Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE...

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Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL

Transcript of Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE...

Page 1: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

Pike River Coal Mine

ACARP Presentations August 2008

Peter Whittall – General Manager, MinesPIKE RIVER COAL

Page 2: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Project Overview

• High value hard coking coal (HCC) – used for steelmaking

• NZ $240m project – fully funded

• 70% of coal sold for first 3 years – 55% for life of mine

• 1 million tonnes for 18 + years

• HCC prices strong at US $300 per tonne

• Roadway development by roadheader and CM; Extraction by Hydraulic

Monitoring

Page 3: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Pike River Mine

Location Map

PIKE RIVER COAL

Greymouth

Greymouth

Wellington

Lyttelton

Page 4: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Cross Section of the Coal Seams

Paparoa Seam

Brunner Seam

Page 5: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Tunnel Under Construction

Tunnel currently at Hawera Fault at 2,164m

Total Tunnel length 2,300m to coal seam

Portal September 2006 Tunnel Face Construction

Page 6: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Mine Plan• Seam thickness: 3 to 13m but typically 4

– 9m;

• Roadway development by Continuous Miner and Roadheader

• Coal extraction by Hydro Monitor system (9000 litres/minute)

• All coal haulage by water: In mine by open flume; pit bottom to CPP by 10.5km 11” pipeline (4000 litres/minute per machine)

• In-seam drilling to define geological structure and limits

• Seam-, strata- and fault-originating mine water

• Gas average 4m3/t across lease; up to 10m3/t at depth; no outburst

Mining Parameters

Page 7: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Pit Bottom in Stone

•LHS: Fluming water; electrical

•RHS: Coal slurry bins; crushers; slurry pumps

•481m of stone excavation

•Max width: 8m

•Max Height: 11m

•Concrete: 600m3 of 50MPa; 170m3 of 10MPa

Page 8: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Pit Bottom in Stone

•LHS: Fluming water; electrical

•RHS: Coal slurry bins; crushers; slurry pumps

•481m of stone excavation

•Max width: 8m

•Max Height: 11m

•Concrete: 600m3 of 50MPa; 170m3 of 10MPa

Page 9: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Seam Cross Section

Immediate Roof: Shales and coal rider seam

Upper Roof: Massive sandstone +100MPa

Floor: Interbedded shales and mudstones

Seam coring for Sulphur analysis

Seam dips 5o – 30o

Page 10: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Pit Bottom in Coal

4m dia. X 108m shaft

Main Fans

Pike River Tunnel

Water storage roads

Raw Coal Ponds

Page 11: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Hydro Productivity(Excluding continuous miner and roadheader production)

•9,000 litres water/min

•3.6 t/min coal cutting rate

•40% Fluming density

•61.5% efficiency

•Shift productivity = 1,062t

•Daily productivity = 3,186t

•Annual productivity = 1.1Mt

Roadway and Extraction Productivity

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Roadway Grade (degrees)

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pm

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CM

RH

Continuous Miner v Roadheader Productivity

Page 12: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Roadheader (Waratah)

Page 13: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Roadheader (Waratah)

Page 14: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Roadheader (Waratah)

Page 15: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Roadheader (Waratah)

•Base Machine: Wirth T1.14

•Cutting Dimension: 6.6m wide x 4.4m high

•Shovel: 4m – 4.9m wide

•Gradients: Up to +/- 18o

•Custom deployment frame

•Floor pressure: 0.15MPa

•Total Power: 272 KW

Page 16: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Continuous Miner

Page 17: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Continuous Miner

•Base Machine: Wirth H4.40 Miner Bolter

•Cutting Height: 2.5m – 4.0m

•Machine/Cutting Width: 3.5m

•Tracks: 560mm width

•Floor Pressure: 0.2MPa

•Drill Rigs: ARO S2500 (2.4m)

•Rib Rigs: ARO S2500 (1.8m)

•Coal Sizer fitted

•Cross Levelling via tracks

Page 18: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Continuous Miner

Page 19: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Development Considerations

•No recent history in Brunner Seam

•Multinational experience, expectations, norms

•Coal roof, coal floor, 5 – 30o seam grades

•Setting challenging but realistic KPI values

•Data gathering and analysis

•New mining equipment to site (and market)

•Strata control system

•Coal clearance by water – no conveyors

•Hot seat change out? – 6.5km to amenities; 1.2km to portal; 2.3km to pit bottom

Page 20: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Mining Extraction by Hydraulic Monitor

Parameters for success:– Strong roof and floor– Strong but fractured coal– Moderate to thick seam

(3 - 13 metres)– Moderately dipping

seam (5° - 30°)– Good supply of water

(Pike has rainfall of over 6m/year in mine vicinity)

Page 21: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Sub-Rise Extraction

Page 22: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Sub-Level Extraction

Page 23: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Pike River Fly Over

Page 24: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL Production Timetable

Forecast to meet coal seam in late August 2008

0

200,000

400,000

600,000

800,000

1,000,000

1,200,000

1,400,000

2009 2010 2011 2012 2013

Year ended 30 June

Ton

nes

Page 25: Pike River Coal Mine ACARP Presentations August 2008 Peter Whittall – General Manager, Mines PIKE RIVER COAL.

PIKE RIVER COAL

Project Summary

• NZ’s second largest coal export mine when at 1 Mtpa

• Premium quality hard coking coal at 1% ash

• Tunnel at 2,164m, through the Hawera Fault with coal in late September 2008

• Most surface infrastructure complete with train loadout commenced

• Major local employer with 65 full time staff now, 18 more due to commence, building to 150 at full production in mid 2009

• Transport system solution in place from coal face to port with all contracts let and underway

• $30 - $40M in local spend annually