-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131/addendum/combo" 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="typ_dataTypes.xsd"/>
 <xsd:include schemaLocation="attgrp_uid.xsd"/>
 <xsd:include schemaLocation="cs_fracAdditive.xsd"/>
<!--
                                                     
 -->
-<xsd:complexType name="cs_fracStage">
-<xsd:sequence>
-<xsd:element name="number" type="witsml:positiveCount" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The stage number.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="fracType" type="witsml:kindString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The type of fracturing technique.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="fracAdditive" type="witsml:cs_fracAdditive" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>The fluid additive used for the stage.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="baseFluidType" type="witsml:kindString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The base fluid type used for the stage.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="stageVolume" type="witsml:volumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The volume of fluid used in this stage.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="treatmentPressure" type="witsml:pressureMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The pressure used for the treatment.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="comment" type="witsml:commentString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A remark about the stage.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
-<xsd:attributeGroup ref="witsml:attgrp_uid">
-<xsd:annotation>
 <xsd:documentation>The unique identifier of the event.</xsd:documentation>
 </xsd:annotation>
 </xsd:attributeGroup>
 </xsd:complexType>
<!--
                                                     
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 </xsd:schema>