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Heavy Weight Drill Pipe 4 1/2inch 41.8 Lb FT Nc-46 Connection

China Heavy Weight Drill Pipe 4 1/2inch 41.8 Lb FT Nc-46 Connection, Find details about China Heavy Weight Drill Pipe, Heavy Weight Drill Pipe 4 1/2inch from Heavy Weight Drill Pipe 4 1/2inch 41.8 Lb FT Nc-46 Connection

Model NO.
4 1/2inch
Model
Impregnated Diamond Core Bits
Drilling
Exploration Core Drilling
Drills
Wireline Core Drilling
Mining
Australia Mining
Exploration
Australia Exploration
Model No
Mining Exploration Core Drilling
Use
Africa Mining
Applications
Copper Mining Drilling
Trademark
ROSCHEN
Transport Package
Bundle
Specification
steel
Origin
China
HS Code
843143220
Model NO.
4 1/2inch
Model
Impregnated Diamond Core Bits
Drilling
Exploration Core Drilling
Drills
Wireline Core Drilling
Mining
Australia Mining
Exploration
Australia Exploration
Model No
Mining Exploration Core Drilling
Use
Africa Mining
Applications
Copper Mining Drilling
Trademark
ROSCHEN
Transport Package
Bundle
Specification
steel
Origin
China
HS Code
843143220

Heavy Weight Drill Pipe 4 1/2", 41.8 Lb  ft, NC-46 Connection
 
HWDP is used as a transitional stiffness section, typically between the stiff and rigid drill collars and the relatively light and flexible drill pipe joints to reduce fatigue failures directly above the bottom hole assembly.
 
A Heavy Weight Drill Pipe (HWDP) looks like a normal drill pipe except for an upset centered along the tube which helps to prevent excessive buckling.
 
Its wall thickness is up to 3 times that of a similar-sized normal drill pipe to add additional weight to the bit.
 
HWDP is used most commonly in directional drilling because it bends more easily and helps to control torque and fatigue in high-angle operations.
 
Nominal Size (Tube OD)TubeTool Joint (in)
 ID (in)Elevator UpsetCenter UpsetConnection Type & SizeOD (in)ID (in)
2-7/81-1/22-15/163-5/16NC 26 (2-3/8 IF)3-3/81-1/2
3-1/22-1/163-7/84NC 38 (3-1/2 IF)4-3/4 (4-7/8,5)2-1/16
3-1/22-1/43-7/84NC 38 (3-1/2 IF)4-3/4 (4-7/8,5)2-1/4
42-9/164-3/164-1/2NC 40 (4FH)5-1/42-9/16
42-1/24-3/164-1/2NC 40 (4 FH)5-1/42-1/2
4-1/22-3/44-11/165NC 46 (4 IF)6-1/42-3/4
4-1/22-11/164-11/165NC 46 (4 IF)6-1/42-11/16
4-1/22-13/164-11/165NC 46 (4 IF)6-1/42-13/16
535-1/85-1/2NC 50 (4-1/2 IF)6-5/83
5-1/23-1/45-11/1665-1/2 FH7 (7-1/4,7-1/2)3-1/4
5-1/23-3/85-11/1665-1/2 FH7 (7-1/4,7-1/2)3-3/8
5-1/23-7/85-11/1665-1/2 FH7 (7-1/4,7-1/2)3-7/8
5-1/245-11/1665-1/2 FH7 (7-1/4,7-1/2)4
6-5/846-15/167-1/86-5/8 FH8 (8-1/4,8-1/2)4
6-5/84-1/26-15/167-1/86-5/8 FH8 (8-1/4,8-1/2)4-1/2
6-5/856-15/167-1/86-5/8 FH8 (8-1/4,8-1/2)5
Standard FeaturesAPI Bore Back Box Connection
API Stress Relief Grooved Pin
Cold Rolled Thread Roots
Phosphate coated connections
OptionsInternal Plastic Coating
Hardband Type especially on box and pin tool joint
Proprietary Connections
Make and Break Test
ProtectionPressed steel thread protectors
Mill Test CertificatesIssued in accordance with API Spec 7/7-1 and API RP7G .
Third Party Inspection can be performed on request at buyer's care and expense.

 
HWDP Specifications
 
Conventional Heavy Weight Drill Pipes come in two configurations, Welded and Integral.
 
The welded configuration is manufactured by friction welding of extra-long tool joints to a thick well tube while the integral configuration is machined from a solid bar of AISI4145H alloy steel.
 
An additional option is the Heavyweight Spiral Drill Pipe, which has spiral grooves cut into the external surface for reduced differential sticking and improved hole-cleaning.
 
Products are manufactured to API Spec.7/ 7-1 where applicable and can come customized with additional features and proprietary connections of leading manufacturers per your requirements.
 
Contact us to discuss your requirements.

 Heavy Weight Drill Pipe 4 1/2inch 41.8 Lb FT Nc-46 Connection
 

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