Geological drilling seamless steel pipes are manufactured from solid steel billets through piercing, hot rolling, or cold drawing processes, resulting in weld-free pipe materials specifically designed for applications such as geological surveys, mineral exploration, core drilling, well drilling, engineering pile foundations, and mining operations.
Product Specifications: 4-1/4 "to 8-5/8"
Steel grade: ZT380–ZT740
Geological drilling seamless steel pipes are high-strength seamless tubes specifically designed for geological exploration drilling. Featuring weld-free construction, exceptional strength, high toughness, and resistance to torsion and wear, they ensure safe, efficient, and durable drilling operations.
Free from weld seams, it resists cracking or pipe rupture at weld joints, and exhibits significantly superior resistance to high pressure, torsional stress, and impact forces compared to welded pipes.
Manufactured from high-quality carbon structural steel and alloy steels (such as 45#,40Mn2, and 35CrMo), these materials undergo heat treatment to exhibit excellent tensile, compressive, torsional, and bending resistance properties, making them suitable for hard rock and fractured strata.
It features excellent roundness of both inner and outer diameters, uniform wall thickness, high drilling concentricity with minimal deviation, smooth drilling operation during insertion and removal, and low risk of drill jamming.
Both ends can be machined with specialized conical threads or trapezoidal threads for drilling, ensuring secure connection and excellent sealing performance, while allowing repeated disassembly and reuse.
With pure material and dense structure, it exhibits excellent wear and impact resistance, is suitable for use in muddy water, mineral water, and weakly acidic/alkaline geological environments, and resists corrosion and perforation.
Ranging from small-diameter core tubes to large-diameter well casing and drill bits, covering shallow, deep, and ultra-deep geological exploration applications.
The seamless integral design prevents fractures, bulging, or pipe bursts during drilling, significantly reducing downhole incidents.
Exhibits excellent roundness and straightness, precise thread fit, stable drilling without deviation, high core sampling efficiency, and rapid construction progress.
Although the unit price is higher than that of welded pipes, they are less prone to damage, require fewer work stoppages and pipe replacements, resulting in lower overall drilling costs.
It is universally applicable to geological prospecting, hydrogeological wells, highway and railway pile foundations, mine ventilation and drainage systems, as well as shallow-layer exploration in oil fields.
Produced in strict compliance with the API 5CT standard, ensuring stable and reliable quality.
With years of expertise in oil casing processing and manufacturing, the company boasts advanced equipment, precision testing instruments, and large-scale production capabilities, delivering products of exceptional quality.
Our professional technical team provides rapid after-sales support to ensure the safe and effective operation of products.
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