-<xsd:schema elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.witsml.org/schemas/1series" version="1.4.1.1">

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-<!--

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	This file is distributed under the Energistics License Agreement at
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	Use of this file constitutes agreement with the Energistics License Agreement.
	Copyright (c) 2012 Energistics. All rights reserved.
	Energistics, WITSML, PRODML and RESQML are trademarks or registered trademarks of Energistics.

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<xsd:include schemaLocation="cs_extensionNameValue.xsd"/>

<xsd:include schemaLocation="attgrp_uid.xsd"/>

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-<xsd:complexType name="cs_stimReservoirInterval">

-<xsd:annotation>

<xsd:documentation>Reservoir Interval Component Schema.</xsd:documentation>

<xsd:appinfo>Modified-in-version=1.4.1, By-issue=W-CR-010, Change=Added</xsd:appinfo>

</xsd:annotation>

-<xsd:sequence>

-<xsd:element name="mdLithTop" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Measured depth at top of interval.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="mdLithBottom" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Measured depth at base of interval.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithFormationPermeability" type="witsml:permeabilityRockMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Formation permeability, a measurement of the ability of a fluid to flow through a rock. Commonly measured in milliDarcys (1m2 = 0.000000000000986923 Darcy).</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithYoungsModulus" type="witsml:pressureMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Young's modulus (E) is a measure of the stiffness of an isotropic elastic material. It is also known as the Young modulus, modulus of elasticity, elastic modulus (though Young's modulus is actually one of several elastic moduli such as the bulk modulus and the shear modulus) or tensile modulus. It is defined as the ratio of the uniaxial stress over the uniaxial strain.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithPorePres" type="witsml:pressureMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Refers to the pressure of fluids held within a soil or rock, in gaps between particles formation porosity.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithNetPayThickness" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Net pay is computed. It is the thickness of rock that can deliver hydrocarbons to the wellbore formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithName" type="witsml:nameString" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>A name for the formation lithology.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="mdGrossPayTop" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Measured depth of the top of the formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="mdGrossPayBottom" type="witsml:measuredDepthCoord" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Measured depth of the bottom of the formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="grossPayThickness" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The total thickness of the interval being treated, whether or not it is productive.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayThickness" type="witsml:lengthMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The thickness of the most productive part of the interval. Net pay is a subset of the gross.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayPorePres" type="witsml:pressureMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The pore pressure of the net pay.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayFluidCompressibility" type="witsml:compressibilityMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The volume change of the fluid in the net pay when pressure is applied.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayFluidViscosity" type="witsml:dynamicViscosityMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>With respect to the net pay, a measurement of the internal resistance of a fluid to flow against itself. Expressed as the ratio of shear stress to shear rate.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayName" type="witsml:nameString" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The name used for the net pay zone.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayFormationPermeability" type="witsml:permeabilityRockMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The permeability of the net pay.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="lithPoissonsRatio" type="witsml:dimensionlessMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>The ratio of the relative contraction strain, or transverse strain (normal to the applied load), divided by the relative extension strain, or axial strain (in the direction of the applied load).</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="netPayFormationPorosity" type="witsml:volumePerVolumeMeasurePercent" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Porosity of the net pay formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="formationPermeability" type="witsml:permeabilityRockMeasure" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Permeability of the formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="formationPorosity" type="witsml:volumePerVolumeMeasurePercent" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Porosity of the formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="nameFormation" type="witsml:nameString" minOccurs="0" maxOccurs="1">

-<xsd:annotation>

<xsd:documentation>Name of the formation.</xsd:documentation>

</xsd:annotation>

</xsd:element>

-<xsd:element name="extensionNameValue" type="witsml:cs_extensionNameValue" minOccurs="0" maxOccurs="unbounded">

-<xsd:annotation>

<xsd:documentation>Extensions to the schema based on a name-value construct.</xsd:documentation>

</xsd:annotation>

</xsd:element>

</xsd:sequence>

-<xsd:attributeGroup ref="witsml:attgrp_uid">

-<xsd:annotation>

<xsd:documentation>Unique identifier that has been assigned to the (XML) node.</xsd:documentation>

</xsd:annotation>

</xsd:attributeGroup>

</xsd:complexType>

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</xsd:schema>