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 15 Mob. +47 909 34 556 Email:
[email protected] www.norock@com
Norock & Co NO- 0779 Oslo Norway
List of Attachments
1.
Company Information Norock & Co
2.
Information Visnes Eklogitt A/S
3.
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
EQUIPMENT
BERYL A
Mobil
74
Gravel
Ballast
2.20
125.000
Grabs, conveyorbelts
BRENT B
Shell
74
Gravel
Ballast
2,20
140.000
Grabs, conveyorbelts
BERYL A
Mobil
76
Gravel
Scour Protection
2.20
30.000
BRENT D
Shell
76
Gravel
Ballast
2.20
100.000
Grabs, floating hopper shute Grabs, conveyorbelt
STATFJORD A
Mobil
76
Gravel Olivine
Ballast
2,20 2,50
80.000 10.000
Grabs, conveyorbelts
STATFJORD B
Mobil
79
Iron-Ore
Ballast
3,35
40.000
80
Olivine
Ballast
2,25
130.000
Pumping and mixing unit Grabs,
FULMAR SALM
Shell
81
Iron-Ore
Ballast
3,60
4.000
Pumping and mixing unit
TECHNOMARE
Phillips
83
Iron-Ore Orecrete
Ballast
3,85
60.000
Concrete pumping equip. (tests only)
STATFJORD C
Mobil
83
Iron-Ore
Ballast
3,70
230.000
Special ship, mixing unit
GULLFAKS A
Statoil
85
Iron-Ore
Ballast
3.60
215.000
Special ship, mixing unit
GULLFAKS B
Statoil
86
Olivine
Ballast
2,35
200.000
Special ship mixing unit
OSEBERG A
Hydro
86
Olivine
Ballast
2,35
340.000
Special ship mixing unit
SNORRE
Hydro
91
Iron-Ore Olivine
Ballast
3.50 2.20
11.000 10.000
DRAUGEN FLP
Shell
93
Iron-Ore
Ballast
3,50
2.000
TROLL OLJE
Hydro
94
Concrete
Ballast
2,40
10.000
Grab, remote control shute (delivery) Mixing and pump equip (delivery) Concrete mixing, pumping
DK
94 -96
Iron-Ore
Ballast
3,40
43.000
Grabs, barges conveyorbelts
S/DK
97-99
Iron-Ore
Ballast
3,40
60.000
Eclogite
Ballast
2,50
115.000
Grabs, barges conveyorbelts (delivery)
02 -05
Eclogite
Cover
2,20
600.000
Special Ships fallpipe
GREAT BELT BRIDGE
ØRESUND BRIDGE
PIPELINES NORTH SEA
DE RUITER, HOLLAND
Exxon
06
Eclogite
Ballast/scour
2,50
120.000
Holland(delivery)
ORMEN LANGE
Shell
06
Eclogite
Cover
2,20
600.000
PIPELINS NORTH SEA
Statoil
07/08
Eclogite
Cover
2,20
600.000
Special Ships Fall pipe(delivery) Fall pipe
PIPELINS, The Philippines
Shell
09
Eclogite
Cover
2,30
200.000
Fall pipe CIF
Windmills North Sea
BP
10/11
Eclogite
Scour
2,30
65.000
Fall pipe
Norock & Co NO- 0779 Oslo Norway
Norock & Co NO- 0779 Oslo Norway
Norock & Co NO- 0779 Oslo Norway
Norock & Co NO- 0779 Oslo Norway
Norock & Co NO- 0779 Oslo Norway
CURRICULUM VITAE NAME: YEAR OF BIRTH: NATIONALITY: LANGUAGES: MATERIAL STATUS:
TRULS SVERDVIK 1943 Norwegian English Married, four children
POSITION:
Project Manager
EDUCATION:
B.E. in Civil Engineering University of New South Wales Sydney, Australia
PROFESSIONAL SOCIETIES:
PAPERS:
S.P.E. (Society of Petroleum Engineers) P.F. (Petroleums Foreningen) Europec 78 (London) "Foundation of Offshore Structures"
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.
1987 -
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)
Norock & Co NO- 0779 Oslo Norway
1997/1999
2006 -
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
2007-
Delivery of rocks for Offshore Contructions
2009 -
Delivery of rocks for Malampaya Gas Project, The Philippines Delivery of rocks for offshore constructions.
2002/ 2004 2004 2005 2006 -
2010 – 11 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 tonne/hr. The private quay allows vessels up to 45.000 tonnes.
Norock & Co NO- 0779 Oslo Norway
3.0
Material Specification, Eclogite
3.11
Physical Properties
3.12a Grain Size distribution (1" - 3") and (1" - 5") 3.12b Grain Size distribution (3" - 9") and (9 – 18”) 3.13
Chemical Analysis
3.14
Sampling
3.15a
Comparison Eclogite vs Granite
3.15b Weight Correction Factor 3.15c
Eclogite vs Granite calculation
3.15d Rock size in inch Eclogite vs Granite 3.15e Definition of Densities 3.16
Reports
Norock & Co NO- 0779 Oslo Norway
3.11 Physical Properties, Eclogite Type:
Eclogite
Specific gravity
3,20 T/m3 loose
compacted
Dry Bulk Weight
1,75 t/m3 - 1,85 t/m3
Expected Saturated Volume Weight
2,20 t/m3 - 2,30 t/m3
Expected Submerged Volume Weight
1,20 t/m3- 1,26 t/m3
Moisture
< 0,1% (1″-3″) and (1″-5″)
3.12 a Grain Size Distribution
Opening: (1″-3″)
(1″-5″)
75mm
125 mm
100%
50mm
75 mm
50%
25mm
25 mm
2%
Note:
% passing
Fines , ie 0 - 6 mm < 0,5%, 6 - 25 mm < 1%
3.12 b Grain Size Distribution 3″- 9″ and 9” - 18”
Opening:
3”- 9”
9”- 18”
225 mm
450 mm (300 kg)
100 %
150 mm
300 mm
(90 kg)
50%
75 mm
225 mm
(30 kg)
10%
Other Grain Size Distribution on request.
