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Drill Pipe
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Heavy Weight Drill Pipe
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Drill Collar
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Kelly
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Tool Joint
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Surface Protection & Internal Coating
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Specialty Drill Products
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Equipped with world-class production & testing equipment, covering full industrial chain from R&D to maintenance.
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Compliant with GB, API, NS-1 & GOST standards; custom tools for oil, shale gas, geothermal and exploration.
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Certified products serving oilfields & multiple sectors; qualified supplier for top global energy enterprises.
View Details Request QuoteLongway Petroleum
We Specialized in
Manufacturing of Petroleum Drilling Tools
We can customize high-performance drill pipe assemblies of various sizes according to customer needs.
Longway was established in 1996
About LONGWAY
Professional Drilling tools Manufacturer in China
Hebei Longway Petroleum Equipment Co., Ltd. is a professional petroleum equipment manufacturing enterprise integrating the design, manufacture, testing and maintenance of petroleum drilling tools. The company is equipped with American MTI friction welding machines, NOV-manufactured pipe end upsetting machines, fully automatic integral heat treatment furnaces, joint forging equipment...
3 friction welding lines & 2 upsetting production lines
6 full-chain core processes, customized tools for 4 drilling fields
4 international certifications, independent R&D of high-grade drill tools
Qualified supplier of 4 energy giants, products exported to 10+ countries
Our Core Strengths
Rigorous Quality Inspection & Worldwide Exhibition
Longway Petroleum is a full-chain professional manufacturer of drilling tools equipped with complete production & testing equipment, holding multiple international certifications, supplying customized standard & special drill tools and serving top energy enterprises across over 10 countries worldwide.
- Raw Materials for Drill Pipe Body & Tool Joint
- Drill Pipe Body Manufacturing Process
- Tool Joint Manufacturing Process
- Magnetic Particle Inspection (MPI)
- Ultrasonic Testing (UT)
- Hardness Test
- One-stop Technical Consultation
- Fast Quotation For Clients
- Custom Design Service
Global Market
Our Global Footprint & Strategic Impact
Global Market Coverage
Our drilling tools export to Europe, Middle East, Africa and South America, serving oil, geothermal and geological projects worldwide.
Authorized Global Supplier
Qualified supplier of CNOOC, Rosneft and Gazprom, offering customized drilling tools with complete international certifications.
Frequently Asked Questions
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Need more technical support?
If you require product selection advice or have any technical questions about your drilling project, Hebei Langwei’s experienced technical team is here to provide expert support. We can tailor solutions to your specific drilling conditions and deliver prompt, efficient technical services to customers worldwide.
Can the internal coating be repaired or repainted?
Sure.
Based on the actual service conditions of drill pipes, locally damaged or worn internal coatings may be inspected, repaired, or re-coated.
Prior to repair, a comprehensive inspection will be conducted to assess internal corrosion, wall thickness, the condition of the existing coating, and the overall structural integrity. Following surface treatment, an FBE internal coating will be reapplied, and curing will be carried out under rigorously controlled process conditions to restore the component’s corrosion resistance, wear resistance, and fluid‑flow‑optimizing performance.
Regular inspection and timely repair of the internal coating help extend the service life of drill pipes and enhance the operational reliability of the drilling system.
How to choose the right internal coating?
The selection of the internal coating should comprehensively consider factors such as well depth, drilling environment, drilling fluid system, operating temperature, corrosion severity, circulation rate, and expected service life.
Hebei Langwei offers four FBE internal coating systems with varying performance grades to meet diverse drilling requirements:
LPC3000P: Suitable for conventional oil and gas wells, water wells, and geothermal wells;
LPC3000P-HD: Suitable for deep wells, horizontal wells, extended-reach wells (ERD), and highly abrasive operating conditions;
LPC5000P: Suitable for deep wells, ultra-deep wells, and drilling operations with stringent requirements for hydraulic efficiency and service life;
LPC5000P-HD: Suitable for high‑temperature, high‑pressure (HPHT) wells, sour gas and oil wells (H₂S/CO₂), and other extreme drilling environments.
Hebei Langwei’s technical team can, based on the customer’s wellbore configuration, drilling fluid system, operating temperature, circulation rate, corrosive media, and specific drilling conditions, recommend the most suitable internal coating solution, achieving an optimal balance among product performance, service life, and overall total cost of ownership.
What internal coating systems do you offer?
Hebei Langwei offers four distinct performance‑grade fusion‑bonded epoxy (FBE) powder coating systems for drill pipe interiors, catering to a variety of drilling conditions:
LPC3000P: Suitable for conventional oil and gas wells, water wells, geothermal wells, and standard drilling operations;
LPC3000P-HD: Suitable for deep wells, horizontal wells, shale oil and gas wells, and highly abrasive operating conditions, offering superior wear resistance.
LPC5000P: Suitable for deep wells, ultra-deep wells, and high-temperature, complex operating conditions, particularly for projects with stringent requirements for wear resistance, hydraulic efficiency, and service life.
LPC5000P-HD: Designed for ultra-deep wells, high-pressure/high-temperature (HPHT) wells, sour gas wells (H2S/CO2), and other extreme drilling environments, it delivers exceptional wear and corrosion resistance as well as long-term operational reliability.
Why do drill pipes require an internal coating?
During drilling, the inner wall of the drill pipe is continuously subjected to erosion by drilling fluid, solid particles, and corrosive media. Without effective protection, issues such as internal-wall corrosion, erosive wear, and increased flow resistance are likely to occur.
Adopting an FBE internal coating can provide the following advantages:
* Enhance corrosion resistance;
* Enhances resistance to erosion and wear;
* Reduce fluid flow resistance;
* Reduce pump pressure loss;
* Reduces scaling and deposit adhesion;
* Extend the service life of drill rods.
These advantages help improve drilling efficiency while reducing equipment maintenance costs and downtime.
What is an inner coating for drill pipes?
Internal Coating is a high-performance protective layer applied to the inner wall of drill pipe using fusion-bonded epoxy (FBE). It serves to resist corrosion, erosion, and wear caused by drilling fluids, cuttings, and corrosive media, while also enhancing the flow characteristics of the drilling fluid.
Compared with conventional drill pipes, coated‑in‑pipe drill pipes feature a smoother inner surface, which reduces flow resistance and pressure loss, minimizes scale buildup, enhances circulation efficiency, and effectively extends the service life of the drill pipe. They are widely used in oil and gas drilling, geothermal wells, water wells, and other complex drilling operations.
Blog & Event
Insights from Our Blogs
Drill pipe plays an extremely important role in the drilling process. If the drill pipe is not used and maintained properly, it is easy to accidentally break the drill pipe because the probes attached to the drill pipe are worth a lot of money, ranging from a few thousand dollars to tens of thousands of dollars.
Drill column is the general name of all downhole drilling tools from square drill pipe to drill bit, which consists of square drill pipe, drill pipe, drill collar, stabilizer joint and various other accessories.
We can customize high-performance drill pipe assemblies of various sizes according to customer needs.
Contact Us
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Address
052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
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