Description
Drill pipe, is hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length. Longer lengths, up to 45 feet, exist.
Drill stems must be designed to transfer drilling torque for combined lengths that often exceed several miles down into the Earth’s crust, and also must be able to resist pressure differentials between inside and outside (or vice versa), and have sufficient strength to suspend the total weight of deeper components. For deep wells this requires tempered steel tubes that are expensive, and owners spend considerable efforts to reuse them after finishing a well.
RIGRS has authorized by ISO 9001, NS-1 and Russia GOST RTN . it is able to process drilling tools according to standard DS-1 under a full system of production design and quality control.. our drill pipes have been tested by the third party, such as China national petroleum pipe research insititue and Russia petroleum pipe quality control center, the quality is stable and reliable.
Friction Welded And Thin Buckle Drill pipe:
- OCTG selection,rod end upsetting meets API 5D standard.
- Thicker tube transfer of heat treatment.
- Tool joint fored,controlled atmosphere heat treatment,up to API SPEC-7-1 standard.
- Welding area using thermo-mechanical treatment, up to API SPEC-7 standard.
- The thread is reverse, apply to salvage tool.
Drill pipe is a portion of the overall drill string. The drill string consists of both drill pipe and the bottom hole assembly (BHA), which is the tubular portion closest to the bit. The BHA will be made of thicker walled heavy weight drill pipe (HWDP) and drill collars, which have a larger outside diameter and provide weight to the drill bit and stiffness to the drilling assembly. Other BHA components can include a mud motor, measurement while drilling (MWD) apparatus, stabilizers, and various specialty downhole tools. The drill stem includes the entire drill string, plus the kelly that imparts rotation and torque to the drill pipe at the top.
Range of products:
Company’s products: pipe body diameter: 60.32-168.28mm pipe wall thickness: 7.11-12.70mm
Product feature:
High material purity, uniform chemical composition, high dimensional accuracy, excellent mechanical properties and technological properties.
Catalogue of finished drill pipe:
