Quick-release Casing QRC-3

Quick-release Casing QRC-3

This specialized threaded tubing is designed specifically for large-diameter, high-efficiency, and highly reliable completion operations. It features rapid clamping, error-resistant clamping, and high torsional resistance, making it particularly suitable for use with large-diameter tubing in offshore/deep-well/complex-structure well scenarios.

Product specifications: 9-5/8” to 13-3/8”

Steel grade: K55, N80

    Features

    This is a type of coupling-type, quick-locking special threaded connector featuring a large pitch and coarse thread design. It is used for large-diameter tubing and offers the advantages of quick locking and ease of alignment.

    Large pitch, coarse thread

    Pitch: 3 teeth/in; increase in upper clamping speed by 40% to 100%.

    Large taper guidance design

    Quick attachment process, significantly reducing the risks of cross-threading, incorrect attachment, and adhesive failure.

    Optimize the tooth profile design

    The negative-angle bearing surface enhances resistance to tensile and compressive forces; the large-angle guiding surface facilitates fastening.

    Advantages

    • Good resistance to adhesive fasteners

      The thread profile design is rational, offering excellent connection strength. The thread’s middle diameter has been optimized to enhance its resistance to sticking.

    • Torque table shoulder design

      This facilitates precise control over the positioning of the connections, making construction more convenient.

    • Internal flat connection

      After the coupling is tightened onto the pipe body, the inner hole becomes smooth, which can eliminate the occurrence of turbulent flow within the pipe.

    • The fastening process is quick

      Large angle guiding surface, high taper angle, large lead, quick locking mechanism, enhances operational efficiency.

    Why Us

    Fast, efficient, and cost-saving

    This has significantly reduced the time required for tubing operations, improved overall operational safety, and substantially lowered the overall cost of drilling.

    High connection strength and excellent resistance to adhesive fasteners

    Special thread design to prevent slipping and failure under tensile loads. Ensures that the threads for loading and unloading, as well as the sealing surfaces, do not become stuck.

    Expert technical services

    Our team of professional technical service experts is available 24/7 to provide on-site technical support for pipe installation work, helping to ensure the long-term efficient operation of equipment.

    Projects

    Construction site of Daming Drilling Company

    Application at the Construction Site of Shengli Yellow River Drilling Corporation

    Application at Dongxin Oil Extraction Plant