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Data Exchange Models

Titlesort ascending Description
Well Tests

This template defines the content model for a service that delivers well stem test data collected during development of Oil and Gas wells. Normal drilling procedures control formation pressures and fluids through the use of a hydrostatic head. Well testing brings these formation pressures and fluids to the surface. Data collected during the test procedure will be provided through the well test feature service. Types of tests include Production, G10, Drill Stem, Drawdown, Buildup, and other well test types.

Well Log Observation

This workbook describes a content model for well log observation features. These will be point features that locate the well origin for a well bore from which a well log is available. The well log observation record describes the log (type, top and bottom of logged interval) and provides links to representations of the actual log data, which typically will be either a paper copy, scanned image, or LAS file. In some cases the log may be represented in an Excel Spreadsheet. The content model includes basic information describing the well and well bore from which the log was obtained for use in search and filtering to discover logs of interest. Each row in the WellLogObservationContent sheet in this workbook will correspond to an individual log from a borehole; thus there may be multiple rows per well. For logs that are scanned or digitized and available as online resources, Scanned File URLs will be provided. The WellBoreURI for the logged well bore is the cross-referencing link (foreign key) used to associate the header record, well log records, temperature measurements, and other information from a particular borehole.

Well Header Observation

A well is a facility defined by its function to extract fluids from within the earth. A well may be a simple hole in the ground (generally not the kind of wells we're interested in here...), but in general will consist of a dug shaft or drilled borehole. Drilled wells may include one or more boreholes (well bores) that are accessed from the surface at an origin collar, which defines the origin of the well. Individual boreholes in the well my have origin points (collars) that are located within existing boreholes in the well (e.g. sidetracks). The most common situation, especially for water wells, is a well consisting of a single borehole with a collar that is coincident with the well origin.

Well header features represent individual wells, and are the anchor for a variety of observations and other features.

Well Fluid Production

This workbook documents a content model for exchange of information about fluid production for a given well. A generic model is intended to allow for a variety of flows from a well including oil, gas, and water as well as steam production. Because of the wide variety of possible flow measurements (commodities, aggregation type), the model adopts a thin approach, which may result in many records being returned for a single well. Thus most data about the well is linked through the HeaderURI instead of included inline to keep the redundant data volume down.

This template defines the content model for a service that delivers well fluid production observations. Many of these will be a standard map location and production volume, but other information may be delivered. The well fluid production content model is designed to be used for data compilation from publications, reports, and databases. This content model is intended to present key information necessary to query a well fluid production observation service and to evaluate the reported data.

Volcanic Vents

This spreadsheet indicates the content requested for features representing active volcanic vent data. This simple content model is intended to identify recently active volcanic vents that may indicate areas of active hydro-thermal systems. Detailed geophysical or geodetic information related to active magma movement and prediction of eruptive activity are out of scope.

Thermal/Hot Spring Feature

This spreadsheet indicates the content requested for basic data characterizing a hot spring feature for the AASG geothermal data project. Typically, water temperatures are recorded with other information such as water quality or chemical analysis from a particular spring. The temperature and flow rate reported here are meant to be generalized characterization. Other observation services should be used to report time series of temperature or flow measurements. Chemical analytical data is also reported by a separate observation service. This sheet may be used to compile multiple temperature or flow rate observations for individual springs as well.

Thermal Conductivity Observation

This spreadsheet indicates the content requested for features representing thermal conductivity observations. Design is focused on thermal conductivity measurements/observations portrayed as geospatial points with an associated depth, TC value, headerURI, construction information, and related resources. Thermal Conductivity data for the geothermal data system is intended as a tool to identify areas that may be favorable for geothermal[EP1] energy production. Each record should contain measurement values, location, measurement type, and citations for the data.

Seismic Event Hypocenter

This spreadsheet indicates the content requested for features representing Seismic event hypocenter observations. Design is focused on hypocenters portrayed as points with an associated depth. Hypocenter data for geothermal data system is intended as a tool to identify seismically active areas that are often associated with hydrothermal activity, thus the content model does not include detailed information that would be important for seismological analysis; such information should be accessed by including related resource links. As such data should be restricted to records for known or suspected seismic events.

