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Your present location:Home > Products > Other products > Eccentric Overburden Drilling Equipment
Eccentric Overburden Drilling Equipment

Overburden Drilling
Model:NOD90/NOD115/NOD140/NOD165/NOD190/NOD240/NOD280
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details

Type

Casing Tube

Drill Pipe

Guide Sleeve

DTH-hammer

Casing Shop

Guide Device

⑦ Reamer

Pilot bit

 

NOD90

Maximun

115mm

Connection Thread

API2 3/8”Reg

Effective length

174mm

ND35,

Cop32,

IR3.5,

NQL30

L3=90mm

L4=55mm

D3=101.7mm

D4=93mm

L1=35mm

L2=138mm

D1=92mm

D2=100mm

D5=91mm

D6=90mm

L6=59mm


O.D

76mm

L5=70mm

Gauge button

8 X Ф12


Wrench Flats

65mm

Reaming Diameter

123mm

Front button

6 X Ф10


Minmum

102mm


Reamer has 4XФ12 buttons


NOD115

Maximun

 

142mm

Connection Thread

API2 3/8”Reg

Effective length

174mm

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

D6=114mm

L6=67mm


L5=89mm


Gauge button

8 X Ф14


Front button

6 X Ф12


Reaming Diameter

152mm


O.D

76mm


Minmum

128mm


Wrench Flats

65mm

Reamer has 5XФ14 buttons


NOD140

Maximun

 

168mm

Connection Thread

API2 3/8”Reg

Effective length

205mm

ND55, Cop54, NSD5, DHD350R, NQL50

L3=90mm

L4=63mm

D3=155.3mm

D4=143mm

L1=55mm

L2=160mm

D1=141mm

D2=154mm

D5=138mm

D6=138mm

L6=66mm


O.D

89mm

 

L5=69.5mm

Gauge button

8 X Ф16

 


Reaming Diameter

185mm


Minmum

155.40mm


Front button

8 X Ф14


Wrench Flats

 

65mm

Reamer has 7XФ14 buttons


NOD165

Maximun

193.70mm

Connection Thread

API2 1/2”Reg

Effective length

225mm

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

D6=165.80mm

L6=82.50mm


Gauge button

8 X Ф16


O.D

114mm

L5=79.5mm


Reaming Diameter

211mm


Minmum

181mm

Front button

8 X Ф16


Wrench Flats

65mm


Reamer has 7XФ14 buttons


NOD190

Maximun

 

219mm

Connection Thread

API2 1/2”Reg

Effective length

225mm

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

D6=165.80mm

L6=82.50mm


O.D

114mm

L5=79.5mm


Gauge button

8 X Ф16

 


Reaming Diameter

211mm


Minmum

205mm


Front button

8 X Ф16


Wrench Flats

95mm

Reamer has 7XФ14 buttons


NOD240

Maximun

273mm

Connection Thread

API2 1/2”Reg

Effective length

 

343mm

ND85,

Cop84,

NSD8,

DHD380,

NQL80

L3=110mm L4=65mm D3=259mm D4=241mm

L1=70mm L2=190mm D1=240mm D2=257mm

D5=238mm

D6=240mm

L6=89.50mm


L5=100mm


Gauge button

12 X Ф18

 


O.D

114mm

Reaming Diameter

308mm


Front button

32 X Ф16


Minmum

260.4mm


Reamer has 16XФ16 buttons


Wrench Flats

95mm


NOD280

Maximun

324mm

 

Connection Thread

API2 1/2”Reg

Effective length

 

305mm

NSD10,

NUMA100

L3=125mm L4=75mm D3=304mm D4=281mm

L1=97mm L2=254mm D1=280mm D2=303mm

D5=266mm

D6=280mm

L6=135mm


L5=120mm


Gauge button

12 X Ф18 


O.D

114mm


Reaming Diameter

378mm


Minmum

305mm

Front button

27 X Ф16


Wrench Flats 

95mm

Reamer has 22XФ18 buttons




Eccentric Reamer System Operating Steps

1

2

    When the rock drilling work begins, the eccentric reaming sleeve moves out along the eccentric guide bit and begins to expand the hole to ensure that the casing and drilling system go forward at the same time.

 

   After the pipe is in place, the reverse is carefully reversed, the eccentric reaming sleeve is cycled, and the eccentric drill system is pulled out of the casing.

 

3

4

    The casing is pulled upwards and the concrete slurry or other filler is sprinkled at the bottom of the hole.

 

    Conventional drilling tools are used in the bedrock to reach the required depth.

 



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International:+86 731 89708148

Address:岳阳市平江工业园

yueyang city ping jiang industrial park


Email:China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
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