Patent ID: 7837041
Filing Date: 2010-11-23
Classification: F16L

Abstract:
1. A method for predicting the performance of an endform tubular assembly in high: pressure applications for prolonged periods of time, wherein said endform tubular assembly possesses a plurality of measurable elements inherently formed in said endform tubular assembly during the manufacture of said endform tubular assembly, said method comprising: (a) providing an endform tubular assembly comprising: (b) measuring at least one of said bead diameter and said length of said gauge diameter depth to obtain at least one measured value thereof; (c) comparing said at least one measured value to a corresponding predetermined value; (d) determining the robustness of said endform tubular assembly from said measured value; (e) predicting whether said endform tubular assembly exhibiting said determined robustness will perform satisfactorily in high pressure application for prolonged periods of time; (f) discarding endform tubular assemblies exhibiting unsatisfactory robustness; and (g) recovering endform tubular assemblies exhibiting satisfactory robustness.