Tungsten carbide threaded nozzle
In the process of deep well drilling in the oil and gas industry, the PDC bit drilled in rock formations is always faced with extreme working conditions such as acid corrosion, abrasion, and high-pressure impact. The tungsten carbide threaded nozzle customized by Zhuzhou Chuangrui stands out among many nozzle products with high durability, wear resistance and high adaptability, and has become the best choice for PDC drill bit nozzles, which can greatly improve the efficiency of PDC drill bit drilling rock formations.
Application scenarios of nozzles in drilling operations
During downhole operation of the drill bit, the drilling fluid plays the role of washing, cooling and lubricating the drill teeth through the threaded nozzle; At the same time, the high-pressure fluid ejected from the nozzle helps to break up the rock and clean the bottom of the well.
Extreme conditions in drilling operations
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Description of the operating conditions |
Requirements analysis |
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High-pressure abrasive erosion |
The downhole drilling fluid carries cuttings at a high speed of >60m/s to impact the surface of the nozzle, and the nozzle of ordinary material is susceptible to erosion and wear deformation, resulting in the attenuation of the mud flow rate and dragging down the rock breaking efficiency. | Zhuzhou Chuangrui recommends CR11, which has excellent hardness, impact toughness and corrosion resistance, and is the most cost-effective choice to meet the needs of most drilling scenarios. |
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Acid corrosion fatigue |
The H2S/CO2 acid environment accelerates metal corrosion, which causes the size deviation of the nozzle throat diameter, which affects the accuracy of the mud jet and the cleanliness of the cuttings. | |
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Adaptation and debugging |
Inferior nozzles need to be drilled and replaced frequently, and the traditional single-thread structure is easy to cause installation damage and loss of effective operation time. | Zhuzhou Chuangrui has been producing all kinds of standard threaded nozzles. Strict control of tolerance, all of which have been well evaluated by customers. |
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Specification matching challenges |
Different rock hardness and drilling fluid viscosity require different nozzle throat diameter/flow channel design. | |
Oil & Gas Wear Resistant Nozzle Solutions
In response to the pain points of the above oil and gas drilling scenarios, Zhuzhou Chuangrui Cemented Carbide Co., Ltd. has launched a series of high-performance wear-resistant nozzle products.
Preferred Grades
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Grade |
Hardness HRA |
Density g/cm³ |
T.R.S N/mm² |
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YG11 |
89.5±0.5 |
14.35±0.05 |
≥3500 |
Product Type
Standard products: cross groove type, plum blossom tooth type, hexagonal type, hexagonal type and other types of threaded structure nozzles, suitable for all kinds of assembly methods.
Customized products: For more thread type nozzles, please contact us for customized production for you.
Post time: Apr-24-2025