LAS To WITSMLConversion Utility

Presented at POSC Regional SIG meeting Stavanger, 13 -14 June 2006

byPOSC

&Satyam Computer Services Ltd

Agenda

• Project Objectives

• Problem Definition

• The Solution and Solution Architecture

• Technical Features & Limitations

• Demonstration

• Current Status & Future

• Contacts

Project Objectives

• To produce a tool to convert LAS log data to WITSMLTM with interactive and batch interfaces

• To stimulate an Open Source development community around the WITSML initiative– Seed funding provided by BP– OS Community to be managed by WITSML

and other POSC SIGs

LAS To WITSML - Problem Definition

To develop a utility:• For use by operators, contractors, and other

organizations; • For use by log analysts, petrophysicists and

data managers. • To convert existing log data from CWLS

LAS 2.0 and 3 formats into WITSML™ wellLog data representation

Problem Definition Contd..

• Use batch, scripted, and/or interactive user interface

• Address depth-based and time-based LAS structures

• The solution must be capable of running in a Windows XP operating system. Platform independent solutions are welcome.

Problem Definition Contd..

• Should support identifying and confirming selected input data and saving output data under user-defined names in user-determined locations.

• The technology must generate WITSML log and wellLog object instances as well as other WITSML object instances needed to fully map the source data.

Problem Definition Contd..

• The technology must be able to render the output data in a compatible LAS form using an XML style sheet.

• The technology must include samples of valid input data to verify correct operation and that data must pass the CWLS LAS validation process.

The Solution – Features Provided

• GUI based application– can handle single / multiple files for conversion.

• Easy–to–use. Very intuitive design to assist novice users

• Handles both Time based and Depth based LAS2.0 files.

• Developed and fully functional on Windows 2000 and Windows XP Operating systems.

• Uses Java technology that facilitates porting to other operating systems with much less effort.

The Solution – Features Provided Contd..

• Offers flexibility to the user in choosing various optional data that needs to be converted / excluded from conversion.

• Generates WITSML Log and WellLog objects and other objects as required based on input data.

• Output is in the form of XML files that can be rendered in any desired form using the style sheets.

• Provision to the users to modify the mapping scheme between LAS and WITSML elements.

• Batch processing facility to process multiple files

Solution Architecture

Technical Features & Limitations

The application• Is fully functional on Windows 2000 / Windows

XP• Uses JRE 1.4.2_10• Desktop client application• Flexibility to modify default mapping• Open source standardsLimitations• At present handles only LAS 2.0 format

Demo of the Application

Demonstration

Current Status and Future

• Current Status:– Application has been submitted to POSC for

acceptance testing

• Future Scope of work:– Enhancements based on feedback from POSC

& Industry

• We solicit the industry to provide feedback on the same so that the utility can be made more useful for the industry.

Contacts

Satyam USA Contacts• Prakash & Sulaksh (Mail ids and Contact Info to

be added)• Praveen Hubli

Satyam India Contacts• Dr. Nagabhushanam (+91-40-55232323 x2229)

(Nagabhushanam_G@satyam.com)

• Nageswara Rao M (+91-40-55232323 x2261)(Nageswararao_Marellapudi@satyam.com)

Thank You