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Hole Opener, Hole Opener With Pilot Bit

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US$ 500 - 10,000 MOQ: 1 Piece
Key Specifications
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Place of Origin:
China
Brand Name:
HJ
Model Number:
Hengji
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Hejian Hengji Bit Manufacture Co., Ltd.
Payment & Shipping
Payment Methods:
Port of Shipment:
Tianjin
Delivery Detail:
Delivery time depends on order quantity.

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Place of Origin China
Brand Name HJ
Model Number Hengji
Type Core Drill Bit
Material Cobalt Steel Alloys
Use Well Drilling

 DRILLING FORMATION GUIDANCE OF PURCHASING TRICONE BITS 

 

ROLLER
 CONE BITS

ROLLER CONE BIT
(M/H)

FORMATION
HARDNESS

FORMATION

ROCK TYPE

COMPRESS
STRENGTH

WEM

OBM

111/124

15-30

18-33

Very
soft

soft formation with sticky layers and low compressive strength

clay,silts,
sands

<25 MPa

116/137
437

9-15

12-18

soft

soft formation with low compressive strength and high drill ability

claystone,marl,
lignite,tuff,
sandstone

25-50 MPa

126/139
517/527

4.5-9

6-12

Medium
soft

soft to medium formation with low compressive strength interb dded with hard layers

claystone,marl
lignite,sandstone
silts anhydrrites
tuff

50-75 MPa

211/217
517/537

2.5-6

3-6

Medium

medium to hard formation with high compressive strength and small abrasive layers

mudstone ,
limstone,
anhydrites,
sandstone

75-100 MPa

211/236
537/617

1.5-2.5

1.5-3

Medium
hard

hard and dense formation with very high compressive strength but non-abrasive

limestone,
anhydrites,
dolomite

100-120MPa

311/347
627/637

1-1.5

1-1.5

Hard

hard and dense formation with very high compressive strength and some abrasive layer

shale,sandstone
,siliceous,
siltstone

100-200MPa

637 /737 /837

1

1

Very
 hard

extremely hard and abrasive formtions

quartzite, lgneous ,rocks

>200MPa

SIRUITE COMPANY ROCK DRILL BITS CONDITIONS

Item

TCI Tricone Bit,      Steel Tooth Bit      

 

 IADC CODE

 116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347

417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526  537 547 516 536  535

available sizes

From 3 7/8” to 26”

larger sizes for hole opener bit ,reamer bit

advantage

The most advanced production lines in China of rock bits (factory price); world famous brands agent

bearing type

sealed bearing and non-sealed bearing

metal sealed journal bearing)  

rubber sealed journal bearing

Air cooled bearing type

Formation or layer

soft ,medium soft ,hard, medium hard, very hard formation

Button size (extra features)

Button bit,saw teeth

1) Y-Conical teeth  2) X-chisel teeth

3)K- wide teeth  4)G- Gauge protection

Material

tungstencarbideinsert,Carbonsteel

Packing

Wooden case or steel case

Payment term

T/T,L/C ,Western Union,Paypal

Delivery term

By sea or by air

Delivery time

2 days(stock), 30 days(production)

Market

South Europe,South Korea, Japan, Singapore ,Saudi Arabic,Dubai,USA, Middle east ,Africa, Europe,Central Asia,Russian

Application

Petroleum & gas ,water well ,mining ,oil field, construction, geothermal, directional boring, and underground foundation work

 

 

1Main advantages of oil well rock bit:

  * The strength and wear resistance of inserts are improve by using carbide inserts with high strengthand high wear resistance.
  * Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing.
  * The service life of the bearing is further extended by adopting harder and mort wear resistant material for thrust bearing.
  * Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing.

  * This series oil well rock bit  use Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased.
  * Thrust bearing surfaces are hardfaced and treated with friction reducing technology.
    *This series oil well rock bit use Journal bearing. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. The load capacity and seizure resistance of the bearing is greatly improved.

hole opener, hole opener with pilot bithole opener, hole opener with pilot bit

2 Introduction of oil well rock bit:

Item

Tricone drill bit, rock roller bit, oil well rock bit

Bearing Type

H---Friction bearing; G---Roller bearing; F--- Floating Bearing

Sealing Type

HJ(metal sealed journal bearing)   HA (rubber sealed journal bearing)  aircooled bearing type

Size

From 2 7/8” to 26” larger sizes for hole opener bit ,reamer bit

IADC Code

116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347

417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526  537 547 516 536  535

Material

alloy steel, tungsten carbide insert

Extra Feature

1) Y-Conical teeth  2) X-chisel teeth 3)K- wide teeth 4)G- Gague protection

 

 

Applicable Formation

Very soft, soft , medium soft ,hard, medium hard, very hard formation

Application

Petroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work

Package

Wooden case or as your requirement

Payment Term

T/T, L/C at sight

Lead Time

3-10days

Delivery Way

By sea or by air

 

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Hejian Hengji Bit Manufacture Co., Ltd.
Business Type
Manufacturer
Year Established
2012
Factory Size
3,000-5,000 square meters
Total Employees
101 - 200 People
Contact Supplier Request Quote Chat Now

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