FOB Price
Get Latest Price|
1 Piece Minimum Order
Country:
China
Model No:
4145H
FOB Price:
Place of Origin:
China
Price for Minimum Order:
-
Minimum Order Quantity:
1 Piece
Packaging Detail:
Simple package suited sea shipment
Delivery Time:
35 days
Supplying Ability:
1000 Ton per Month
Payment Type:
Money Gram, Western Union, L/C, T/T
Product Group :
Contact Person Ms. judy
15 F no 3 building Futian Fortune plaza Shanghai east road zhengzhou city , Zhengzhou
Specifacation:
The drill collars are made of modified AISI ***5H chromium molybdenum alloy steel. These drill collar bars are full-length heat treated and water quenched to obtain ASTM A***0 mechanical properties. Full mechanical and chemical mill test certifications are supplied with all drill collars. These mill test certifications guarantee a hardness range of **5 to **1 BHN and an impact value of *0 ft.-lbs. at room temperature one inch below the surface.
To ensure close tolerance bores, all drill collar bars are trepanned then drifted to API specifications. Bar surface finish is “as rolled” which is original mill finish.
CONNECTIONS:
All connections are precision-machined to API specifications. API relief groove pin and bore back box stress relief are available on request. Thread roots are cold-worked to offer a greater resistance to fatigue. All connections are phosphated to minimize galling during makeup and applied with thread storage compound. Thread protectors are installed to ensure adequate joint protection during shipment.
SPIRAL DRILL COLLARS:
The spiral cut is added to a drill collar to prevent the likelihood of differential wall-sticking by reducing wall contact between the drill collar and the wall of the hole. The box end of the spiral collar is left uncut from *9 inches from box
shoulder and the pin end is left uncut *0 inches from the pin shoulder.
|
Connections |
OD mm |
ID mm |
Length mm |
|
|
NC****1 |
*9.4 |
*1.8 |
***0 |
|
|
NC****5 |
*8.9 |
*8.1 |
***0 |
|
|
NC****1 |
**4.8 |
*0.8 |
***0 or ***0 |
|
|
NC****7 |
**0.7 |
*0.8 |
**5 or ***0 |
|
|
NC****0 |
**7.0 |
*7.2 |
***0 or ***0 |
|
|
NC****0 |
**2.4 |
*7.2 |
***0 or ***0 |
|
|
NC****0 |
**2.4 |
*1.4 |
***0 or ***0 |
|
|
NC****2 |
**8.8 |
*7.2 |
***0 or ***0 |
|
|
NC****2 |
**8.8 |
*1.4 |
***0 or ***0 |
|
|
NC****5 |
**5.1 |
*7.2 |
***0 or ***0 |
|
|
NC****5 |
**5.1 |
*1.4 |
***0 or ***0 |
|
|
NC****7 |
**1.4 |
*7.2 |
***0 or ***0 |
|
|
NC****7 |
**1.4 |
*1.4 |
***0 or ***0 |
|
|
NC****0 |
**7.8 |
*7.2 |
***0 or ***0 |
|
|
NC****0 |
**7.8 |
*1.4 |
***0 or ***0 |
|
|
NC****2 |
**4.2 |
*1.4 |
***0 or ***0 |
|
|
NC****7 |
**6.8 |
*1.4 |
***0 or ***0 |
|
|
NC****0 |
**3.2 |
*1.4 |
***0 or ***0 |
|
|
6 5/8REG |
**9.6 |
*1.4 |
***0 or ***0 |
|
|
NC****0 |
**8.6 |
*1.4 |
***0 or ***0 |
|
|
7 5/8REG |
**1.3 |
*6.2 |
***0 or ***0 |
|
|
NC****7 |
**7.6 |
*6.2 |
***0 or ***0 |
|
|
NC*****0 |
**4.0 |
*6.2 |
***0 or ***0 |
|
|
8 5/8REG |
**9.4 |
*6.2 |
***0 or ***0 |
|
| Country: | China |
| Model No: | 4145H |
| FOB Price: | Get Latest Price |
| Place of Origin: | China |
| Price for Minimum Order: | - |
| Minimum Order Quantity: | 1 Piece |
| Packaging Detail: | Simple package suited sea shipment |
| Delivery Time: | 35 days |
| Supplying Ability: | 1000 Ton per Month |
| Payment Type: | Money Gram, Western Union, L/C, T/T |
| Product Group : | Drill collar |
