In which industries is drill pipe thread oil mainly used
Drill pipe thread oil (also known as drill pipe thread grease, drill pipe thread lubricant) is a special lubricating and protective agent designed specifically for drill pipe thread connections. Its core function is to lubricate threads, seal and prevent leakage, and prevent sticking/corrosion. Its application scenarios are highly concentrated in industries that require the use of drill pipes for
Drill pipe thread oil (also known as drill pipe thread grease, drill pipe thread lubricant) is a special lubricating and protective agent designed specifically for drill pipe thread connections. Its core function is to lubricate threads, seal and prevent leakage, and prevent sticking/corrosion. Its application scenarios are highly concentrated in industries that require the use of drill pipes for drilling operations, mainly including the following categories:
1. Oil and gas extraction industry (core application areas)
In the exploration and development of oil and natural gas, it is necessary to transmit torque and transport drilling fluid to depths ranging from kilometers to tens of thousands of meters underground through a "drill string" (composed of multiple drill rods connected by threads). Drill string thread oil is a key consumable to ensure operational safety:
Application link: thread assembly before drilling the drill pipe into the well, thread lubrication during maintenance of the drill pipe;
Core requirement: In high-pressure (tens to hundreds of megapascals) and high-temperature (up to 150 ℃ or above) environments underground, it is necessary to seal the drilling fluid with threaded oil (to avoid leaking and polluting the formation or affecting drilling efficiency), while preventing the threads from sticking due to metal contact friction (thread biting, causing the drill pipe to be unable to be disassembled or damaged), and resisting the corrosion of chemical substances in the drilling fluid (such as saltwater and acidic fluids) on the threads.
2. Geological exploration and mineral extraction industry
Geological exploration (such as mineral resource survey) and solid mineral mining (coal, metal ore, non-metal ore, etc.) require "core drilling" or "tunnel drilling" through drill pipes to obtain underground rock samples or construct ventilation/transportation channels. The role of drill pipe thread oil is:
Application link: Drill pipe connection for exploration drilling rigs and mining drilling rigs;
Core requirement: To cope with complex geological environments (such as damp rock layers and acidic groundwater containing minerals) and prevent thread corrosion; At the same time, during frequent lifting and dismantling of drill rods, reduce thread wear and extend the service life of drill rods (mining drill rods require thread oil to strengthen protection due to the harsh working environment and faster thread wear).
3. Water well and geothermal drilling industry
Both civil/industrial deep wells (for water extraction) and geothermal resource development (for extracting underground heat energy) require drilling into depths of tens to thousands of meters underground through drill pipes. The application scenarios of drill pipe thread oil include:
Application link: assembly of drill pipe threads for water well drilling rigs and geothermal drilling rigs;
Core requirement: Geothermal drilling often faces high temperatures (underground temperatures can reach over 200 ℃ with increasing depth) and high humidity environments, requiring thread oil to have temperature resistance to avoid oil failure and poor sealing under high temperatures (such as leakage of well water or geothermal fluids); At the same time, prevent minerals (such as calcium and magnesium ions) in groundwater from scaling at the threads, which can affect the disassembly of drill pipes.
4. Infrastructure and engineering drilling industry
In infrastructure projects such as roads, bridges, and high-rise buildings, it is necessary to use "engineering drilling" (such as survey holes and pile foundation hole drilling) to understand the properties of underground soil/rock layers, or to carry out foundation pit dewatering well construction. Drill pipe thread oil is mainly used for:
Application link: Drill pipe connection for engineering drilling rigs (such as rotary drilling rigs and impact drilling rigs);
Core requirement: Infrastructure drilling is often carried out in shallow layers of the surface (usually within tens of meters), but the operating environment is complex (such as mud and sewage), requiring thread oil to have a certain degree of resistance to water erosion to prevent grease from being washed away by mud and water. At the same time, lubricating the threads can reduce the torque consumption of the drilling rig and improve drilling efficiency.
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