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Norock & Co NO- 0779 Oslo Norway

COMPANY PROFILE AND MATERIAL SPECIFICATION

Gråkamveien 14 c 0779 Oslo Norway Phone. +47 22 13 93 10 +47 22 13 93 13 Fax. +47 22 13 93 13 Mob. +47 909 34 556 Email: [email protected] [email protected]

Norock & Co NO- 0779 Oslo Norway

List of Attachments

1. 2. 3.

Company Information Norock & Co Information Visnes Eklogitt A/S Material Specification Eclogite

Norock & Co NO- 0779 Oslo Norway

1.0 Norock & Co

The company's main objective is to supply and deliver solid ballast material and to carry out consulting work for Marine Concrete Constructions in the North Sea. During the 13 years work for Norwegian Contractors the company gained vital experiences on numerous concrete platforms with focus on solid ballasting inshore/offshore, installation and foundation of gravity platforms, Solid (heavy fill) ballasting operations varying from 1.500 tonnes to 340.000 tonnes. During the last years the company has been working on a number of platforms wrt solid ballast material operations. Snorre '91 and Draugen '93 where Norock delivered the material, logistics, fabrication of necessary equipment as well as supervised the actual operation. It finally undertook procedures, commissioning and final reports/documentation. Furthermore the company has been consultants for Hibernia, Mobil Canada wrt the ballasting operation amounting 500.000 tonnes of iron ore. Other projects have been Troll Olje platform, Great Belt Bridge and Øresund Link Bridge where the company delivered the ballast material consisting of Eclogite and iron ore. (see attached reference list) Current projects are continuous delivery of rock dumping material for Offshore Contractions and submerged pipelines in the North Sea as well as deliveries of ballast material for fixed platforms. Latest operation was delivery of approx 200.000 tonnes of Eclogite for protection of a gas pipeline in The Philippines. The company can supply and deliver different types of ballasting materials, i.e. sand, moraine, gravel, heavy rocks and iron ore with specific gravity ranging from 2,2 - 5,0 T/m3. Norock & Co represent and deliver ballast material from the following companies. Companies: Visnes Eclogite, Norway Norwegian Producers, Norway : ; Eclogite Granite

Norock & Co NO- 0779 Oslo Norway

Company reference list:

REFERENCE LIST OF NOROCK & CO'S PREVIOUS BALLASTING OPERATION EXPERIENCES ref nor021104 - ref PLATFORM COMPANY YEAR MATERIAL CASE SATURATED QUANTITY BERYL A BRENT B BERYL A Mobil Shell Mobil 74 74 76 Gravel Gravel Gravel Ballast Ballast Scour Protection Ballast Ballast 2.20 2,20 2.20 125.000 140.000 30.000 EQUIPMENT Grabs, conveyorbelts Grabs, conveyorbelts Grabs, floating hopper shute Grabs, conveyorbelt Grabs, conveyorbelts Pumping and mixing unit Grabs, splitbarges Pumping and mixing unit Concrete pumping equip. (tests only) Special ship, mixing unit Special ship, mixing unit Special ship mixing unit Special ship mixing unit Grab, remote control shute (delivery) Mixing and pump equip (delivery) Concrete mixing, pumping Grabs, barges conveyorbelts (delivery) Grabs, barges conveyorbelts (delivery) Special Ships fallpipe (delivery) Holland(delivery) Special Ships Fall pipe(delivery) Fall pipe

BRENT D STATFJORD A

Shell Mobil

76 76

Gravel Gravel Olivine Iron-Ore Olivine

2.20 2,20 2,50 3,35 2,25

100.000 80.000 10.000 40.000 130.000

STATFJORD B

Mobil

79 80

Ballast Ballast

FULMAR SALM

Shell

81

Iron-Ore

Ballast

3,60

4.000

TECHNOMARE

Phillips

83

Iron-Ore Orecrete

Ballast

3,85

60.000

STATFJORD C

Mobil

83

Iron-Ore

Ballast

3,70

230.000

GULLFAKS A

Statoil

85

Iron-Ore

Ballast

3.60

215.000

GULLFAKS B

Statoil

86

Olivine

Ballast

2,35

200.000

OSEBERG A

Hydro

86

Olivine

Ballast

2,35

340.000

SNORRE

Hydro

91

Iron-Ore Olivine Iron-Ore

Ballast

3.50 2.20 3,50

11.000 10.000 2.000

DRAUGEN FLP

Shell

93

Ballast

TROLL OLJE

Hydro

94

Concrete

Ballast

2,40

10.000

GREAT BELT BRIDGE

DK

94 -96

Iron-Ore

Ballast

3,40

43.000

ØRESUND BRIDGE

S/DK

97-99

Iron-Ore Eclogite

Ballast Ballast Cover

3,40 2,50 2,20

60.000 115.000 600.000

PIPELINES NORTH SEA

02 -05

Eclogite

DE RUITER, HOLLAND ORMEN LANGE PIPELINS NORTH SEA

EXON SHELL STATOIL

06 06 07/08

Eclogite Eclogite Eclogite

Ballast/scour Cover Cover

2,50 2,20 2,20

120.000 600.000 600.000

PIPELINS, The Philippines 09

Shell

09

Eclogite

Cover

2,30

190.000

Fall pipe (delivery)

Norock & Co NO- 0779 Oslo Norway

CURRICULUM VITAE NAME: YEAR OF BIRTH: NATIONALITY: LANGUAGES: MATERIAL STATUS: POSITION: EDUCATION: TRULS SVERDVIK 1943 Norwegian English Married, four children Project Manager B.E. in Civil Engineering University of New South Wales Sydney, Australia

PROFESSIONAL SOCIETIES:

S.P.E. (Society of Petroleum Engineers) P.F. (Petroleums Foreningen) Europec 78 (London) "Foundation of Offshore Structures"

PAPERS:

EXPERIENCES 1990 NORKALSITT A/S / GLÆRUM KALKSTEINGRUVE A/S Manager Mining Companies, supplying Calcium Carbonate for the European Industrial Mineral Market as filler to paper - paint and plastic industry. NOROCK & CO, Project Manager Consultancy work for the mining and offshore industry. Design, co-ordination and execution of the offshore/inshore solid ballasting operation on the following projects. 1991 Snorre CFT, SAGA (delivery of ballast material) 1993 Draugen FLP, SHELL (delivery of ballast material) 1993/1994 Troll Olje, HYDRO (consultancy) 1994 Hibernia, MOBIL Canada, (consultancy) 1994/1995 Great Belt Bridge, DK (delivery of ballast material)

1987 -

Norock & Co NO- 0779 Oslo Norway

1997/1999 2002/ 2004 2004 2005 2006 2006 20072008 20092009 -

Øresund Bridge S (delivery of ballast material) Delivery of rocks for pipeline cover, North Sea; Kristin, Åsgaard, Mikkel, Draugen Delivery of rocks for pipeline cover, North Sea. Ormen Lange Consultant for Adriatic LNG Terminal Venezia. Italy Consultant for two concrete platforms for PB, Sakhalin CGBS project, Russia. Consultant for Shan Deniz project, Baku Azerbaijan. Delivery of rock to the Ruiter Platform Delivery of rocks for Offshore Contructions Delivery of rocks for Offshore Contructions Delivery of rocks for Offshore Contructions Delivery of rocks For Malampaya Gas Project, The Philippines

1975 - 1987

NORWEGIAN CONTRACTORS, OSLO Senior Project Engineer Responsible for design, co-ordination and execution of inshore and offshore solid ballasting operations as well as all phases of the offshore installation work, including grouting of seabed foundation on the following platforms: 1976 - Mobil Beryl A (Mobil Expro UK) 1976 - Shell Brent B (Shell Expro UK) 1977 - Shell Brent D (Shell Expro UK) 1978 .- Mobil Statfjord A (Mobil North Sea) 1978 - Elf Frigg TCP-2 (Elf Aquatine N) 1979 - Fulmar SALM (partly) (Exxon UK) 1981 - Mobil Statfjord B (Mobil North Sea) 1983 - Mobil Statfjord C (Mobil North Sea) 1985 - Gullfaks B (Statoil N) 1987 - Gullfaks B (Statoil N) 1987 - Oseberg A (Hydro N)

