Deep Hole Drilling Record [Gwang-Ju, Korea, 2013]
Water Hammer
Drilling System
Drilling Depth Development History
Year/L
/ ocaƟon
0
500
08’ SWD(4”) 09’ UK(4”) 09’ KOR(8”) 10’ KOR(6”) 11’ KOR(6”) 12’ KOR(8”) 13’ KOR(8”)
30
1000
10
4330
4000
40
5000
New concept!!
New Water hammer!!
1000
1500
Powerful & Deep hole drilling!!
2000
2500
Drilling Record
2505
25
0
3000
3500
3505
Dept
De
pth
pt
h (m)
Liverpool, UK - Geothermal Drilling - 2009
Stockholm, Sweden - Jet Grouting Site, Jun of 2008
London, UK - Geothermal Drilling - 2009
Korea, Hard Granite 430m - 2012
Gwang-Ju City, Korea Geothermal Drilling 8", 2505m - 2012
Gwang-Ju City, Korea Geothermal Drilling 8", 3505m - 2013
CO2
70%
Cost
500%
Water hammer
Air polluƟon
Soil polluƟon
Noise PolluƟon &
VibraƟon
Aquifer Drilling
Advantage
RegulaƟon
70% Emission ReducƟon(Max. 500%)
None
1. Noise : 90% ReducƟon
(The downtown construcƟon is possible)
2. VibraƟon : 85% ReducƟon(dam grouƟng)
Regardless of soil condiƟon, Deep drilling is also possible
1. Straight drilling is possible(horizontal boring)
2. Deep drilling is possible(more than 1500m)
3. Vulnerable soil drilling producƟvity is excellent
4. Fuel ReducƟon
None(In Korea)
Air hammer
strong polluƟon
10 Liter oil per 100m boring
1. popular complaint, if the downtown
ConstruƟon operates
2. VibraƟon structure in not allowed to bore
Need for lots of air compressor & booster compressor
Not allowed to use in Vulnerable soil and
have horizontal boring prob
Not allowed to use at some regions of
Sweden & New Zealand
49, Hanamsandan 10-Ro, Gwangsan-Gu, Gwangju, Republic of Korea
TEL +82-62-953-4525 FAX +82-62-953-4520 E-MAIL [email protected]
Why D&B Water Hammer?
Geothermal/Water Hole Drilling System
350W / 250W / 45W
Max Drilling depth over 5000m
Special Accumulate system(Patent)
Eco friendly Drilling method
Water Hammer
(No need hammer oil and free of soil contaminaƟon on the DTH hammer drilling site)
Long bit life Ɵme
Low noise water hammering
No need for Pressure down drilling
Min. maintenance : Valveless hammering system
100% Recycling water using available system(Patent)
BIT CHUCK
LOWER SEAL CASE
Water Pump
PISTON
VALVE
SeparaƟng System
HEAD
Water Tank
BIT GUIDE RING
TUBE
VALVE HOLDER
Purification System
UPPER SEAL CASE AIR LOAD CONNECT
D&B Water Hammer SpecificaƟon
Hole size bit
(mm)
Diameter of Tube
(mm)
Length
(mm)
Total Length
with bit (mm)
Weight (kg)
D&B-35WH
102
88
1997
2080
76
D&B-40WH
115
100
2124
2199
98
D&B-50WH
140
116
2211
2300
138
D&B-60WH
152
137
2506
2596
270
D&B-80WH
203
182
2866
2977
400
D&B-100WH
252
225
3045
3185
480
D&B-120WH
304
265
3130
3330
570
Drill Pipe
Water consumpƟon
at max pressure (lit/min)
OperaƟng pressure
(bar)
D&B-35WH
API 2-3/8''Reg/NC23
200
120 ~ 175
D&B-40WH
API 2-3/8''IF/NC26
300
120 ~ 175
D&B-50WH
API 2-3/8''IF/NC26 API 2-7/8''IF/NC31
450
120 ~ 175
D&B-60WH
API 3-1/2''Reg API 2-7/8''IF/NC31
600
120 ~ 175
D&B-80WH
API 4-1/2” IF
800 - 1000
120 ~ 175
D&B-100WH
API 4-1/2''IF
900 - 1100
120 ~ 175
D&B-120WH
API 4-1/2''IF
1100 - 1200
120 ~ 175
Ultra Deep Geothermal/Water Hole Drilling
0m
ConvenƟonal
2,000m
,
(Rotary Wash : Tricone bit)
,
4,000m
SoŌ
6,000m
,
Water Hammer
8,000m
,
Hard~Very Hard
10,000m
Drilling
Fluid (Water) :
Dr
rii
Transport
of rock cuƫngs
Tra
a
IIncrease
Inc
c
Drilling Speed
Upp to 5~10 Ɵmes
100%
1000
00 Water Recycling
ReducƟon
Drilling Cost
Reed
ed
50~85%
500~
0~