Patent ID: 9181759
Filing Date: 2015-11-10
Classification: E21B

Abstract:
1. A method of increasing the load bearing capacity of a tubular string, comprising: positioning a first tubular body within a borehole, wherein the first tubular body is secured between a first substantially elongated tubular string and a second substantially elongated tubular string; wherein a top end of the first tubular body is directly coupled to a bottom end of the first elongated tubular string, and a bottom end of the first tubular body is directly coupled to a top end of the second tubular tubular string; wherein the first tubular body comprises a plurality of members for penetrating the earth, the members having a distal end with a tapered configuration; wherein the first tubular body has the same inner or outer diameter with respect to the first and second elongated tubular strings; positioning a second body within the first elongated tubular string and adjacent to the first tubular body, wherein the second body at least partially engages the first tubular body, thereby causing the members to move with respect to the first tubular body and penetrate the earth, thereby increasing the load bearing capacity of at least one of the first and second elongated tubular strings; and cementing at least one of the first and second elongated tubular strings in the borehole after the members of the first tubular body have penetrated the earth.