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Lifting Sub
Description
- 产品描述
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Product Overview
The lifting sub serves as a connection point for hoisting equipment during pipe handling operations. Available in two configurations—Type A (18° shoulder) and Type B (90° shoulder)—it is manufactured from high‑strength alloy steel and features API threads. It is an essential tool for safely lifting and moving heavy drillstring components, such as drill pipes, heavy drill collars, and other tools.
Product Description
• Basic Information: Lifting subs are specialized tools designed for the safe lifting and handling of heavy drillstring components. They provide secure attachment points for elevators and other lifting equipment. Type A products feature an 18° shoulder, while Type B products have a 90° shoulder. These components are manufactured from high‑strength alloy steel and machined with precision API threads. Their design ensures the safe and efficient handling of drill pipes, drill collars, stabilizers, and other tubular drilling assemblies.
• Application scenario: Drill string handling and lifting operations. Serves as the connection interface for elevators used with drill pipes, heavy-weight drill pipes, stabilizers, and drill‑string assemblies, playing a critical role in ensuring safe make‑up and break‑out operations.
• Product Advantages: Available in two configurations—Type A (18°) and Type B (90°). Manufactured from high-strength alloy steel. Meets API thread standards. Robust and durable, with reliable performance. Custom sizes available.
• Customer Feedback: Widely used on both onshore and offshore drilling rigs for the safe handling of drill pipes and drill tools. Customers highly commend its reliable lifting performance and operational safety.
Frequently Asked Questions (FAQ)
Q: What is the difference between Type A and Type B?
A: Type A features an 18° shoulder; Type B features a 90° shoulder.
Q: What is its purpose?
A: Provides attachment points for lifting equipment.
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.
Lifting Sub
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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