| After-sales Service: | 1 Year |
|---|---|
| Warranty: | 3 Months |
| Certification: | CE, RoHS, ISO 9001:2000 |
| Standard: | AISI, ASME, BS |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Customization: |
|---|
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3 1 2 S135 5 7 8 3 1/2 2 7 8 tuberia de perforacione 114mm 6m hq nq bq bw varilla de perforacione rcProcess Principle Taking the power head drilling rig as an example, the compressed air enters the annular gap of the double wall drill pipe through the air inlet swivel, and along the annular gap to the drilling tools of hole bottom, through the drilling tool of the hole bottom flows into the inner pipe of the drill pipe, and carries the cuttings from the inner pipe back to the ground.An appropriate amount of foaming agent can be injected into the compressed air to form an air foam drill to further improve its ability to carry cuttings back up.
Technical Features:
(1). Compared with the positive circulation drilling, since the cuttings are returned from the inner pipe, the speed of the
upwardreturn Fast, strong ability to carry cuttings, clean bottom of hole, so drilling efficiency is greatly improved;
(2). Due to nowater or very little water consumption, it is especially suitable for drilling in dry and leaky formations;
(3). If the outer flat double-wall drill pipe method is used, it can solve the problem of drilling in the formation of collapse,
breakage and shrinkage;
(4). Air, air atomization, air foam, foam mud, mud or water can be used as flushing medium, which belongs to multi-process multi-media drilling technology;
(5). According to the characteristics of the formation and the flushing medium, various types
ofdrill bits can be used for drilling.
|
|
External Tube Dia.*Thickness
(mm)
|
Inner Tube Dia.* Thickness
(mm)
|
Thread
|
Length
(mm)
|
Sealing
(Type)
|
Drilling Depth
(m)
|
|
80*8
|
48*5
|
Buttress Tread
|
1500-6000mm
|
Dual O Ring Radial
|
300-800
|
|
89*8.56
|
38*4
|
3" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
300-800
|
|
102*8.56
|
46*5
|
3" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
300-1000
|
|
108*8.56
|
46*5
|
3 1/2" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
300-1200
|
|
114*8.56
|
50*5.5
|
4" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
300-1200
|
|
127*9.35
|
60*7
|
4" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
Less 5000
|
|
146*10
|
75*7
|
4 1/2" Remet / Metzke
|
1500-6000mm
|
Dual O Ring Radial
|
Less 5000
|
| 3 1 2 S135 5 7 8 3 1/2 2 7 8 tuberia de perforacione 114mm 6m hq nq bq bw varilla de perforacione rc | |||||
| 1. Are you exact manufacturer or just trading company? We are both,we have our own factory. And also have many long-relationship factories. 2. What is your minimum order quantity? Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.
We are welcome your sample order to testing our quality.
3. Can you accept OEM & ODM? Yes, both of them are acceptable,.Please tell us your requirements or design drawings kindly.
As we have our own R&D team and the team leader is Dr.Zhao mingchun who has been always
in the material research and drawing design of drilling tools for 25 years.And he had designed the
world's biggest top hammer bit and DTH hammer bit, highly praised by the users.
4. How about Packing Using ply-wooden cases and pallet for exporting to protect products and avoid the damagement during transportation.
Also, we can customize package according to your special requests. 5. How about the delivery time? It depends, generally it takes about 15-25days. If have stocks, Usually only 5-10 days if in stock. 6. Can I have a visit to your factory before the order? Sure, welcome, kindly contact us for address details and time schedule. |
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