HSN premium connection
HSN (High Torque) is T&C connection based on the main features of the API buttress connection, offers superior torque、bending and compression resistance with its special shouldered coupling design. Being Interchangeable with API Buttress Thread, standard API accessories can be used. The connection designed for thermal well and drilling with casing applications, as well as applications where high torque is anticipated due to string rotation during running operations, such as casing when cementing and torque rotating liners while running.
●API BUTTRESS thread form
1、Threaded Coupling connection, coupling critical cross sections greater than those of the pipe body, 100% tensile efficiency；
2、Widely accepted API BTC thread form, Interchangeable with API Buttress, easily run and draw on a wide range of threading and repair shops. ;
3、Thread sealing obtained with any API connection thread compound, widely accepted pressure resistance;
1、The internal torque shoulder provides positive stop which allows for accurate power-tight make-up。
2、The robust internal torque shoulder provides high torque and high compression resistance；.
3、The internal torque shoulder works as metal to metal seal under compression loads.
●Streamlined internal profile
Internal flush design minimize turbulence and energy loss inside the connection
Excellent torque capability； Enhanced structural capacity
Field-friendly running procedures，make-up repeatability。
API Buttress compatible；
Torque rotating liner & casing ；Casing while Drilling；
Thermal well including steam injection