POSC XML Related Projects

This project, sponsored by POSC, Oilware and INT, is focused on creating an XML DTD for exchanging well log data. Version 1.0 of that DTD has been published by POSC. The sponsors envision that the WellLogML specification will replace the popular LAS format as the preferred means of exchanging well log data in the Industry.

The objective of this project is to specify an XML-based markup language for definitions of graphic presentations of Well Log data. A schema specification using the XML Schema standard has been published. Most of the common well log graphic objects are supported in this initial release, including track, index, channel, trace, pip, and fill area.

Technology continues to transform the way we distribute well logs. Compared to the traditional ways of dispatching tapes and faxes, we are now accustomed to sending emails with reports and attachments. Ongoing initiatives such as XML provide the means to combine the delivery of well data and plot information into a single, seamless process. Last year saw the emergence of two XML standards:

• WellLogML, specifying how the curve data should be structured
• LogGraphicsML, specifying how curve data should be displayed on the plot

WellPlotML aims to establish the way users can collaborate over the Web (Internet and/or Intranet) using these and other evolving standards.

POSC is working with the MMS to help them establish the means for electronic submission of regulatory information. We are currently conducting a pilot test of our ideas with the MMS. The project is incorporating various XML technologies to accomplish its objectives.

POSC is also working with the BLM to help them investigate XML for electronic submission of regulatory data. This project shows how three common regulatory reports can be defined, captured and presented in XML.

This is a project to develop an XML DTD for use in reporting well tests, monthly and annual production and performance forecasts to regulatory agencies. We have constructed a preliminary DTD for reporting on wells, reservoirs by well, fields, leases/licenses and facilities. Another goal of this project is to investigate the possibility to create and maintain a customized DTD as the source specification evolves.

The description of well schematics in XML is the subject of this proposed project. The scope is the entire well, including the wellhead and multiple wellbores, boreholes, casing and tubing strings, surface and downhole equipment, perforations and open hole intervals, survey points and workover (intervention) intervals.

The description of geophysical acquisition and processing objects (e.g., source events, stations, receivers, bin nodes) and data sets which reference them is the subject of this proposed project. Both seismic and potential field data are included.

This is a project to rapidly develop an XML specification for equation of state (EOS) data for compositional fluid modeling. The initial project will develop an initial working draft for a possible standard.

POSC is proposing to develop a reference data service accessible over the Internet. The proposed service relies on XML technology as the basis for storing the reference values.

The RP66 formulation of POSC Exchange Files has been too heavy for general use. The PEF XML proposal maps Epicentre (or any data model, for that matter) into an XML file in a simple, consistent manner. The July 20, 2001 paper is a formal recommendation for this XML file.

Use of XML Schema to develop various XML files has led to the development of "XML Objects." These are complex data types, structures, and patterns that can be incorporated into larger XML Schemas. The advantage in these objects is that they will be consistent over many different XML applications.