Heavy Weight Drill Pipe:
Detailed Specifications

SERVICE OVERVIEW & TECHNICAL PROCESS

Process Description

Our heavy weight drill pipe services cover machining, threading, and inspection of HWDP components used to provide additional weight and stiffness in the bottom hole assembly. Each unit is processed to strict dimensional tolerances and connection specifications, ensuring reliable performance under high torque and compressive loads during drilling operations.

Technical Scope & Capabilities

Machining and re-machining of tool joints and tube body
Center upset wear pad inspection and repair
Thread cutting to API and premium connection standards
Hardbanding application and inspection support

Our Inspection process

Inspection

Each drill pipe undergoes full visual, magnetic particle, and ultrasonic inspection to identify surface damage, cracking, corrosion, and wall thickness loss. Tool joints, tube body, and wear pads are individually assessed and classified against API and DS-1 criteria.

Repair & Fixing

Components identified with wear or defects during inspection are repaired using precision machining, re-threading, hardbanding application, and wear pad restoration. Damaged sections are corrected to restore original dimensional and mechanical specifications.

Re-Assembling

Repaired components are re-assembled and connections are made up to specified torque values using calibrated equipment. Final dimensional checks and thread gauging confirm the assembly meets required tolerances before release.

Final Quality Verification

A final round of quality checks — including straightness verification, thread gauge inspection, and documentation review — confirms the drill pipe meets all API and client specifications before it is certified and returned to service.

TECHNICAL SPECIFICATIONS & FEATURES

Specification	Details	Compliance
Product Type	Heavy Weight Drill Pipe (HWDP)	API 7-1
Connection	Rotary shouldered connections	API 7-2
Wear Pad	Center upset wear pad condition assessment	API RP 7G-2