-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131" version="1.3.1">
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	This file is distributed under the POSC License Agreement at
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 <xsd:include schemaLocation="typ_dataTypes.xsd"/>
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-<xsd:group name="grp_message">
-<xsd:annotation>
 <xsd:documentation>The non-contextual content of a WITSML Message object.</xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="objectReference" type="witsml:refObjectString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A reference to an object that is defined within the context of a wellbore.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="subObjectReference" type="witsml:refObjectString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A reference to an sub-object that is defined within the context of the object referenced by objectReference. This should only refer to recurring components of a growing object.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTim" type="witsml:timestamp" minOccurs="1" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time the information is related to. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="activityCode" type="witsml:ActivityCode" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A code used to define rig activity.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="detailActivity" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Custom string to further define an activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="md" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Along hole measured depth of measurement from the drill datum. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdBit" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Along hole measured depth of measurement from the drill datum. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="typeMessage" type="witsml:MessageType" minOccurs="1" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Message type. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="messageText" type="witsml:commentString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Message text. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="param" type="witsml:indexedObject" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>Any extra numeric data. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="severity" type="witsml:MessageSeverity" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Severity of incident. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="warnProbability" type="witsml:MessageProbability" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A warning probability (applies to warning).</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:group>
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 </xsd:schema>