A presentationto NFBL February 2007

BySverre Anderssen

Swell Technology for zonal isolation

• Head office in Stavanger, Norway• Started in 2001 • Worldwide market• Focus on zonal isolation and reservoir

technology• Acquired by Halliburton in November 2005• Halliburton Completion Tools• www.easywell.com

Easywell

Swellpacker™ Components

Global Installations

•4000+ packers and constrictors installed in 500+ wells

AddaxAmerada Hess BP BG GroupConocoPhillips DONGJVPCSantosPetroChinaSaudi AramcoPetro-CanadaAGIPAERA Energy

Kerr McGeeMaerskMarathon PetroleumKuwait Oil CompanyNorsk HydroShellStatoilCNOOCSocoPetronasTotalCNRWintershall

PemexFronteraPlainsOil SearchROC OilTalismanExxonMobilApacheNexenOxyChevronTexacoPDOTullow

Swellpacker™

Open up the wellbore increase productivityEliminate moving parts reduce failure modeOne-trip installation reduce rig time

In additionNo extra personnel

No Hazardous Materials and it is simple to handle

• Differential pressure capability• Swelling volume• Swelling time – first seal• Swelling time – operational pressure• Element length• Operational pressure requirement• OBM and WBM• Cable feed through

Simulator Software

Differential pressure

• The Swellpacker can be manufactured on all pipe sizes

• Slimmer pipe means thicker rubber with same packer OD

• More rubber means greater swelling, for higher differential pressure

• Longer packer length increases differential pressure capability

• Swells to seal irregular boreholes

4.5″

5.5″

6.625″

7″

8.15″

050

100150200250300350400450500550600650700750

8,4 8,6 8,8 9 9,2 9,4 9,6 9,8 10 10,2 10,4 10,6 10,8

Hole ID [in]

Diffe

rent

ial p

ress

ure

[bar

]

07251450217529003625435050755800652572507975870094251015010875

Diff

eren

tial p

ress

ure

[psi

]

4.5inx8.15inx9m Sw ellpacker5.5inx8.15inx9m Sw ellpacker6.625inx8.15inx9m Sw ellpacker7inx8.15inx9m Sw ellpacker

Swellpacker™ OBM

Swelling profiles for 5.5inx8.15in Swellpackers swollen in base oil, 100degC

0

5

10

15

20

25

30

35

40

45

50

8,3 8,4 8,5 8,6 8,7 8,8 8,9 9Swellpacker OD [in]

Tim

e to

firs

t sea

l [da

ys]

Swellpacker OBM HTSwellpacker OBM slowSwellpacker OBM mediumSwellpacker OBM fastSwellpacker WBM

• SwellpackerTM WBM• SwellpackerTM OBM• SwellpackerTM HT• SwellpackerTM HP• SwellpackerTM Cable• ConstrictorTM

• Cement AssuranceTM

• SwellpackerTM Lite

Easywell Swell TechnologyTM

Swellpacker WBM

• One rubber layer• Swells after production start up• No delay functionality

Basepipe

High swelling polymer

• Delays swelling to run in hole

• 3-layer construction• Engineered swelling

– OBM Fast– OBM Medium– OBM Slow– OBM HT

Swellpacker™ OBM

Low Swelling Outer Layer

OBM Diffusion Barrier

High Swelling Core

Swellpacker™ Lite

Swelling Element• Slip on design

Element Length• 1 meter (3.3 ft)

End Rings• aids deployment• elastomer support

• 70 bar rated• Standard API casing sizes• Custom sizes available• Installed at wellsite or pipe yard• Under development

Constrictor™

Modular slide-on packerDiverts annular flowProtects sand screensAlso Water Injectors

Swel

l Pac

ker

Sand

scr

eens

Con

stric

tor

Swellpacker Cable - Tripple

• Liquid Hydrocarbon– Swellpacker must be swollen in liquid Hydrocarbon

• OBM, Base Oil, Diesel, Crude, Synthetic Oil, condensate...– Heavy crudes take longer to swell and lighter crudes are faster

• Gas– Swellpacker will swell in gas but has limited differential pressure

capability– Swellpacker is stable in gas after swollen in liquid hydrocarbon

• Water– Swellpacker polymer does not attract water molecules– Swellpacker is stable in water after swollen in liquid hydrocarbon– Swellpacker will swell in high water cuts (even ppm will swell

over time)

Impact of Fluid Type

Swelling in high watercuts

• Swelling occurs in low oil saturation– Due to affinity between rubber and oil

• Swelling with low oil fraction take longer time

• Swellpacker is resistant to chemical attack– Tests performed with numerous oilfield chemicals at downhole

conditions (150°C)• Organic and non-organic acids• Scale inhibitors• Heavy brines• H2S, CO2

• Temperature can degrade the mechanical properties of rubber– Laboratory tests

• High temperature-250C• 3 months• Crude oil• Arrhenius correlation

– Result• 20 years at 190°C.• More than doubled for every 10°C decrease

Chemical & Temperature

40180

80170

20190

10 200

Estimated lifetime [years]

BHT [Co]

ESSOpen HoleCarbonate

Stimulation/ water control

Replace cementin reservoir / perforation

Gravel PackIsolation/

Replacement

Open Hole screen

isolation

SmartWell

Mechanical inflowcontrol

Open Holestraddle

Cased Holestraddle

Multilateraljunction

Open Holefrac

Expandable

Gas

Cement Assurance

HPHTHeavy oil

Applications

Slim hole

Water

Swell Technology™ reference list

• 4000+ Swellpackers and constrictors installed • Down to 10000m measured depth• Horizontals and vertical wells• MLTs and slimholes• Stimulation and smart wells• From 27°C (80°F) to 178°C (352°F)• 60+ operators including all majors• All continents

Summary• Swellpacker™

– Engineered swelling time – No mechanical parts to go wrong– Simple operational deployment– >4000 packers and constrictors successfully installed

• New developments– Thermopacker– Gaspacker