26 Dec 2025
BPMF Top Drive Parts
Core Purpose & Equipment Compatibility
This guide covers precision-machined drill pipe accessories, specifically designed foroil and gas drilling rigs, geothermal drilling equipment, and mineral exploration drilling machines. The accessories include centering sleeves, centering rings, die seats, and guide rings, which are critical components ensuring drill pipe alignment accuracy, reducing wear, and maintaining drilling stability. They are fully compatible with mainstream drill pipe models corresponding to sizes from 2 7/8" to 6 5/8", including API standard drill pipes and custom drilling equipment.
Target users include drilling contractors, oilfield operation companies, mining exploration enterprises, and drilling equipment maintenance service providers. The guide addresses core pain points such as accessory mismatch, frequent wear and tear, short service life, and drilling inefficiency caused by substandard accessories. It provides detailed product classification, technical parameters, material information, and usage precautions to serve as a comprehensive procurement and technical reference standard.
6 5/8" Drill Pipe Accessories
Designed for large-diameter 6 5/8" drill pipes, these accessories are engineered to withstand high torque and heavy-load conditions in deep oil and gas well drilling. They ensure precise centering of the drill pipe during high-pressure drilling operations, prevent lateral deviation, and protect the drill pipe and wellbore from excessive wear. Key advantages include strong load-bearing capacity and excellent corrosion resistance, adapting to harsh downhole environments such as high temperature and high salinity.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 197 / 9703641041 | High-strength alloy steel (4140H) with quenching and tempering treatment | 1. High-pressure friction with wellbore wall; 2. Impact load during drill pipe tripping; 3. Corrosion from downhole acidic/alkaline mud | 1. Inspect the surface for scratches or deformation before use; 2. Apply high-temperature resistant and anti-corrosion lubricant evenly; 3. Avoid rapid tripping to reduce impact force; 4. Regularly check wear degree during drilling, replace when wear exceeds 3mm |
Centering Ring | 216 / 9703641003 | Alloy steel (4340) with carburizing and grinding treatment | 1. Eccentric wear caused by drill pipe vibration; 2. Fatigue damage from long-term cyclic loading; 3. Abrasion from solid particles in drilling fluid | 1. Ensure the centering ring is correctly installed and fastened to avoid looseness; 2. Control drilling parameters to reduce drill pipe vibration amplitude; 3. Filter drilling fluid to reduce solid particle content; 4. Conduct non-destructive testing for fatigue cracks every 5 drilling cycles |
Die Seats | 216 / 9723641005 | Tungsten carbide-reinforced alloy steel | 1. High-temperature wear during thread machining of drill pipe; 2. Impact damage from uneven force application; 3. Oxidation at high temperature affecting material hardness | 1. Preheat the die seat to 80-100℃ before use to reduce thermal stress; 2. Ensure uniform force during operation to avoid local overload; 3. Cool with inert gas during high-temperature processing; 4. Store in a dry and low-humidity environment to prevent oxidation |
Guide Ring | 187 / 9703641048, 187 / 9703641045, 203 / 9723641004, 203 / 9703641006 | Stainless steel (316L) with polishing treatment | 1. Abrasion from contact with drill pipe joint; 2. Corrosion from downhole saltwater or chemical drilling fluid; 3. Deformation caused by improper installation | 1. Check the inner diameter of the guide ring to match the drill pipe joint size before installation; 2. Use corrosion-resistant coating for secondary protection in high-salinity environments; 3. Avoid knocking during installation to prevent deformation; 4. Clean the surface of drilling fluid residues after use |
5 1/2" Drill Pipe Accessories
Tailored for 5 1/2" medium-sized drill pipes, widely used in conventional oil and gas well drilling and coalbed methane exploration. These accessories feature precise dimensional tolerance to ensure tight fit with the drill pipe, effectively reducing vibration during drilling and improving drilling efficiency. They are suitable for medium-depth drilling scenarios and can adapt to moderate temperature and pressure conditions.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 197 / 9703641041 | High-strength alloy steel (4140H) with quenching and tempering treatment | 1. Friction wear with wellbore wall during drill pipe rotation; 2. Erosion from high-velocity drilling fluid; 3. Impact damage during tripping operations | 1. Inspect the surface wear condition before each use; 2. Apply wear-resistant lubricant to the contact surface; 3. Control the tripping speed to within 0.5m/s; 4. Replace the centering sleeve when the radial wear reaches 2.5mm |
