GETECH EQUIPMENTS INTERNATIONAL PVT. LTD.
(An ISO 9001-2008 Certified Company)

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Drill Collar

Drill Collar

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Product Details:

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Product Description

We have been highly appraised by our prominent clients for manufacturing and exporting qualitative Drill Collar. We manufacture this product range by making use of cutting-edge machines and optimum quality AISI 4145H chromium molybdenum alloy steel sourced from the certified vendors of the domain. We offer these collars in distinguished diameters, sizes and specifications to gratify the requirements of our precious clients. Drill Collar offered by us is widely used in drilling machines to provide less weight to drill bits and this also helps in keeping drill bits centralized and hole track by huge rigidity.

Features:

Rigid construction

Precise dimensions

Excellent durability

 

 

Specifications:

 

 
Connection
Drill Collar O.D.
Drill Collar I.D.
Length
 
 Shoulder Taper O.D.
Bending Strength Ratio
mm
in
mm
in
mm
mm
NC23-31
79.4
3 1/8
31.8
1 1/4
9150
76.2
2.57:1
NC26-35(2 3/8IF)
88.9
3 1/2
38.1
1 1/2
9150
82.9
2.42:1
NC31-41(2 7/8IF)
104.8
4 1/8
50.8
2
9150/ 9450
100.4
2.43：1
NC35-47
120.7
4 3/4
50.8
2
9150/ 9450
114.7
2.58：1
NC38-50(3 1/2IF)
127.0
5
57.2
2 1/4
9150/ 9450
121.0
2.38：1
NC44-60
152.4
6
57.2
2 1/4
9150/ 9450
144.5
2.49：1
NC44-60
152.4
6
71.4
2 13/16
9150/ 9450
144.5
2.84：1
NC44-62
158.8
6 1/4
57.2
2 1/4
9150/ 9450
149.2
2.91：1
NC46-62（4IF）
158.8
6 1/4
71.4
2 13/16
9150/ 9450
150.0
2.63：1
NC46-65（4IF）
165.1
6 1/2
57.2
2 1/4
9150/ 9450
154.8
2.76：1
NC46-65（4IF）
165.1
6 1/2
71.4
2 13/16
9150/ 9450
154.8
3.05：1
NC46-47（4IF）
171.4
6 3/4
57.2
2 1/4
9150/ 9450
159.5
3.18：1
NC50-67(4 1/2IF)
171.4
6 3/4
71.4
2 13/16
9150/ 9450
159.5
2.37：1
NC50-70(4 1/2IF)
177.8
7
57.2
2 1/4
9150/ 9450
164.7
2.54：1
NC50-70(4 1/2IF)
177.8
7
71.4
2 13/16
9150/ 9450
164.7
2.73：1
NC50-72(4 1/2IF)
184.2
7 1/4
71.4
2 13/16
9150/ 9450
169.5
3.12：1
NC56-77
196.8
7 3/4
71.4
2 13/16
9150/ 9450
185.3
2.70：1
NC56-80
203.2
8
71.4
2 13/16
9150/ 9450
190.1
3.02：1
6 5/8REG
209.6
8 1/4
 71.4
2 13/16
9150/ 9450
195.7
2.93：1
NC61-90
228.6
9
71.4
2 13/16
9150/ 9450
212.7
3.17：1
7 5/8REG
241.3
9 1/2
76.2
3
9150/ 9450
223.8
2.81：1
NC70-97
247.6
9 3/4
76.2
3
9150/ 9450
232.6
2.57：1
NC70-100
254.0
10
76.2
3
9150/ 9450
237.3
2.81：1
8 5/8REG
279.4
11
76.2
3
9150/ 9450
266.7
2.84：1

 

Comments:
Connection:IF- Internal Flush; FH- Full Hole; REG- Regular; NC- Numerical Connection
 
 
 
 

Type:

 

Standard drill collars

Standard drill collars are made of 4145H chromium molybdenum alloy steel. Residual elements such as sulfur and phosphorus are reduced during the steelmaking process that make the kind of material with high physical properties.

 

 


Connection:


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.

 


Note:


When inquiring on drill collars, please specify info. below:
1) Outside diameter, bore and length;
2) Size and type of connection: each end of collar and special joint features;
3) Slick, Spiral or Non-Magnetic ;
4) Other special features: slip and elevator recesses and/or hard band type.

 

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