Patent ID: 6264395
Filing Date: 2001-07-24
Classification: E21B,Y10T

Abstract:
A slip assembly for handing tubular goods in a well drilling or workover environment in oilfield operations, comprising:a slip bowl having upper and lower ends and a tapered inner surface, the inner surface comprising a bore through said slip assembly and having a longitudinal axis and sized for passage of tubular goods;a plurality of slip segments each of which has a tapered outer surface that conforms to the shape of the slip bowl and a circumferential groove in the inner surface thereof and sized to accept a load ring at a location between said upper end and said lower end of each said slip segment;a plurality of axially aligned dies located within each of said slip segments, each of said dies having a tubular goods gripping surface facing inwardly towards the longitudinal axis of said bore; anda load ring in said circumferential groove in each slip segment, said load ring separating a set of upper dies in each of said slip segments from a set of lower dies in each of said slip segments, the set of upper dies in each of said slip segments being axially aligned in an edge-to-edge configuration with the uppermost surface of the top dies in the upper set of dies at or near the upper end of said slip bowl assembly and the lowermost surface of the lowest dies in the upper set of dies resting against said load ring, and the set of lower dies being axially aligned in an edge-to-edge relationship such that the upper surface of the top die in the set of lower dies is located near said load ring and the lower surface of the lowest dies in said set of lower dies rests against a shoulder in proximity to the nose region of said slip bowl assembly.