Development of OCTG Connection for Automated Drilling Rigs

<jats:title>Abstract</jats:title> <jats:p>Automated drilling technology in offshore rigs is becoming increasingly important. It provides for safer working environments and increased efficiency. New tubular handling equipment and remote controlled power tongs are integral components of the new automated rigs. Connection manufacturers have to develop new products that are compatible with the new technology.</jats:p> <jats:p>In the conventional tapered connection it is possible to wedge the threads crest to crest, commonly resulting in a "galled" connection making it unusable. When manual tongs are used, the human operator is more responsive to this condition and takes corrective action prior to connection damage. With automated tongs, when this condition occurs, it is less likely to be recognized and reacted to before substantial damage has occurred.</jats:p> <jats:p>This paper describes the research data of a newly developed tapered connection design. The design is capable of being assembled quickly and easily with the characteristics of simple easy stabbing and high galling resistance. The development incorporates a unique thread profile that is distinctly different from current OCTG thread forms. The new thread form may be applied to other connections that use the API Buttress type thread form.</jats:p>