AISI 4145H material,nc35-47,4 3/4''OD,2''ID, drill collar
Quick Details
- Place of Origin: China (Mainland)
- Brand Name: Senwell
- Type: Drill Collar
- Machine Type: Drilling Tool
- Certification: API
- Material: Alloy steel
- Processing Type: Forging
- Use: Well Drilling
- Standard: API
Packaging & Delivery
| Packaging Details: | packing is according to customers' requirements |
|---|---|
| Delivery Detail: | 10-30 Days |
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Usage: Drill collars are used to provide weight on bit so that drill are kept in tension. Especially drill collars can keep drill bits centralized and hole track by large rigidity
Material: AISI 4145H, 4145H Mod and Non-magnetic material.
Standard: API Spec7, API Spec7-1 and SY/T Standard. ALSO WE CAN SUPPLY DS-1 and NS-1 STANDARD.
Type: Slick drill collar
Spiral drill collar
Non-magnetic material.
Hard band: Arnco100XT, Arnco200XT and Arnco300XT; Botn1000, Botn3000, TCS8000, TCS-Titanium, Armacor M etc. Also we can make according to customers' requirements.
Size: OD: 3 1/8”~~11”; ID: 1 1/2”Min. Length: 10'~~31'
Detail specification
|
Standard size ,bores and connection for Drill Collar |
|||||||
|
Style of connection |
OD |
ID |
Length |
Bevel |
Bending strength Ratio |
||
|
mm |
in |
mm |
in |
mm |
diameter mm |
||
|
NC23-31 |
79.4 |
3 1/8 |
31.8 |
1 1/4 |
9150 |
76.2 |
2.57: 1 |
|
NC26-35(23/8IF) |
88.9 |
3 1/2 |
38.1 |
1 1/2 |
9150 |
82.9 |
2.42: 1 |
|
NC31-41(27/8IF) |
104.8 |
4 1/8 |
50.8 |
2 |
9150 |
100.4 |
2.43: 1 |
|
NC35-47 |
120.7 |
4 3/4 |
50.8 |
2 |
9150 |
114.7 |
2.58: 1 |
|
NC3850(31/2IF) |
127.0 |
5 |
57.2 |
2 1/4 |
9150 |
121.0 |
2.38: 1 |
|
NC44-60 |
152.4 |
6 |
57.2 |
2 1/4 |
9150or9450 |
144.5 |
2.49: 1 |
|
NC44-62 |
158.8 |
6 1/4 |
57.2 |
2 1/4 |
9150or9450 |
149.2 |
2.91: 1 |
|
NC46-62(4IF) |
158.8 |
6 1/4 |
71.4 |
2 13/16 |
9150or9450 |
150.0 |
2.63: 1 |
|
NC46-65(4IF) |
165.1 |
6 1/2 |
57.2 |
2 1/4 |
9150or9450 |
154.8 |
2.76: 1 |
|
NC46-65(4IF) |
165.1 |
6 1/2 |
71.4 |
2 13/16 |
9150or9450 |
154.8 |
3.05: 1 |
|
NC46-67(4IF) |
171.4 |
6 3/4 |
57.2 |
2 1/4 |
9150or9450 |
159.5 |
3.18: 1 |
|
NC50-67(41/2IF) |
171.4 |
6 3/4 |
71.4 |
2 13/16 |
9150or9450 |
159.5 |
2.37: 1 |
|
NC50-70(41/2IF) |
177.8 |
7 |
57.2 |
2 1/4 |
9150or9450 |
164.7 |
2.54: 1 |
|
NC50-70(41/2IF) |
177.8 |
7 |
71.4 |
2 13/16 |
9150or9450 |
164.7 |
2.73: 1 |
|
NC50-72(41/2IF) |
184.2 |
7 1/4 |
71.4 |
2 13/16 |
9150or9450 |
169.5 |
3.12: 1 |
|
NC50-77 |
196.8 |
7 3/4 |
71.4 |
2 13/16 |
9150or9450 |
185.3 |
2.70: 1 |
|
NC50-80 |
203.2 |
8 |
71.4 |
2 13/16 |
9150or9450 |
190.1 |
3.02: 1 |
|
6 5/8REG |
209.6 |
8 1/4 |
71.4 |
2 13/16 |
9150or9450 |
195.7 |
2.93: 1 |
|
NC61-90 |
228.6 |
9 |
71.4 |
2 13/16 |
9150or9450 |
212.7 |
3.17: 1 |
|
7 5/8REG |
241.3 |
9 1/2 |
76.2 |
3 |
9150or9450 |
223.8 |
2.81: 1 |
|
NC70-97 |
247.6 |
9 3/4 |
76.2 |
3 |
9150or9450 |
232.6 |
2.57: 1 |
|
NC70-100 |
254.0 |
10 |
76.2 |
3 |
9150or9450 |
237.3 |
2.81: 1 |
|
8 5/8REG |
279.4 |
11 |
76.2 |
3 |
9150or9450 |
266.7 |
2.84: 1 |
|
Mechanical Property of Drill Collar |
||||||
|
OD |
Yield Strength |
Tensile Strength |
Elongation |
Brinell Hardness HB |
Charpy |
|
|
mm |
in inch |
σ 0.2 Mpa |
σ b Mpa |
4% |
AKVJ |
|
|
79.4-171.4 |
3 1/8-6 3/4 |
≥758 |
≥965 |
≥13 |
285-341 |
≥54 |
|
177.8-279.4 |
7-11 |
≥689 |
≥930 |
|||
|
Stress Relief Groove for Thread Connection |
|||||
|
Style of Connection |
Length between Inner Thread Shoulder and the last Dens |
Diameter of Inner Thread |
Taper of the Hole nest to inner Thread |
Outer Thread Diameter |
Length between alternative Inner Thread Shoulder and Stress Relief Groove |
|
±1.59mm |
Dcb+0.40,-0 |
±20.83 |
