1. INSTRUCTOR © 2017, John R. Fanchi
All rights reserved. No part of this manual may be reproduced in any form without the express written permission of the author.
© 2004 John R. Fanchi All rights reserved. Do not copy or distribute.

2. To the Instructor
The set of files here are designed to help you prepare lectures for your own course using the text Introduction to Petroleum Engineering, J.R. Fanchi and R.L. Christiansen (Wiley, 2017)
File format is kept simple so that you can customize the files with relative ease using your own style. You will need to supplement the files to complete the presentation topics.

3. Offshore Facilities © 2017, John R. Fanchi
All rights reserved. No part of this manual may be reproduced in any form without the express written permission of the author.
© 2004 John R. Fanchi All rights reserved. Do not copy or distribute.

4. Outline
Offshore Platforms
Offshore Issues

5. OFFSHORE PLATFORMS

6. Offshore Platforms – 1
accessed , and

7. Offshore Platforms – 2 1 10 3
4, 5 2 6
7, 8 9
1, 2) conventional fixed platforms (e.g. Shell’s Bullwinkle in 1991 at 412 m/1,353 ft GOM)
3) compliant tower (e.g. ChevronTexaco’s Petronius in 1998 at 534 m /1,754 ft GOM)
4, 5) vertically moored tension leg and mini-tension leg platform (e.g. ConocoPhillips’ Magnolia in ,425 m/4,674 ft GOM)
accessed

8. Offshore Platforms – 3 1 10 3
4, 5 2 6
7, 8 9
6) Spar (e.g. Dominion’s Devils Tower in 2004, 1,710 m/5,610 ft GOM)
7,8) Semi-submersibles (e.g. Shell’s NaKika in 2003, 1920 m/6,300 ft GOM)
9) Floating production, storage, and offloading facility (e.g. 2005, 1,345 m/4,429 ft Brazil)
10) sub-sea completion and tie-back to host facility (e.g. Shell’s Coulomb tie to NaKika 2004, 2,307 m/ 7,570 ft).
accessed

9. Typical Depths of Offshore Production Systems
Steel jacket platforms – 1,500’ water depth
Gravity based platforms – 1,000’ water depth
Compliant towers – 3,000’ water depth
Tension leg platforms – 5,000’ water depth
Production spars – 7,500’ water depth
Floating Production Offloading Vessels & Subsea completion – Unlimited water depth

10. http://thaidecom.com/uploads/images/11.gif, accessed 10-17-10
Size Comparison
accessed

11. Key Components of an Offshore Platform

12. Northwest Hutton, North Sea JPT (Jan 2013) and SPE 156827
Installed 130 km northeast of the Shetland Islands in a water depth of 144 m. Consisted of a t steel jacket support structure and t of topside modules. At its peak, NWH produced a maximum of 86,500 BOPD. Platform now decommissioned (taken apart)

13. Capture and Containment Vessels
Outfitting and testing ships for emergency hydrocarbon capture and processing operations in US Gulf of Mexico
Eagle
Texas
Eagle
Louisiana
In response to Deepwater Horizon
Converted tankers
FPSO capability
Capture capacity
Oil: 100,000 BPD
Gas: 200 MMSCF/D
Ships docked near
Ingleside, Texas
Source: Photo courtesy of Marine Well Containment Co., JPT (Nov 2014), pg. 40
© 2004 John R. Fanchi All rights reserved. Do not copy or distribute.

14. OFFSHORE ISSUES

15. OFFSHORE ISSUES Cost dominant Ocean properties Wind & weather
E.g. capital investment in platforms
Ocean properties
Depths now exceeding 10,000’
Ocean currents
Wind & weather
North Sea sometimes 125 mph wind & 90’ waves
Gulf of Mexico hurricanes common
W. Africa relatively calm compared to above
Sea floor stability
North Sea floor is hard – good for gravity based platforms
GOM – unstable floor needs pile driving

16. Heavy Lift Catamaran Removing topsides of burned out platform in GoM
Jacket
Built by Versabar (Houston – New Orleans), JPT May 2011

17. Single lift vessel JPT (Jan 2013) and OTC 23169
Vessel built for single lifting of topsides of offshore platforms up to 53,000 short tons and jackets up to 27,500 short tons. The vessel will have a wide slot at the bow that fits around platform substructures and will be equipped with a hydraulically operated topside-lifting system.

18. Offshore Wind Turbine, 2 MW JPT (Jan 2013) and OTC 23492
Add turbine to platform in dry dock
2 to 2.3 MW Wind turbine prototype
Offshore Portugal
49 m deep water, 6 km offshore
Connected to Portugese power grid

19. 2nd Explosion on Petrobras P-36
2nd explosion increased flooding of column
Further flooding
Aft starboard column compartments
Pontoon tanks
accessed Nov. 24, 2014

20. QUESTIONS?

21. SUPPLEMENT