Centering Ring | 216 / 9703641003 | Alloy steel (4340) with carburizing and grinding treatment | 1. Cyclic fatigue wear from repeated drill pipe rotation; 2. Abrasion from solid particles in drilling fluid; 3. Looseness-induced eccentric wear | 1. Ensure the locking bolt is tightened to the specified torque during installation; 2. Regularly clean the drilling fluid residues on the centering ring; 3. Monitor drill pipe vibration during drilling and adjust parameters in time; 4. Conduct magnetic particle testing for cracks every 8 drilling cycles |
Die Seats | 216 / 9723641005 | Tungsten carbide-reinforced alloy steel | 1. High-temperature wear during thread processing; 2. Local overheating caused by uneven force; 3. Wear from metal debris generated during processing | 1. Use a torque wrench to ensure uniform force application; 2. Cool the die seat with cutting fluid during processing; 3. Clean the metal debris in time to avoid secondary wear; 4. Store in a sealed container to prevent dust accumulation |
Guide Ring | 187 / 9703641048, 187 / 9703641045, 203 / 9723641004, 203 / 9703641006 | Stainless steel (316L) with polishing treatment | 1. Corrosion from chemical additives in drilling fluid; 2. Wear from repeated insertion and extraction of drill pipe joint; 3. Deformation caused by temperature changes | 1. Select compatible lubricants according to the type of drilling fluid; 2. Avoid rapid temperature changes of the guide ring; 3. Check the fit with the drill pipe joint regularly; 4. Clean and dry the guide ring after use and apply anti-rust oil |
5" Drill Pipe Accessories
Specialized for 5" drill pipes, commonly applied in onshore and offshore medium-depth oil and gas drilling. These accessories are designed with lightweight and high-strength characteristics, reducing the overall load of the drilling system while ensuring stability. They excel in resisting seawater corrosion and humid environment erosion, making them ideal for offshore drilling scenarios.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 168 / 9703641008 | Nickel-chromium alloy steel (30CrNiMo8) with quenching and tempering treatment | 1. Seawater corrosion in offshore drilling; 2. Friction wear with wellbore casing; 3. Fatigue damage from long-term alternating load | 1. Apply anti-corrosion coating specially designed for seawater before use; 2. Inspect the surface for corrosion spots regularly; 3. Control the drilling rotation speed to reduce alternating load; 4. Replace the centering sleeve when fatigue cracks are found |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (42CrMo4) with nitriding treatment | 1. Abrasion from sand particles in seawater; 2. Eccentric wear caused by drill pipe deviation; 3. Oxidation corrosion in humid air | 1. Install a filter at the drilling fluid inlet to reduce sand content; 2. Monitor the drill pipe deviation in real time and correct it in time; 3. Store the centering ring in a dry and ventilated warehouse when not in use; 4. Conduct anti-corrosion treatment every 3 months for unused accessories |
Die Seats | 168 / 9703641046, 168 / 9703641043 | Tungsten carbide-reinforced alloy steel | 1. High-temperature wear during thread tapping; 2. Impact damage from improper operation; 3. Corrosion from humid environment during storage | 1. Operate in strict accordance with the process parameters to avoid overheating; 2. Use a buffer pad during transportation and storage to prevent collision; 3. Store in a dehumidified warehouse with relative humidity below 60%; 4. Check the hardness of the die seat before use to ensure it meets the requirements |
Guide Ring | 168 / 9703641028, 168 / 9703641031 | Duplex stainless steel (2205) with polishing treatment | 1. Stress corrosion cracking caused by seawater and chloride ions; 2. Wear from drill pipe joint movement; 3. Deformation caused by installation stress | 1. Avoid excessive tightening during installation to reduce residual stress; 2. Use chloride-free cleaning agents for cleaning; 3. Regularly inspect for stress corrosion cracks using ultrasonic testing; 4. Apply anti-friction coating to the inner surface to reduce wear |