Rock Chemistry

This is a data interchange content model for an observation of the chemical composition of whole rock samples, including trace elements, gases, and isotopes. SamplingFeatureURI gives a unique identifier describing the geologic unit/formation described by the record, while ParentSampleURI indicates the unique identifier for the parent of the sample used in the analysis. Several 'suites' of analytes representing common analysis results are defined, with the intention that an implementation of the content model would offer several observation feature types, each of which consists of the header fields combined with the analytes for a suite. A content type for reporting results for a single analyte is also proposed, with an abbreviated header. In this approach a single analysis result is delivered as a collection of observation records, each with the same AnalysisURI and reporting single analyte. Suites were developed to match those in the EarthChem deployed services.

Radiogenic Heat Production

This workbook documents a content model for interchange documents with data from measurements of Radiogenic Heat Production based on analysis of individual rock samples. Calculation of heat production is based on measured U, Th, and K content, which may derive from chemical analysis, gamma ray spectral analysis or other techniques. Measurement procedures, including instruments used, standards used to calibrate calculation of U, Th, and K, assumptions in calculation of heat production from radiogenic element concentrations, etc. should be carefully described in the Measurement procedure field.

Power Plant Production

This workbook documents a content model for reporting electrical power production. In the context of NGDS, these will normally be geothermal power plants, but the content model is not unique to a single power plant type.

Powell Cummings Geothermometry

Specific liquid and gas analyte suites in this workbook have been tailored for use in the analysis formulated by Powell and Cummings, 2010. Analytes reported with this content model match those in the Powell and Cummings, 2010 spreadsheets and can be directly inputted into their model, which creates numerous ternary diagrams and other Excel graphics to create a geothermomerty report. Citation: Powell, Tom and Cumming, William 2010. Spreadsheets for Geothermal Water and Gas Geochemistry. Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010. SGP-TR-188. Access the paper and spreadsheets (to generate report) here: http://repository.stategeothermaldata.org/repository/resource/9e15e1a59b....

Powell and Cumming Geothermometry

Specific liquid and gas analyte suites in this workbook have been tailored for use in the analysis formulated by Powell and Cumming, 2010. Analytes reported with this content model match those in the Powell and Cummings, 2010 spreadsheets and can be directly inputted into their model, which creates numerous ternary diagrams and other Excel graphics to create a geothermomerty report. Citation: Powell, Tom and Cumming, William 2010. Spreadsheets for Geothermal Water and Gas Geochemistry. Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010. SGP-TR-188. Access the paper and spreadsheets (to generate report) here: http://repository.stategeothermaldata.org/repository/resource/9e15e1a59b....

Physical Sample

This workbook documents a content model for basic data characterizing a physical sample. The content model is based on consideration of content requested for SESAR, EarthTime, GeoSciML, Storet, ISO19115. Focus is on terrestrial (land based) samples. Content model includes sufficient information for SESAR registration (see http://www.geosamples.org/), but is not complete with all possible content in the SESAR sample data model.

Hydraulic Properties

This information exchange is an aid for compiling data for delivery as hydraulic property observations for the National Geothermal Data System. The HydraulicPropertyObservation worksheet specifies content elements for an interchange format for data obtained from boreholes. Fields in that spreadsheet will become XML elements in interchange documents for WFS simple features/geothermal data web services. Typically hydraulic properties are collected during pump testing and/or laboratory analysis, and this information will be provided through a hydraulic property observation service. The HeaderURI for a particular borehole (well for simple wells) is the cross-referencing link (foreign key) used to associate the header record, well logs, temperature measurements, and other information from a particular borehole.

Heat Pump Facility

This spreadsheet indicates the content requested for features representing heat pump facility locations. Design is focused on sites/facilities portrayed as geospatial points with associated facility type, use application, and operational date. Heat Pump facility data for the geothermal data system is intended as a tool to identify information related to facility construction and location, thus the content model may not include detailed information. Such information should be accessed by including related resource links. As such, data is intended to be restricted to records for existing heat pump facilities.

