Eccentric Overburden Drilling Equipment
Eccentric drillingis used for casing following drilling while drilling in soil layer.
Product DescriptionSpecification
Operating Steps of Eccentric Reamer
1
At the beginning of drilling, the eccentric reaming sleeve spins out along the eccentric guide bit and begins reaming to ensure that the casing and drilling system advance simultaneously.
2
When drilling into the right position, carefully reverse, eccentric reaming sleeve cycle, and eccentric drilling system from the casing pull out.
3
The casing is pulled upwards and the concrete slurry or other filler is sprinkled at the bottom of the hole.
4
Conventional drilling tools are used in the bedrock to reach the required depth.
Specification
Specification of Eccentric Overburden Drilling Equipment
|
Type |
① Casing Tube |
② Drill Pipe |
③ Guide Sleeve |
④ TH-hammer |
⑤ |
⑥ |
⑦ |
⑧ |
|
Casing Shop |
Guide Device |
Reamer |
Pilot bit |
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|
NOD90 |
Maximun: 115mm |
Connection Thread: |
Effective length: |
ND35, Cop32, IR3.5, NQL30 |
L3=90mm L4=55mm D3=101.7mm D4=93mm |
L1=35mm L2=138mm D1=92mm D2=100mm |
D5=91mm L5=70mm |
D6=90mm L6=59mm |
|
Minmum: 102mm |
API2 3/8”Reg |
174mm |
Reaming Diameter: 123mm |
Gauge button |
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|
Reamer has 4XФ12 buttons |
8 X Ф12 |
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|
Wrench Flats: 65mm |
Front button |
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|
6 X Ф10 |
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NOD115 |
Maximun: 142mm |
Connection Thread: |
Effective length: |
ND45, Cop44, NSD4, DHD340A, NQL40, NM4 |
L3=76mm L4=55mm D3=127.5mm D4=117mm |
L1=48mm L2=136mm D1=115mm D2=126mm |
D5=114mm L5=89mm |
D6=114mm L6=67mm |
|
Minmum: 128mm |
API2 3/8”Reg |
174mm |
Reaming Diameter: 152mm |
Gauge button |
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|
Reamer has 5XФ14 buttons |
8 X Ф14 |
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|
Wrench Flats: |
Front button |
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|
65mm |
6 X Ф12 |
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|
NOD140 |
Maximun: 168mm |
Connection Thread: |
Effective length: |
ND55, Cop54, NSD5, DHD350R, NQL50 |
L3=90mm L4=63mm D3=155.3mm D4=143mm |
L1=55mm L2=160mm D1=141mm D2=154mm |
D5=138mm L5=69.5mm |
D6=138mm L6=66mm |
|
Minmum: 155.40mm |
API2 3/8”Reg |
205mm |
Reaming Diameter: 185mm |
Gauge button |
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|
8 X Ф16 |
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|
Wrench Flats: |
Reamer has 7XФ14 buttons |
Front button |
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|
65mm |
8 X Ф14 |
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|
NOD165 |
Maximun: 193.70mm |
Connection Thread: |
Effective length: |
ND65, Cop64, NSD6, DHD360, NQL60 |
L3=95mm L4=55mm D3=181.5mm D4=166mm |
L1=61.5mm L2=181.5mm D1=165mm D2=178mm |
D5=164mm L5=79.5mm |
D6=165.80mm L6=82.50mm |
|
Minmum: 181mm |
API2 1/2”Reg |
225mm |
Reaming Diameter: 211mm |
Gauge button |
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|
Reamer has 7XФ14 buttons |
8 X Ф16 |
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|
Wrench Flats: |
Front button |
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|
65mm |
8 X Ф16 |
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|
NOD190 |
Maximun: 219mm |
Connection Thread: |
Effective length: |
ND65, Cop64, NSD6, DHD360, NQL60 |
L3=110mm L4=70mm D3=204.7mm D4=193mm |
L1=62.8mm L2=185mm D1=191mm D2=203mm |
D5=164mm L5=79.5mm |
D6=165.80mm L6=82.50mm |
|
Minmum: 205mm |
API2 1/2”Reg |
225mm |
211mm |
Gauge button |
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|
Reamer has 7XФ14 buttons |
8 X Ф16 |
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|
Wrench Flats: |
Front button |
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|
95mm |
8 X Ф16 |
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|
NOD240 |
Maximun: 273mm |
Connection Thread: |
Effective length: |
ND85, Cop84, NSD8, DHD380, NQL80 |
L3=110mm L4=65mm D3=259mm D4=241mm |
L1=70mm L2=190mm D1=240mm D2=257mm |
D5=238mm L5=100mm |
D6=240mm L6=89.50mm |
|
Minmum: 260.4mm |
API2 1/2”Reg |
343mm |
Reaming Diameter: 308mm |
Gauge button |
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|
Reamer has 16XФ16 buttons |
12 X Ф18 |
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|
Wrench Flats: |
Front button |
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|
95mm |
32 X Ф16 |
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|
NOD280 |
Maximun: 324mm |
Connection Thread: |
Effective length: |
NSD10, NUMA100 |
L3=125mm L4=75mm D3=304mm D4=281mm |
L1=97mm L2=254mm D1=280mm D2=303mm |
D5=266mm L5=120mm |
D6=280mm L6=135mm |
|
Minmum: 305mm |
API2 1/2”Reg |
305mm |
Reaming Diameter: 378mm |
Gauge button |
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|
Reamer has 22XФ18 buttons |
12 X Ф18 |
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|
Wrench Flats: |
Front button |
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|
95mm |
27 X Ф16 |
Anbit Drilling Equipment Co., Ltd. is a professional water drilling rig manufacturers, mainly provides, drill bit, drilling tools, hammer machine, cheap air compressors, ABT Drilling Equipment, and etc, want to know more? Please contact us.
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