-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/131" version="1.3.1">
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<!--
 -->
 <xsd:include schemaLocation="attgrp_uid.xsd"/>
<!--
 -->
-<xsd:complexType name="cs_activity">
-<xsd:annotation>
 <xsd:documentation>WITSML - Operations Activity Component Schema </xsd:documentation>
 </xsd:annotation>
-<xsd:sequence>
-<xsd:element name="dTimStart" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time that activities started. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="dTimEnd" type="witsml:timestamp" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Date and time that activities were completed. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="duration" type="witsml:timeMeasure" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The activity duration (commonly in hours). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="phase" type="witsml:str16" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Phase (large activity classification) e.g. Drill Surface Hole. </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="typeActivityClass" type="witsml:ActivityClassType" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Classifier (Planned, Unplanned, Downtime). </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdHoleStart" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Measured Depth at start of activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="tvdHoleStart" type="witsml:wellVerticalDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>True Vertical Depth at start of activity </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdHoleEnd" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Measured Depth at end of activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="tvdHoleEnd" type="witsml:wellVerticalDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>True Vertical Depth at end of activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdBitStart" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Measured depth of bit at start of activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="mdBitEnd" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Measured depth of bit at end of activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="state" type="witsml:str32" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Finish, interrupted, failed, etc. </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="tubular" type="witsml:refNameString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>A pointer to the tubular related to this activity.</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="optimum" type="witsml:logicalBoolean" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Is the activity optimum. Values are "true" (or "1") and "false" (or "0").</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="productive" type="witsml:logicalBoolean" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Does activity bring closer to objective. Values are "true" (or "1") and "false" (or "0").</xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="itemState" type="witsml:ItemState" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>The item state for the data object. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
-<xsd:element name="comments" type="witsml:commentString" minOccurs="0" maxOccurs="1">
-<xsd:annotation>
 <xsd:documentation>Comments and Remarks. </xsd:documentation>
 </xsd:annotation>
 </xsd:element>
 </xsd:sequence>
-<xsd:attributeGroup ref="witsml:attgrp_uid">
-<xsd:annotation>
 <xsd:documentation>Unique identifier for the activity. </xsd:documentation>
 </xsd:annotation>
 </xsd:attributeGroup>
 </xsd:complexType>
 </xsd:schema>