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Drill Pipe Supplier In China

Drill Pipe Supplier In China

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Drill Pipe

Drill Pipe Is A Major Player In Oil Extraction, And It Is Highly Resistant To Abrasion, Corrosion And Torque. The Normal Diameter Of the Drill Pipe Is 2^6 Inches And The Common Length Is About 9 Meters.

Balingsteel Can Produce High-Quality Drill Pipe In Accordance With API SPEC 5D, API SPEC 7-1, ISO 11960, And NACE MR0175.

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OUR PRODUCT

Recommended Products By Balingsteel

High Quality Drill Pipes

Balingsteel Offers You High-Quality Drill Pipes with the Following Advantages:

  • High-Quality Raw Materials: We Will Purchase High-Quality Steel Raw Materials with Strong Impact and Metal Fatigue Resistance While Using Sophisticated Processing Methods to Improve the Stability of the Finished Product.
  • Standardized Management: Combined with AI Digital Management, From Raw Materials to Production and Finally to the Finished Product, To Achieve Real-Time Control and Information Processing.
  • Strict Inspection and Extra Service: We Will Strictly Inspect the Raw Materials, Finished Pipe Body, Pipe Ends, Joints and Welds. At the Same Time, We Provide You with Additional Services Such as Internal Coating and Customized Packaging.
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High Quality Drill Pipes
Wide Range of Drill Pipe

Wide Range of Drill Pipe

Balingsteel Can Offer a Wide Range of Drill Pipes for Your Project as Follows:

  • OD:2 3/8″,2 7/8″,3 1/2″,4″,4 1/2″,5″,5 1/2″,5 7/8″,6 5/8″,7 5/8″,8 5/8″
  • Standards: API Spec 5DP, ISO 11961
  • Apply: Premium Connection, Super High-Strength, Non-slip-Crush, Slip-Protected, Flush Hole, Double-Walled, Arctic Service, Landing String, Sour Service and Heavy Weight Drill Pipe.

If You Are Still Looking for Drill Pipe Suppliers, Please Feel Free to Contact Us!

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Type of Drill Pipe

According to the Degree of Use of the Product, Balingsteel Categorizes Drill Pipes into the Following Three Types:

  1. N-Class Pipe (New Pipe): These Pipes Are New and Unused and Have the Best Performance. However, They Tend to Be the Most Expensive.
  2. P-Class Pipe (Premium Pipe): These Are Pipes That Have Been Used for Some Time and Can Be Interpreted as 90% New Drill Pipe. It Is the Most Cost-Effective and Frequently Used Product.
  3. C-Class Pipe (Used Pipe): This Is the Lowest Grade of Drill Pipe and Is Subdivided into C-1, C-2, And C-3 Grades. It Can Only Be Used in Some Easy Environments and It Is Very Cheap.
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Type of Drill Pipe
What Industries Are Drill Pipes Used In

What Industries Are Drill Pipes Used In?

Oil and Gas Industry:

  • This Is the Industry Where Drill Pipes Are Most Commonly Used to Form Standardized Oil and Gas Extraction Lines Through Drill Pipes + Casing + Tubing.

Mining Industry:

  • It Is Possible to Drill Underground Layers to Analyze the Distribution of Minerals.
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Data Sheet

  • Heavy Weight Drill Pipes Data
  • Drill Pipes Data
  • Sour Service Drill Pipes Data
  • Drill Collars Data
  • Connection Mechanical Characteristics