4 1/2" Drill Pipe Accessories
Optimized for 4 1/2" drill pipes, widely used in shallow to medium-depth oil and gas wells, geothermal wells, and mineral exploration wells. These accessories offer excellent dimensional accuracy and interchangeability, facilitating quick replacement during maintenance and reducing downtime. They are suitable for a variety of drilling fluid types and can adapt to different formation conditions.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 168 / 9703641008 | Nickel-chromium alloy steel (30CrNiMo8) with quenching and tempering treatment | 1. Friction wear with formation rock debris; 2. Corrosion from acidic drilling fluid in geothermal wells; 3. Impact damage during drill pipe connection | 1. Choose acid-resistant lubricants for geothermal drilling scenarios; 2. Clean the rock debris on the centering sleeve after each drilling interval; 3. Connect the drill pipe smoothly to avoid impact; 4. Replace the centering sleeve when the wear depth exceeds 2mm |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (42CrMo4) with nitriding treatment | 1. Cyclic wear from drill pipe rotation; 2. Abrasion from solid particles in drilling fluid; 3. Looseness caused by vibration leading to abnormal wear | 1. Tighten the fixing screws according to the specified torque and check regularly; 2. Use drilling fluid with appropriate viscosity to reduce solid particle settlement; 3. Monitor the vibration frequency of the drill pipe and adjust drilling parameters; 4. Conduct periodic non-destructive testing to detect wear early |
Die Seats | 168 / 9703641046, 168 / 9703641043 | Tungsten carbide-reinforced alloy steel | 1. High-temperature wear during thread machining; 2. Wear from metal chips adhering to the surface; 3. Deformation caused by uneven cooling after processing | 1. Use cooling fluid continuously during machining to control temperature; 2. Remove metal chips in time to prevent scratching; 3. Cool the die seat slowly after processing to avoid thermal deformation; 4. Store in a flat and dry place to prevent bending |
Guide Ring | 168 / 9703641028, 168 / 9703641031 | Duplex stainless steel (2205) with polishing treatment | 1. Corrosion from geothermal fluid containing sulfur; 2. Wear from repeated insertion of drill pipe joint; 3. Damage from collision during transportation | 1. Use anti-sulfur corrosion coating for geothermal drilling; 2. Handle with care during transportation and avoid dropping; 3. Check the inner diameter size regularly to ensure it matches the drill pipe; 4. Clean the guide ring with neutral detergent after use |
4" Drill Pipe Accessories
IF Thread Type
Designed for 4" drill pipes with IF (Internal Flush) threads, mainly used in deep well drilling and high-pressure drilling scenarios. The IF thread design ensures smooth fluid flow inside the drill pipe, and these accessories are matched with the thread structure to provide reliable centering and guidance functions. They are characterized by high pressure resistance and strong fatigue resistance, adapting to the harsh conditions of deep well drilling.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 168 / 9703641008 | High-strength alloy steel (4140H) with quenching and tempering treatment | 1. High-pressure friction in deep well environment; 2. Corrosion from high-temperature downhole fluid; 3. Fatigue damage from long-term high-load operation | 1. Use high-temperature and high-pressure resistant lubricants; 2. Monitor the downhole temperature and pressure in real time to avoid exceeding the accessory's bearing capacity; 3. Shorten the inspection cycle for deep well operations to once per drilling interval; 4. Replace the centering sleeve when the fatigue life is reached |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (4340) with carburizing treatment | 1. Eccentric wear caused by drill pipe deflection in deep wells; 2. Abrasion from high-velocity drilling fluid carrying rock debris; 3. High-temperature oxidation affecting surface hardness | 1. Use a centralizer to reduce drill pipe deflection; 2. Improve the filtering effect of drilling fluid to reduce rock debris content; 3. Apply high-temperature anti-oxidation coating to the surface; 4. Conduct hardness testing regularly to ensure performance |
