Stop Thinking, Just Do!

PRODML DATA SCHEMA AND API SPECIFICATIONS

PRODML Overview

The following specifications are the latest versions and are recommended for new or upgraded implementations.

NEW COMPLETION DATA-OBJECT

This new data-object is compatible with WITSML v1.4.1.1 and PRODML v1.2.2. Details found here.</p>

DEFINITIONS

Following are brief descriptions of these specifications.

Data schema: XML schemas for production-oriented data objects.

• The productFlowModel data-object can be used to capture a directed graph of flow connections in a network.
• The productVolume data-object can capture time-varying properties within the context of a flow network. Detailed knowledge of the network is not required.
• The productionOperation data-object can capture the activities related to production operations for a stated period (day, month, arbitrary, …).
• The timeSeriesData data-object can capture a historian view of how data varies with time.
• The timeSeriesStatistic data-object can capture derived statistics about timeSeriesData within a time interval.
• The fluidSample, fluidAnalysis and fluidAnalysisResult data-objects can capture information about a fluid sample and its related lab tests.
• The dtsInstalledSystem and dtsMeasurement data-objects can capture information related to a distributed temperature survey (DTS) in a wellbore.
• The wellTest data-object can capture the results of a well test.
• The wftRun data-object can capture information from one run of a wireline formation test (WFT).

Generic Data Access (DGA) service interface: A web service interface specification for accessing a persistent data store. It supports get, put and delete.

Generic Data Processor (GDP) service interface: A web service interface specification for passing data to a server in order to apply a server-specific function to that same data. The data returned from the server will represent some variation of the data initially passed by the client to the server.

PRODML Identifier: A specification for how to create a PRODML-formatted string that incorporates a hierarchy of facility identifiers. This format is specified to be used in some of the service interfaces and data-schemas.

CHANGES FROM PREVIOUS VERSIONS

Changes in PRODML v2.1 Services

• Added new PRODML_Business_Overview.pdf file.
• Split previous PRODML API document into individual documents for each service interface/WSDL.
  • PRODML_GDA_Service_Specification_V2.1.pdf
    § DeleteData operation added. § Replaced pseudo-code descriptions with UML diagrams. § Revamped error handling to specify the use of SOAP faults instead of return codes. § Enhanced descriptions of parameters.

  • PRODML_GDP_Service_Specification_V2.1.pdf
    § Replaced pseudo-code descriptions with UML diagrams.
    § Revamped error handling to specify the use of SOAP faults instead of return codes.
    § Enhanced descriptions of parameters.
    § Enhanced capabilities object.

  • PRODML_Identifiers_V2.1.pdf § Centralized the documentation of PRODML IDs for use in GDA, GDP, SAM and productVolume data-schema. § Clarified the format. § Changed the format to allow the type to be specified without an ID (e.g., well known points such as bottomhole do not need an ID). § Added support for a Relative PRODML ID.
  • The SAM specification was also split out but is not included in this release.

Changes in PRODML v1.2.1 data-schemas (all backward compatible).

• Added wftRun data-schema for “Wireline Formation Tests”.
• Added elements for “Productivity Index”.
• Added support for internal facility parameters using a “Relative PRODML Identifier”.

References

[1] The Energy Standards Resource Centre, PRODML DATA SCHEMA AND API SPECIFICATIONS, 2014.