PIPE COMPONENT FOR DRILLING AND OPERATION OF HYDROCARBON WELLS AND RESULTING THREADED JOINT Russian patent published in 2014 - IPC F16L15/06 E21B17/42 

FIELD: machine building.

SUBSTANCE: group of inventions refers to a pipe component for a threaded joint. The joint on one end is fitted with a thread zone formed on its outer or inner periphery surface depending on the type of the threaded end: male or female. The said end comes to the end surface, and the thread zone along of at least one section comprises thread turns which, if considered in the longitudinal section passing through the pipe component axis, comprise the thread turn vertex, the thread turn base, a loaded side and a striking side. The width of the thread turn vertices decreases in the direction to the end surface while the width of the thread turn bases increases. If considered in the longitudinal section passing through the pipe component axis, the profile of loaded and/or striking sides comprises a central section of a continuous curve fitted with an inflection point. The said profile is convex at the thread turn vertex and concave at the thread turn base. Threaded joint is described as well.

EFFECT: higher reliability of threaded joint.

16 cl, 5 dwg