Our Company The Fleet News & Events Investor Relations Careers Responsibility
 

Internal Investigation  Public Report

Macondo Well Incident: Transocean Internal Investigation

  Report Files (PDF)
 
    •  Macondo Well Incident:  Transocean Investigation Report, Vol. I (Full Version, 74 MB)
    •  Macondo Well Incident:  Transocean Investigation Report, Vol. II (Full Version, 195 MB)
 
Adobe PDF files require Acrobat Reader to view.  Click here to download.
 
  Video Summaries
 
    •  Blow-Out Preventer (BOP)
    •  Automatic Mode Function (AMF)
 
 
Internal Investigation Report by Chapter:
 
Executive Summary
Chapter 1:  The Macondo Prospect and the Deepwater Horizon
Chapter 2:  Incident Chronology and Overview
Chapter 3:  Incident Analysis
 
     3.1 Well Design and Production Casing Cement
     3.2 Temporary Abandonment
     3.3 Drill Floor Activities
     3.4 Blow Out Preventer (BOP)
     3.5 Gas Dispersion and Ignition
     3.6 Muster and Evacuation
 
Chapter 4:  Key Findings
 
Appendices:    
 
Appendix A:  Abbreviations and Acronyms
Appendix B:  Macondo Casing Calculations
Appendix C:  Testing of Cement Float
Appendix D:  Centralization Plan at Macondo
Appendix E:  Review of Macondo #1 7” x 9-7/8” Production Casing Cementation
Appendix F:   Lock-Down Sleeve Decision
Appendix G:  Hydraulic Analysis of Macondo #252 Well Prior to Incident of April 20, 2010
Appendix H:  BOP Modifications
Appendix I:   BOP Maintenance History
Appendix J:  BOP Testing
Appendix K:  BOP Leaks
Appendix L:  Drill Pipe in the BOP
Appendix M: Structural Analysis of the Macondo #252 Work String
Appendix N:  AMF Testing
Appendix O:  Analysis of Solenoid 103
Appendix P:  Deepwater Horizon Investigation: Gas Dispersion Studies
Appendix Q: Possible Ignition Sources
 
References:  
 
Transocean Internal Investigation News Release
Transocean's Response to the U.S. Coast Guard Draft Report 
Copyright © 2013 Transocean Inc. All Rights Reserved
Governance  /  Contact Info  /  Site Map  /  Search