73mm diameter R780 double-wall drill pipe 1000mm for reverse
circulation drilling
Product Description
1. Steel grade: E75 R780 G105 S135
2. Specification: 42-140mm
3. Thread: For Vermeer, Ditch witch, Drillto
We can manufacture all kinds of drill rod as per customer's
requirments.
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
|
The characteristics of "BAIWEI" drill rods
Two force regions
The thread of the non-digging drill pipe produced by the company
has two Force areas. This structure is designed to reduce the
resistance faced by drill A during the construction process. These
pipes are designed to withstand high torque while retaining a large
inner diameter for excellent drilling fluid flow, so that the
threads will not deform.
Optimal design
Drill rods through the dispersion of equal strength And stress
optimal design, can give full play to the Potential of drill
material.
Forged connector
The connector material is forged, has an improved material density,
and changes the fiber texture of the material, thereby greatly
improving the general mechanical properties of the material. The
end ensures that the thread is anti-corrosion, anti-sticking, and
improves the fatigue resistance of the joint surface.
Upsetting & thicking
The setting thickness and thickening of the bar have been improved.
The metallurgical structure and enhanced impact toughness ensure
that the comprehensive mechanical properties and friction welding
seal are not damaged.
Scope of application of double-wall drill pipe:
1. Suitable for water well drilling including complex formations.
2. Suitable for solid deposit drilling including complex strata.
3. It is a shale gas well drilling.
4. It is suitable for drilling in all formations where positive
circulation is difficult to drill
About us
LangFang Baiwei Drill Co.,Ltd located in the center of Beijing,
Tianjin and Hebei-Yongqing Industrial Area. Langfang Hebei.
Our company is a drilling tools manufacturing enterprisewith
integration of design, geological, well, double wall, oil, auger
and other special drilling pipes. And trenchless special drilling
tools such as pilot guide bits,swivels, reamers, sub saver,
pneumatic pipe rammer, pipe bursting machine.
We have specially invited domestic wellknown expert Mr.zhou
shengfeng as our general manager who engaged in the HDD drilling
tools and processing technology as technical consultant. A solid
research team lays the foundation of product quality, new product
development and after-sales service.
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.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our
products, our always make a serious inspection for all products and
raw materials in strict procedure.
We have obtained certificate of ISO9001*TongShun is professional
production of drilling tools, if you want to know more about our
products, please feel free to contact us.
