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Welded Heavy Weight Drill Pipe
Description
- 产品描述
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Product Overview
This welded heavy‑weight drill pipe (HWDP) is manufactured by friction welding the joint to the pipe body. The pipe body is made of 1340 steel, while the joint is fabricated from 4137H/4145H steel. While maintaining reliable performance, it offers a more cost‑effective solution. The weld zone undergoes 100% ultrasonic inspection. Standard and custom lengths are available, with hardbanding provided as an option.
Product Description
• Basic Information: Welded heavy‑weight drill pipe (HWDP) is the most common type of heavy‑weight drill pipe, manufactured by friction welding an extra‑long joint to a thick‑walled pipe body. The friction welding process produces a uniform solid‑state bond without the need for filler metal. The pipe body is made from 1340 steel, while the joints are forged from 4137H or 4145H alloy steel. A thickened section in the middle of the pipe body (the intermediate thickened zone) provides additional wear resistance.
• Application scenarios: Suitable for standard drilling operations requiring cost-effective heavy‑weight drill pipe; applicable to vertical and directional wells; serves as the transition section between drill pipe and drill collars; compatible with most conventional drilling applications.
• Product Advantages: More cost-effective than solid heavy‑weight drill pipes; weld zones undergo comprehensive inspection for reliable performance; certified to API 7‑1 standards; equipped as standard with wear‑resistant bands; fast delivery and customizable lengths available.
• Customer Feedback: Widely used in conventional drilling operations; customers highly praise its excellent cost-effectiveness and reliable weld quality.
Frequently Asked Questions (FAQ)
Q: How is the weld zone inspected? 100% ultrasonic testing is employed.
A: What is the typical delivery lead time? 15–30 days.
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.
Welded Heavy Weight Drill Pipe
OUR SERVICE
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.
Contact Us
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052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
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