API 7-1 Drill Collars / Spiral Drill Collars for Well Drilling

GPE Oil Machinery Co., Ltd offers slick drill collars for hole drilling with a specification range of 79.4mm to 279.4mm. Our drill collars are API 7-1 compliant and available in magnetic and non-magnetic options. Choose from various sizes and specifications to meet your drilling needs.

API Drill Collar by GPE Oil Machinery Co., Ltd

The API Drill Collar is an essential component of the Bottom Hole Assembly (BHA) used in drilling operations. It provides weight on the bit for efficient drilling and ensures the drillstring remains in tension. Manufactured from 4145H modified quenched and tempered steel, this drill collar has been approved by the NS-1 certification.

Features:

• Hardness range of 285 to 341 BHN


• Charpy impact value of 40 ft-lbs


• Guaranteed hardness and impact value at evenly distributed 16 points in any sections at room temperature


• Connections completed with phosphate coating to protect against the elements and prevent galling upon initial make-up


• Cold rolled thread roots on API and H-90 connections


 

Benefits:

• Ensures consistent maximum depth of hardness for optimal drilling performance


• Provides weight on the bit for efficient drilling


• Maintains tension in the drillstring for improved stability


• Protects connections from corrosion and galling


• Supplied with pressed steel thread protectors for all drill collars equipped with standard connections


 

Choose the API Drill Collar by GPE Oil Machinery Co., Ltd for reliable and high-quality drilling operations. Trust our NS-1 certified product to deliver exceptional performance and durability.