73mm Outer Dianeter Of Joint Or Customized Double Wall Drill Pipe
Product Description
1. Name: Double wall drill pipe
2. Size: DP89/40-DP219/150
3. Standard: ISO API
4. Certification: ISO API
In order to realize the reverse circulation drilling process of the
through-the-hole DTH hammer, the matching drilling tool system
mainly includes a double-wall drill rod. In addition to the
through-the-hole DTH hammer used to realize the impact effect, a
reverse circulation drill bit and a double channel are also
required Faucet, and other auxiliary tools. The double-arm drill
pipe is one of its core components
| Product Name | Double wall drill pipe |
| Material | steel |
| Color | black |
| Standard | API, ISO |
| Grade | SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8 8.8 10.9 12.9 |
| Thread | mail joint |
| Used | water well drilling, gas well drilling, geotherm well etc. |
Double wall drill pipe
| Type | O.D.of the outer tube (mm) | I.D.of the inner tube (mm) | Outer dianeter of joint (mm) | Type of threads | Effective length (m) |
| WB114/65 | 114 | 65 | 156 | 41F | 6 |
| WB127/76 | 127 | 76 | 162/168 | 41/21F | 6 , 9.5 |
| DB127/76 | 127 | 76 | 184 | 51/2FH | 9.5 |
| WB140/88 | 139.7 | 88 | 184 | 51/2FH | 6,9.5 |
| WB219/130 | 219 | 130 | 240 | Factory standard | 6,9.5 |
| WK76/32 | 76 | 32 | 78 | 3" Remet | 3 |
| WK102/41 | 102 | 41 | 103 | 4" Remet | 3 , 6 |
| WK114/52 | 114.3 | 52 | 116 | 4 1/2" Remet | 3 , 6 |
| WK114/38 | 114.3 | 38 | 114.3 | 4 1/2" Metzke | 3 , 6 |
| WK114/50 | 114.3 | 50 | 114.3 | 4 1/2" Remet | 3 , 6 |
| WP50/20 | 50 | 20 | 50 | | 1 , 1.5 |
| WP73/35 | 73 | 35 | 73 | | 1 , 1.5 |
| WP89/40 | 89 | 40 | 89 | | 1 , 1.5
|
Two force regions
The threads of the non-dig drill pipe produced in the company have
two Force regions. Such structure is designed to reduce the
resistance that A drill faces during the construction process. The
pipes are designed to handle high torque while retaining a large
inside Diameter for superior drilling fluid flow so that the
threads will not deform.
Upsetting & thicking
Upsetting & thicking to the rods have improved The metallurgical
structure and enhanced the Impact toughness, that have ensured
comprehensive Mechanical properties and the friction weld seals Not
be broken.
Drill pipe quality control:
1. Before order to be confirmed, the raw material of pipe and tool
joint body should be booked from famous big steel enterprises in
China.
2. Checked by our QC staff and factory own laboratory.
3. Every drill pipe has nondestructive inspection , cleaned and
breach oil before packing.
4. Before delivery clients could send one QC or point the third
party to check the quality such SGS, BV or others.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core barrel, casing, drill rod, drill rig
and other drilling parts.They are used for mineral exploration,
geological drilling,
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
