Patent ID: 6990719
Filing Date: 2006-01-31
Classification: E21B,F16L,Y10T

Abstract:
1. A method of making up a tubular connection, comprising: stabbing a threaded pin member into a threaded box member, said pin member including pin threads and said box member having box threads, said pin threads having stab flanks and load flanks and said box threads having stab flanks and load flanks; engaging corner radiuses on the stab flanks of the pin threads and the box threads; forming a clearance between said threads; rotating the pin and box members relative to each other; guiding said threads on the pin and box members within accommodating grooves on the corresponding pin and box member; engaging contours radiused surfaces on an end of the box member and a base of the pin member; shifting load from the stab flanks to the load flanks on the threads of the pin member and the box member; and locking up the radiused surfaces the radiused surfaces fully contacting each other along the contours.