Drilling Tools

Drill Pipe

O.D:2″-6 5/8″

Grade : E75,X95,G105,S135,etc.

Standard:API 5DP, API 7

Upset Type: API IU、EU、IEU:

End-Finish:NC23-NC70; REG; FH etc.

 

Heavy Weight Drill Pipe (HWDP)

O.D.: 2 7/8″、3 1/2″、 4″、4 1/2″、5″、5 1/2″、5 7/8″、6 5/8″

Grade: E75,X95,G105,S135,etc.

Standard: API Spec 7-1、NS-1、DS-1,etc.

Upset Type: API IU、EU、IEU:

Tool Joint Types:  NC38, NC46, NC50, and 5-1/2 FH

 

Drill Collar

O.D: 3 1/8″ to 11″ and beyond

Grade: AISI 4145H,4145HA,4145HQ,4145HMOD/ non-magnetic series

Standard: API SPEC 7-1or otherwise agreed

 

Rotary Kelly

O.D: : 2 1/2”, 3”， 31/2”，4-1/4″, 5-1/4″, 6″

Type: Square or Hexagonal

Grade: AISI 4145H,4145HA,4145HQ,4145HMOD

Standard: API Spec 7-1

Length: 37 feet (11.3m), 40 feet (12.2m), 46 feet (14.0m), and 54 feet (16.5m).