Die Seats | 168 / 9703641046, 168 / 9703641043 | Tungsten carbide-reinforced alloy steel | 1. High-temperature wear during IF thread processing; 2. Impact damage from high-pressure thread making; 3. Corrosion from deep well fluid | 1. Precisely control the processing temperature and pressure; 2. Use a rigid fixture to fix the die seat during processing to avoid vibration; 3. Clean the die seat with high-pressure air after processing; 4. Store in a sealed and dry environment to prevent corrosion |
Guide Ring | 168 / 9703641028, 168 / 9703641031 | Stainless steel (316L) with polishing treatment | 1. Corrosion from deep well acidic fluid; 2. Wear from IF thread joint movement; 3. Deformation caused by high-temperature and high-pressure environment | 1. Select acid-resistant materials and coatings for acidic deep wells; 2. Ensure the guide ring is fully lubricated before use; 3. Check the dimensional stability after each deep well operation; 4. Replace the guide ring if deformation is found |
FH Thread Type
Suitable for 4" drill pipes with FH (Full Hole) threads, commonly used in medium-depth oil and gas wells and coalbed methane drilling. The FH thread provides good sealing performance, and these accessories are designed to match the thread size, ensuring the drill pipe's centering accuracy and guiding performance during drilling. They have good interchangeability and are easy to install and maintain, reducing the labor intensity of on-site operations.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 139 / 9703641053 | Alloy steel (42CrMo4) with quenching and tempering treatment | 1. Friction wear with wellbore wall; 2. Corrosion from coalbed methane formation water; 3. Impact damage during drill pipe tripping | 1. Apply anti-corrosion lubricant suitable for formation water; 2. Control the tripping speed to reduce impact; 3. Inspect the surface for wear and corrosion regularly; 4. Replace the centering sleeve when necessary |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (4340) with nitriding treatment | 1. Vibration-induced fatigue wear; 2. Abrasion from coal dust and rock debris; 3. Looseness caused by improper installation | 1. Tighten the fixing bolts according to the standard torque; 2. Clean the coal dust and rock debris on the centering ring in time; 3. Adjust drilling parameters to reduce vibration; 4. Conduct periodic inspection and maintenance |
Die Seats | 139 / 9703641055, 139 / 9703641056 | Tungsten carbide-reinforced alloy steel | 1. Wear during FH thread processing; 2. Impact damage from uneven force; 3. Corrosion from humid environment | 1. Operate with uniform force during thread processing; 2. Use cooling fluid to reduce temperature rise; 3. Store in a dry and ventilated place; 4. Check the thread processing quality regularly |
Guide Ring | 139 / 9703641057, 139 / 9703641058 | Stainless steel (316L) with polishing treatment | 1. Wear from FH thread joint movement; 2. Corrosion from coalbed methane drilling fluid; 3. Deformation caused by collision | 1. Ensure the guide ring is correctly aligned with the thread joint; 2. Use compatible drilling fluid additives to avoid corrosion; 3. Handle with care during transportation and installation; 4. Clean and maintain after use |
3 1/2" Drill Pipe Accessories
Customized for 3 1/2" small-diameter drill pipes, widely used in shallow oil and gas wells, water well drilling, and small-scale mineral exploration. These accessories are lightweight and compact, suitable for narrow drilling spaces. They have good wear resistance and corrosion resistance, adapting to the relatively mild conditions of shallow drilling, while ensuring the drilling efficiency and stability of small-diameter drill pipes.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 139 / 9703641053 | Alloy steel (4140) with quenching and tempering treatment | 1. Friction wear with shallow formation rock; 2. Corrosion from surface water and shallow groundwater; 3. Impact damage during drill pipe connection | 1. Apply common wear-resistant lubricant before use; 2. Clean the surface of sediment and water stains after use; 3. Connect the drill pipe gently to avoid impact; 4. Inspect the centering sleeve for damage before each use |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (42CrMo) with nitriding treatment | 1. Vibration wear during shallow drilling; 2. Abrasion from sand and gravel in shallow formations; 3. Looseness caused by insufficient tightening | 1. Tighten the fixing screws firmly; 2. Use a screen to filter sand and gravel in the drilling fluid; 3. Adjust the drilling speed to reduce vibration; 4. Check the tightness regularly during drilling |