Table B.3 Heavy Weight Drill Pipes Data
Size Pipe Body
OD		 Pipe Body
ID		 Central Upset
OD		 Elevator Upset
OD		 RSC Type RSC
Bevel Dia.		 Tool Joint
OD		 Tool Joint
ID		 Drift
Size
OD ID Dc Dte Df D d
in in in in in in in in in
3 1/2 3 1/2 2  1/4 4.000 3.875 NC38 4.578 4 3/4 2  1/4 2.000
3 1/2 3 1/2 2  1/16 4.000 3.875 NC38 4.578 5 2  1/16 1.813
3 1/2 3 1/2 2 4.000 3.638 BLIDS®31 3.953 4 1/8 2 1.750
3 1/2 3 1/2 2  1/16 4.000 3.638 BLST®31 3.906 4 1/8 2  1/16 1.813
3 1/2 3 1/2 2  1/4 4.000 3.875 BLIDS®38 4.578 4 3/4 2  1/4 2.000
3 1/2 3 1/2 2  1/4 4.000 3.875 BLMT®38 4.578 4 3/4 2  1/4 2.000
4 4 2  9/16 4.500 4.188 NC40 5.016 5 1/4 2  9/16 2.313
4 4 2  9/16 4.500 4.188 BLIDS®40 5.016 5 1/4 2  9/16 2.313
4 4 2  9/16 4.500 4.188 BLMT®40 4.875 5 1/4 2  9/16 2.313
4 4 2  9/16 4.500 4.188 BLST®39 4.772 4 7/8 2  9/16 2.313
4 4 2  9/16 4.500 4.188 BLIST®39 4.786 4 7/8 2  9/16 2.313
4 1/2 4 1/2 2 11/16 5.000 4.688 NC46 5.719 6 1/4 2 11/16 2.438
4 1/2 4 1/2 2 11/16 5.000 4.688 BLIDS®40 5.016 5 1/4 2 11/16 2.438
4 1/2 4 1/2 2 11/16 5.000 4.688 BLST®40 5.063 5 1/4 2 11/16 2.438
5 5 3 5.500 5.125 NC50 6.063 6 5/8 3 2.750
5 5 3 5.500 5.125 BLIDS®50 6.063 6 5/8 3 2.750
5 1/2 5 1/2 4 6.000 5.688 5-1/2FH 6.719 7 4 3.750
5 1/2 5 1/2 3  1/4 6.000 5.688 5-1/2FH 6.719 7 3 1/4 3.000
5 1/2 5 1/2 3  1/4 6.000 5.688 BLIST®50 6.318 6 1/2 3 1/4 3.000
5 1/2 5 1/2 3  1/4 6.000 5.688 BLIDS®5-1/2FH 6.719 7 3 1/4 3.000
5 1/2 5 1/2 4 6.000 5.688 BLST®54 6.472 6 3/4 4 3.750
5 1/2 5 1/2 4 6.000 5.688 BLIST®54 6.469 6 5/8 4 3.750
5 7/8 5 7/8 4 6.375 6.000 BLIDS®5-1/2FH 6.719 7 1/4 4 3.750
5 7/8 5 7/8 4  1/8 6.375 6.000 BLST®57 6.764 7 4 1/8 3.875
5 7/8 5 7/8 4  1/4 6.375 6.000 BLIST®57 6.721 7 4 1/4 4.000
6 5/8 6 5/8 4  1/2 7.125 6.938 6-5/8FH 7.703 8 1/4 4 1/2 4.250
6 5/8 6 5/8 5 7.125 6.938 6-5/8FH 7.703 8 5 4.750
6 5/8 6 5/8 5 7.125 6.937 BLIDS®6-5/8 7.703 8 5 4.750

