Drill Collar-Slick and Spiral Downhole Pipe

Drill Collar-Slick and Spiral Downhole Pipe

Drill Collar Thread ModelO.D. (mm)O.D. (in)I.D. (mm)I.D. (in)Length (mm)
NC23-3179.43-1/831.81-1/49150
NC26-3588.93-1/238.11-1/29150
NC31-41(2-7/8IF)104.84-1/850.829150

 

Drill Collar – Slick and Spiral Downhole Pipe

Introduction:

Drill Collar-Slick and Spiral Downhole Pipe212

The Drill Collar is designed using AISI 4145H alloy steel or finish rolling structural alloy steel, meeting the stringent requirements of API SPEC 7 standards. During the manufacturing process, each stage—from workblank, heat treatment, thread connection, to the final product—is rigorously tested and traceable. This ensures that all drill collars meet the required performance standards.

All the threads of drill collars undergo specialized treatments, including phosphatization or copper plating, to enhance corrosion resistance and prevent thread gluing phenomena that could compromise tool integrity.

Our company can also provide customized processing, such as adding slips and elevator grooves to drill collars according to specific user requirements.


Main Features:

Drill Collar-Slick and Spiral Downhole Pipe212

  • Corrosion Resistance: Phosphatization or copper plating on threads to prevent corrosion and thread gluing.
  • Customization: Optional features like slips and elevator grooves can be customized.
  • High Strength Material: Made from AISI 4145H alloy steel, known for its strength and durability.
  • API Compliant: Manufactured in strict compliance with API SPEC 7 standards.
  • Traceability: Test data for every performance test conducted on materials, including workblank, heat treatment, and threads.

Epoxy FRP Pipe Internal Heating Curingw


Drill Collar-Slick and Spiral Downhole Pipe212

Drill Collar Thread ModelO.D. (mm)O.D. (in)I.D. (mm)I.D. (in)Length (mm)
NC23-3179.43-1/831.81-1/49150
NC26-3588.93-1/238.11-1/29150
NC31-41(2-7/8IF)104.84-1/850.829150
NC35-47120.74-3/450.829150
NC38-50(3-1/2IF)127.0557.22-1/49150
NC44-60152.4657.22-1/49150/9450
NC44-60152.4671.42-13/169150/9450
NC44-62158.86-1/457.22-1/49150/9450
NC46-62(4IF)158.86-1/471.42-13/169150/9450
NC46-65(4IF)165.16-1/257.22-1/49150/9450
NC46-65(4IF)165.16-1/271.42-13/169150/9450
NC46-67(4IF)171.46-3/457.22-1/49150/9450
NC50-67(4-1/2IF)171.46-3/471.42-13/169150/9450
NC50-70(4-1/2IF)177.8757.22-1/49150/9450
NC50-70(4-1/2IF)177.8771.42-13/169150/9450
NC50-72(4-1/2IF)184.27-1/471.42-13/169150/9450
NC56-77196.87-3/471.42-13/169150/9450
NC56-80203.2871.42-13/169150/9450
6-5/8REG209.68-1/471.42-13/169150/9450
NC61-90228.6971.42-13/169150/9450
7-5/8REG241.39-1/276.239150/9450
NC70-97247.69-3/476.239150/9450
NC70-100254.01076.239150/9450
8-5/8REG279.41176.239140/9450

Applications of Drill Collars

Drill Collar – Slick and Spiral Downhole Pipe


Main Features :

  • Standard Threading Options: Threads are available in NC and IF configurations for compatibility with various drilling equipment and requirements.
  • Customizable Lengths: Drill collars can be produced in varying lengths up to 9150 mm based on specific project needs.
  • Enhanced Durability: The corrosion-resistant treatments on threads extend the lifespan of the tool, reducing the frequency of maintenance and replacement.
  • Traceable Manufacturing: From the raw materials to the final finished product, all processes are thoroughly documented for traceability, ensuring consistent quality control at every stage.
  • High Load Capacity: Due to the high tensile strength of the materials used, these drill collars can handle significant weight and pressure, making them ideal for challenging downhole environments.

Technical Data

Drill Collar Thread ModelO.D. (mm)O.D. (in)I.D. (mm)I.D. (in)Length (mm)
NC23-3179.43-1/831.81-1/49150
NC26-3588.93-1/238.11-1/29150
NC31-41(2-7/8IF)104.84-1/850.829150
NC35-47120.74-3/450.829150
NC38-50(3-1/2IF)127.0557.22-1/49150
NC44-60152.4657.22-1/49150/9450
NC44-60152.4671.42-13/169150/9450
NC44-62158.86-1/457.22-1/49150/9450
NC46-62(4IF)158.86-1/471.42-13/169150/9450
NC46-65(4IF)165.16-1/257.22-1/49150/9450
NC46-65(4IF)165.16-1/271.42-13/169150/9450
NC46-67(4IF)171.46-3/457.22-1/49150/9450
NC50-67(4-1/2IF)171.46-3/471.42-13/169150/9450
NC50-70(4-1/2IF)177.8757.22-1/49150/9450
NC50-70(4-1/2IF)177.8771.42-13/169150/9450
NC50-72(4-1/2IF)184.27-1/471.42-13/169150/9450
NC56-77196.87-3/471.42-13/169150/9450
NC56-80203.2871.42-13/169150/9450
6-5/8REG209.68-1/471.42-13/169150/9450
NC61-90228.6971.42-13/169150/9450
7-5/8REG241.39-1/276.239150/9450
NC70-97247.69-3/476.239150/9450
NC70-100254.01076.239150/9450
8-5/8REG279.41176.239140/9450

Applications of Drill Collars

  • Oil and Gas Drilling: Used in vertical and horizontal drilling operations in the oil and gas industry.
  • Heavy-duty Applications: Well-suited for deep drilling operations where high mechanical strength and resistance to wear are essential.
  • High-Pressure and High-Temperature Environments: Able to withstand extreme conditions, including high-pressure downhole environments and elevated temperatures.
  • Customization for Specific Drilling Needs: Custom lengths, thread types, and processing options can be tailored to meet specific client requirements.

Advantages of Using Our Drill Collars:

  • Long Lifespan: Due to the robust materials and advanced corrosion resistance, the drill collars offer a long service life, reducing downtime and operational costs.
  • Cost-Effectiveness: The high tensile strength and reduced maintenance needs lead to lower overall operational costs over time.
  • Enhanced Safety: The corrosion resistance and precision manufacturing reduce the likelihood of tool failure, improving overall safety during drilling operations.
  • Customization Options: Our ability to customize drill collars, including specialized thread treatments and additional features, ensures compatibility with a variety of drilling systems and operational requirements.

Conclusion

Our Drill Collars are engineered for superior performance in demanding downhole applications. Designed using high-quality alloy steel, these collars comply with API SPEC 7 standards, ensuring durability and reliability. Whether for oil and gas drilling or high-pressure applications, our drill collars provide the strength and customization needed for optimal operation.

Main Features :

  • Standard Threading Options: Threads are available in NC and IF configurations for compatibility with various drilling equipment and requirements.
  • Customizable Lengths: Drill collars can be produced in varying lengths up to 9150 mm based on specific project needs.
  • Enhanced Durability: The corrosion-resistant treatments on threads extend the lifespan of the tool, reducing the frequency of maintenance and replacement.
  • Traceable Manufacturing: From the raw materials to the final finished product, all processes are thoroughly documented for traceability, ensuring consistent quality control at every stage.
  • High Load Capacity: Due to the high tensile strength of the materials used, these drill collars can handle significant weight and pressure, making them ideal for challenging downhole environments.
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