API 7K Type DU Drill Pipe Slip Drill String Operation

Short Description:

There are three types of DU series Drill Pipe Slips: DU, DUL and SDU. They are with large handling range and light weight. Thereinto, SDU slips have larger contacting areas on the taper and higher resistance strength. They are designed and manufactured according to API Spec 7K Specification for drilling and well servicing equipment.


Product Detail

Product Tags

There are three types of DU series Drill Pipe Slips: DU, DUL and SDU. They are with large handling range and light weight. Thereinto, SDU slips have larger contacting areas on the taper and higher resistance strength. They are designed and manufactured according to API Spec 7K Specification for drilling and well servicing equipment.

Technical Parameters

Mode Slip Body  Size(in)
4 1/2 5 1/2 7
DP OD DP OD DP OD
in mm in mm in mm
DU 2 3/8 60.3 3 1/2 88.9 4 1/2 114.3
2 7/8 73 4 101.6 5 127
3 1/2 88.9 4 1/2 114.3 5 1/2 139.7
4 101.6 5 127 6 5/8 168.3
4 1/2 114.3 5 1/2 139.7 7 177.8
DUL 2 3/8 60.3 3 1/2 88.9 4 1/2 114.3
2 7/8 73 4 101.6 5 127
3 1/2 88.9 4 1/2 114.3 5 1/2 139.7
4 101.6 5 127 6 5/8 168.3
4 1/2 114.3 5 1/2 139.7 7 177.8
SDU     3 1/2 88.9 4 1/2 114.3
    4 101.6 5 127
    4 1/2 114.3 5 1/2 139.7
    5 127 6 5/8 168.3
    5 1/2 139.7 7 177.8

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