Heat Flow

This spreadsheet indicates the content requested for observation features representing Heat Flow measurements. The content model is based on specifications gathered from the SMU Heat Flow database, and has been extended to include the specifics of Heat Flow data from other parties.

Minimal required features include Observation URI, Well Name, Header URI, Label, County, State, Latitude and Longitude Degrees, Source, Driller Depth, Interval, Thermal Conductivity, Gradient, Heat Flow, and Heat Flow Method.

Gravity Stations

This information exchange defines data model for observations of the acceleration of gravity. Fields in the content model will become XML elements in interchange documents for WFS simple feature in the USGIN system.

Geothermal Power Plant Facility

This information exchange indicates content requested for features representing Geothermal Power Plant locations. Design is focused on power plants portrayed as geospatial points with an associated plant type, capacity in megawatts, and use application. Power plant data for the geothermal data system is intended as a tool to identify sites with existing power plants. Thus, the content model may not include detailed information that would be important for determining geothermal potential; such information should be accessed by including related resource links. As such, data should be restricted to records for existing facilities.

Geothermal Metadata Compilation

This template is for use in compiling metadata content in a structured tabular format that can be automatically transformed into any of several metadata encoding and content schemes. The content is based on the USGIN Recommended Metadata Model The goal of this template is to make metadata creation easier while still complying to metadata requirements for the:

National Geothermal Data System (NGDS) project

OGC Catalog Service for the Web (CSW) protocol

ISO 19139 (international geospatial metadata) standard

FGDC CSDGM (federal geospatial metadata) standard

See also:

USGIN content recommendations for geoscience information resources.

USGIN full ISO 19139 metadata profile (ISO 19115 and ISO 19119).

Geothermal Fluid Production (deprecated)

**PLEASE NOTE:**

This content model has been superseded by Well Fluid Production content model. Please use that or the Fluid Flux Injection Disposal content models for future fluid production data.

This workbook documents a content model for exchange of information about fluid fluxes into or out of a geothermal well. A generic model is intended to allow for oil, gas, or water fluid transfer. Oil and gas facilities may include off-shore platforms, whereas water facilities may include geothermal power plants. Because of the wide variety of possible flow measurements (commodities, aggregation type), the model adopts a thin approach, which may result in many records being returned for a single well. Thus most data about the well is linked through the HeaderURI instead of included inline to keep the redundant data volume down.

Geothermal Area

This package contains both an Excel spreadsheet and an accompanying personal geodatabase (PGD) for data delivery of a Geothermal Area dataset (polygons). Design is focused on providing characteristics of sites identified as having geothermal potential. Geothermal area content for the state geothermal data system is intended as a tool to identify areas that may be associated with geothermal resource potential. Thus, the content model does not include specific measurements/data collection information that would be important for analysis; such information should be accessed by querying other related data sets in the area of interest such as borehole temperature observation services, thermal conductivity services, and published reports.

The deliverable is the personal geodatabase containing the geometry information.

Geologic Units

The GeologicUnitView Feature tab of this workbook indicates the content for Geologic Unit features. The entirety of the workbook is an information exchange workbook for GeoSciML-Portrayal, in which three features for WFS implementation are described (see alsohttp://schemas.usgin.org/models/#geosciml-portrayal-contacts and http://schemas.usgin.org/models/#geosciml-portrayal-faults). The model is based on the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/bin/view/CGIModel/GeoSciMLThematicView.... This schema is a view of GeoSciML data that denormalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features. The geologic unit feature content also conforms closely to the content in the USGS-AASG NCGMP09 database design for a description of map units. These features are essentially geographically located descriptions of outcrop to map scale units of rock--including lithologic composition, age, internal structure (bedding, foliation etc.) and genesis. The content model might be associated with map units on a geologic map, individual polygons (on a map) or borehole intervals (in a stratigraphic log), or with point locations to describe outcrops in field data. For descriptions associated with maps or polygons (outcrop areas), location uncertainty properties are not included.

