The IADC drill bit dull grading system has held up quite well until now, however, with the introduction of large automated systems, machine learning, evolving drill bit products and the requirement for more detailed data per run there is a need to improve the system.
The current IADC PDC drill bit dull grading codes were created in 1987 and revised in 1992 along with the roller cone codes. The IADC codes are a compact, text-based way to describe the bit condition, containing limited categorization and quantification information.
However, the IADC codes have some known limitations:
- The code set is focused on justification for pulling the bit, reusability, and wear; but does not capture details needed for detailed root cause analysis
- Codes require human expertise and are subject to interpretation, no independent verification possible
- Evolving knowledge is difficult to capture
- No possibility to include other data such as digital pictures, etc.
- Limited support for fully automated drilling system processes
Objectives of IADC upgraded grade system:
- Rework the IADC Dull Grade System Code set to better support root cause analysis
- Eliminate or reduce the subjectivity inherent in the current system
- Support both human and automated bit dull grading systems
- Create a digital storage format including searchable metadata allowing bit dull grading information to be used by real time automated drilling systems.
- The digital storage format should also be capable to be used in machine learning tools, selection of next bit/BHA, parameter optimization, mud/formation interactions, as well as redesign efforts, etc.
- The reworked dull grading system shall be backwards compatible with the current IADC bit dull grading system if possible.
This forum will have a quick overview on these issues as well as cover the emerging automated bit-grading systems.
Moderator: Robin Macmillan – IADC Advanced Rig Technology
Proposed Grading System Upgrade (20 min)
- Robert van Kuilenburg – Noble
- Dustin Daechsel - Shell
- Paul Pastusek – ExxonMobil
Current State of the Art Presentations (10min each)
- Mark Byrd Hughes Christensen
- Matt Bose Halliburton
- Nathan Zenero Teradata
- Sean Emery Trax Electronics
- Pradeep Ashok RAPID Consortia, UT
- Brandon Linford US Synthetic
Open Discussion (20 min)
Proposed Sub Committees (Opportunities to Volunteer) (20 min)
- Storage Committee - Establish best practice(s) for data and metadata storage format – JSON?
- Case Study Committee
- Collect and curate data sets - Create meta data sets to describe forensic photos and drilling mechanics data
- Forensics - Create forensics evaluation workflow(s) and best practice(s) document
- PDC Code Revision Committee
- Propose Revised IADC Codes
- Training Data – Create training and test data sets of forensics photos with revised codes
- User Test – Coordinate field trials and update codes and instructions based on feedback
- Industry Comments – Send out for comments and revisions
- BHA Code Revision Committee (Phase 2)
- Consolidate and Finalize Proposed Codes (Mar 2022, Paper Oct 2021)
Contacts:
paul.pastusek@exxonmobil.com, robinamacmillan@gmail.com, RKUILENBURG@noblecorp.com
