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Slick Drill Collars 3.125inch 3.325inch

Slick Drill Collars

A Slick Drill Collar, also known as a Drill Collar, is a tubular piece of a drill string which provides weight on a bit for the purpose of drilling. While drill pipes make up the majority length of drill strings, drill collars make only a small amount. They have thick walls machined from the solid bars of steel. The steel bars are usually of plain steel but are sometimes of non-magnetic nickel-copper alloy or other non-magnetic premium alloys. These bars are drilled from end-to-end in order to provide a path for pumping drilling fluid via the collars.
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Product Description


Slick Drill Collars 3.125inch 3.325inch


Slick Drill Collars

 

A Slick Drill Collar, also known as a Drill Collar, is a tubular piece of a drill string which provides weight on a bit for the purpose of drilling. While drill pipes make up the majority length of drill strings, drill collars make only a small amount. They have thick walls machined from the solid bars of steel. The steel bars are usually of plain steel but are sometimes of non-magnetic nickel-copper alloy or other non-magnetic premium alloys. These bars are drilled from end-to-end in order to provide a path for pumping drilling fluid via the collars.


ROSCHEN Drill Collar

 

ROSCHEN is a pioneer manufacturer and supplier in oil and gas products of high quality and at a competitive price. ROSCHEN mainly provides products such as tubing, casing, drill pipes, drill collars and so on.


We have drill collars from 5 to 32 feet, with a diameter from 3-1/8”to 11”. Our drill collars are made of AISI4145H premium alloy steel. These drill collars are fully heating quenched, tempered and water cooling measured to withstand high strength and compression. Strict mechanical inspection is applied to drill collars to make sure that all drill collars can meet the requirements of the API m7-1 specification.

 

TenarisHydril Slick Drill Collar 3.125” x 20.046” WT23 Range 2

Specification

Tool   Joint/Connection Specifications

Nominal OD

3   1/8"(3.125")

Connection

WT23

Bend Stress   Ratio

1.68

Nominal ID

1 1/2"   (1.5")

OD

3   1/8"(3.125")

ID

1   1/2"(1.5")

Steel Grade

AISI 4145H   Modified

Adjusted Weight

20.05 lb/ft

Average Length

31.50 ft

Nominal wall   weight

20.046#

Tensile Strength

387000lbs

Torsional   Strength

10400 lb/ft

Nominal wall   thickness

0.813"

Minimum Make Up   Torque

2200Ib/ft

Maximum Make Up   Torque

8300 lb/ft

Drift Size

1 3/8"   (1.375")

Fluid Capacity

0.307 Gal/ft

Elevator Recess

N/A

IPC

None

Inspection   Criteria

NS-2

Fluid   Displacement


Pin Length

n/a


Box Length

n/a

Average weight   per joint

630lbs (286kgs)

Manufacturing   Criteria

API Spec7-2/   FPUK NS-1

Drill Collar   Capacities

Cross Section   Area Body(in²)

5.903

Cross Section   Area OD(in²)

7.67

Cross Section   Area ID(in²)

1.767

Section   Modulus(in³)

2.837

Polar Section   Modulus(in³)

5.674

Moment of   Intertia(in4)

4.43

Polar Moment of Inertia(in4)

8.87

 

Grant Prideco Slick Drill Collar 3.125” 20.07” HT PAC Range 2

Specification

Tool   Joint/Connection Specifications

Nominal OD

3   1/8"(3.125")

Connection

HT PAC

Bend Stress   Ratio

2.418

Nominal ID

1 1/2"   (1.5")

OD

3   1/8"(3.125")

ID

1 1/2"(1.5")

Steel Grade

AISI 4145H   Modified

Adjusted Weight

20.07 lb/ft

Average Length

31.50 ft

Nominal wall   weight

20.07#

Tensile Strength

244200lbs

Torsional   Strength

7800 lb/ft

Nominal wall   thickness

0.813"

Minimum Make Up   Torque

3100Ib/ft

Maximum Make Up   Torque

4700 lb/ft

Drift Size

1 3/8"   (1.375")

Fluid Capacity

0.09 Gal/ft

Fluid   Displacement

0.31 Gal/ft

IPC

None

Inspection   Criteria

NS-2



Pin Length

n/a


Box Length

n/a

Average weight   per joint

622lbs (283kgs)

Manufacturing   Criteria

API Spec7-2/   FPUK NS-1

Drill Collar   Capacities

Cross Section   Area Body(in²)

5.903

Cross Section   Area OD(in²)

7.67

Cross Section   Area ID(in²)

1.767

Section   Modulus(in³)

2.837

Polar Section   Modulus(in³)

5.674

Moment of   Intertia(in4)

4.43

Polar Moment of   Inertia(in4)

8.87

 

TenarisHydril Slick Drill Collar 3.325” x 22.20” WT26 Range 2

Specification

Tool   Joint/Connection Specifications

Nominal OD

3   3/8"(3.375")

Connection

WT26

Bend Stress   Ratio

1.71

Nominal ID

1 3/4"   (1.75")

OD

3 3/8"(3.375")

ID

1   3/4"(1.75")

Steel Grade

AISI 4145H   Modified

Adjusted Weight

22.22 lb/ft

Average Length

31.50 ft

Nominal wall   weight

22.20#

Tensile Strength

416000lbs

Torsional   Strength

13200 lb/ft

Nominal wall   thickness


Minimum Make Up   Torque

2800Ib/ft

Maximum Make Up   Torque

9800 lb/ft

Drift Size

1 3/8"   (1.375")

Fluid Capacity


Fluid   Displacement


IPC

None

Inspection   Criteria

NS-2

Elevator Recess

N/A

Pin Length

n/a


Box Length

n/a

Average weight   per joint

700lbs (318kgs)

Manufacturing   Criteria

API Spec7

Drill Collar   Capacities

Cross Section   Area Body(in²)


Cross Section   Area OD(in²)


Cross Section   Area ID(in²)


Section   Modulus(in³)


Polar Section   Modulus(in³)


Moment of   Intertia(in4)


Polar Moment of Inertia(in4)


InterDril Slick Drill Collar 4.125” x 35.61 lb/ft NC31 Range 2

Specification

Tool   Joint/Connection Specifications

Nominal OD

4   1/8"(4.125")

Connection

NC31

Bend Stress   Ratio

2.44

Nominal ID

2"   (2")

OD

4   1/8"(4.125")

ID

2"(2")

Steel Grade

AISI 4145H   Modified

Adjusted Weight

35.61 lb/ft

Average Length

31.0 ft

Nominal wall   weight

22.20#

Tensile Strength

495000lbs

Torsional   Strength

13200 lb/ft

Nominal wall   thickness


Minimum Make Up   Torque

5400Ib/ft

Maximum Make Up   Torque

7100 lb/ft

Drift Size

1 7/8"   (1.625")

Fluid Capacity


Fluid   Displacement

0.531 lb/ft

IPC

None

Inspection   Criteria

NS-2



Pin Length

n/a


Box Length

n/a

Average weight   per joint

1104lbs (502kgs)

Manufacturing   Criteria

API Spec7

Drill Collar   Capacities

Cross Section   Area Body(in²)

6.51

Cross Section   Area OD(in²)


Cross Section   Area ID(in²)


Section   Modulus(in³)


Polar Section   Modulus(in³)


Moment of   Intertia(in4)


Polar Moment of   Inertia(in4)


 

We have been making drill collars for years so we are confident that our drill collars will satisfy or even beyond your demands. We are always here ready to offer you the top quality drill collars as well as our professional and all-embracing service.


For more information please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net


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