HWDP Specs

HEAVY WEIGHT DRILL PIPE

Command Energy Services Ltd. heavy weight drill pipe is the industry standard for an intermediate weight drill stem member, and is available in standard or spiral designs, making it useful in a number of applications. It shares its dimensions with standard drill pipe for easier handling. Our heavy weight drill pipe carries a unique center upset or wear pad to increase tube life while reducing hole drag and differential sticking problems.

All tool joints exceed API requirements, and all threading is performed in accordance with API Spec 7. Our hardbanding is applied based on our customers specifications and requirements. Tungsten carbide and casing-friendly hardbanding options are also available upon request.

Features and Options

  • API Stress Relief Features (SRF)
    The pin stress relief groove and box boreback features increase connection flexibility and reduce stress concentration, thereby reducing the frequency of fatigue failures.
  • Phosphate Coating
    All drill pipe connections are coated with a durable phosphate coating that inhibits corrosion resistance, and prevents shoulder and thread galling.
  • Internal Plastic Coating
    An internal plastic coating option is available upon request.
  • Hardbanding
    Various optional hardbanding materials are available and applied either flush or raised to the tool joint surface to meet your individual needs.

Heavy Weight Drill Pipe Specifications

 

Nom. Size Tube Mechanical Properties Tube Section Tool Joint Approx. Overall Length
Nom. Tube Dimensions Center Upset OD Elevator Upset OD Tensile Yield Torsional Yield Conn. Size and Type OD ID Tensile Yield Torsional Yield Make-up Torque Approx. Overall Length Pin/Box
ID Wall Thickness Area
(in.) (in.) (in.) (in².) (in.) (in.) (lb.) (ft-lbs) (in.) (in.) (lb.) (ft-lbs) (ft-lbs) (in.) (ft.)
3-1/2 2-7/16 .625 5.645 4 3-5/8 310,475 18,460 NC 38 (3-1/2 IF) 5 2-7/16 675,045 17,575 10,000 30 / 27 31
4 2-9/16 .719 7.410 4-1/2 4-1/8 407,550 27,635 NC 40 (4 FH) 5-1/4 2-9/16 711,475 23,525 13,3000 30 / 27 31
4-1/2 2-13/16 .875 9.965 5 4-5/8 548,075 40,715 NC 46 (4 IF) 6-3/8 2-13/16 1,024,500 38,800 21,800 30 / 27 31
5 3 1.000 12.566 5-1/2 5-1/8 691,185 56,495 NC 50 (4-1/2 IF) 6-5/8 3 1,266,000 51,375 29,200 30 / 27 31
5-1/2 3-1/4 1.063 14.812 6 5-5/8 814,660 74,140 5-1/2 FH 7-1/4 3-1/4 1,349,365 53,080 32,800 30 / 27 31
6-5/8 4-1/2 1.063 18.567 7-1/8 6-3/4 1,021,185 118,845 6-5/8 FH 8-1/4 4-1/2 1,490,495 73,215 45,800 30 / 27 31

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