Hebei-Huatong Achieves Breakthrough in Large-Diameter Heat-Treated Coiled Tubing Manufacturing, Supporting Next-Generation Oil & Gas Exploration

Successful Delivery of φ88.9×5.2mm Large-Diameter Heavy-Wall Heat-Treated Coiled Tubing Marks a New Milestone in Advanced Energy Equipment Manufacturing

Recently, Xinda Kechuang, a subsidiary of Huatong Group, successfully completed the delivery of 2,900 meters of φ88.9×5.2mm (3.5"×0.204") large-diameter heavy-wall heat-treated coiled tubing. 

This achievement represents a significant breakthrough in the manufacturing capability of high-end oil and gas exploration equipment and provides new support for efficient oilfield development and energy security.

Heat-treated coiled tubing is an advanced product designed with high strength, excellent toughness, and improved microstructural uniformity. Compared with conventional coiled tubing, its fatigue life can be extended by more than 50%, enabling longer service performance under demanding operating conditions.

Through continuous innovation in heat treatment technology and manufacturing processes, this high-performance coiled tubing is specifically designed for challenging oil and gas applications, including:

Deep wells
Ultra-deep wells
Extended-reach horizontal wells
High-pressure and complex drilling environments

By improving durability and operational reliability, the product helps oilfield operators reduce maintenance costs and enhance production efficiency.

Warm Congratulations on the Successful Production of Xinda Kechuang’s First 88.9×5.2mm Heat-Treated Coiled Tubing

Overcoming Key Manufacturing Challenges Through Advanced Technology

As oil and gas exploration continues to move toward deeper formations, offshore environments, and more complex geological conditions, the demand for high-performance downhole equipment is increasing rapidly.

The successful development of this large-diameter heavy-wall heat-treated coiled tubing demonstrates Huatong Group’s ability to overcome critical manufacturing challenges through independent research and advanced process control.

By applying a specially developed heat treatment process throughout the production chain, the product achieves an optimized balance between:

High mechanical strength
Superior toughness
Stable performance consistency

This innovation addresses a long-standing industry challenge: maintaining both strength and flexibility when increasing tubing diameter and wall thickness.

The successful delivery proves that large-size coiled tubing can achieve outstanding performance without compromising operational flexibility and reliability.

Breaking Manufacturing Limits with Full-Process Quality Control

In coiled tubing manufacturing, the combination of large diameter, heavy wall thickness, and high-strength steel grades creates significant technical challenges.

Success requires more than a single advanced process. It depends on the coordinated performance of the entire manufacturing system, including:

Raw material preparation
Precision forming processes
Online weld monitoring
Heat treatment control
Full-process quality management

The production of this large-diameter heat-treated coiled tubing represents a comprehensive upgrade of manufacturing capability, including equipment performance optimization, process refinement, and enhanced quality assurance systems.

Through strict process control and continuous improvement, Huatong Group ensures stable product performance and reliable quality for demanding energy applications.

Supporting Energy Development Through Advanced Manufacturing

The global oil and gas industry is entering a new stage focused on:

Increasing reserves and production capacity
Digital transformation
Green and efficient energy development

Emerging fields such as shale gas, deep oil and gas resources, and offshore exploration continue to create higher requirements for advanced oilfield equipment.

Looking ahead, Huatong Group will continue investing in:

Advanced material technologies
High-performance manufacturing processes
Customized engineering solutions

By transforming technological innovation into reliable industrial products, Huatong Group is committed to supporting the oil and gas industry with safer, more efficient, and more sustainable solutions.

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about HEBEI- HUATONG

Founded in 1993, Hebei-Huatong is a global cable manufacturing enterprise with production facilities located in Tangshan (Hebei Province, China), Busan (South Korea), Panama, Kazakhstan, Tanzania, Cameroon, and Angola. Its core product portfolio includes submersible pump cables for oil extraction, flexible moving cables for harbor cranes, cUL/CSA listed cables for AI PDU and marine shipboard cables. The company provides robust support for the continuous, safe, and efficient operation of industrial sectors worldwide, including offshore and onshore oil & gas exploration, and material handling via port cranes.