Product

Couplings

About the product

Couplings connect two pipe sections within a tubing or casing string. They provide a strong, leak-tight connection and are crucial for the structural and hydraulic integrity of the string.

Deep Drill supplies couplings in various sizes, thread types and material grades. They are tailored to your casing or tubing configuration and are available for both standard applications and corrosive environments such as CO₂ projects.

We only offer couplings for sale. We supply them separately or pre-assembled on the pipes, including certificates and inspection documentation.

Technical specifications

- Sizes: suitable for tubing from 2 3/8" to 4 1/2", casing up to 24"

- Thread: EUE, NUE, LTC, BTC or premium thread types

- Material: carbon steel or CO₂-resistant alloys

- Sealing: standard or gas-tight version

- Optional: thread protection, marking and NDT inspection

Quality and certification

- Manufactured according to API 5CT and customer specifications

- Fully traceable at batch and serial number level

- Delivered with test reports, inspection certificates and dimensional reports

- Mechanically and visually inspected prior to shipment

Interested?

Are you looking for couplings for your string or project? Contact our sales team, we are happy to advise you on compatibility and delivery times.

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FAQ section.

  • What role does a coupling play within a string?

    A coupling connects two threaded pipes into a single closed, pressure-resistant string. Without a coupling, each connection would be a potential leak or break point.

  • Are couplings available for both casing and tubing?

    Yes. We supply couplings for all common sizes and types of pipes, tailored to your configuration.

  • Are couplings available for hire and for sale?

    No. Couplings are not available for hire from Deep Drill; they are only available for sale.

  • Do you supply couplings separately or pre-assembled?

    Both. We supply them separately or pre-assembled on casing or tubing, depending on your requirements and operational planning.

  • What quality documents will I receive upon delivery?

    You will receive batch data, material certificates and, optionally, test reports or NDT reports.

  • Can I also order customised or special thread combinations?

    Certainly. We also supply couplings with premium threads or transition combinations for specific string designs.

  • Contact our team

    Get tailored advice.

    Selecting OCTG for your programme? Contact us for specs, lead times and the right documentation. We are happy to help.

    Get in touch