Geologic Reservoir

This information exchange documents information useful to characterize a subsurface reservoir for geothermal potential. The content model was created to provide a template for reservoir data gathered by the Texas BEG to be hosted by the NGDS. Provide a format that is clear and comprehesive so that it may be understood by fellow researchers in future studies. Also provide a standardized data template to allow for easy updating by multiple stakeholders and participants.

Geologic Fault Feature / Shear Displacement Structure

The ShearDisplacementStructure tab of this workbook indicates the content for Geologic Fault features. The entirety of the workbook is an information exchange workbook for GeoSciML-Portrayal, in which three features for WFS implementation are described (see alsohttp://schemas.usgin.org/models/#geosciml-portrayal-contacts and http://schemas.usgin.org/models/#geosciml-portrayal-units). The model is from the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/bin/view/CGIModel/GeoSciMLThematicView... . This schema is a view of GeoSciML data that denormalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative, values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features.

Geologic Contact Feature

The ContactFeature tab of this workbook indicates the content for Geologic Contact features. The entirety of the workbook is an information exchange workbook for GeoSciML-Portrayal, in which three features for WFS implementation are described (see alsohttp://schemas.usgin.org/models/#geosciml-portrayal-units and http://schemas.usgin.org/models/#geosciml-portrayal-faults). The model is based on the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/CGIModel/GeoSciMLPortrayalViewModel. This schema is a view of GeoSciML data that de-normalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels, will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features.

Fluid Flux Injection and Disposal

This workbook documents a content model for exchange of information about fluid fluxes into or out of a well. A generic model is intended to allow for oil, gas, or water injection (negative flow). The focus of this observation type is on injection (any fluid flowed into well) or disposal. Because of the wide variety of possible flow measurements (commodities, aggregation type), the model adopts a thin approach, which may result in many records being returned for a single well. Thus most data about the well is linked through the HeaderURI instead of included inline to keep the redundant data volume down.

Fault Feature / Shear Displacement Structure

This spreadsheet indicates the content for fault features. The model is from the IUGS CGI interoperability working group. See https://www.seegrid.csiro.au/wiki/bin/view/CGIModel/GeoSciMLThematicView... . This schema is a view of GeoSciML data that denormalizes the data and concatenates complex property values into single, human-readable, labels and returns single, representative, values from controlled vocabularies for multi-valued properties that can be used when generating thematic maps, or portrayals, of the data. It is separate to, but harmonized with, GeoSciML and conforms to the level 0 of the Simple Features Profile for GML (link). Labels will be 'free-text' fields that will be, in robust services, well-structured summaries of complex GeoSciML data, while the representative thematic properties will be URIs of concepts in a controlled vocabulary. There may also be links, via identifier URIs, to full GeoSciML representations of the geologic features.

Drill Stem Test Observations (deprecated)

THIS CONTENT MODEL HAS BEEN SUPERSEDED. PLEASE USE THE WELL TESTS CONTENT MODEL. This spreadsheet defines the schema used for the interchange of drill stem test observation results by the AASG geothermal data project for the National Geothermal Data System. The HeaderURI for a particular borehole (well for simple wells) is the cross-referencing link (foreign key) used to associate the header record, well logs, temperature measurements, and other information from a particular borehole. At minimum the data will report Observation URI, Well Header URI, Well Name, API No, DST Name, DST Operator, Lat Degree, Long Degree, SRS, DST Target Formation, Depth Top Open Zone, Depth Bottom Open Zone, Pressure Initial Shut In, Pressure Final Shut in, Hydrostatic Pressure, Source, and Information Source.

Direct Use Feature

Direct use features describe facilities that utilize geothermal energy directly without transformation to electricity. See the NREL Geothermal Direct Use web page for more information. The template here is based on the Direct Use Site spreadsheet provided by the GeoHeat center at the Oregon Institute of Technology.

Contour Lines

This information exchange specifies content elements for an interchange format for linear spatial features representing contour (isoline) data. These lines connect locations registering the same value for some variable. Examples include structure contour maps that represent lines of constant elevation on some surface, or gravity anomaly contours that represent lines of constant anomaly value. Fields in the content model will become XML elements in interchange documents for WFS simple features served by geothermal data web services.