Table B.1 Drill Pipes Data
Pipe Body  OD Nominal Weight Upset Type Grade RSC Type Tool Joint
(in) (lb/ft) OD (in) ID (in)
2  3/8 6.65 EU E / X / G NC26 3  3/8 1  3/4
2  3/8 6.65 EU G / S / Z / V BLIDS®26 3  3/8 1  3/4
2  3/8 6.65 EU S / Z / V BLST®26 3  3/8 1  3/4
2  3/8 6.65 IU G / S BLIDS®23 3 1  3/8
2  3/8 6.65 IU G / S BLMT®2-3/8PAC 2  7/8 1  3/8
2  7/8 10.40 EU E NC31 4  1/8 2  1/8
2  7/8 10.40 EU X / G NC31 4  1/8 2
2  7/8 10.40 EU S NC31 4  3/8 1  5/8
2  7/8 10.40 EU G / S / Z / V BLIDS®31 4  1/8 2
2  7/8 10.40 EU G / S / Z / V BLST®31 4  1/8 2
2  7/8 10.40 IU E / X / G BLIDS®26 3  3/8 1  3/4
2  7/8 10.40 IU E / X / G BLMT®2-7/8PAC 3  1/8 1  1/2
2  7/8 10.40 IU E / X / G BLST®26 3  3/8 1  3/4
3  1/2 13.30 EU E NC38 4  3/4 2 11/16
3  1/2 13.30 EU X NC38 5 2  9/16
3  1/2 13.30 EU G NC38 5 2  7/16
3  1/2 13.30 EU S NC38 5 2  1/8
3  1/2 13.30 EU G BLIDS®38 5 2  9/16
3  1/2 13.30 EU S / Z BLIDS®38 5 2  7/16
3  1/2 13.30 EU V BLIDS®38 5 2  1/8
3  1/2 13.30 EU G BLMT®38 4  3/4 2 11/16
3  1/2 13.30 EU S / Z / V BLMT®38 4  3/4 2  9/16
3  1/2 13.30 EU G BLST®36 4  3/4 2  7/16
3  1/2 13.30 EU S / Z / V BLST®36 4  3/4 2  1/8
3  1/2 13.30 EU G BLST®39 4  7/8 2 13/16
3  1/2 13.30 EU S BLST®39 4  7/8 2 11/16
3  1/2 13.30 EU Z / V BLST®39 5 2  9/16
3  1/2 13.30 EU G BLIST®38 4  3/4 2 11/16
3  1/2 13.30 EU S / Z / V BLIST®38 4  3/4 2  9/16
3  1/2 13.30 EU G / S / Z / V BLIST®39 4  7/8 2 11/16
3  1/2 13.30 IU E / X / G BLIDS®31 4  1/8 2
3  1/2 13.30 IU S BLIDS®31 4  1/4 2
3  1/2 13.30 IU E BLST®31 4 2  1/4
3  1/2 13.30 IU X / G / S BLST®31 4  1/8 2
3  1/2 15.50 EU E NC38 5 2  9/16
3  1/2 15.50 EU X NC38 5 2  7/16
3  1/2 15.50 EU G NC38 5 2  1/8
3  1/2 15.50 EU S NC40 5 1/2 2  1/4
3  1/2 15.50 EU E / X BLIDS®38 5 2  9/16
3  1/2 15.50 EU G BLIDS®38 5 2  7/16
3  1/2 15.50 EU S / Z / V BLIDS®38 5 2  1/8
3  1/2 15.50 EU G BLMT®38 4 3/4 2  9/16
3  1/2 15.50 EU S / Z BLMT®38 4 7/8 2  7/16
3  1/2 15.50 EU V BLMT®38 5 2  1/4
3  1/2 15.50 EU X BLST®36 4 3/4 2  9/16
3  1/2 15.50 EU G BLST®36 4 3/4 2  7/16
3  1/2 15.50 EU S / Z / V BLST®36 4 3/4 2  1/8
3  1/2 15.50 EU G / S BLST®39 5 2  9/16
3  1/2 15.50 EU Z / V BLST®39 5 2  7/16
3  1/2 15.50 EU G BLIST®38 4 3/4 2  9/16
3  1/2 15.50 EU S / Z / V BLIST®38 4 3/4 2  7/16
3  1/2 15.50 EU G / S / Z / V BLIST®39 4 7/8 2  9/16
4 14.00 IU E NC40 5 1/4 2 13/16
4 14.00 IU X NC40 5 1/4 2 11/16
4 14.00 IU G NC40 5 1/2 2  7/16
4 14.00 IU S NC40 5 1/2 2
4 14.00 IU E / X BLIDS®38 5 2 11/16
4 14.00 IU G BLIDS®38 5 2  9/16
4 14.00 IU S BLIDS®38 5 2  7/16
4 14.00 IU E / X BLIDS®40 5 1/4 2 13/16
4 14.00 IU G BLIDS®40 5 1/4 2 11/16
4 14.00 IU S / Z / V BLIDS®40 5 1/4 2  9/16
4 14.00 IU G BLMT®38 5 2  9/16
4 14.00 IU S BLMT®38 5 2  7/16
4 14.00 IU G BLMT®40 5 1/4 2 11/16
4 14.00 IU S / Z / V BLMT®40 5 1/4 2  9/16
4 14.00 IU E / X BLST®36 4 3/4 2  9/16
4 14.00 IU G BLST®36 4 3/4 2  7/16
4 14.00 IU S BLST®36 4 3/4 2  1/8
4 14.00 IU E / X BLST®39 4 7/8 2 13/16
4 14.00 IU G BLST®39 4 7/8 2 11/16
4 14.00 IU S BLST®39 4 7/8 2  9/16
4 14.00 IU Z / V BLST®39 5 2  9/16
4 14.00 IU G BLIST®38 4 3/4 2  9/16
4 14.00 IU S BLIST®38 4 3/4 2  7/16
4 14.00 IU G BLIST®39 4 7/8 2 11/16
4 14.00 IU S / Z / V BLIST®39 4 7/8 2  9/16
4 15.70 IU E / X BLIDS®40 5 1/4 2 13/16
4 15.70 IU G BLIDS®40 5 1/4 2 11/16
4 15.70 IU S BLIDS®40 5 1/4 2  9/16
4 15.70 IU Z / V BLIDS®40 5 1/2 2  7/16
4 15.70 IU G BLMT®40 5 1/4 2 11/16
4 15.70 IU S / Z BLMT®40 5 1/4 2  9/16
4 15.70 IU V BLMT®40 5 1/4 2  7/16
4 15.70 IU G BLST®39 4 7/8 2  9/16
4 15.70 IU S / Z / V BLST®39 5 2  7/16
4 15.70 IU G / S BLST®40 5 1/4 2 11/16
4 15.70 IU Z / V BLST®40 5 3/8 2  9/16
4 15.70 IU G BLIST®39 4 7/8 2  9/16
4 15.70 IU S / Z / V BLIST®39 5 2  7/16
4  1/2 16.60 IEU E NC46 6  1/4 3  1/4
