Regular Members

Shaanxi FYPE Rigid Machinery Co.,Ltd.

Machinery

Product category
  • N/A
Search
 
Friends links
Supplier Homepage > Products > API 7-1 Spiral, Non-magnetic Drill Collar For Sale, Tool Joint, Crossover
API 7-1 Spiral, Non-magnetic Drill Collar For Sale, Tool Joint, Crossover
Click on the image to check the artwork
product: view count: 170API 7-1 Spiral, Non-magnetic Drill Collar For Sale, Tool Joint, Crossover 
unit price: Negotiable
min amount:
amount:
period for delivery: Consignment Deadline days
Expiry date: Long Effective
last update: 2017-10-06 07:12
  enquiry
detailed
API 7-1 Spiral, Non-magnetic Drill Collar for Sale, Tool Joint, Crossover

Drill collar

Description:

Drill collars are heavy, stiff steel tubulars. They are used at the bottom of a BHA to provide weight on bit and rigidity.The primary function of the drill collars is to provide sufficient WOB (Weight on bit). The weight of the collars also ensures that the drill pipe is kept in tension to prevent buckling.

Standard: API 7-1, GOST, NS-1

Material: AISI 4145H, AISI 4145 H MOD, Non-mag material

Size:2-7”~11”

Drill collar production flow:

 1.  Raw material inspection

 2.  Quenching and tempering

 3.  Properties inspection

 4.  Straightening

 5.  Trepanning

 6.  NDT

 7.  O.D.Turning

 8.  Threading and cold working of thread roots

 9.  Spiral grooves(Upon request)

 10. Thread Phosphorization

 11. Surface treatment

 12. Packing

Technical Paramete:

Drill collar


Products Range

2-7/8”~11



Material

AISII   4145HM, Non-Mag


Type   of end finish

Slick,   spiral




Drill   collar No.


OD


Bore Dia


B.S.R


L, ft ±6in

Tensile   strength

Impact   Value


Hardness




Y.S.



T.S.



Elongation



D   Inch

(mm)


d   Inch

(mm)


Round   No.


Ft

Impact   value


Brinel


NC23-31

3-1/8

(79.4)

1-1/4

(31.8)

2.57:1

30













Min.110000psi

(≥758Mpa)













Min.140000psi

(≥965Mpa)













Min.13%













Min.59ft.lb

(≥80j)













285~341


NC26-35

(2-3/8   IF)

3-12

(88.9)

1-1/2

(38.1)

2.42:1

30


NC31-41

(2-7/8   IF)

4-1/4

(104.8)

2(50.8)

2.43:1

30/31


NC35-47

4-3/4

(120.7)

2(50.8)

2.58:1

30/31


NC38-50

(3-1/2   IF)

5(127.0)

2-1/4

(57.2)

2.38:1

30/31


NC44-60

6(152.4)

2-1/4

(57.2)

2.49:1

30/31


NC44-60

6(152.4)

2-13/16

(71.4)

2.84:1

30/31


NC44-62

6-1/4

(158.8)

2-1/4

(57.2)

2.91:1

30/31


NC46-62

(4   IF)

6-1/4

(158.8)

2-13/16

(71.4)

2.63:1

30/31


NC46-65

(4 IF)

6-1/2

(165.1)

2-1/4

(57.2)

2.76:1

30/31


NC46-65

(4   IF)

6-1/2

(165.1)

2-13/16

(71.4)

3.05:1

30/31


NC46-67

(4   IF)

6-3/4

(171.5)

2-1/4

(57.2)

3.18:1

30/31


NC50-67

(4-1/2   IF)

6-3/4

(171.5)

2-13/16

(71.4)

2.37:1

30/31


NC50-70

(4-1/2   IF)

7(177.8)

2-1/4

(57.2)

2.54:1

30/31











Min.100000psi

(≥758Mpa)











Min.135000psi

(≥965Mpa)











Min.13%











Min.59ft.lb

(≥80j)











285~341


NC50-70

(4-1/2   IF)

7(177.8)

2-13/16

(71.4)

2.73:1

30/31


NC50-72

(4-1/2   IF)

7-1/4

(184.2)

2-13/16

(71.4)

3.12:1

30/31


NC56-77

7-3/4

(196.9)

2-13/16

(71.4)

2.70:1

30/31


NC56-80

8(203.2)

2-13/16

(71.4)

3.02:1

30/31


6-5/8

REG

8-1/4

(209.6)

2-13/16

(71.4)

2.93:1

30/31


NC61-90

9(228.6)

2-13/16

(71.4)

3.17:1

30/31


7-5/8

REG

9-1/2

(241.3)

3(76.2)

2.81:1

30/31


NC70-97

9-3/4

(247.7)

3(76.2)

2.57:1

30/31


NC70-100

10(254.0)

3(76.2)

2.81:1

30/31


8-5/8

REG

11(279.4)

3(76.2)

2.84:1

30/31


 


FYPE Rigid Machinery is one of the leading China manufacturers and suppliers in oil and gas industry. Our company now has API 7-1 spiral, non-magnetic drill collar for sale, tool joint, crossover for sale which is featured by high quality and competitive price. Offering quick delivery, we warmly welcome you to buy products of different sizes and widely used in oilfield from our factory.

inquiry list