-<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_location.xsd"/>
 <xsd:include schemaLocation="cs_referencePoint.xsd"/>
 <xsd:include schemaLocation="cs_wellCRS.xsd"/>
 <xsd:include schemaLocation="cs_wellDatum.xsd"/>
<!--
 -->
-<xsd:group name="grp_well">
-<xsd:annotation>
 <xsd:documentation>The non-contextual content of a WITSML Well object.</xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="nameLegal" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Legal name of the well. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="numLicense" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>License number of the well. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="numGovt" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Government assigned well number. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimLicense" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time license was issued. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="field" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Name of the field in which the well is located. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="country" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Country in which well is located. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="state" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>State or province in which well is located. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="county" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>County in which the well is located. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="region" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Geo-political region. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="district" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Geo-political district name. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="block" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Block name in which well is located. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="timeZone" type="witsml:timeZone" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The time zone in which well is located. It is the deviation in hours and minutes from UTC. This should be the normal time zone at the well and not a seasonally adjusted value such as daylight savings time. While the time zone is optional in a date time value, it is strongly advised that the zone always be specified in each date time value. The time zone in a date time value may use seasonally adjusted values.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="operator" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Operator company name. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="operatorDiv" type="witsml:nameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Division of operator company. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="pcInterest" type="witsml:dimensionlessMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Interest for Operator. Commonly in percent. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="numAPI" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>American Petroleum Institute well number. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="statusWell" type="witsml:WellStatus" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>POSC Well status. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="purposeWell" type="witsml:WellPurpose" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>POSC well purpose. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="fluidWell" type="witsml:WellFluid" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>POSC well fluid. The type of fluid being produced from or injected into a well facility. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="directionWell" type="witsml:WellDirection" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>POSC well direction. The direction of flow of the fluids in a well facility (generally, injected or produced, or some combination). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimSpud" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time at which well was spudded. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimPa" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time at which well was plugged and abandoned. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="wellheadElevation" type="witsml:wellElevationCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Elevation of wellhead relative to a wellDatum. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="wellDatum" type="witsml:cs_wellDatum" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>A datum to which elevations and depths are referenced. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="groundElevation" type="witsml:wellElevationCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Elevation of ground level (land rigs). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="waterDepth" type="witsml:wellVerticalDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Depth of water (not land rigs). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="wellLocation" type="witsml:cs_location" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>the 2D coordinates of the well surface point in one coordinate reference system. This is where the well crosses ground level on land and crosses the platform offshore. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="referencePoint" type="witsml:cs_referencePoint" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>Defines a reference point within the context of the well. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="wellCRS" type="witsml:cs_wellCRS" minOccurs="0" maxOccurs="unbounded">
-<xsd:annotation>
 <xsd:documentation>A coordinate reference system that was used within the context of this well. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
 </xsd:group>
 </xsd:schema>