stimwellservices

SSttiinn

Stimwell Services Limited, incorporated and registered in Scotland under registration number SC335751. Registered office: c/o McGrigors LLP, Johnstone House, 52-54 Rose Street, Aberdeen, AB10 IUD

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StimWell Services

Island Patriot

Designed to stimulate the world’s biggest wells

in a single mobilisation

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The Vessel

Designed to meet DNV Stimulation Vessel Class certification and to operate in any area of the globe, Stimwell’s

Island Patriot represents a step-change in vessel design philosophy.

Carrying capacity

Carrying 2,500,000 lbs of proppant, the vessel has been built to complete the majority of horizontal, multi-zone

propped fracture treatments in a single mobilisation. Freshwater capacity is in excess of 280,000 usg with ship-to-

ship or installation-to-ship transfer equipment incorporated for in-field loading. Liquid Gel Concentrate storage is set

at 27,000 usg allowing the vessel to theoretically pump 2.5 million usg of 40lb gel in one mobilisation.

Acid stimulation

An acid-carrying capacity of 160,000 usg 34% HCl allows the vessel to effectively pump 195,000 usg 28% or 380,000

usg 15% HCl in one mobilisation. The aft proppant tanks have been designed to be removed, allowing the vessel

acid-carrying capacity to be effectively doubled should a customer perceive a need.

Proven Stimulation Equipment

Pumping and blending equipment has been fabricated from Stewart & Stevenson’s range of state-of-the-art proven

fracturing equipment and comprise 6 ea Model FS-2251-SW skid-mounted fracturing units, a Model MS-60-SS, 60

bpm automatic density skid mounted blender and 3 x 6 pump, skid mounted Chemical Additive Units. All are

controlled by Stewart & Stevenson’s Accufrac control and interface system.

Health, Safety and the environment

The vessel will operate to the highest standards of Health and Safety and in addition, has been designed for zero

discharge. There is provision to recycle any proppant returned from the well on clean-out and the full portfolio of

Stimwell’s acidizing and proppant fracturing chemicals have been registered for use in all four sectors of the North

Sea.

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Experienced Personnel

The core-team used to design and build the vessel consisted of experienced stimulation vessel personnel, taken from

managerial and operational disciplines and primarily North Sea. Additional experienced crew have been added

through the build-process leading to the full structure represented below.

Research & Development

Stimwell has a deep commitment to re-invest in research and development and intends to become a market leader in

technical excellence.

Availability

The vessel will be available for general use from mid 2010 with a 6 month maximum period for prior booking.

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Marine

General (P105)

Class DNV Stimulation Vessel

Flag Norway

Owner Island Offshore

Yard Ulstein Verft (2005)

Dynamic Positioning System (DP 2)

2 off Wind Sensor

2 off Motion Reference Unit

2 off Veripos DGPS

1 off Radascan Reference System

1 off Cyscan Reference System

Main Particulars

Length Overall 86.2 m

Breath Moulded 19.0 m Depth

Main Deck 8.0 m

Max Draft 6.65 m

Deadweight at 6.65 m 4844 T

Machinery System

Main Engines 4 Main Engines 10,340 BHP

Bow Thrusters 1 x 1,200 HP Tunnel

1 x 1,200 HP Azimuth

Stern Thrusters 2 x 3,400 HP Azipull

Generators

Main Generator 4 x 1,825 eKW

Emergency Generator 1 x 215 KW

Anti-Rolling System

Two ea Passive Stabilizing Tanks

Deck Machinery

Work Crane 1 x SWL 1.5T @ 15 m

Satellite

1 off SEV-SAT IP 128 kb/sec

2 off Satcom C. Part of GMDSS

Accomodation

Number of Persons 35 single cabins

Marine Tankage

Freshwater 280,000 usg+

Fuel Oil 1,673 m3

Seakeeping

Expected 4m significant wave & 35 knot wind

Stimulation

Operational Specifications

Designed to operate in all areas of the world

Treatment Pumps

Hydraulic Horsepower (HHP) 12,000*1

6 x SPM TWS 2500 5 ea 5”, 1 ea 4”

Max. Rate (bpm) 70

Max Pressure (psi) 15,000 *2

*1Independent of ships power

*210k standard, 15k adaptable

Treating Iron

2 ea 4 inch ID 15K 400 ft Coflexip hoses

2 ea Emergency Quick Disconnect

Anson 15K treating iron

Nitrogen (skid-units on demand)

Maximum Nitrogen Rate 6,000 scf/min

Maximum Storage 540,000 scf

Blending Sytem

Stewart & Stevenson MS-60-SS Blender

Acid Service Rate 60 Bpm

Proppant Blending Rate 60x BPM @ 12 ppa

Max. Proppant input 20,000 lb.min

Max. Discharge Density 20 ppg

Storage Capabilities

35% HCL 160,000

Liquid Gel Equiv. 2.5 MM gal 40 lb gel

Hydration Tank (usg) 25,000

Dry Additives 2 ea 12 m3, 2 ea 9 m

3

Liquid Additives (usg) 6,300 in 12 tanks, 18 pumps

Brine Storage (usg) 50,000 +

Proppant Capacity (lbs) 2,500,000*1

Liquid Nitrogen (MMscf) 540,000 scf*2

*1coated ISP

*2 On demand (skid unit)

Stimulation Control

Computerised data logging/processing in real-time

Data Acquisition - S&S Accufrac & Myers Frac

Fracture Design software – NSI Stimplan

Ship-to-shore computer communications

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For more information contact Stimwell at:

StimWell Services Ltd

Beacon Innovation Centre

Beacon Park

Gorleston

Great Yarmouth

NR31 7RA

Tel: +44 (0)1493 448028

Fax: +44 (0)1493 448022

www.stimwellservices.com

stimwellservices

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