4  1/2 16.60 IEU X / G NC46 6 1/4 3
4  1/2 16.60 IEU S NC46 6 1/4 2  3/4
4  1/2 16.60 IEU E / X / G BLIDS®46 6 3  1/4
4  1/2 16.60 IEU S / Z / V BLIDS®46 6 3
4  1/2 16.60 IEU G / S / Z / V BLMT®46 6 3  1/4
4  1/2 16.60 IEU G / S / Z / V BLST®46 6 3  1/4
4  1/2 16.60 IEU G / S / Z / V BLIST®46 6 3  1/4
4  1/2 16.60 IEU G BLIDS®40 5 1/4 2 11/16
4  1/2 16.60 IEU S BLIDS®40 5 1/4 2  9/16
4  1/2 16.60 IEU G / S BLST®40 5 1/4 2 11/16
4  1/2 20.00 IEU E NC46 6 1/4 3
4  1/2 20.00 IEU X NC46 6 1/4 2  3/4
4  1/2 20.00 IEU G NC46 6 1/4 2  1/2
4  1/2 20.00 IEU S NC46 6 1/4 2  1/4
4  1/2 20.00 IEU E / X / G BLIDS®46 6 3
4  1/2 20.00 IEU S / Z / V BLIDS®46 6 2  3/4
4  1/2 20.00 IEU G / S / Z / V BLMT®46 6 3
4  1/2 20.00 IEU G / S / Z / V BLST®46 6 3
4  1/2 20.00 IEU G / S / Z / V BLIST®46 6 3
5 19.50 IEU E NC50 6 5/8 3  3/4
5 19.50 IEU X NC50 6 5/8 3  1/2
5 19.50 IEU G NC50 6 5/8 3  1/4
5 19.50 IEU S NC50 6 5/8 2  3/4
5 19.50 IEU E BLIDS®50 6 1/2 3  3/4
5 19.50 IEU X BLIDS®50 6 5/8 3  3/4
5 19.50 IEU G BLIDS®50 6 5/8 3  1/2
5 19.50 IEU S / Z / V BLIDS®50 6 5/8 3  1/4
5 19.50 IEU G / S / Z / V BLMT®50 6 5/8 3  1/2
5 19.50 IEU E / X BLST®46 6 3  1/2
5 19.50 IEU G BLST®46 6 3  1/4
5 19.50 IEU S / Z / V BLST®46 6 3
5 19.50 IEU E / X / G BLST®52 6 1/2 4
5 19.50 IEU S / Z / V BLST®52 6 1/2 3  3/4
5 19.50 IEU G / S / Z BLIST®46 6 3  1/2
5 19.50 IEU S / Z / V BLIST®46 6 1/4 3  1/4
5 19.50 IEU G BLIST®50 6 1/2 4
5 19.50 IEU S / Z / V BLIST®50 6 1/2 3  3/4
5 25.60 IEU E NC50 6 5/8 3  1/2
5 25.60 IEU X NC50 6 5/8 3
5 25.60 IEU G NC50 6 5/8 2  3/4
5 25.60 IEU S 5-1/2FH 7 1/4 3  1/4
5 25.60 IEU E BLIDS®50 6 1/2 3  3/4
5 25.60 IEU X / G BLIDS®50 6 5/8 3  1/2
5 25.60 IEU S / Z / V BLIDS®50 6 5/8 3
5 25.60 IEU G BLMT®50 6 5/8 3  1/2
5 25.60 IEU S / Z / V BLMT®50 6 5/8 3
5 25.60 IEU E BLST®46 6 3  1/2
5 25.60 IEU X BLST®46 6 3  1/4
5 25.60 IEU G BLST®46 6 1/4 3
5 25.60 IEU S BLST®46 6 1/4 2  3/4
5 25.60 IEU E / X / G BLST®52 6 5/8 3  3/4
5 25.60 IEU S / Z / V BLST®52 6 5/8 3  1/4
5 25.60 IEU G BLIST®50 6 5/8 3  3/4
5 25.60 IEU S / Z / V BLIST®50 6 5/8 3  1/4
5  1/2 21.90 IEU E 5-1/2FH 7 4
5  1/2 21.90 IEU X 5-1/2FH 7 3  3/4
5  1/2 21.90 IEU G 5-1/2FH 7 1/4 3  1/2
5  1/2 21.90 IEU S 5-1/2FH 7 1/2 3
5  1/2 21.90 IEU E / X / G / S / Z / V / U BLIDS®5-1/2FH 7 4
5  1/2 21.90 IEU G / S / Z / V / U BLMT®5-1/2FH 7 4
5  1/2 21.90 IEU E / X / G BLST®52 6 1/2 4
5  1/2 21.90 IEU S BLST®52 6 5/8 3  3/4
5  1/2 21.90 IEU E / X / G BLST®54 6 5/8 4  1/4
5  1/2 21.90 IEU S BLST®54 6 3/4 4
5  1/2 21.90 IEU Z / V BLST®54 6 7/8 3  7/8
5  1/2 21.90 IEU G / S / Z / V / U BLST®57 7 4  1/4
5  1/2 21.90 IEU G BLIST®54 6 5/8 4  1/4
5  1/2 21.90 IEU S / Z / V BLIST®54 6 3/4 4
5  1/2 21.90 IEU G / S / Z / V / U BLIST®57 7 4  1/4
5  1/2 24.70 IEU E 5-1/2FH 7 4
5  1/2 24.70 IEU X / G 5-1/2FH 7 1/4 3  1/2
5  1/2 24.70 IEU S 5-1/2FH 7 1/2 3
5  1/2 24.70 IEU E / X / G BLIDS®5-1/2FH 7 4
5  1/2 24.70 IEU S / Z / V / U BLIDS®5-1/2FH 7 1/4 3  3/4
5  1/2 24.70 IEU G / S BLMT®5-1/2FH 7 4
5  1/2 24.70 IEU Z / V / U BLMT®5-1/2FH 7 1/4 3  3/4
5  1/2 24.70 IEU G BLST®54 6 3/4 4
5  1/2 24.70 IEU S / Z / V BLST®54 6 7/8 3  3/4
5  1/2 24.70 IEU G / S / Z / V / U BLST®57 7 1/8 4
5  1/2 24.70 IEU G BLIST®54 6 3/4 4
5  1/2 24.70 IEU S / Z / V BLIST®54 6 7/8 3  3/4
5  1/2 24.70 IEU G / S / Z / V / U BLIST®57 7 1/8 4
5  7/8 23.40 IEU S / Z / V / U BLIDS®5-1/2FH 7 1/4 4
5  7/8 23.40 IEU S / Z / V / U BLMT®5-1/2FH 7 1/4 4
Notes:
Abbreviated steel grade: E – E75; X – X95; G – G105; S – S135; Z – BLDT-SH®Z140; V – BLDT-SH®V150; U – BLDT-SH®U165.
The tool joint OD and ID listed above are the dimensions commonly used in drilling. It can be customized according to the actual well
conditions and user requirements.

