-
Drill Pipe
View Products
Heavy Weight Drill Pipe
View Products
Drill Collar
View Products
Kelly
View Products
Tool Joint
View Products
Surface Protection & Internal Coating
View Products
Specialty Drill Products
View Products
-
-
-
-
Gas Drill Pipe
Description
- 产品描述
-
Product Overview
Natural gas drill pipes are specifically designed for drilling operations in natural gas wells, manufactured from high‑strength steel grades in accordance with API 5DP standards, and capable of withstanding the demanding conditions of gas fields. The products offer sulfur‑resistant grades (SS95, SS105, SS135) suitable for environments containing hydrogen sulfide (H₂S), and are ideal for high‑pressure gas wells and deep‑zone gas field development. Each drill pipe undergoes 100% nondestructive testing (NDT) and is accompanied by a complete Material Test Certificate (MTC).
Product Description
• Basic Information: Natural gas drill pipes are specifically engineered to address the unique challenges of natural gas extraction, including high pressure, corrosive environments, and deep-well operating conditions. The products are manufactured in strict accordance with API 5DP standards, available in steel grades S135 and V150, and can be equipped with double‑tapered connections to deliver enhanced torque‑carrying capacity. For sulfur‑containing environments, we offer H2S‑resistant grades that comply with NACE MR0175 / ISO 15156 standards.
• Application scenarios: Natural gas exploration and production wells; high-pressure gas fields; sour gas wells containing hydrogen sulfide (H2S); ultra‑deep wells exceeding conventional API rating ranges; suitable for onshore and offshore natural gas development projects.
• Product Advantages: High‑strength steel grades suitable for deep gas wells. Sulfide‑resistant options (SS95/105/135) designed for H₂S‑contaminated environments. Double‑shoulder drill pipe joints with enhanced torsional strength. Complete Material Test Certificates (MTC) and 100% nondestructive testing (NDT) are provided.
• Customer Case Feedback: Successfully deployed in natural gas fields across Russia and Central Asia. Customers report reliable performance in high-pressure wells containing hydrogen sulfide (H2S).
Frequently Asked Questions (FAQ)
Q: What is a sulfur-resistant drill pipe?
A: It is specifically designed for environments containing hydrogen sulfide (H2S) and complies with NACE MR0175 / ISO 15156 standards.
Q: Can you supply drill pipes of V150 steel grade?
A: Yes, we offer V150‑grade drill pipes suitable for ultra-deep wells.
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.
Gas 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
Telephone
Phone/Wechat
Address
052260, East of Beikou, Yingli Town, Jinzhou County, Shijiazhuang City, Hebei Provice, China.
Get in Touch
* Fill in your phone number and email information, and we will promptly contact you within one business day to address your concerns as soon as possible.