Topics > Oil & Gas Drilling

Drill Pipe
03/11/2015

Introduction

The drill pipe connects the rig surface equipment with the bottomhole assembly and the bit, both to pump drilling fluid to the bit and to be able to raise, lower and rotate the bottomhole assembly and bit. It`s a major drilling component which connects rotary system, hoisting system, circulation system with drill collar and bit. 
 
Our Drill Pipe Manufacturing capability ranges from 2 3/8" to 6 5/8" Outer Diameter in steel grades E, X, G, S in range 1,    
Range2, & Range 3 lengths. Drill Pipes with Special Grade & Length are available on an individual orders. 









KINGWELL API Drill Pipe Specifications
 
Size: full range from 2 3/8" - 6 5/8"
Grade: E-75, X-95, G-105, S-135
Hardbanding: ARNCO 100XT, 200XT, 300XT, BOTN3000
Internal Coating: TK34, TC2000, TC3000
Specification and product level: API SPEC 5DP, API SPEC 7-2, API RP 7G; Tool joint(connection): from NC26 to NC50, 5 1/2FH, 6 5/8FH.
In addition to API/PSL1 and PSL2 drill pipe, KINGWELL offers high standard drill pipe for severe condition drilling service including: API/PSL3, NS-1,DS-1, customers` specifications. 
Main Features of Hardbanding:
BoTn is famous for a complete series of high performance anti-wear & friction-reduction hardbanding wires, BoTn1000, Botn3000 and Botn5000. The tests results prove that the materials have perfect performance of anti-wear and friction-reduction under downhole conditions. 
BoTn1000: Sufficient hardness (HRC58-62) and good anti-wear property which can triple drill tool joint life. It can be spplied to surfacing welding for new & used tool joint, heavy weight drill pipe and various downhole instruments surface. 
BoTn3000: sufficient hardness (HRC58-62) and good anti-wear property which can protect drill pipe to the maximum extent. Perfect friction-reduction properly that can reduce the torque of the drilling string. 
BoTn5000: excellent friction-reduction property, which can reduce the casing wear. Tight combination between Botn5000 hardbanding and base metal of tool joint, no spalling, no chipping. 
 
Main Features of Internal Coating: 
- TC-2000 is epoxy-phenolic material, which can be used in a wide range of temperatures and PH conditions.
TC-2000SS is epoxy-phenolic coating, for use in high temperature and pressure environment of natural gas wells with high content of H 2S and CO 2.
TC2000P is an epoxy-novolac powder coating, which can be used in gas production environments containing H 2S and CO2 with higher temperature(400 ℉)and higher pressure conditions.
 








Parameters

 
Size Nominal OD Wall Thickness Grade Upset Style Tool Joint
Weight
in lb/ft in mm in mm
2-3/8 6.65 2.375 60.32 0.28 7.11 E,X,G EU NC26 (2-3/8 IF)
2-7/8 10.4 2.875 73.02 0.362 9.19 E,X,G,S EU NC31 (2-7/8 IF)
3-1/2 13.3 3.5 88.9 0.368 9.35 E,X,G,S EU NC38 (3-1/2 IF)
3-1/2 15.5 3.5 88.9 0.449 11.4 E,X,G EU NC38 (3-1/2 IF)
3-1/2 15.5 3.5 88.9 0.449 11.4 S EU NC40 (4 FH)
4 14 4 101.6 0.33 8.38 E,X,G,S EU NC46 (4 IF)
4 15.7 4 101.6 0.38 9.65 E,X,G,S IEU NC40 NC46
4-1/2 16.6 4.5 114.3 0.337 8.56 E,X,G,S IEU NC46 (4 IF)
4-1/2 20 4.5 114.3 0.43 10.92 E,X,G,S IEU NC46 (4 IF)
5 19.5 5 127 0.362 9.19 E,X,G,S IEU NC50 (4-1/2 IF)
5 19.5 5 127 0.362 9.19 E,X,G,S IEU 5-1/2 FH
5 25.6 5 127 0.5 12.7 E,X,G IEU NC50 (4-1/2 IF)
5 25.6 5 127 0.5 12.7 E,X,G,S IEU 5-1/2 FH
5-1/2 21.9 5.5 139.7 0.36 9.17 E,X,G,S IEU 5-1/2 FH
5-1/2 24.7 5.5 139.7 0.42 10.54 E,X,G,S IEU 5-1/2 FH
6-5/8 25.2 6.625 168.28 0.33 8.38 E,X,G,S IEU 6-5/8 FH
6-5/8 27.7 6.625 168.28 0.362 9.19 E,X,G,S IEU 6-5/8 FH
 


Other Types of Drill Pipe from KINGWELL:


KINGWELL Non-slip-cut(NSC) Drill Pipe
KINGWELL Non-slip-cut(NSC) Drill Pipe is specially designed for solving problems like the damage to the drill pipe body by the slip cut, the low operation efficiency of double-elevator, and the high labor intensity in the operation of TIH and TOH. This product adds one more shoulder positioned close to the box end than normal API standard drill pipe.
Size range: 4”, 4 1/2”, 5”, 5 1/2”, 5 7/8”, and 6 5/8” 
 
KINGWELL Offshore Casing Landing Pipe
KINGWELL Offshore Casing Landing Pipe is typically used to land heavy casing string in a deep water environment. Designed with sufficient tensile, hoisting and slip-crushing capacity to support the heavy casing string beneath it. 
Size range: 5”, 5 1/2”, 5 7/8”, 6 5/8” and 7 5/8”
 
KINGWELL Arctic Service Drill Pipe
KINGWELL Arctic Service Drill Pipe is a type of propriety drill pipe with capability to perform in extreme cold regions. 
Size range: including all API size from 2 3/8 to 6 5/8 inches. 
 
KINGWELL Super High-Strength Drill Pipe
KINGWELL Super High-Strength drill pipes are designed specifically for deep and ultra-deep wells, extended reach drilling (ERD) wells, deep offshore and other critical drilling applications. 
Size range: Kingwell high strength drill pipe is available for drill pipe ranging in size from 2 3/8 to 6 5/8 inches. 
 
KINGWELL Slip-protected Drill Pipe
In order to reduce tripping time in the drilling process to improve drilling efficiency, “one elevator one slip” is the general tripping mode. Higher slip crushing capability of the pipe body is required in deep well, extra-deep well and complicated geological conditions. To solve these problems, Kingwell designed and manufactured slip-proof drill pipe, the long thick-walled upset section is designed on the box end. 
Size range: 5”, 5 1/2”, 5 7/8”, 6 5/8” and 7 5/8”
 
KINGWELL Flush-hole Drill Pipe
Kingwell proprietary flush-hole drill pipe is designed to be made-up with the drill pipe body using a special external upset with a large ID. The ID of the tool joint is almost the same as that of the drill pipe body; Decrease annular pressure loss by 20%-50% and improve hydraulic efficiency and drilling speed. 
Size range: normally 4 1/2”, 5”, 5 1/2”, 5 7/8”, 6 5/8” and 7 5/8”
 
KINGWELL HDD Drill Pipe
KINGWELL designed and manufactured the HDD (horizontal and directional drilling) drill pipe meet the large size need, at the same time the rigidity and the thrust also have improved. Special thread design and a guide section adding in the pin thread to prevent the possibility of galling and improve the fatigue capacity, meet the requirement of pipe line horizontal directional drilling engineering. 
Size range: normally 5 7/8”, 6 5/8”
 
 
 
 
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