1974 - 1975

A/S HØYER-ELLEFSEN, OSLO Ass. Design Co-ordinator Design and Development Department. Offshore Structures

Norock & Co NO- 0779 Oslo Norway

2.0

VISNES EKLOGITT A/S Visnes Eklogitt A/S was founded in 1992 and is a subsidiary of Visnes Kalk og Marmorbrudd A/S. Visnes Kalk og Marmorbrudd A/S is a privately owned company, founded in 1904, and is based on mining and processing limestone deposits at Visnes in Eide, Norway. Visnes Kalk og Marmorbrudd A/S has deposits of approximately 30 million tonnes of limestone with 98% CaCO3 to which they have the mining and production rights. The eclogite deposit is approx. 100 million tonnes. Visnes Eklogitt has all the necessary equipment for crushing and sieving the eclogite. A large storage area adjacent to the port can take approx 200 000 tonnes of material. Due to its mechanical properties and high density it is used as ballast material in bridges and large offshore constructions, as well as armour stones for coastal protection and cover for underwater pipelines. The loading take place 24hr/day, 7 days/week (SSHINC) by conveyor belt with a capacity of approx 2.500 tonn/hr. The private quay allows vessels up to 40.000 tonnes.

Norock & Co NO- 0779 Oslo Norway

3.0

Material Specification, Eclogite

3.11

Physical Proportion

3.12a Grain Size distribution (1" - 3") - (1" - 5") 3.12b Grain Size distribution (2" - 9") - (3" - 9") Note: other grain size distribution on request. 3.13 3.14 3.15 3.16 Chemical Analysis Sampling Comparison Eclogite/Granite. Reports

3.11 Physical Properties, Eclogite Type: Specific gravity Eclogite 3,15 t/m3 loose Dry Bulk Weight Expected Saturated Volume Weight Expected Submerged Volume Weight Moisture - 3,20 T/m3 compacted

1,75 T/m3 - 1,85T/m3 2,2 T/m3 - 2,3 T/m3 1,20 T/m3 ­ 1,25 T/m3 < 0,1%

Norock & Co NO- 0779 Oslo Norway

3.12 a Grain Size Distribution

(1-3) - (1-5)

Opening: (1-3) 75mm 50mm 25mm Note:

% passing (1-5) 125 mm 75 mm 25 mm Fines , ie 0 - 6 mm < 0,5%, 6 - 25 mm < 1% 100% 50% 2%

3.12 b Grain Size Distribution 2 ­ 9 (50 mm ­ 225 mm) 3- 9 (75mm-225mm)

Opening

(1-3) (1-5)

% passing

225mm 150mm 50mm

225 mm 150 mm 75 mm

100 % 50% 10%

3.13

Chemical Analysis. SiO TiO2 Al2O3 Fe2O3 (tot) MgO CaO MnO K2O Na2O P2O5 Sum 48,80 1,60 14,55 11,00 9,05 11,75 0,16 0,09 3,35 0,20 100,55

Norock & Co NO- 0779 Oslo Norway

3.14

Sampling The following tests will be carried out for each shipment 1.) 2.) 3.) Dry bulk weight Saturated volume weight Grain size distribution

Norock & Co NO- 0779 Oslo Norway

3.15

Comparison Eclogite vs Granite. Scour, High Density Protection.

If high density rock material is used, the stone weight can reduced considerably. The stone weight needed for a given rock density may be corrected according to the formula: W = Wo (Pso/Pw ­ 1) 3 x Ps (Ps/Pw - 1) 3 x Pso

W Wo Pw Ps Pso

= = = = =

Weight of actual rock Weight of reference rock Sea water density ~ 1.025 kg/dm3 Actual rock density Reference rock density = 2.680 kg/dm3 and the stone weight is given by

W = Wo x k The factor k below is shown as a function of the rock density.