% passing
Norock & Co NO- 0779 Oslo Norway
3.13
Chemical Analysis. SiO TiO2 Al2O3 Fe2O3 (tot) MgO CaO MnO K2O Na2O P2O5 Sum
3.14
48,80 1,60 14,55 11,00 9,05 11,75 0,16 0,09 3,35 0,20 100
Sampling The following tests will be carried out for each shipment 1.)
Dry bulk weight
2.)
Saturated volume weight
3.)
Grain size distribution
Norock & Co NO- 0779 Oslo Norway
3.15a
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
W Wo Pw Ps Pso
= = = = =
(Pso/Pw – 1)³ x Ps (Ps/Pw - 1)³ x 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
3.15b Figure 1
Norock & Co NO- 0779 Oslo Norway
3.15c Eclogite vs Granite calculation 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
Wg=Vg ∙ Sgg 100kg= Vg ∙ 2,65kg/dm³ ):Vg= 100/2,65=37,74 dm³= 37,74L
Submerged weight: 50kg-15,63 ∙ (1.026)=34,0kg
Submerged weight: 100kg-37,74 ∙ (1.026)=61,3kg
Volume= x³e = 15,63 dm³ xe = 2,50 dm
Volume= x³g = 37,74 dm³ xg = 3,36 dm
Area = x²e = 6,25dm² Pressure of rock at seafloor:
Area = x²g = 11,29 dm² Pressure of rock at seafloor:
Pe = 34,0kg/6,25dm² = 5,44kg/dm²
Pg = 61,3kg/11,29 dm² = 5,43kg/dm²
Norock & Co NO- 0779 Oslo Norway
3.15d Rocksize in inch Eclogite vs Granite
Table comparing Granite and Eclogite submerged Kg/dm² (active force against sea floor) note: Weight calculations based on a cube shape, however a more realistic values would be 80 % of the table values
Rock Size Inch 1" 2" 3" 4" 5" 6" 7" 8" 9" 10" 11" 12" 13" 14" 15" 16" 17" 18" 19" 20"
Rock Size mm 25,40 50,80 76,20 101,60 127,10 152,40 177,80 203,20 228,60 254,00 279,40 304,80 330,20 355,60 381,00 406,40 431,80 457,20 482,60 508,00
Volume dm³ 0,02 0,13 0,44 1,05 2,05 3,54 5,62 8,39 11,95 16,39 21,81 28,32 36,00 44,97 55,31 67,12 80,51 95,57 112,40 131,10
Eclogite Sp. gravity 3,20 Kg/dm³ kg 0,05 0,41 1,39 3,30 6,47 11,15 17,71 26,43 37,63 51,62 68,71 89,20 113,41 141,64 174,21 211,43 253,61 301,04 354,06 412,95
27"
685,8
322,55
-
Granite Sp. gravity 2,65 Kg/dm³ kg 0,04 0,35 1,17 2,78 5,44 9,38 14,90 22,23 31,66 43,43 57,80 75,04 95,41 119,16 146,56 177,87 213,35 253,26 297,86 347,41
Eclogite weight reduced by 50 % kg 0,022 0,174 0,586 1,390 2,721 4,690 7,448 11,117 15,829 21,713 28,900 37,520 47,703 59,580 73,281 88,936 106,675 126,629 148,929 173,703
kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg kg
854,75
427,374
kg
Ex.: A 20 inch Eclogite rock weighing approx. 400 kg can replace a 27 inch granite rock weighing approx. 850 kg Ex.2: A 15 inch Eclogite rock 174 kg can replace a 20 inch granite rock weighing 350 kg See table above
Norock & Co NO- 0779 Oslo Norway
Norock & Co NO- 0779 Oslo Norway
3.16
Reports
3.16.01
Eclogite Summary Test Result, CELTEST
3.16.02
Fibre Analysis of Eclogite, SINTEF
3.16.03
Eclogite Qualification Test, SINTEF
3.16.04
Eclogite as Concrete Aggregate NOTEBY
3.16.05
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.
3.16.07
Reduction of weight using Eclogite Material. Weight correction factor.
3.16.08
Advantages using Eclogite in offshore pipeline cover protection, scour protection and offshore marine constructions.
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
3.0
4.0
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%
TiO2 Fe203(tot.) CaO K2O P2O3
: 3,16 Mg/m3 : 3,18 Mg/m3 : 3,21 Mg/m3 : 0,6 : 2,8 : 10 : 9 : 440 kN : 96 : 61 - 59 - 61
1,60% 11,00% 11,75% 0,09% 0,20%
Pre Qualification test (for coverage of pipelines offshore) Mineralogic results: Quartz 5% Plagloklase 5% Klinoamph. 80% Garnet 5% Trace min 5% Grain Specific density : 3,21 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 Grain size Analysis D10 30 - 55 mm D50 63 - 105 mm D90 75 - 125 mm Shape Classification test :
:
34 degrees
: D10 42 mm : D50 65 mm : D90 85 mm "Flaky" and/or "Elongated" rocks not observed