Drill Pipe And Drill Collar And HWDP
Drill pipe for deep wells, horizontal wells, extended reach wells, sulfur environment and low temperature environment drilling. Sour Service Drill Pipe, Aluminum Alloy Drill pipe, double Walled drill pipe, Special Tool Joint drill pipe, High Strength Drill pipe, Slip protected Drill pipe, Flush hole drill pipe
Steel Grade：E-75, X-95, S135, G105
Length: R1( 6.10-7.32m ), R2( 8.53-9.75m), R3(11.58-12.80m)
Connection: NC50(4 1/2" IF )， NC46（4" IF), NC40(4"FH),NC38(3 1/2" IF)
Hardbanding: BoTn series, ARNCO series, DURABAND, TCS etc
Internal coating:TC2000,TC2000P, TC2000SS H2S resitant internal coating, TC3000C H2S, CO2 resistant internal coating.
API SPEC 7-1
AISI 4145H
Sizes:3 1/8" -- 11"
Connected Type: NC, IF, REG
Heavy Weight Drill Pipe (HWDP)
Size: Outer Diameter: 2 7/8” – 6 5/8”
Lengths: Range 2 and Range 3
Pipe Standard: API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q, API 5CT and 5B L80-1,C90, C95,T95, P110, Q125
End Finishes:Internal Upset, External Upset, Plain End Upset, Non Upset
Tool Joint type:NC38、NC46、NC50、5-1/2 FH
Kelly is on the top of the drill stem.Kelly is main driver of the whole drill string. It transmits drill stem weight and torsional energy from the rotary table through the drill string to the bit at the bottom of the hole. When assembled with down hole motor and Turbodrill tools, Kelly should bare the stem weight and Reverse torque,it will Measure the depth of a well and provide a circulation channel. TIANHE Kelly consists of a driving part (square or hexagonal), upper joint (LH connection) and lower joint (RH connection).
