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Hardbanding
Description
- 产品描述
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Product Overview
The LW series wear‑resistant coating technology forms an ultra‑hard metallic layer on the surfaces of drill pipe joints, heavy drill collars, and heavy weighted drill pipes (HWDP). It is available in three grades: LW600, LW700, and LW800. The LW600 offers a wear life 1.2 times that of untreated joints, while the LW800 achieves up to 2.4 times the wear life. This technology reduces casing wear by 70–85% and exhibits no cracking or spalling, establishing a strong metallurgical bond with the joint substrate. It is suitable for drill pipe joints, heavy drill pipes, and drill collars.
Product Description
• Basic Information: Hardbanding is a process in which a wear‑resistant alloy layer is applied to the joints of drill pipes or drill collars to extend the service life of oilfield tubing. Primarily used during drilling and tripping operations, it addresses excessive wear between the drill string and casing caused by rotational and axial friction. LW‑series hardbanding materials offer exceptional wear resistance and superior casing protection. Compared with untreated joints, the LW600 provides 1.2 times the wear life, the LW700 1.8 times, and the LW800 2.4 times. All LW‑series products exhibit excellent crack‑resistance, with no visible surface cracks.
• Application scenarios: Suitable for drill pipes, heavy-weight drill pipes (HWDP), and drill collar joints operating in abrasive formations, extended-reach wells, and high‑wear drilling environments; suitable for casing protection in deep wells; applicable to all drilling operations where wear‑related risks are present.
• Product Advantages: LW600—extends coupling service life by a factor of 1.2; LW700—extends coupling service life by a factor of 1.8; LW800—extends coupling service life by a factor of 2.4. Reduces casing wear by 70%–85%. Exhibits no cracking or spalling. Forms a strong metallurgical bond with the coupling. Complies with API 7CW standards.
• Customer Case Feedback: Widely used in deep‑well and directional drilling projects that demand exceptionally high wear resistance. Customer feedback indicates that this product extends joint service life and reduces casing wear.
Product Structure
1. Straight-Platform Wear-Resistant Belt
• Core structure: Wear-resistant surfacing area on the straight section, measuring only 76.2 mm in length.
• Advantages: Extremely versatile, compatible with the vast majority of standard drill pipe joints, and requires no special matching components.
• Applicable scenarios: vertical wells, shallow wells, and formations with a low risk of casing wear
2. Flush-type (for conduit only) wear-resistant tape
Core structure: All‑flat overlay welding structure, with no sharp edges or corners.
Advantages: The surface is smooth and even, with no sharp edges, significantly reducing abrasion and cutting damage to the casing’s inner wall, resulting in excellent casing protection.
Applicable scenarios: Long-term, continuous drilling operations that simultaneously meet both wear‑resistance and casing‑protection requirements.
3. Fully Tapered Transition Wear-Resistant Strip
• Core structure: full‑profile wear‑resistant band with a sloped, gradual transition section at the ends.
• Advantages: Comprehensive wear resistance; the sloped transition section protects the reducer area, preventing localized concentrated wear and extending the overall service life of the joint.
• Applicable scenarios: Long open-hole sections, formations with poor wellbore stability, and formations posing a high risk of differential sticking.
4. Unilateral Arc-Transition Wear-Resistant Strip
• Core structure: The ends feature an R3.2mm arc for a smooth transition.
• Advantages: Optimized stress distribution; smooth arc transitions reduce edge stress concentrations, preventing cracking and spalling of the wear‑resistant strip and extending service life.
• Application scenarios: Formations prone to diameter reduction and keyway formation, where both wear resistance and anti‑sticking performance are required.
Product Specifications
• LW600 Abrasion-Resistant Belt Technical Data Sheet
Eight Core Performance Metrics
Serial number Performance Item Technical Specifications 1 Hardness ≥54 Rockwell Hardness (HRC) 2 Increase in drill pipe service life 120% 3 Crack sensitivity No cracks visible to the naked eye. 4 Re-welding repair performance Excellent 5 Abrasion Resistance Test (ASTM G65 Standard / Abrasion Weight Loss) ≤0.22 mg 6 Casing wear (Muller test method) ≤38 cubic millimeters 7 Surface quality Smooth surface, free of defects. 8 Impact resistance Excellent High-performance, wear-resistant belt material, specifically engineered for demanding drilling conditions, protects drill pipes from abrasion and safeguards casing, significantly extending the service life of drilling tools.
• LW700 Abrasion-Resistant Belt Technical Data Sheet
Eight Core Performance Metrics
Serial number Performance Item Technical Specifications 1 Hardness ≥57 Rockwell Hardness (HRC) 2 Increase in drill pipe service life 180% 3 Crack sensitivity No cracks visible to the naked eye. 4 Re-welding repair performance Excellent 5 Abrasion Resistance Test (ASTM G65 Standard / Abrasion Weight Loss) ≤0.18 mg 6 Casing wear (Muller test method) ≤36 cubic millimeters 7 Surface quality Smooth surface, free of defects. 8 Impact resistance Excellent High-performance, wear-resistant belt material, specifically engineered for demanding drilling conditions, protects drill pipes from abrasion and safeguards casing, significantly extending the service life of drilling tools.
• LW800 Abrasion-Resistant Belt Technical Data Sheet
Eight Core Performance Metrics
Serial number Performance Item Technical Specifications 1 Hardness ≥60 Rockwell Hardness (HRC) 2 Increase in drill pipe service life 240% 3 Crack sensitivity No cracks visible to the naked eye. 4 Re-welding repair performance Good 5 Abrasion Resistance Test (ASTM G65 Standard / Abrasion Weight Loss) ≤0.11 mg 6 Casing wear (Muller test method) ≤40 cubic millimeters 7 Surface quality Smooth surface, free of defects. 8 Impact resistance Good High-performance, wear-resistant belt material, specifically engineered for demanding drilling conditions, protects drill pipes from abrasion and safeguards casing, significantly extending the service life of drilling tools.
Frequently Asked Questions (FAQ)
Q: What are the differences among the LW600, LW700, and LW800?
A: The hardness and wear resistance grades differ.
Q: Will the wear strip damage the casing?
A: No, it was specifically designed to minimize casing wear.
FAQs
Need more technical support?
Can the internal coating be repaired or repainted?
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?
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?
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?
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?
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.
Hardbanding
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We offers a wealth of product support resources, including a range of technical and downloadable product manuals to product certifications.
Customization Product Catalog
We can customize high-performance drill pipe assemblies of various sizes according to customer needs.
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052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
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