Table B.2 Sour Service Drill Pipes Data
Pipe Body  OD Nominal Weight Upset Type Grade RSC Type Tool Joint
(in) (lb/ft) OD (in) ID (in)
2  3/8 6.65 EU SS75 / SS95 / SS105 / BL110SS NC26 3  3/8 1  3/4
2  3/8 6.65 EU SS75 / SS95 / SS105 / BL110SS / BL120S BLIDS®26 3  3/8 1  3/4
2  3/8 6.65 EU SS105 / BL110SS / BL120S BLST®26 3  3/8 1  3/4
2  3/8 6.65 IU SS105 / BL110SS / BL120S BLIDS®23 3 1  3/8
2  3/8 6.65 IU SS105 / BL110SS / BL120S BLMT®2-3/8PAC 2  7/8 1  3/8
2  7/8 10.40 EU SS75 NC31 4  1/8 2  1/8
2  7/8 10.40 EU SS95 / SS105 / BL110SS NC31 4  1/8 2
2  7/8 10.40 EU SS105 / BL110SS / BL120S BLIDS®31 4  1/8 2
2  7/8 10.40 EU SS105 / BL110SS / BL120S BLST®31 4  1/8 2
2  7/8 10.40 IU SS75 / SS95 / SS105 / BL110SS BLIDS®26 3  3/8 1  3/4
2  7/8 10.40 IU SS75 / SS95 / SS105 / BL110SS BLMT®2-7/8PAC 3  1/8 1  1/2
2  7/8 10.40 IU SS75 / SS95 / SS105 / BL110SS BLST®26 3  3/8 1  3/4
3  1/2 13.30 EU SS75 NC38 4  3/4 2 11/16
3  1/2 13.30 EU SS95 NC38 5 2  9/16
3  1/2 13.30 EU SS105 / BL110SS NC38 5 2  7/16
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLIDS®38 5 2  9/16
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLMT®38 4  7/8 2  9/16
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLST®36 4  3/4 2  1/4
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLST®39 4  7/8 2 11/16
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLIST®38 4  3/4 2  9/16
3  1/2 13.30 EU SS105 / BL110SS / BL120S BLIST®39 4  7/8 2 11/16
3  1/2 13.30 IU SS75 / SS95 / SS105 / BL110SS BLIDS®31 4  1/8 2
3  1/2 13.30 IU SS75 / SS95 / SS105 / BL110SS BLST®31 4  1/8 2
3  1/2 15.50 EU SS75 NC38 5 2  9/16
3  1/2 15.50 EU SS95 NC38 5 2  7/16
3  1/2 15.50 EU SS105 / BL110SS NC38 5 2  1/8
3  1/2 15.50 EU SS105 / BL110SS / BL120S BLIDS®38 5 2  7/16
3  1/2 15.50 EU SS105 / BL110SS / BL120S BLMT®38 4 7/8 2  7/16
3  1/2 15.50 EU SS105 / BL110SS / BL120S BLST®36 4 3/4 2  1/8
3  1/2 15.50 EU SS105 / BL110SS / BL120S BLST®39 5 2  9/16
3  1/2 15.50 EU SS105 / BL110SS / BL120S BLIST®38 4 3/4 2  7/16
3  1/2 15.50 EU SS105 / BL110SS/ BL120S BLIST®39 4 7/8 2  9/16
4 14.00 IU SS75 NC40 5 1/4 2 13/16
4 14.00 IU SS95 NC40 5 1/4 2 11/16
4 14.00 IU SS105 / BL110SS NC40 5 1/2 2  7/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLIDS®38 5 2  9/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLIDS®40 5 1/4 2 11/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLMT®38 5 2  9/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLMT®40 5 1/4 2 11/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLST®36 4 3/4 2  1/8
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLST®39 4 7/8 2  9/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLIST®38 4 3/4 2  7/16
4 14.00 IU SS105 / BL110SS / BL120S / BL125S BLIST®39 4 7/8 2  9/16
4 15.70 IU SS105 / BL110SS / BL120S / BL125S BLIDS®40 5 1/4 2  9/16
4 15.70 IU SS105 / BL110SS / BL120S / BL125S BLMT®40 5 1/4 2  9/16
4 15.70 IU SS105 / BL110SS / BL120S / BL125S BLST®39 4 7/8 2  9/16
4 15.70 IU SS105 / BL110SS / BL120S / BL125S BLST®40 5 1/4 2 11/16
4 15.70 IU SS105 / BL110SS / BL120S / BL125S BLIST®39 4 7/8 2  9/16
4  1/2 16.60 IEU SS75 NC46 6 1/4 3  1/4
4  1/2 16.60 IEU SS95 / SS105 / BL110SS NC46 6 1/4 3
4  1/2 16.60 IEU BL120S / BL125S NC46 6 1/4 2  3/4
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®46 6 3  1/4
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLMT®46 6 3  1/4
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLST®46 6 3  1/4
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLIST®46 6 3  1/4
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®40 5 1/4 2  9/16
4  1/2 16.60 IEU SS105 / BL110SS / BL120S / BL125S BLST®40 5 1/4 2 11/16
4  1/2 20.00 IEU SS75 NC46 6 1/4 3
4  1/2 20.00 IEU SS95 NC46 6 1/4 2  3/4
4  1/2 20.00 IEU SS105 / BL110SS NC46 6 1/4 2  1/2
4  1/2 20.00 IEU BL120S / BL125S NC46 6 1/4 2  1/4
4  1/2 20.00 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®46 6 3
4  1/2 20.00 IEU SS105 / BL110SS / BL120S / BL125S BLMT®46 6 3
4  1/2 20.00 IEU SS105 / BL110SS / BL120S / BL125S BLST®46 6 3
4  1/2 20.00 IEU SS105 / BL110SS / BL120S / BL125S BLIST®46 6 3
5 19.50 IEU SS75 NC50 6 5/8 3  3/4
5 19.50 IEU SS95 NC50 6 5/8 3  1/2
5 19.50 IEU SS105 / BL110SS NC50 6 5/8 3  1/4
5 19.50 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®50 6 5/8 3  1/2
5 19.50 IEU SS105 / BL110SS / BL120S / BL125S BLMT®50 6 5/8 3  1/2
5 19.50 IEU SS105 / BL110SS / BL120S / BL125S BLST®46 6 3  1/4
5 19.50 IEU SS75 / SS95 / SS105 / BL110SS BLST®52 6 1/2 4
5 19.50 IEU BL120S / BL125S BLST®52 6 1/2 3  3/4
5 19.50 IEU SS105 / BL110SS / BL120S / BL125S BLIST®46 6 3  1/2
5 19.50 IEU SS105 / BL110SS / BL120S / BL125S BLIST®50 6 1/2 3  3/4
5 25.60 IEU SS75 NC50 6 5/8 3  1/2
5 25.60 IEU SS95 NC50 6 5/8 3
5 25.60 IEU SS105 / BL110SS NC50 6 5/8 2  3/4
5 25.60 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®50 6 5/8 3
5 25.60 IEU SS105 / BL110SS / BL120S / BL125S BLMT®50 6 5/8 3
5 25.60 IEU SS105 / BL110SS / BL120S / BL125S BLST®46 6 1/4 2  3/4
5 25.60 IEU SS105 / BL110SS / BL120S / BL125S BLST®52 6 5/8 3  3/8
5 25.60 IEU SS105 / BL110SS / BL120S / BL125S BLIST®50 6 5/8 3  1/2
5  1/2 21.90 IEU SS75 5-1/2FH 7 4
5  1/2 21.90 IEU SS95 5-1/2FH 7 3  3/4
5  1/2 21.90 IEU SS105 / BL110SS 5-1/2FH 7 1/4 3  1/2
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®5-1/2FH 7 4
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLMT®5-1/2FH 7 4
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLST®52 6 1/2 3  3/4
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLST®54 6 3/4 4
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLST®57 7 4  1/8
5  1/2 21.90 IEU SS105 / BL110SS/ BL120S / BL125S BLIST®54 6 5/8 4
5  1/2 21.90 IEU SS105 / BL110SS / BL120S / BL125S BLIST®57 7 4  1/8
5  1/2 24.70 IEU SS75 5-1/2FH 7 4
5  1/2 24.70 IEU SS95 / SS105 / BL110SS 5-1/2FH 7 1/4 3  1/2
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLIDS®5-1/2FH 7 4
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLMT®5-1/2FH 7 4
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLST®54 6 7/8 3  7/8
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLST®57 7 4
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLIST®54 6 3/4 3  7/8
5  1/2 24.70 IEU SS105 / BL110SS / BL120S / BL125S BLIST®57 7 4
5  7/8 23.40 IEU SS75 5-1/2FH 7 4
5  7/8 23.40 IEU SS95 / SS105 / BL110SS 5-1/2FH 7 1/4 3  1/2
5  7/8 23.40 IEU BL120S / BL125S BLIDS®5-1/2FH 7 4
5  7/8 23.40 IEU BL120S / BL125S BLMT®5-1/2FH 7 4
5  7/8 23.40 IEU BL120S / BL125S BLST®57 7 4  1/4
Note: Abbreviated steel grade
SS75 – BLDT-SS®75; SS95 – BLDT-SS®95; SS105 – BLDT-SS® 105; BL110SS – BLDT-SS® 110; BL120S – BLDT-S® 120;
BL125S – BLDT-S® 125.

