1. Welcome to the
World of Trelleborg
TRELLEBORG GROUP

2. Drill Riser Buoyancy Overview Offshore Europe 2019-02-28
TRELLEBORG GROUP

3. DRBM - Purpose
The drill riser provides a conduit for the drill string and drilling fluids from the ocean floor to the rig. This has significant weight which must be supported by its own structure and ultimately by the drilling vessel. In order to reduce this weight in water to a more manageable amount, discrete buoyancy units in the form of Drill Riser Buoyancy Modules (DRBMs) are fitted along the length of the riser.
Trelleborg DRBM Technical Presentation

4. DRBM - Purpose Drill Riser String Being Deployed
DRBM Riser Weight Reduction
A typical 10,000ft riser string can weigh 3-4 million pounds without buoyancy.
The buoyancy is a crucial part of the riser system and provides an important reduction in weight.
Reduces Riser String weight to a manageable level.
Trelleborg DRBM Technical Presentation

5. DRBM - Safety Trelleborg Safety System ULTRA MIS
Drill Riser Buoyancy is used offshore and operates in a hostile environment. Many operations are performed that can have a detrimental effect on DRBM’s. These operations could result in cracked or broken buoyancy elements which could cause damage to surrounding equipment and more importantly cause a safety risk for personnel.
Health and Safety underpins all that we do and to this end, we have developed the “Ultra MIS” range of Drill Riser Buoyancy.
Ultra MIS (Module Integrity System) is the inclusion of a special discrete layer under the external skin of the buoyancy providing the ultimate in structural integrity and strength.
Trelleborg DRBM Technical Presentation

6. TOUS Facilities Current State RANKIN ROAD INFORMATION WEST HARDY
Employees
200
Status
Owned
Site Area
7.5 Acre / ft² / 136,200 ft²covered
Products
Drill Riser Buoyancy Modules
General Buoyancy
WEST HARDY
INFORMATION
Employees 60
Status
Leased / July 31, 2015
Site Area
10+ Acre / 120,000 ft² covered
Products
Drill Riser Buoyancy Module Finishing
Service
Drill Riser Buoyancy Module Repair
519
INFORMATION
Employees 40
Status
Leased / June 30, 2014
Site Area
12,000 ft² Office Area
Offices
Country Management Team
Office Area
Administration, HR, Sales, Design & Project Management

7. Striving for More Stackable RiserGuard® - Riser Protection Systems
Key items to discuss:
We are routinely drilling deeper than 10,000FSW
Deck space/load on rig is not increasing.
Continuous Improvement approach to new protection technology (current stackable RiserGuard is 4th generation).
Stackable RiserGuard® - Riser Protection Systems
Pushing the limit without sacrificing Safety, Reliability & Performance
TRELLEBORG OFFSHORE

8. Space, Weight and Time
Space -West Hercules rig demonstrates limited space on latest generation rigs.
Weight – talk about stacking now -12 high. Mention “neutral buoyancy” of RG elements/shims in H20 and
Time – faster to run riser due to protected external lines as well as same geometry as
RiserGuard® is designed to maximize riser storage capacity on the rig as well as increase performance when deployed.
TRELLEBORG GROUP

9. Innovations in Drilling Riser Protection
Proven low density high strength polymer materials used.
Reduced weight while deployed.
Complete protection of riser and peripheral lines.
Simplified installation/handling of RiserGuard®.
Stacking capabilities of stackable RiserGuard® significantly improved.
Materials – low density hi strength polyethylene & industry standard polyurethane.
Weight – start talking about stacking –as much as 12 high. Mention proximal “neutral buoyancy” of RG elements/shims
Time – faster to run riser due to protected external lines as well as same geometry as buoyant joints .
Dress/undress is similar to buoyancy.
TRELLEBORG GROUP

10. Stackable RiserGuard®: A Reliable Solution
-Offers complete protection of bare riser joint and external lines during handling, storage, and drilling operations.
-offers same OD & geometry as buoyancy (allows bare joints to be run at same speed as buoyant joints).
-Light Weight Material (neutral in sea water).
-Excellent Abrasion and Impact Resistance
-Quick and Easy Installation
-Stackable
-Spare Parts Available
-Proven Track Record (available upon request)
Let them read, Just talk about Drilling Contractors that use our RiserGuard.
Transocean, Maersk Drilling, Seadrill, Sevan, Noble, Saipem etc.
Also mention that we protect Pup jts, T-jts etc.
TRELLEBORG GROUP

11. Taking The Pressure Off
Trelleborg’s Stackable RiserGuard® - slick joint protection system.
Provides a cost effective and complete slick joint protection solution for both on and off the rig.
Efficient, economic and safe.
Proven for today’s drilling rigs and ready for the next generation.
Wrap-up. Talk about 12k depths and deeper, multiple OD scenarios.
Be prepared to discuss VIV fairings etc if it comes up.
TRELLEBORG GROUP

12. Trelleborg Offshore Links
Download Trelleborg Offshore product handout at the following link: chures/ %20TOUS%20Drilling_Final_web.pdf
Visit Trelleborg Offshore Website for additional product information at the following link: Offshore Oil and Gas - Trelleborg AB
[BA/BU/PA]Name