Patent ID: 7681637

Claim:
A guide shoe for well boreholes comprising: a) a cylindrical body; b) an eccentric nose, rotatably attached to said cylindrical body and extending forwardly therefrom; c) an orientation mechanism, attached between said body and said eccentric nose, said orientation mechanism having: i) a first cylinder, said first cylinder having an open center, an outer circumference, and a hollow shaft fixedly attached to said first cylinder and passing through the open center of said first cylinder, said hollow shaft being positioned in said cylindrical body; ii) at least one pawl, formed on the outer circumference of said first cylinder; and iii) a second cylinder, said second cylinder having an open center and an outer circumference, said second cylinder being fixedly attached to said cylindrical body and being oppositely disposed from said first cylinder about said hollow shaft, said second cylinder being rotatably positioned about said hollow shaft, said second cylinder having at least two slots formed on the outer circumference of said second cylinder, such that when said pawl and one of said at least two slots are aligned, and said hollow shaft moves in an axial direction with respect to said cylindrical body and said second cylinder, said pawl locks into said one of said at least two slots; and d) a means for threadably attaching said cylindrical body to an end of a length of well tubing.