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02 / PROPRIETARY CONNECTIONS
MRK-1: High-Torque Proprietary Connection
The MRK-1 connection is a proprietary thread design developed to provide a high-torque, cost-effective alternative to standard API casing connections. MRK-1 is engineered for reliable performance in demanding well conditions while maintaining compatibility with existing API systems.
02 / THREADIN /
FOR CASING APPLICATIONS
Connection Design Overview.
The MRK-1 connection was developed to improve torque capacity and operational reliability without introducing unnecessary complexity in the field. It is well-suited for operators looking for enhanced performance while maintaining familiar installation practices.01
Key Design Characteristics
High-torque capability compared to standard API connections. Interchangeability with API BTC connections. Positional make-up design. Compatibility with API couplings. Intended for casing applications in a range of well conditions
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Sizes and Weights
5.500" casing
7.000" casing
P110 grade configurations
Multiple weights per size
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Operational Consideration
MRK-1 connections should be treated as positional make-up connections and installed in accordance with published running procedures. Proper cleaning, inspection, torque verification, and make-up practices are required to ensure optimal performance.
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