Casing connections should satisfy several functional and operational requirements which are presented in this article.
- to provide a leak resistance to internal or external fluid pressures
- to have sufficient structural rigidity to transmit externally applied loads
- to have good geometry in order not to increase the outer diameter or reduce the inner diameter of the casing string significantly
- easy to make-up in the field
- easy to break-out in the field
To fulfil . . .