During drilling operations, pay attention to these key points for your drill rods and connections—and effortlessly double their lifespan!
14 Mar,2019
During drilling operations, pay attention to these key points for your drill rods and connections—and effortlessly double their lifespan!
In geological exploration work, the role of geological drill rods and connections—often referred to as "fine-tuning" components—is crucial. They enable critical operations such as applying drilling pressure, transmitting power, circulating drilling fluids, cementing, and even addressing downhole emergencies. However, these drill rods and connections demand high-quality materials, as standard ones typically cannot withstand the intense pressures generated during drilling.
The steel materials used in the drill rods and connections produced by Weilida are exclusively sourced from major enterprises such as Baosteel, ensuring they resist fatigue, bending, and breakage with exceptional durability. These components deliver consistently reliable performance. Specifically, the rod bodies are made from specialized geological alloy steel tubes—R780 and DZ60—while the drill rod connections are crafted from high-quality alloy structural steel (42CrMo), which undergoes advanced vacuum heat treatment and nitriding processes. This rigorous manufacturing process significantly enhances their resistance to fatigue and wear, making them ideal for demanding drilling applications.
While standard materials or low-cost drill rods and connectors may reduce the contractor’s initial investment, opting for high-quality drill rods and connectors produced using advanced equipment and backed by three decades of experience ensures a longer service life, lower failure rates, and ultimately delivers greater long-term cost savings and benefits.
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Proper maintenance and care of drill rods and connections during the exploration process are crucial for effectively reducing unnecessary damage, thereby saving costs associated with frequent replacements.
Weilida is here to offer you the following tips, hoping they’ll be helpful to you.
1. The initial make-up of the new drill pipe joint and the first few runs during drilling are crucial for extending the joint's lifespan. When using a new joint for the first time, it’s essential to avoid forcing the connection if the threads aren’t properly aligned. During make-up, the thread crests may occasionally jam against each other—simply back off slightly until the threads clear, then proceed with tightening. Make sure to tighten slowly, and finally secure the connection firmly using the power tong.
2. Before connecting, the threads and shoulder surfaces of both male and female fittings must be thoroughly wiped clean. After cleaning, be sure to dry the threads completely to ensure that the thread lubricant adheres properly to the thread surface.
3. When moving drill rods or placing them onto the drill derrick, always wear thread protectors to prevent damage to the drill rod joint threads. For drill rods and joints that are not in use, securely fasten clean, protective thread caps by hand—this practice is highly beneficial for safeguarding both the shoulder surfaces and the threaded connections.
4. Drill pipe connections endure tremendous torque during operation. If no separation oil film forms between the connection threads, the threads will wear and seize under this intense torque. Thread lubricant effectively provides this crucial oil film.
Weidilida kindly reminds you: Please don’t dilute the thread lubricant too much just for ease of application, as a weakened thread lubricant will reduce its ability to properly fill and coat the metal threads, ultimately rendering it ineffective.
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