Borehole Temperature Observation

This is a data interchange content model for a subsurface temperature measurement made in a borehole. Header content that characterizes the borehole sampling feature is included with each observation to assist users finding measurements based on location, depth, particular borehole, etc. This information will be provided through a borehole temperature observation service. The HeaderURI for a particular borehole (well for simple wells) is the cross-referencing link (foreign key) used to associate the header record, well logs, temperature measurements, and other information from a particular borehole.

Borehole Lithology Interval Feature

This is a content model for features representing of lithology log intervals associated with a borehole. Each interval has a top and a bottom, measured from the ground surface (convention for interoperability). Each interval has a geologic unit description that will be identical with the content associated with polygons on a geologic map.

Borehole Lithology Intercepts

This workbook contains the BoreholeLithIntercept content model that specifies content elements for an interchange format for lithology log intercepts associated with a borehole. Fields in the BoreholeLithIntercept Content model will become XML elements in interchange documents for WFS simple features served by AASG-geothermal-data web services. Each intercept feature has a depth coordinate measured from the ground surface along the well bore (convention for interoperability) and a geologic unit specified that will be identical with the content associated with contacts on a geologic map. Other sheets in the workbook provide additional explanatory material and provide information on the origin of the dataset, its review and lineage.

Aqueous Chemistry

This is a data interchange content model for an observation of the chemical composition of an aqueous fluid. A header content model for sample characterization, location, and analysis metadata is included to assist users finding analyses for specific samples, locations, time intervals, etc. Typically water temperature at the time of sampling is recorded along with sample data. Several 'suites' of analytes representing common analysis results are defined, with the intention that an implementation of the content model would offer several observation feature types, each of which consists of the header fields combined with the analytes for a suite. A content type for reporting results for a single analyte is also proposed, with an abbreviated header; this could be implemented for services similar to the EPA storet data services. In this approach a single analysis result is delivered as a collection of observation records, each with the same AnalysisURI and reporting single analyte. AqueousChemicalAnalysis-BasicData contains fields for information used to discover and retrieve chemical analyses meeting various criteria, and to evaluate the reported results. These fields would be reported along with a collection of analytes from the different suites proposed on the suites table.

Active Fault/Quaternary Fault

Faults are typically represented on maps by the linear outcrop trace where the fault intersects the Earth Surface. Thus the feature service for fault uses a line feature class for the geometry. This linear geometry cannot simply be represented in a spreadsheet, so a template for service deployment provides as an ESRI personal geodatabase (which is a Microsoft Access .mdb file). In addition, for consistency with point-based content models, an Excel Workbook is provided with work sheets for the data provider metadata, description of fields in the template, and vocabularies recommended for use in interchange documents. For those that do not have software that will work with the geodatabase file, a zip archive containing a shape file feature class is included. The shape file truncates field names and text values that are strings longer than 255 characters. If some field contain text longer than 255 characters, fault descriptions should be loaded into the excel worksheet included with the shape file. In that case, be sure that there is a key to uniquely join the shape field information with the fault description information.

This content model includes data elements that are in the content model for Geologic Map/faults, as well as elements providing information specific to Quaternary faults relating to slip rates, time since most recent activity.

The AASG namespace URI for XML schema implementing this content model is http://stategeothermaldata.org/uri-gin/aasg/xmlschema/activefault/ . Version number is appended as the terminal token in individual schema version instances, e.g. for version 1.1 the URI is http://stategeothermaldata.org/uri-gin/aasg/xmlschema/activefault/1.1 .

Abandoned Mines

This information exchange is for delivery of abandoned underground mine features in the AASG geothermal data project. The AbandonedUndergroundMine (AUM) worksheet specifies content elements for an interchange format for location, area, volume, heat capacity, temperature and other measurement data obtained for AUMs. Fields in that spreadsheet will become XML elements in interchange documents for WFS simple features/geothermal data web services. Typically AUM data are recorded in state survey databases, and this information could be provided through an AUM observation service. The HeaderURI for a particular mine is the cross-referencing link (foreign key) used to associate the header record and other information from a particular AUM.

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