Bienes de equipo
AISI 4145H material,nc35-47,4 3/4''OD,2''ID, drill collar
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Packaging Details: | packing is according to customers' requirements |
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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
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!
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