Table B.4 Drill Collars Data
Size OD Bore RSC Type Length RSC
Bevel Dia.		 Reference Bending
Strength Ratio		 Drift
D d L Df BSR
in in in FT in in
3 1/8 3 1/8 1  1/4 NC23 30 3.000 2.57 1.375
3 1/2 3 1/2 1  1/2 NC26 30 3.266 2.42 1.625
4 1/8 4 1/8 2 NC31 30 or 31 3.953 2.43 2.125
4 3/4 4 3/4 2 NC35 30 or 31 4.516 2.58 2.125
5 5 2  1/4 NC38 30 or 31 4.766 2.38 2.375
6 6 2  1/4 NC44 30 or 31 5.688 2.49 2.375
6 6 2 13/16 NC44 30 or 31 5.688 2.84 2.938
6 1/4 6 1/4 2  1/4 NC44 30 or 31 5.875 2.91 2.375
6 1/4 6 1/4 2 13/16 NC46 30 or 31 5.906 2.63 2.938
6 1/2 6 1/2 2  1/4 NC46 30 or 31 6.094 2.76 2.375
6 1/2 6 1/2 2 13/16 NC46 30 or 31 6.094 3.05 2.938
6 3/4 6 3/4 2  1/4 NC46 30 or 31 6.281 3.18 2.375
7 7 2  1/4 NC50 30 or 31 6.484 2.54 2.375
7 7 2 13/16 NC50 30 or 31 6.484 2.73 2.938
7 1/4 7 1/4 2 13/16 NC50 30 or 31 6.672 3.12 2.938
7 3/4 7 3/4 2 13/16 NC56 30 or 31 7.297 2.70 2.938
8 8 2 13/16 NC56 30 or 31 7.484 3.02 2.938
8 1/4 8 1/4 2 13/16 6-5/8REG 30 or 31 7.703 2.93 2.938
9 9 2 13/16 NC61 30 or 31 8.375 3.17 2.938
9 1/2 9 1/2 3 7-5/8REG 30 or 31 8.813 2.81 3.125
9 3/4 9 3/4 3 NC70 30 or 31 9.156 2.57 3.125
10 10 3 NC70 30 or 31 9.344 2.81 3.125
11 11 3 8-5/8REG 30 or 31 10.500 2.84 3.125

