News
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The Guardian of the Oil Industry” — An In-Depth Look at Pipeline Blowout Preventers (BOPs)
In the oil and gas industry, safety is always the top priority. To prevent dangerous well kicks and blowouts during drilling operations, a critical piece of equipment is used: the Pipeline Blowout Preventer (BOP). Often referred to as the “bodyguard” of the oilfield, the BOP plays a v...Read more -
Roller Reamer – Enhancing Hole Quality and Drilling Stability
The roller reamer is a crucial downhole tool used in oil and gas drilling operations. It serves dual purposes: maintaining borehole size and stabilizing the drill string while drilling through abrasive or challenging formations. A roller reamer consists of a rugged body equipped with rotating rol...Read more -
How Are Folds Formed in Forging and How Can They Be Prevented?
In metal forging, a fold—also referred to as a lap or forging lap—is a type of defect that occurs when surface material flows over itself without properly bonding, creating a seam-like discontinuity. This can severely compromise the mechanical performance of a forged component, especially in crit...Read more -
A Steel Material For Drilling Tools
Refining Steel Quality for Demanding Drilling Applications: A Metallurgical Perspective In modern drilling operations—whether for oil, gas, or geothermal energy—tool reliability is paramount. Among these tools, drill bits are critical components that face continuous high-impact, abrasive, and the...Read more -
Retained Mandrel
The retained mandrel is a crucial tool used in the production of seamless steel pipes. It serves as an internal support during the hot rolling process, helping to shape the pipe and ensure consistent internal dimensions and wall thickness. Material Manufactured from high-quality H13 tool steel, ...Read more -
Drill collar
The drill collar is located at the bottom of the drill string and is the main component of the lower drilling tool assembly. Its main characteristics are a large wall thickness (usually 38-53mm, equivalent to 4-6 times the thickness of the drill pipe wall), with significant gravity and stiffness....Read more -
Drill Pipe Handling Precautions Before Running in Hole
From China Welong | renee@welongpost.com Ensuring safe, efficient, and damage-free handling of drill pipe before running in hole is essential for maintaining the integrity of the drill string and reducing operational risks. At China Welong, we not only provide high-performance drill pipes but als...Read more -
The Critical Guardian: Blowout Preventers in Oil Drilling
During oil drilling, immense underground pressures pose a constant risk of uncontrolled flow – a blowout. This is where the Blowout Preventer (BOP) becomes indispensable. It is a massive, specialized valve stack mounted directly on the wellhead, acting as the last line of defense against catastro...Read more -
Does Uneven Grain Structure Affect the Fatigue Life of Forgings?
Yes—uneven grain structure can significantly affect the fatigue life of forged components. In metallurgical terms, grain structure refers to the arrangement, size, and uniformity of the crystalline grains within a metal. During forging, metal is plastically deformed at high temperatures, which ca...Read more -
Developing High-Quality Steel for Drill Bit Applications – Key Considerations
Drill bits used in resource extraction and geological exploration are subjected to some of the harshest operational conditions in the industry. To meet the performance demands of deep drilling environments, particularly in hard rock formations or deep wells, the steel material used for producing ...Read more -
Hole Opener
The Hole Opener is a critical tool used in drilling operations to enlarge the borehole diameter. It is commonly applied in oil, gas, mining, and geothermal drilling, and is engineered to perform reliably under a wide range of formation conditions. Material Options: AISI 4145H MOD AISI 4140 AISI ...Read more -
Types of drilling tools
Hoisting In order to lift and lower drilling tools, lower casing, control drilling pressure, and feed drilling tools, the drilling tools are equipped with a lifting system. The lifting system includes winches, auxiliary brakes, overhead cranes, traveling blocks, large hooks, wire ropes, as well a...Read more
