Water Well Drill Bits

Delivery term:The date of payment from buyers deliver within days
  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Henan

  • Validity to:

    Long-term effective

  • Last update:

    2019-08-21 13:00

  • Browse the number:

    100

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Company Profile
Besharp Diamond Co.,Ltd
Contactaixin:

hnjinrui(Mr.)  

Email:

telephone:

phone:

Arrea:

Henan

Address:

No.146, The Seventh Street, Econ And Tech Development Area, Zhengzhou, Henan, China.

Website:

http://www.hnbesharp.com/ http://hnjinrui.keleaco-entertainments.com/

Product details

▶ Introduction

PDC water well drill bits are brazed from a PDC tool to a steel body or substrate. PDC tools have high hardness, wear resistance and toughness. The PDC bit has a life of 20-40 times and the bit efficiency is 50% higher than that of the tungsten carbide bit.


▶ Breaking Mechanism

The rock breaking effect of the PDC daimond water well drill bits is done by diamond particles. In a hard formation, a single diamond is eroded into the formation under the action of drilling pressure, causing the rock to become brittle from high stress. Under the action of the broken rock, the depth of cut is approximately equal to the depth of the diamond particles entering the formation. The whole process is like “plowing the ground” and cutting the diamond drill bit.


▶ Application

PDC water well drill bits are suitable for rock formations below f18, such as granite, limestone, sandstone, mudstone and so on. Mainly used for coal mining, water wells, geothermal wells, geological exploration, drilling, gas drainage holes, drainage holes, blast holes, etc.


▶ How to Choice PDC Bit

▷ Select PDC bits with different cross sections depending on the lithology of the formation:

① A diamond drill bit with a double-conical trapezoidal profile should be used for the softer to medium hard formation;

② Double-cone diamond drill bits should be used for hard and tight sandstone formations, limestone and dolomite;

③ B-shaped diamond drill bits should be selected for hard sandstone, dense dolomite and other strata;

④ A diamond bit with a B-wave profile should be used for the hard formation.

▷ Select the drill type according to the drillability of the formation:

① Select PDC bit when the drillability is less than 5 and the formation is soft to medium hardness;

② Use TSP drill bit when the drillability is greater than 5 and less than 8 and the formation is in the medium hardness to hard;

③ Choose natural diamond pdc drill bit when the drillability exceeds 8.


▶ Specification

Diameter
(mm)

Diameter
(inch)

Wing

Thread

Rock Formations

Application

56

2.2"

3,4

AW,BW,NW,
API thread
or others as requested

f≤18
Mudstone,
limestone,
sandstone,etc


water well drilling, geothermal well drilling, construction, coal mining, etc.

65

2.56"

3,4

76

3"

3,4

95

3 3/4"

3

98

3 7/8"

3

100

4"

3

108

4 1/4"

3

114

4 1/2"

3

121

4 3/4"

3

127

5"

3

133

5 1/4"

3,4

146

5 3/4"

3,4

153

6"

3,4

171

6 3/4”

3,4

191

7 1/2"

4,5,6

203

8”

4,5,6

216

8 1/2"

4,5,6

Note: Other sizes are available upon request.

We can also produce and design according to each customer's drawings/samples/requirements.


▶ Material

PDC (polycrystalline diamond) cutter, carbide steel


▶ Packaging

One pc is packed in a cardboard box and then packed in a large cardboard box.

http://www.hnbesharp.com/