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Oil Drill Pipe
Description
- 产品描述
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Product Overview
Oilfield drill pipes are specifically designed for oil exploration and production wells, manufactured in strict accordance with API 5DP standards, and available in steel grades ranging from E75 to U160. The products feature outside diameters from 2-3/8 inches to 6-5/8 inches and offer a wide variety of connection types, including NC, IF, FH, REG, PAC, SLH, and DS. They are suitable for both onshore and offshore drilling operations, encompassing vertical, directional, and horizontal wells. Each drill pipe undergoes 100% nondestructive testing (NDT) and is accompanied by a complete Material Test Certificate (MTC).
Product Description
• Basic Information: Oilfield drill pipe serves as the primary conduit for transmitting drilling fluid and rotational torque from the surface to the drill bit. Manufactured in accordance with API 5DP and NS-1 standards, it is available in multiple steel grades to meet varying well depths and torque requirements. The pipe body features a thickened‑end design (IU, EU, IEU) to enhance connection strength, while the connections are precision‑machined from high‑strength alloy steel and incorporate flow passages to ensure adequate fluid circulation.
• Application scenarios: Suitable for onshore and offshore oil and gas exploration and production wells. It is ideal for deep wells requiring high torque capacity, as well as for directional and horizontal drilling operations, and is also well-suited for extended-reach wells and high‑temperature, high‑pressure (HPHT) environments.
• Product Advantages: The product complies with API 5DP standards, covers multiple steel grades, and is suitable for various well conditions. It comes with a complete Material Test Certificate (MTC) and 100% Nondestructive Testing (NDT), ensuring full quality traceability. Optional wear‑resistant bands and internal coatings are available, and custom specifications can be accommodated.
• Customer Case Feedback: This product has been adopted by major oil companies in Russia, Egypt, Turkey, and Azerbaijan. Customers report outstanding performance in deep wells exceeding 3,000 meters in depth, with no quality-related complaints from field operators.
Frequently Asked Questions (FAQ)
Q: What is the difference between G105 and S135 steel grades?
A: G105 is suitable for shallow wells with a well depth of ≤4,000 meters; S135 is designed for ultra-deep wells and high-torque operations.
Q: Can you supply products in sour-service steel grades?
A: Yes, we offer products in the SS95, SS105, and SS135 steel grades.
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.
Oil 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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Address
052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
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