API 5DP Drill Pipe

Drill pipe is a heavy, seamless tube can rotate the drill bit and circulates drilling fluid. It allows the drilling fluid to be pumped through the bit and back up the annulus. The pipe is subject to axial tension, extremely high torque and high internal pressure.

Drill Pipe is durable steel pipe used in drilling activities, standards in API 5DP and API SPEC 7-1.

Drill Pipe is one of OCTG Pipe

OCTG means Oil Country Tubular Goods, it refers to the steel pipe products that applied in the oil and gas production related to drilling activities. OCTG pipe also could be taken as a collective name of Drill pipe, Steel Casing Pipe and Tubing pipe, Couplings, Connections and Accessories, used in petroleum industries that onshore and offshore, manufactured according to specifcaitons of API.D

Drill pipe is an important components for drilling rig to extract oil or other liquids from down ground. It is not used for extraction, instead, the hollow tubes pump drilling fluids downward to the bit and back out again as needed to reduce friction and heat buildup. Drill pipe transferred drilling torque to drill bit for drilling under the oil well. It bears complicated strength subject to pulling, loading, pressing, torsion and bending.

Drill Pipe for Sale

Octal offers different grades of API 5DP Drill Pipe, sourcing from professional drill pipe manufacturers in China, supply range as below:
Standard and Grades
API 5DP Grade DZ50,
General Grade of Drill Pipe API 5DP Grade E75,
General Grade of Drill Pipe API 5DP Grade R780,
Medium high grade of Drill Pipe API 5DP Grade X95,
High grade Drill Pipe API 5DP Grade G105,
High grade Drill Pipe API 5DP Grade S135

API 5DP Drill Pipe Sizes Range

Range of Sizes: 2 3/8” to 5 1/2”
Range of Thickness: 6.5mm to 12.7mm
Length: R1, R2, R3

API 5DP Drill Pipe mechanical properties and manufacturing processes

Drill Pipe manufactured strictly according to API 5DP standard
Yield strength: Min 517 Mpa
Tensile strength: Min 724 Mpa
Pipe body material: High quality alloy seamless pipe of E75
Thread treatment: Phosphorization or copper plating

Applications of the Drill Pipe in API 5DP

The drilling tool is connected drill rod for transferring power. The drill string is usually part are: drill, drill collars, drill pipe, stabilizers, special connectors and Kelly. The basic role of the drill string are: (1)control the drill bit; (2) imposed WOB; (3) transmission of power; (4) transporting drilling fluid; (5) special operations: extrusion of cement, handling underground accidents.

API 5DP drill pipe is trailing with screw thread for connecting the drilling rig located at the bottom of surface drilling equipment and mill equipment or bottom outlet device. The purpose is to drill the drilling mud delivered to the drill bit, and drill with the increase, decrease or rotating bottom outlet means. Drill pipe must be able to withstand great external pressure, twisting, bending and vibration. In the mining and oil and gas refining process, the drill pipe can be used multiple times.

API 5DP