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Drill pipe
DRILL COLLAR-STANDARD AND SPIRAL
- Type:Drill pipe
- CAS No:
- Qty in 20' FCL:
- Min. Order:
- Packaging:
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Number and connection table
Outside Diameter
Inside Diameter
Length
mm
Belvel Diameter
Mm
Bending
Strength
Ratio
mm
In
mm
in
NC23-31
79.4
3 1/8
31.8
1 1/2
9150
76.2
2.57:1
NC26-35(2 3/8 IF)
88.9
3 1/2
38.1
1 1/2
9150
82.9
2.42:1
NC31-41(2 7/8 IF)
104.8
4 1/8
50.8
2
9150
100.4
2.43:1
NC35-47
120.6
4 3/4
50.8
2
9150
114.7
2.58:1
NC38-50(3 1/2IF)
127
5
57.2
2 1/4
9150
121
2.38:1
NC44-60
152.4
6
57.2
2 1/4
9150 or 9450
144.5
2.49:1
NC44-60
152.4
5
71.4
2 13/16
9150 or 9450
144.5
2.84:1
NC44-62
158.8
6 1/4
57.2
2 1/4
9150 or 9450
149.2
2.91:1
NC44-62(4IF)
158.8
6 1/2
71.4
2 13/16
9150 or 9450
150
2.63:1
NC44-65(4IF)
165.1
6 1/2
57.2
2 1/4
9150 or 9450
154.8
2.76:1
NC44-65(4IF)
165.1
6 1/2
71.4
2 13/16
9150 or 9450
154.8
3.05:1
NC44-67(4IF)
171.4
6 3/4
57.2
2 1/4
9150 or 9450
159.5
3.18:1
NC50-672(4 1/2IF)
171.4
6 3/4
71.4
2 13/16
9150 or 9450
159.5
2.37:1
NC50-70(4 1/2IF)
177.8
7
57.2
2 1/4
9150 or 9450
164.7
2.54:1
NC50-70(4 1/2IF)
177.8
7
71.4
2 13/16
9150 or 9450
164.7
2.73:1
NC50-72(4 1/2IF)
184.2
7 1/4
71.4
2 13/16
9150 or 9450
169.5
3.21:1
NC56-77
196.8
7 3/4
71.4
2 13/16
9150 or 9450
185.3
2.70:1
NC56-80
203.2
8
71.4
2 13/16
9150 or 9450
190.1
3.02:1
6 5/8REG
209.6
8 1/4
71.4
2 13/16
9150 or 9450
195.7
2.93:1
NC61-90
228.6
9
71.4
2 13/16
9150 or 9450
212.7
3.17:1
7 5/8 REG
241.3
9 1/2
76.2
3
9150 or 9450
223.8
2.81:1
NC70-97
247.6
9 3/4
76.2
3
9150 or 9450
232.6
2.57:1
NC70-100
254
10
76.2
3
9150 or 9450
237.3
2.81:1
8 5/8 REG
279.4
11
76.2
3
9150 or 9450
266.7
2.84:1
Slips and elevator grooves can be produced upon the customers' requirement.
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Drill Collar is the basic component in the BHA which provides weight on the bit for drilling and keeps the drillsting in tension.
TIANHE Drill Collar has been approved by the NS-1 certification, it is manufactured from 4145H modified quenched and tempered steel, strict metallurgical specifications are followed to insure that full length heat treating produces a consistent maximum depth of hardness.
Features and Benefits
●A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed at evenly distributed 16 points in any sections at room temperature;
● Connections are completed（phosphate coated）to protect them from the elements after machining and to help prevent galling upon initial make-up;
● Thread roots are cold rolled on API and H-90 connections;
● Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections When ordering Please specify;
● Drill collar OD and ID;
● Overall length;
● Connections required (size and type);
● Special features desired, for example:
Slick or Spiral;
Stress Relief Features;
Slip and/or Elevator Recess;
Hardbanding;
- The industry today faces a major risk of Time and Resource bound execution of Projects. With its unique and Client centric approach towards Project Management, OMCI RIG TECH provides its Clients with the means to completely eliminate this Risk. What differentiates us from others is our willingness to walk-the-extra-step to meet and surpass the Client’s expectations. Project management for us is about Execution and making it happen. The industry today faces a major risk of Time and Resource bound execution of Projects. With its unique and Client centric approach towards Project Management, OMCI RIG TECH provides its Clients with the means to completely eliminate this Risk. What differentiates us from others is our willingness to walk-the-extra-step to meet and surpass the Client’s expectations. Project management for us is about Execution and making it happen. The industry today faces a major risk of Time and Resource bound execution of Projects. With its unique and Client centric approach towards Project Management, OMCI RIG TECH provides its Clients with the means to completely eliminate this Risk. What differentiates us from others is our willingness to walk-the-extra-step to meet and surpass the Client’s expectations. Project management for us is about Execution and making it happen.
- The industry today faces a major risk of Time and Resource bound execution of Projects. With its unique and Client centric approach towards Project Management, OMCI RIG TECH provides its Clients with the means to completely eliminate this Risk. What differentiates us from others is our willingness to walk-the-extra-step to meet and surpass the Client’s expectations. Project management for us is about Execution and making it happen. The industry today faces a major risk of Time and Resource bound execution of Projects. With its unique and Client centric approach towards Project Management, OMCI RIG TECH provides its Clients with the means to completely eliminate this Risk. What differentiates us from others is our willingness to walk-the-extra-step to meet and surpass the Client’s expectations. Project management for us is about Execution and making it happen.
