-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131" version="1.3.1">
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<!--
 -->
 <xsd:include schemaLocation="typ_dataTypes.xsd"/>
<!--
 -->
-<xsd:complexType name="cs_stnTrajMatrixCov">
-<xsd:annotation>
 <xsd:documentation>WITSML Validation Information for Covariance Matrix</xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="varianceNN" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Covariance north north. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="varianceNE" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Crossvariance north east. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="varianceNVert" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Crossvariance north vertical. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="varianceEE" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Covariance east east. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="varianceEVert" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Crossvariance east vertical. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="varianceVertVert" type="witsml:areaMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Covariance vertical vertical. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="biasN" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Bias north. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="biasE" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Bias east. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="biasVert" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Bias vertical. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:complexType>
 </xsd:schema>