DRG+0 -0.79 |
LRG +0 -3.18 |
|
|
mm |
mm/m |
mm |
mm |
||
|
NC35 |
82.6 |
82.15 |
166.67 |
82.15 |
85.73 |
|
NC38(3 1/2IF) |
88.9 |
88.11 |
166.67 |
89.3 |
92.08 |
|
NC44 |
101.6 |
101.6 |
166.67 |
106.36 |
104.78 |
|
NC46(4IF) |
101.6 |
106.76 |
166.67 |
109.93 |
104.78 |
|
NC50(4 1/2IF) |
101.6 |
117.48 |
166.67 |
120.65 |
104.78 |
|
NC56 |
114.3 |
121.84 |
250 |
134.14 |
117.48 |
|
NC61 |
127 |
132.95 |
250 |
149.25 |
130.18 |
|
NC70 |
139.7 |
152 |
250 |
171.05 |
142.88 |
|
6 5/8REG |
114.3 |
134.14 |
166.67 |
137.72 |
117.48 |
|
7 5/8REG |
120.7 |
133.35 |
250 |
162.72 |
123.83 |
|
8 5/8REG |
123.8 |
149.25 |
250 |
184.94 |
127 |
|
Note: The connection of NC23,26,31 and 2 3/8IF are without stress relief groove mould for their thin wall. |
|||||
More details of products,you are welcome to contact us by mail,thanks!
Standard exporting package by Senwell or according to customers' request
Shipping: China main port (Tianjin & Shanghai for selection)
Our Services
1.Advanced equipment and techniques
2. Customized design
3.High quality products and the best services to meet the strict needs of our customers
4Our business philosophy of "people-oriented, customer first and reliability first"
5. Long-term cooperative relationships with more than a hundred famous and large manufacturers in China
6. Successfully exported to Europe, America, the Middle East, South Africa and Southeast Asia
7.Warranty
SENWELL's main products cover 220 types and more than 1000 specifications presently. Our business covers non-magnetic products, drilling stem tools, fishing tools, jarring tools, coring tools, cementing tools, milling tools, well head tools, accessory tools, downhole tools, oil mining equipment, drill equipment, well control systems and .
Today, with strong technology and profuse experience, SENWELL not only provides a comprehensive range of oilfield tools, but also provides tools for machinery industry and has decades of production experience. Main products are sand casting, investment casting, forging, centrifugal casting and machining equipment.
We have a great deal of outstanding and seasoned employees. Relying on advanced equipment and techniques, with the scientific management theory and spirit of "seriously dealing with matters relating to works", we have established long-term cooperative relationships with more than a hundred famous and large manufacturers in China. Our company creates a steady-going and reliable environment for our product research, development and sale.
We are based on the tenet of "providing consistent high quality products and the best services to meet the strict needs of our customers; to create value for our customers and provide our customers with a return on their investment" and the business philosophy of "people-oriented, customer first and reliability first". Our products have been successfully exported to Europe, America, the Middle East, South Africa and Southeast Asia. In the international market, we have acquired an excellent reputation among the clients.
We welcome new and old customers from all over the world to contact us for future business relationships and achieving mutual success! To benefit from our strong OEM/ODM capabilities and considerate services, contact us today. We believe you will be better with our support!
Please get back to my email address or call me:
You can provide us the following information.
1.Size,
2.Outer diameter,
3.IADC Code
4.Quantity
If you have any question,please feel free to contact me at any time!
Contact : lily jing, 0086 29 85370919
Good deal: buying from seller
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