cs_perforation.xsd
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<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema
elementFormDefault="qualified"
attributeFormDefault="unqualified"
targetNamespace="http://www.witsml.org/schemas/131/addendum/combo"
xmlns:witsml="http://www.witsml.org/schemas/131/addendum/combo"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
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="typ_catalog_interval.xsd"/>
<!-- -->
<xsd:complexType name="cs_perforation">
<xsd:sequence>
<xsd:element name="type" type="witsml:PerforationType" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The type of mechanism used to create the perforations.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotCount" type="witsml:positiveCount" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The total number of perforations in the interval.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotDensity" type="witsml:perLengthMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The shot density of the perforated interval in
number of perforations per length.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotDiameter" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The diameter of the perforation entrance holes.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotLength" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The average length of the perforations measured
from the casing to the end of the perforation.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotAngle" type="witsml:planeAngleMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The angular range of perforations created by a
perforating gun set up for directional shooting,
expressed clockwise from north. If perforations
are from due north to due east, the angle is 90
degrees.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="shotPhase" type="witsml:planeAngleMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The angle between perforations with respect to
the centerline of the wellbore. Examples are 120
deg. for perforations oriented at 0, 120 and 240
deg., and 180 deg. for perforations oriented at
opposite sides of the wellbore.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="crushZoneDiameter" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The assumed diameter of the crushed zone in each
perforation in the interval.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="crushDamageRatio" type="witsml:unitlessQuantity" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The ratio of the crush zone permeability to the
damaged zone permeability around the perforations.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="gunSize" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The length of the gun.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="gunType" type="witsml:kindString" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The type of gun used to create the perforation.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="chargeSize" type="witsml:massMeasure" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The size of the explosive charge.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="chargeType" type="witsml:kindString" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>The type of explosive charge.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="formationName" type="witsml:nameString" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>Name of formation penetrated.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="lithostratigraphicName" type="witsml:nameString" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>Name of formation, regionally dependent.</xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
<!-- -->
</xsd:schema>