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Jiyuan Zhongzhong Heavy Machinery Manufacture Co., Ltd.

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 Jiyuan Zhongzhong Heavy Machinery Manufacture Co., Ltd.

China

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Current:Home » Product Categories » » API Drill Collar Spiral Drill Collar--AISI 4145H Alloy steel and Low-carbon Steel
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API Drill Collar Spiral Drill Collar--AISI 4145H Alloy steel and Low-carbon Steel
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Product:
Brand: aa 
Price: 5000.00USD/ 
MOQ: 1  
Total supply:
Delivery time: From the date of payment from the buyer within days of delivery
update time: 2020-02-13 01:00  Valid to:Long-term effective
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Spiral Drill Collar

 

Product Information:

 The Petroleum drilling tools of Zhongzhong's mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.

 The details of Spiral drill collar as follows,

1. Material: AISI 4145H Alloy steel, Non magnetic steel, etc.

2. Shape: It is a kind of drill collar which adds three dextrogyrate spiral groove on the outer circle of ordinary drill collar when processing, and the purpose is to reduce the area of contact and friction with the well wall, which can effectively prevent the pressure sticking. 

3. Use: It is mainly used between the drill head and the drill pipe, so that it can make the drill head work reposefully and keep right trace by providing the pressure and weight for drill head.

4. Standard: API Spec 7-1 or SY/T5144 Standard.

5. Inspection&TestWhen producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.

6.Specification: 

Connections

OD

ID

Length 

mm

Bevel Diameter Df  mm

Reference Bending Strength Ratio

mm

in

mm

in

NC23-31

79.4

3 1/8

31.8

1 1/4

9150

76.2

2.57:1

NC26-35

88.9

3 1/2

38.1

1 1/2

9150

82.9

2.42:1

NC31-41

104.8

4 1/8

50.8

2

9150 or 9450

100.4

2.43:1

NC35-47

120.7

4 3/4

50.8

2

915 or 9450

114.7

2.58:1

NC38-50

127.0

5

57.2

2 1/4

9150 or 9450

121.0

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

6

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

NC46-62

158.8

6 1/4

71.4

2 13/16

9150 or 9450

150.0

2.63:1

NC46-65

165.1

6 1/2

57.2

2 1/4

9150 or 9450

154.8

2.76:1

NC46-65

165.1

6 1/2

71.4

2 13/16

9150 or 9450

154.8

3.05:1

NC46-67

171.4

6 3/4

57.2

2 1/4

9150 or 9450

159.5

3.18:1

NC50-67

171.4

6 3/4

71.4

2 13/16

9150 or 9450

159.5

2.37:1

NC50-70

177.8

7

57.2

2 1/4

9150 or 9450

164.7

2.54:1

NC50-70

177.8

7

71.4

2 13/16

9150 or 9450

164.7

2.73:1

NC50-72

184.2

7 1/4

71.4

2 13/16

9150 or 9450

169.5

3.12:1

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 5/8REG

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

254.0

10

76.2

3

9150 or 9450

237.3

2.81:1

8 5/8REG

279.4

11

76.2

3

9150 or 9450

266.7

2.84:1

 

7.Mechanical properties:

OD

Yield Strengh σ0.2

MPa

Tensile Strength

σb

MPa

 

    Elongation

        δ4 %

             mm

         in

 79.4-171.4

   3 1/8-6 3/4

              ≥758

              ≥965

               ≥13

177.8-279.4

7-11

≥689

≥930

 

 

 

 

 

 

 

8.Product Advantages

     1.Product designs with customer's demand.

     2.Strong machining &heat treatment abilities.

     3.Strict quality control

     4.Competitive price and high quality.

     5.Best service.

     6.Prompt delivery.

 

 

 

If any question,you can feel free to contact us! And your inquiry will be highly welcomed!

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