An example of a customised DLIS, LAS and WITSML file export
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Integrating E&P technical data often requires a tailored solution that simply is not available off-the-shelf. However, building a custom solution can be a costly and risky undertaking that can end in failure. This presentation, which includes links to the online demo version, shows an example of how we recently delivered a comprehensive LAS, WITSML and DLIS file export from our client’s new PPDM-based software product in around three months, on time and to budget.
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An example of a customised DLIS, LAS and WITSML file export
- 1. www.etlsolutions.com An example of a customised DLIS, LAS and WITSML file export
- 2. • Simple data loaders • Excel data into PPDM • LAS files into PPDM Data movement scenarios • In-house or purchased E&P application • Add import/export capability • Application vendor • Need to load customer’s existing data • Continuous data integration • Make data available across the business • To all relevant applications wherever stored In this presentation we will focus on data export www.etlsolutions.com
- 3. Example: Global oilfield services company The client required a LAS, WITSML and DLIS file export DLIS LAS 2.0 PPDM Well Log Data www.etlsolutions.com
- 4. • Well log data was fed continuously into the client’s PPDM Oracle database • The client wanted to add an export capability via a user menu: • Hand-coding was dismissed as an option because it is hard to maintain • Server tools (e.g. Oracle Data Integrator) had a lack of fit with the existing architecture • Instead, we created a bespoke solution… The client’s existing system Well log data Data feed PPDM JDBC Applications Security Java applet Messages Web services Export LAS, DLIS or WITSML file JEE Application ServerClient www.etlsolutions.com
- 5. Solution overview 1. Design and implementation of mapping rules 2. Deployment Design • Domain experts • Documented in Excel Fit with existing architecture • JEE 5 – JMS, Web Services • Servlets/EJBs/MDBs • Oracle 11g Database • Custom services, eg Security Implementation • Runtime Fit in with current development choices and practices Offsite testing We split the solution into two aspects: www.etlsolutions.com
- 6. An example of the output LAS 2.0 file extract: www.etlsolutions.com
- 7. We defined the high level mapping, in this case from PPDM to LAS: An example of the high level mapping PPDM LAS 2.0 www.etlsolutions.com
- 8. An example of the lower level mapping Section ~Well Information Block Structured Mnemonic Unit Value Description COMP WELL.BUSINESS_ASSOCIATE.BA_NAME Company WELL WELL.WELL_NAME Well FLD WELL.FIELD.FIELD_NAME Field Excel was used to define the lower level mappings. This is a LAS 2.0 mapping extract: www.etlsolutions.com
- 9. The implementation gap Tends to be a one-way translation – mixes SQL with low-level conditional logic Text output and exceptions • This example code (not the code actually used in this project) highlights the issues • It can be difficult for the domain expert and the developer to communicate via this code www.etlsolutions.com
- 10. Closing the implementation gap Section ~Well Information Block Structured Mnemonic Unit Value Description COMP WELL.BUSINESS_ASSOCIATE.BA_NAME Company WELL WELL.WELL_NAME Well FLD WELL.FIELD.FIELD_NAME Field Our Transformation Manager software places all relevant terminology into the mapping system, improving communication and reducing risk:
- 11. Creating executable code 010101 Jar executable Transformation Manager creates a Java jar file, which then fits into the client’s environment www.etlsolutions.com
- 12. Web services App server Integrationlayer PPDM Client Query Read Services •Security •UoM •… Integration and deployment CoreTestrig PPDM • A core mapping piece of code was run automatically via a test rig • An integration layer and test client were also developed • All the client had to do was to plug in a few configurations e.g. units of measure www.etlsolutions.com
- 13. View the 30-minute on-demand demo for more information and a real-time demonstration by Richard Cook, our E&P specialist: http://www.etlsolutions.com/ep-data-management-demo/ Read our free white paper on PPDM data integration: http://www.etlsolutions.com/wp- content/uploads/2012/07/Whitepaper-on-PPDM-Data- Integration-Sept12.pdf Free resources
Editor's Notes
- The export isn’t standalone, it’s an addition to an established system with many other applications. There are several companies involved and they have a way of working.The client UI code is developed by one team, required application server side services will be provided by another. The PPDM database contains the data to export.
- For us there are 2 aspects to the solution: mapping rules, which specify at a domain expert level how the fields etc in the source PPDM database are written to the export file formats.We did this in Excel mapping at the table and field level, using terms in the source familiar to PPDM relational model domain experts, and target terms familiar to the clients DLIS, LAS and WITSML domain experts.Somehow these definitions need to be imlpemented such that they can execute on the target system.Deployment is the provision of web services, JMS messaging and enterprise application to support the export functionality.Much of the system exists, there are 3 teams working together, they have their way of doing things. There are already Java, WebLogic application server developmehnt and admin expertise (admin ongoing), Oracle experts and client UI experts. We need to minimise the impact of the export module – minimise additional costs, installation and ongoing admin requirements.