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Concentric Overburden Wing Drill Bit

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US$ 2,000 - 3,500 MOQ: 1 Set
Key Specifications
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Place of Origin:
Hunan, China
Brand Name:
Tianhe
Model Number:
symmetrix 90-815 overburden drill bit
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Changsha Tianhe Drilling Tools And Machinery Co., Ltd.
Payment & Shipping
Payment Methods:
Port of Shipment:
Shanghai
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin Hunan, China
Brand Name Tianhe
Model Number symmetrix 90-815 overburden drill bit
Type Other, Concentric casing system
Material Other, carbide, Carbide
Use Well Drilling

Specifications

Applied to the drilling where rock formation is overburden and need casing tube to support.
Certificate: ISO9001:2008, SONCAP.

Application Range

It is recommended to drill in rock formation where contains some ovals and fractures.

Design Principles

 Make the casing follow easy and the equipment and operation simple 

Outstanding Advantages

The stable and reliable working performance and the less vibration of drill rig and flexible to open and close.

Operation Procedure

1.when the drilling starts, the wings swing out,and reams to drive the casing shoes and tubes into the hole.

2.When finished the drilling in overburden rock formations, reverse the drilling tools and the wings will get closed, and the drilling tools can be raised from the hole.

3.Next construction can be followed.

Order Guide:  A+B+C+D+G

Specifications

A 

B

C

D

E

F

Outer Dia. of 

Casing Tube

  Inner Dia. of 

Casing Tube

Reamed Dia.

Min. Inner Dia. of 

Casing Shoe

 

Hammer Type

 

 

Drill Pipes

 

mm

mm

mm

mm

 

mm

114

101-103

125

93

TH79

60

140

124-127

152

113

TH98

76

146

127-132

154

115

TH98

76

168

149-155

184

138

TH122

76,89

178

159-165

194

148

TH122

76,89

193

173-180

206

164

TH139

114

219

199-206

234

185

TH139,TH180

114

244

224-231

273

219

TH180

114

 

 

Concentric overburden wing drill bitConcentric overburden wing drill bitConcentric overburden wing drill bit

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Changsha Tianhe Drilling Tools And Machinery Co., Ltd.
Business Type
Manufacturer, Trading Company
Year Established
2002
Factory Size
50,000-100,000 square meters
Total Employees
201 - 300 People
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