Drill collar
| Model Number:-- | Place of Origin:China |
| Price:-- | Packing:Container |
| Transport mode:By sea | Minimum Order:One |
Online Postings: Products (11), offers (11)
Country/Territory: China
Business Type: Manufacture
Number of Employees: 501 ~ 1000 People
The drill collars are the drilling tools used in oil well-drilling and geologic exploration. which manufactured according to API SPEC 7, which made of alloy steel and designed the different drill flutes according to the requirements, that’s prevent to Block the Bore.
Each drill collar is fully inspected by internal inspection dept. All data obtained are recorded on the inspection certificate furnished with each drill collar. API monogram, serial number, OD, ID, type and size of connections are stamped on recessed mill flats.
Standerd Size, Bores And Connection For Drill Collars
|
OD |
ID |
Length mm |
Bevel diameter mm |
Connection Style and Size |
Bending strength ratio | ||
|
in |
mm |
in |
mm | ||||
|
3-1/8 |
79.4 |
1-1/4 |
31.8 |
9150 |
76.2 |
NC23-31 |
2.57 ： 1 |
|
3-1/2 |
88.9 |
1-1/2 |
38.1 |
9150 |
82.9 |
NC26-35 |
2.42 ： 1 |
|
4-1/8 |
104.8 |
2 |
50.8 |
9150 |
100.4 |
NC31-41 |
2.43 ： 1 |
|
4-3/4 |
120.7 |
2 |
50.8 |
9150 |
114.7 |
NC35-47 |
2.58 ： 1 |
|
5 |
127 |
2-1/4 |
57.2 |
9150 |
121.0 |
NC38-50 |
2.38 ： 1 |
|
6 |
152.4 |
2-1/4 |
57.2 |
9150 或 9450 |
144.5 |
NC44-60 |
2.49 ： 1 |
|
6 |
152.4 |
2-13/16 |
71.4 |
9150 或 9450 |
144.5 |
NC44-60 |
2.84 ： 1 |
|
6-1/4 |
158.8 |
2-1/4 |
57.2 |
9150 或 9450 |
149.2 |
NC44-62 |
2.91 ： 1 |
|
6-1/4 |
158.8 |
2-13/16 |
71.4 |
9150 或 9450 |
150.0 |
NC46-62 |
2.63 ： 1 |
|
6-1/2 |
165.1 |
2-1/4 |
57.2 |
9150 或 9450 |
154.8 |
NC46-65 |
2.76 ： 1 |
|
6-1/2 |
165.1 |
2-13/16 |
71.4 |
9150 或 9450 |
154.8 |
NC46-65 |
3.05 ： 1 |
|
6-3/4 |
171.4 |
2-1/4 |
57.2 |
9150 或 9450 |
159.5 |
NC46-67 |
3.18 ： 1 |
|
6-3/4 |
171.4 |
2-13/16 |
71.4 |
9150 或 9450 |
159.5 |
NC50-67 |
2.37 ： 1 |
|
7 |
177.8 |
2-1/4 |
57.2 |
9150 或 9450 |
164.7 |
NC50-70 |
2.54 ： 1 |
|
7 |
177.8 |
2-13/16 |
71.4 |
9150 或 9450 |
164.7 |
NC50-70 |
2.73 ： 1 |
|
7-1/4 |
184.2 |
2-13/16 |
71.4 |
9150 或 9450 |
169.5 |
NC50-72 |
3.12 ： 1 |
|
7-3/4 |
196.8 |
2-13/16 |
71.4 |
9150 或 9450 |
185.3 |
NC56-77 |
2.70 ： 1 |
|
8 |
203.2 |
2-13/16 |
71.4 |
9150 或 9450 |
190.1 |
NC56-80 |
3.02 ： 1 |
|
8-1/4 |
209.6 |
2-13/16 |
71.4 |
9150 或 9450 |
195.7 |
65/8REG |
2.93 ： 1 |
|
9 |
228.6 |
2-13/16 |
71.4 |
9150 或 9450 |
212.7 |
NC61-90 |
3.17 ： 1 |
|
9-1/2 |
241.3 |
3 |
76.2 |
9150 或 9450 |
223.8 |
75/8REG |
2.81 ： 1 |
|
9-3/4 |
247.6 |
3 |
76.2 |
9150 或 9450 |
232.6 |
NC70-97 |
2.57 ： 1 |
|
10 |
254 |
3 |
76.2 |
9150 或 9450 |
237.3 |
NC70-100 |
2.81 ： 1 |
|
11 |
279.4 |
3 |
76.2 |
9150 或 9450 |
266.7 |
85/8REG |
2.84 ： 1 |
Mechanical Properties of Non-magnetic Drill Collar
Magnetic Properties of Non-magnetic Drill Collar: When MPS=1 ×105/4πA/m: Relative magnetic permeability μ r ≤ 1.1010 Magnetic Field Gradient △ B ≤ 0.05 μT | |||||||||||||||||||||||
Drill collar
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Tianjin Ganquan Group Corporation
[China]
City : Gegu Town
Province/State : Tianjin
Country/Region : China