Table B.5 BLIDS®  Connection Mechanical Characteristics    
    RSC Type Tool Joint OD
(in)		 Tool Joint ID
(in)		 Torsional Strength
(ft-lb)		 Tensile Strength
(lb)		 Recommended Makeup Torque
(ft-lb)
     BLIDS®23 3.000 1.375 6500 284200 3900
   BLIDS®26 3.375 1.750 8900 313700 5300
    BLIDS®31 4.375 1.625 24000 623800 14400
4.125 2.125 15300 447100 9200
4.125 2.000 17700 495700 10600
    BLIDS®38 5.000 2.563 26600 649200 16000
5.000 2.438 30000 708100 18000
5.000 2.125 37500 842400 22500
4.750 2.688 22800 587300 13700
4.750 2.563 25400 649200 15300
    BLIDS®40 5.500 2.000 51800 1080100 31100
5.250 2.813 29500 711600 17700
5.250 2.688 33400 776400 20100
5.250 2.563 37200 838300 22300
5.250 2.438 40300 897200 24200
    BLIDS®46 6.000 3.250 44000 901200 26400
6.000 3.000 54100 1048400 32500
6.000 2.750 63200 1183900 37900
    BLIDS®50 6.625 3.750 48800 939100 29300
6.625 3.500 61600 1109900 37000
6.625 3.250 73400 1269000 44000
6.625 3.000 84100 1416200 50500
6.625 2.750 93900 1551700 56300
6.500 3.750 48600 939100 29200
     BLIDS®5-1/2FH 7.500 3.250 117000 1778300 70200
7.500 3.000 128700 1925500 77200
7.250 3.750 89800 1448400 53900
7.250 3.625 96900 1535300 58100
7.250 3.500 103600 1619200 62200
7.000 4.000 74400 1265800 44700
7.000 3.875 82000 1358600 49200
     BLIDS®6-5/8FH 8.250 4.750 119700 1678100 71800
8.250 4.625 130200 1788600 78100
8.000 5.000 97200 1448400 58300
8.000 4.875 108300 1564800 65000
Note: All data is calculated based on SMYS 120ksi, and Makeup Torques are based on a friction factor of 1.0.
  Table B. 6 BLMT®  Connection Mechanical Characteristics
RSC Type Tool Joint OD
(in)		 Tool Joint ID
(in)		 Torsional Strength
(ft-lb)		 Tensile Strength
(lb)		 Recommended Makeup Torque
(ft-lb)
BLMT®2-3/8PAC 2.875 1.375 7000 238500 4200
BLMT®2-7/8PAC 3.125 1.500 8500 273000 5100
BLMT®38 5.000 2.563 29600 649200 17700
5.000 2.438 33000 708100 19800
5.000 2.250 37700 790900 22600
4.875 2.438 32800 708100 19700
4.750 2.688 25700 587300 15400
4.750 2.563 28400 649200 17000
BLMT®40 5.500 2.438 43800 897200 26300
5.250 2.688 36100 776400 21700
5.250 2.563 39900 838300 23900
5.250 2.438 43100 897200 25800
BLMT®46 6.000 3.250 47200 901200 28300
6.000 3.000 57300 1048400 34400
BLMT®50 6.625 3.500 66200 1109900 39700
6.625 3.250 78000 1269000 46800
6.625 3.000 88800 1416200 53300
6.500 3.500 65900 1109900 39600
BLMT®5-1/2FH 7.000 4.000 77200 1265800 46300
BLMT®5-1/2FH 7.000 3.875 84800 1358600 50900
Note: All data is calculated based on SMYS 120ksi, and Makeup Torques are based on a friction factor of 1.0.
Table B. 7  BLST®  Connection Mechanical Characteristics    
RSC Type Tool Joint OD
(in)		 Tool Joint ID
(in)		 Torsional Strength
(ft-lb)		 Tensile Strength
(lb)		 Recommended Makeup Torque
(ft-lb)
BLST®26 3.375 1.750 11100 296500 6600
BLST®31 4.125 2.125 19000 433900 11400
4.125 2.000 21500 482500 12900
4.000 2.250 16300 382300 9800
BLST®36 4.750 2.563 24400 502700 14700
4.750 2.438 27800 561600 16700
4.750 2.250 32400 644500 19500
4.750 2.125 35300 696000 21200
BLST®39 5.000 2.563 38900 723300 23300
5.000 2.438 41900 782200 25100
4.875 2.813 31100 596700 18600
4.875 2.688 34600 661500 20800
4.875 2.563 36300 723300 21800
BLST®40 5.375 2.563 49800 869300 29900
5.250 2.688 45800 807500 27500
5.250 2.563 49000 869300 29400
BLST®46 6.250 3.000 70100 1090700 42000
6.250 2.750 79600 1226200 47700
6.000 3.500 47800 784400 28700
6.000 3.250 59200 943400 35500
6.000 3.000 69600 1090700 41800
BLST®52 6.625 4.000 62300 917500 37400
6.625 3.750 76800 1100100 46100
6.625 3.500 90300 1270900 54200
6.500 4.125 54500 821700 32700
6.500 4.000 62100 917500 37300
BLST®54 6.875 3.750 98800 1333800 59300
6.750 4.125 75700 1055400 45400
6.750 4.000 83600 1151200 50100
6.625 4.250 67300 956800 40400
BLST®57 7.125 4.000 109800 1437800 65900
7.000 4.250 92900 1243400 55700
7.000 4.000 103000 1437800 61800
Note: All data is calculated based on SMYS 120ksi, and Makeup Torques are based on a friction factor of 1.0.
 Table B. 8  BLIST®  Connection Mechanical Characteristics
RSC Type Tool Joint OD
(in)		 Tool Joint ID
(in)		 Torsional Strength
(ft-lb)		 Tensile Strength
(lb)		 Recommended Makeup Torque
(ft-lb)
BLIST®38 4.875 2.438 34900 658500 20900
4.750 2.688 27700 537800 16600
4.750 2.563 31300 599600 18800
4.750 2.438 34800 658500 20900
BLIST®39 5.000 2.563 40800 729700 24500
4.875 2.688 35900 667800 21600
4.875 2.563 37600 729700 22600
BLIST®46 6.250 3.250 70200 1069300 42100
6.000 3.500 58100 910300 34900
6.000 3.250 65700 1069300 39400
BLIST®50 6.625 3.500 90900 1256300 54600
6.625 3.375 97200 1337300 58300
6.500 3.750 77300 1085500 46400
6.500 3.625 84100 1172400 50500
BLIST®54 6.750 4.000 86600 1155100 52000
6.750 3.875 94300 1247900 56600
6.625 4.250 70200 960700 42100
6.625 4.000 84300 1155100 50600
BLIST®57 7.000 4.250 94600 1208700 56800
7.000 4.000 107700 1403100 64600
Note: All data is calculated based on SMYS 120ksi, and Makeup Torques are based on a friction factor of 1.0.
Can You Provide Used Drill Pipe for Sale?

