsd:complexType> |
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140 | </xsd:schema> |
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