Example: W = Wo x k W Wo k = = = Weight of eclogite (density 3,20 kg/dm3) Weight of granite (density 2,68 kg/dm3) Factor 0,50 (see graph)

If you require a 100 kg granite rock you can replace that rock with an eclogite rock of 50 kg. Ie. W = 100 x 0,50 = 50 kg. A 100 kg Granite rock has the same submerged weight/dm2 as a 50 kg Eclogite rock.

Norock & Co NO- 0779 Oslo Norway

Figure 1

Norock & Co NO- 0779 Oslo Norway

High density rock protection material

Comparison between Eclogite VS Granite (Gneiss). Use of high density rock reduce the stone weight by 50% Assumtion: Sg. Eclogite: Sge = 3,20kg/dm³ Sg. Granite: Sgg = 2,65kg/dm³ Sg. Seawater: Sgw = 1,026kg/dm³

50 kg rock of Eclogite.

=

100 kg rock of Granite

We=Ve Sge 50kg= Ve 3.20kg/dm³ ):Ve= 50/3,20=15,63 dm³= 15,63L Submerged weight: 50kg-15,63 (1.026)=34kg Volume= x³e = 15,63 dm³ xe = 2,5 dm Area = x²e = 6,25dm² Pressure of rock at seabottom: Pe = 34kg/6,25dm² = 5,44kg/dm²

Wg=Vg Sgg 100kg= Vg 2,65kg/dm³ ):Vg= 100/2,65=37,74 dm³= 37,74L Submerged weight: 100kg-37,74 (1.026)=61,3kg Volume= x³g = 37,74 dm³ xg = 3,36 dm Area = x²g = 11,29 dm² Pressure of rock at seabottom: Pg = 61,3kg/11,29 dm² = 5,43kg/dm²

Norock & Co NO- 0779 Oslo Norway

3.16

Reports

3.16.01 3.16.02 3.16.03 3.16.04 3.16.05

Eclogite Summary Test Result, CELTEST Fibre Analysis of Eclogite, SINTEF Eclogite Qualification Test, SINTEF Eclogite as Concrete Aggregate NOTEBY Sea Water Stability of Eclogite, FOSROC

3.16.06 Abrasion and Impact Norsk Index ALLIS 3.16.08 Eclogite as Ballast in Marine Concrete Structures, SINTEF. Reduction of weight using Eclogite Material. Weight correction factor. Advantages using eclogite in offshore pipeline cover protection.

3.16.07

3.16.08

Note: Above reports to be forwarded on request

Norock & Co NO- 0779 Oslo Norway

Physical Properties of eclogite tested by CELTEST LIMITED June 1996. SUMMARY TEST RESULTS. 2.0 Laboratory test 2.1 Particle density (oven-dried) Relative density (saturated and surface-dried) Particle density (apparent) Water absorption (% of dry mass) 2.2 Aggregate Abrasion Value (mean) 2.3 Aggregate Impact Value (Dry) 2.4 Aggregate Crushing Value 2.5 Ten per cent fines value - Dry 2.6 Magnesium Sulphate Soundness Value 2.7 Polished Stone Value Chemical analysis SiO2 48,80% Al2O3 14,55% MgO 9,05% MnO 0,16% Na2O 3,35%

: 3,16 Mg/m3 : 3,18 Mg/m3 : 3,21 Mg/m3 : 0,6 : 2,8 : 10 : 9 : 440 kN : 96 : 61 - 59 - 61

3.0

TiO2 Fe203(tot.) CaO K2O P2O3

1,60% 11,00% 11,75% 0,09% 0,20%

4.0

Pre Qualification test (for coverage of pipelines offshore) Mineralogic results: Quartz 5% Plagloklase 5% Klinoamph. 80% Garnet 5% Trace min 5% Grain Specific density : 3,11 t/m3 Dry bulk density : 1,700 t/m3 uncomp. Porosity : 0,452 t/m3 uncomp. Point Load Index : 12,08 MPa Salt Resistance : See salt resistant mineral comp. above Natural slope angle : 34 degrees Grain size Analysis D10 30 - 55 mm : D10 42 mm D50 63 - 105 mm : D50 65 mm D90 75 - 125 mm : D90 85 mm Shape Classification test : "Flaky" and/or "Elongated" rocks not observed

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