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How to Measure Drill Pipe?

We Measure the Dimensions of the Joints and Tubes of the Drill Pipe Using a Series of Specialized Testing Equipment, Such as Tape Measure, Vernier Calipers, Thickness Gauges, And so On. If You Find It Troublesome, I Can Test It for You or Commission a Third-Party Inspection for You.

How to Cut Drill Pipe?

Drill Pipe Can Not Be Cut Arbitrarily, If You Still Need to Cut, Please Get in Touch with Us in Time, We Will Remote Technical Guidance for Your Operation!

How Is Drill Pipe Manufactured?

  • Tool Joint Manufacturing Flow Chart：

Tool Joint Manufacturing Flow Chart

Round or Square——Cut into Billets——Forge——Normalizing——Blanking——Quenching——Tempering——Quality Inspection——Threading , Gauged, Cold Rolled——Phosphating——Phosphating

Tool Joint Manufacturing Flow Chart

  • Drill Pipe Body Manufacturing Flow Chart：

Drill Pipe Body Manufacturing Flow Chart

Green Tube Incoming Inspection——Upsetting——Heat Treatment——Straightening——Mechanical, Test, Ut and MPI——Pipe End Machining

Drill Pipe Body Manufacturing Flow Chart

  • Drill Pipe Welding Flow Chart：

Drill Pipe Welding Flow Chart

Tool Joint——Inertia Welding——Stress Relieve——Flash Removal——Quenching——Tempering——Weld Zone Inspection——Weighing, Length Measuring——Hardbanding——Internal Coating——Marking, Packing, Delivery

Drill Pipe Welding Flow Chart

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