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XI'AN KINGWELL OILFIELD MACHINERY CO.,LTD
XI'AN KINGWELL OILFIELD MACHINERY CO.,LTD  

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  • API 7-1 Standard Drill Collar
  • API 7-1 Standard Drill Collar
  • API 7-1 Standard Drill Collar
  • API 7-1 Standard Drill Collar
Enlarge API 7-1 Standard Drill Collar

API 7-1 Standard Drill Collar 

Price: 1.0 USD 
Payment Terms: T/T 
Place of Origin: Shaanxi, China (Mainland) 
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Product Detail

Model No.: API 7-1 drilling tools/down...
Production Capacity: 500 Piece/Pieces per month
Delivery Date: 10~30 days
Certification: API
Material: AISI 4145H
Connection: NC23-31,NC31-41,NC35-47,NC3...
Condition: new
Means of Transport: Ocean,Land,Air
Packing: bundled
Machine Type: Drilling Tool
Use: Well Drilling
Length: 9150 or 9450 mm
OD: 79.4 - 279.4 mm
Manufacture technique: Hot forged and heat treated

Material: 4145H, 4145H Mod, Non Magnetic
Type: Slick Drill Collar, Spiral Drill Collar
Size: 3 1/8" - 14"
Hardbanding: ANRCO 100 XT, 200XT, 300XT.

Drill collar

 

1.Meeting to API7-1

2.OD:3 1/8",3 1/2",4 1/8",4 3/4",5",6",,6 1/4',6 1/2",6 3/4",7",7 1/4",7 3/4",8",8 1/4",9",10",11"

3.Length:5"-31"

4.Type: slick drill collar,spiral drill collar,spiral drill collar with elevator groove and slip groove and non-magnetic drill collar

5.Material:ANSI4137 ,4145H,4145HM alloy steel.


Standard Drill Collar

Drill Collar Number*

Outside Diameter

Inside Diameter

Length

Approximate Weight

Bevel Diametre

 

 Bending Strength Ratio

in.

in.

ft  ±6in

lb/ft

NC 23-31

3 1/8

1 1/2

30

22

76.2

2.57:1

NC 26-35 (2-3/8 IF)

3 1/2

1 1/2

30

27

82.9

2.42:1

NC 31-41 (2-7/8 IF)

4 1/8

2

30 or 31

34

100.4

2.43:1

NC 35-47

4 3/4

2

30 or 31

47

114.7

2.58:1

NC 38-50 (3-1/2 IF)

5

2 1/4

30 or 31

54

121

2.38:1

NC 44-60

6

2 1/4

30 or 31

83

144.5

2.49:1

NC 44-60

6

2 13/16

30 or 31

76

144.5

2.84:1

NC 44-62

6 1/4

2 1/4

30 or 31

91

149.2

2.91:1

NC 46-62 (4 IF)

6 1/4

2 13/16

30 or 31

84

150

2.63:1

NC 46-65 (4 IF)

6 1/2

2 1/4

30 or 31

100

154.8

2.76:1

NC 46-65 (4 IF)

6 1/2

2 13/16

30 or 31

93

154.8

3.05:1

NC 46-67 (4 IF)

6 3/4

2 1/4

30 or 31

109

159.5

3.18:1

NC 50-70 (4-1/2 IF)

7

2 1/4

30 or 31

118

164.7

2.54:1

NC 50-70 (4-1/2 IF)

7 1/4

2 13/16

30 or 31

111

169.5

2.73:1

NC 50-72 (4-1/2 IF)

7 3/4

2 13/16

30 or 31

120

185.3

3.12:1

NC 56-77

8

2 13/16

30 or 31

140

190.1

2.70:1

NC 56-80

8 1/4

2 13/16

30 or 31

151

195.7

3.02:1

6-5/8 API Reg

9

2 13/16

30 or 31

162

212.6

2.93:1

NC 61-90

9 1/2

3

30 or 31

196

223.8

3.17:1

7-5/8 API Reg

9 3/4

3

30 or 31

217

232.8

2.81:1

NC 70-97

10

3

30 or 31

230

237.3

2.57:1

NC 70-100

10

3

30 or 31

243

237.3

2.81:1

*The number connection (NC ) is an API connection with the V- .065 thread form with a V- .038R thread root radius. 

The first two digits are the pitch diameter of the thread and the last two digits are the outside diameter of the drill collar.

 

Spiral Drill Collar

Technical specifications and parameters

Outside Diameter

Cutting depth

lead±25.4

mm

in

A(mm)

B(mm)

mm

86

3 3/8

3.5±0.79


679

98.4

3 7/8

4.0±0.79


914

101.6~111.1

4~4 1/8

4.8±0.79


914

114.3~130.2

4 1/2~5 1/8

5.6±0.79


965

133.4~146.1

5 1/4~5 3/4

6.4±0.79


1067

149.2~161.9

5 7/8~6 3/8

7.1±1.59


1067

165.1~177.8

6 1/2~7

7.9±1.59


1168

181.0~200.0

7 1/8~7 7/8

8.7±1.59

5.6±0.79

1626

203.2~225.4

8~8 7/8

9.5±1.59

6.4±0.79

1727

228.6~250.8

9~9 7/8

10.3±2.37

7.1±1.59

1829

254.0~276.2

10~10 7/8

11.1±2.37

7.9±1.59

1930

279.4

11

11.9±2.37

8.7±1.59

2032

 

 

Our main product drilling tools include: drill pipe, drill collar, heavy weight drill pipe, stabilizer, etc.


Company introduction

Xi'an KINGWELL OILFIELD MACHINERY Co., Ltd. (KINGWELL) is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provides complete solutions.

With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, drilling tools, DST tools and Solid control products.

KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation; our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices. Our products have been exported to Europe, American and Middle East.



Mr. jerry wang
 Mr. jerry wang
Sales Manager
Tel: 86-29-88601839
Fax: 86-29-88601839
Mobile: 86- 187 2932 9559
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XI'AN KINGWELL OILFIELD MACHINERY CO.,LTD [China (Mainland)]


Business Type:Manufacturer, Trading Company, Agent, Distributor/Wholesaler, Service, Association, Other
City: Xi'an
Province/State: Shaanxi
Country/Region: China (Mainland)

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