Specifications

competitive price with high quality
cover all size and IADC CODE
inspection by SGS.VB
timely delivery.
ISO 9001&API

 

 

 

  

 

1.Features of hole opener bits

 

Hole Openers are used to enlarge the diameter of a pre-drilled hole. They are custom built to specification, and come in a wide variety of sizes. A Hole Opener is sometimes referred to as a Reamer.

 

2.Advantages of  hole opener bits

 

  Directional crossing operation is widely used in unexcavated project. Three steps in such operation are: 1, oriented hole operation; 2, hole opening; 3, pipe pulling. Hole opening is the most onerous task in this operation, but, the key for hole opening operation is the hole opener choosing according to the operation equipment and formation.

 3.specifications:

1.Hole opener rock bit
2.fully heat-treated alloy steel.
3.With cutters for Soft,Medium Hard format
4.manufacturer

 

It is suitable for the large size well, mining and infrastructure applications.

 

Size		Bit Type
In.	mm
28	711.2	117, 127, 517, 537, 617, 637
32	812.8	117, 127, 517, 537, 617, 637
38	914.4	117, 127, 517, 537, 617, 637

IADC	WOB (KN/mm)	RPM (r/min)	Applicable Formations
114/116/117	0.3~0.75	180~60	Very soft formations with low compressive strength and high drillability
124/126/127	0.3~0.85	180~60	Soft formations with low compressive strength and high drillability,
134/135/136/137	0.3~0.95	150~60	Soft to medium formations with low compressive strength and high drillability
214/215/216/217	0.35~0.95	150~60	Medium formations with high compress strength
227	0.35~0.95	150~50	Medium hard formations with high compressive strength
Note: The upper limits of WOB and RPM in above table should not be used simultaneously.

4.Hole opener

1>    newest TCI tricone bit

2>    API kingdream bit, type: Milled tooth&TCI tricone bits

3>    a large stock

4>    High temperature and wear resistance, fast drilling rate

5>    high penetrating power and durability stuiable for different rock formation, reliable bearing system

6>    IADC code suitable for different formation

7>    Sizes range from 3 7/8" to 26".

8>    Best prices and great quality

9>    top quality products and excenllent service

10> about 30 years experience in tricone bits

11> used for water well, mining and oilfield drilling

 

  

      

 

 

 

 

 

Hejian Zhongcheng Bit Manufacture Co.LTD. .(SRF)

Hejian Zhongcheng Bit Manufacture Co.LTD, our brand “SRF”,

“SRF” includes: Tricone bit( steel tooth & TCI bit),PDC drill bit (matrix & steel body),step drag bit,HDD Reamer bit (Hole opener),Stabilier,Drill pipe,drill rod,Rock Auger,bit breakers,bit subs,barrel reamer,open reamer ,rock reamers,diamond core bits,concave pdc bits,barrel reamers,open reamerbits,rock reamers,….--competitive price with high quality.

--timely delivery and wooden case packing

• --inspection:by you ,by inspection company,likeSGS.VB,,,,,,
  --YOU RUN AT NO RISK.

   

  8.FAQ

    

  1. How to make an order 

  When you make an order, please provide the follow datas: 

  1)Inform the rock condition and drill machine model;

  2)Confirm the bit series;

  3)Supply the specfications and thread sizes;

  4)If Samples, drawings, we can produce as all requested.  

• 2.how to do the inspection: work with SGS VB or by youself

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• 9.Contact person:
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