Drill Pipe
Classification :
PRODUCT DETAILS
Description
Drill pipes are long tubular sections of pipe that make up the majority of the drill string. They are typically a 31 foot long section of tubular pipe but may be anywhere from 18 to 45 feet in length.
Heavy weight drill pipe (HWDP) is a tubular pipe that adds weight or acts as a transitional piece in the drill string. As a transitional section of the drill string, it is placed between the drill collar and standard drill pipe to reduce fatigue failures. In other applications the HWDP is used as an additional weight to weigh down the drill string.
Heavy weight drill pipe is a medium-weight drilling pipe, (referred standards in API SPEC 7-1). It has bigger wall thickness than common drilling pipe and smaller than drill collar.
Drill collars are a component of the drill string that makes up part of the BHA. They are thicker-walled, heavier, and more rigid than drill pipes and are primarily used to weigh down the drill bit while dampening vibration and impact forces.
Drill Pipe:2-3/8" to 7-5/8" OD, Range 2 and 3
Heavy Weight pipe:2-3/8" to 6-5/8" OD, Range 2 and 3
Drill Collars:2-7/8" to 14"
Grades: E75, X95, G105, S135
Connection threads:NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH.
Internal Upset: IU, EU, IEU
Specification
| Size designation | Calculated weight | Tool joint designation | Calculated weight | grade | Wall thickness | Upset ends | ||
| in | 1b/ft | Kg/m | in | mm | ||||
| 2 3/8 | 6.65 | NC26 | 6.26 | 9.32 | E.X.G.S | 0.28 | 7.11 | EU |
| 2 7/8 | 10.4 | NC31 | 9.72 | 14.48 | E.X.G.S | 0.362 | 9.19 | EU |
| 3 1/2 | 13.3 | NC38 | 12.31 | 18.34 | E.X.G.S | 0.368 | 9.35 | EU |
CUSTOMER VISIT
All products strictly adhere to internationally recognized standards such as GB, ASTM, EN, JIS, and DIN, and are suitable for overseas procurement needs in various fields such as food packaging, home appliance manufacturing, infrastructure engineering, machinery processing, petrochemicals, and marine engineering. Our products are exported to more than 80 countries and regions in Southeast Asia, the Middle East, Africa, Europe, and Latin America.
FACTORY WORKSHOP
Taking product quality as the guide, constantly seeking breakthroughs, achieving optimization and upgrading, and striving to create high-quality steel products are our constant pursuits. The products have passed national safety 3C certification, EU CE certification and ISO9001 international quality system certification.
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APPLICATION AREAS
Construction Project
Marine Exploration
Automobile Manufacturing
Architectural Engineering
Aerospace
Solar Energy
Bridge Construction
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