Die Seats | 127 / 9703641047, 127 / 9703641044 | Tungsten carbide-reinforced alloy steel | 1. Wear during thread processing of small-diameter drill pipes; 2. Local overheating caused by improper operation; 3. Corrosion from humid storage environment | 1. Use a small torque wrench for precise force control; 2. Cool the die seat in time during processing; 3. Store in a dry and covered place; 4. Check the dimensional accuracy before use |
Guide Ring | 127 / 9703641029, 127 / 9703641032 | Stainless steel (304) with polishing treatment | 1. Wear from small-diameter drill pipe joint movement; 2. Corrosion from shallow groundwater containing minerals; 3. Deformation caused by improper storage | 1. Ensure the guide ring matches the small-diameter drill pipe joint; 2. Clean the surface with clean water after use; 3. Store in a flat and dry place to avoid extrusion; 4. Apply anti-rust oil for long-term storage |
2 7/8" Drill Pipe Accessories
Specialized for 2 7/8" ultra-small diameter drill pipes, mainly used in micro-drilling projects such as geological exploration, small-scale water well drilling, and pipeline horizontal drilling. These accessories are designed with ultra-precise dimensions to ensure the smooth operation of ultra-small diameter drill pipes in narrow spaces. They are lightweight, easy to carry and install, and suitable for field operations with limited conditions.
Accessory Type | Part Number | Material | Main Wear Causes | Usage Precautions to Avoid Damage |
Centering Sleeve | 139 / 9703641053 | Lightweight alloy steel (20CrMnTi) with quenching and tempering treatment | 1. Friction wear in narrow wellbore; 2. Corrosion from field rainwater and humid air; 3. Impact damage during field transportation | 1. Wrap the centering sleeve with protective film during transportation; 2. Store in a waterproof and moisture-proof toolbox in the field; 3. Apply lubricant before use to reduce friction; 4. Inspect for damage after transportation |
Centering Ring | 197 / 9703641025, 197 / 9703641030 | Alloy steel (42CrMo) with nitriding treatment | 1. Vibration wear during micro-drilling; 2. Abrasion from fine sand in the formation; 3. Looseness caused by field operation vibration | 1. Use lock washers to prevent loosening; 2. Filter the drilling fluid to remove fine sand; 3. Reduce the drilling speed appropriately to reduce vibration; 4. Check the tightness during field breaks |
Die Seats | 127 / 9703641047, 127 / 9703641044 | Tungsten carbide-reinforced alloy steel | 1. Wear during ultra-small diameter thread processing; 2. Damage from improper operation with small tools; 3. Corrosion from field humid environment | 1. Use special small tools for operation to ensure precision; 2. Clean the die seat with a brush after processing; 3. Store in a moisture-proof container with desiccant; 4. Check the thread processing quality carefully |
Guide Ring | 127 / 9703641029, 127 / 9703641032 | Stainless steel (304) with polishing treatment | 1. Wear from ultra-small diameter drill pipe joint movement; 2. Corrosion from field rainwater and soil moisture; 3. Deformation caused by extrusion during storage | 1. Place the guide ring in a separate compartment of the toolbox to avoid extrusion; 2. Clean the surface with a dry cloth after field use; 3. Apply anti-rust oil before long-term storage; 4. Ensure the guide ring is fully aligned during installation |
Procurement Guidance
Choosing the right drill pipe accessories is crucial to ensuring drilling efficiency, reducing maintenance costs, and extending the service life of drilling equipment. Our drill pipe accessories are manufactured with strict quality control standards, using high-quality materials and precision machining processes to meet the requirements of various drilling scenarios. Whether you need accessories for large-diameter deep well drilling or ultra-small diameter micro-drilling, we can provide matching products according to your specific drill pipe size and thread type.
To ensure you get the most suitable accessories, please provide the specific drill pipe size, thread type, and drilling scenario when placing an order. Our professional technical team can also provide customized solutions and technical support to help you solve various problems encountered in the drilling process. Contact us now to learn more about product details and place your order.