-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131" version="1.3.1">
<!--
 -->
<!--
 POSC License Agreement
	This file is distributed under the POSC License Agreement at
	http://www.posc.org/about/license.shtml.
	Use of this file constitutes agreement with the POSC License Agreement.
 -->
<!--
 -->
 <xsd:include schemaLocation="cs_geologyInterval.xsd"/>
<!--
 -->
-<xsd:group name="grp_convCore">
-<xsd:annotation>
 <xsd:documentation>The non-contextual content of a WITSML Conventional Core.</xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="mdCoreTop" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Top depth of core interval. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdCoreBottom" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Bottom depth of core interval. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimCoreStart" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time when coring commenced (cutting new core). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimCoreEnd" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time when coring complete (end of cutting new core). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreReference" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Manufacturer core reference. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coringContractor" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Name of coring contractor. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="analysisContractor" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Name of analysis company. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreBarrel" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Core barrel type. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="innerBarrelUsed" type="witsml:logicalBoolean" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Inner barrel used? Values are "true" (or "1") and "false" (or "0"). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="innerBarrelType" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Core inner barrel type. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="lenBarrel" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Length of core barrel. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreBitType" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Core bit type. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="diaBit" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Core bit outer diameter. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="diaCore" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Core cut diameter. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="lenCored" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Cored interval length. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="lenRecovered" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Length of core recovered. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="recoverPc" type="witsml:volumePerVolumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Calculate recovery (commonly in percent). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="inclHole" type="witsml:planeAngleMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Wellbore inclination over cored interval. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreOrientation" type="witsml:logicalBoolean" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>True if the core can be re-oriented in space after extraction when a tool-face has been used. Values are "true" (or "1") and "false" (or "0"). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreMethod" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Method to catch core - fiberglass barrel, conventional, etc. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreTreatmentMethod" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Preservation method description. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreFluidUsed" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Mud type in use when cutting core. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="nameFormation" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Name of formation penetrated. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="geologyInterval" type="witsml:cs_geologyInterval" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Set of Geological intervals, descriptions, gas readings for the cored interval. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="coreDescription" type="witsml:commentString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>General core description. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:group>
<!--
 -->
 </xsd:schema>