-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131/addendum/combo" version="1.3.1">
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 <xsd:include schemaLocation="cs_testVolume.xsd"/>
 <xsd:include schemaLocation="cs_fluidRate.xsd"/>
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-<xsd:complexType name="cs_productionTestResults">
-<xsd:annotation>
 <xsd:documentation>Oil, gas, and water volumes and rates measured during the well test. The volumes allow either actual volumes or standard (corrected) volumes. The densities are also recorded with the volumes.</xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="oilVolume" type="witsml:cs_testVolume" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Oil volumes measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="oilRate" type="witsml:cs_fluidRate" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Oil rates measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="gasVolume" type="witsml:cs_testVolume" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Gas volumes measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="gasRate" type="witsml:cs_fluidRate" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Gas rates measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="waterVolume" type="witsml:cs_testVolume" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Water volumes measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="waterRate" type="witsml:cs_fluidRate" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Water rates measured during the well test.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="gasOilRatio" type="witsml:volumePerVolumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The ratio of the volume of gas and the volume of oil that was produced.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="condensateYield" type="witsml:volumePerVolumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>This is the condensate yeld, which describes the amount of condensate per unit of natural gas produced</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="basicSedimentAndWater" type="witsml:volumePerVolumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>This is the measured of impurities present in crude oil as it comes from the well. BSandW content is commonly used as a measure for treating performance of hydrocarbon liquids</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="oilPotential" type="witsml:volumeFlowRateMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>This is the the potential of the well to produce crude oil. This represents the flow rate that could be achieved under maximum drawdown.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="gasPotential" type="witsml:volumeFlowRateMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>This is the potential of the well to produce natural gas. This represents the flow rate that could be achieved under maximum drawdown.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="sandVolume" type="witsml:volumeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>the volume of sand that was produced.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:complexType>
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 </xsd:schema>