News
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Versatile Applications of Rollers Across Industries
Rollers, as critical mechanical components, are widely utilized across industries for efficient load-bearing and motion control. In logistics, conveyor rollers streamline material handling, while manufacturing relies on precision rollers for automated machinery. However, their role in the oil ind...Read more -
Power Tongs in Oil Drilling: Precision and Efficiency
Power tongs are indispensable mechanized tools in oil drilling, designed to safely and efficiently make up (tighten) or break out (loosen) threaded connections between drill pipes, casing, and tubing. Replacing manual labor, these hydraulically or electrically driven devices ensure precise torque...Read more -
WELONG Successfully Participated in Neftegaz 2025 in Moscow
From April 14th to 17th, 2025, WELONG had the pleasure of exhibiting at Neftegaz 2025 – International Exhibition for Equipment and Technologies for Oil and Gas Industries, held at the Expocentre Fairgrounds in Moscow, Russia. As one of the leading events in the oil and gas sector, Neftegaz provi...Read more -
Technical Overview of Landing Nipple
1. Introduction In the exploration and development of oil and gas resources, the accurate deployment and positioning of downhole tools are critical to operational safety and efficiency. The Landing Nipple is one of the essential components in the well completion system, providing a standard...Read more -
How to Select a Stabilizer Supplier from a Technical Perspective
In the oil and gas drilling industry, stabilizers play a vital role in ensuring proper casing placement and cementing quality. Choosing the right stabilizer supplier is not merely a procurement decision—it is a strategic step that directly impacts well integrity, operational efficiency, and safet...Read more -
Our Brief Inspection Requirements for Drilling Tool Materials
Chemical Composition: Elements other than the major ones with a content greater than 0.10 wt% must be included in the chemical composition report. Steel Ingot Re-inspection: Upon arrival at the factory, steel ingots must undergo chemical composition re-inspection, with grain size and cleanliness...Read more -
Introduction to Sleeve Stabilizer
Sleeve stabilizer is a commonly used downhole tool in oil drilling operations, mainly used to stabilize the drill string, control wellbore inclination, reduce wellbore contact wear, and improve drilling efficiency. It is usually installed on drilling components such as drill rods or weighted dril...Read more -
4130 vs. 4330 Forging Parts: A Comparative Analysis for High-Performance Applications
Forged components made from Chromoly 4130 and 4330 steels are critical in industries demanding high strength, durability, and resistance to extreme conditions. While both alloys share similarities, their distinct compositions and performance characteristics make them suitable for different engine...Read more -
4130 Forging Parts: Strength and Versatility in Engineering Applications
Chromoly 4130 steel is a high-performance low-alloy steel renowned for its exceptional strength-to-weight ratio, weldability, and adaptability to heat treatment. Composed of chromium (0.8–1.1%) and molybdenum (0.15–0.25%), this material is widely used in forging critical components across aerospa...Read more -
Technical Overview: X-Overs (Crossover Subs) in Oil and Gas Applications
In the complex and high-demand operations of the oil and gas industry, downhole tool compatibility is essential for safe, efficient, and uninterrupted performance. Among the components that ensure this compatibility, X-Overs—commonly known as Crossover Subs—play a pivotal role. These tools functi...Read more -
High-Quality Drilling Tools(3)
API Drill Pipe Connections and Threads – Reliable and Durable Solutions for Oil Drilling At WELONG, we specialize in manufacturing and supplying API-certified drill pipes with high-strength connections and threads. The drill pipe connection is a crucial part of the drill string, directly impactin...Read more -
The Similarities and Differences Between Centralizers and Stabilizers
In the oil and gas drilling industry, downhole tools play a crucial role in ensuring safe, efficient, and accurate drilling operations. Among the wide array of tools used in the bottom hole assembly (BHA), two common yet often confused components are centralizers and stabilizers. While they both ...Read more
