Patent ID: 6196757
Filing Date: 2001-03-06
Classification: E21B,Y10T

Abstract:
Anchoring mechanism for a guide post (1), comprising an anchor lock (4) with radially movable upper and lower dogs (11, 12) for a wire (3) from the surface, the guide post (1) having an annular ridge (14) for the abutment against a funnel (2) which is fastened to a seabed frame, and the anchor lock (4) having a weight (10) for the anchor lock, characterized in that the anchoring mechanism is comprising a guide post lock (5) with the form of a sleeve with its largest outside diameter in the upper part corresponding to the inner diameter of the guide post (1) for movement inside the guide post, the guide post lock (5) having a smaller inside diameter in the lower part corresponding to the outside diameter of the anchor lock (4) for accommodating the anchor lock (4) inside the guide post lock (5), the outside diameter of the guide post lock (5) in its lower part is stepped down in steps having a conical area between the steps for guiding of radial movements of lower lockpins (7) provided in lower radial bores in the guide post (1) adjacent its lower end, and the lockpins (7) having flanges on the inside of the guide post (1), the guide post lock (5) in its upper part with the largest outside diameter having axial slots (8) and the guide post lock (5) having at the lower edge of the slots an inside annular groove (13) crossing the slots (8) in the lower part, the slots (8) are provided with upper lockpins (6) each having a stem diameter corresponding to the width of the slots (8) and with a flange inside the guide post lock (5) against the inside of the slots (8), in that the width of the annular groove (13) is a little larger than the flange diameter of the upper lockpins (6) and the upper lockpins (6) capable of passing through upper radial bores in the guide post (1) when the guide post lock (5) is mounted inside the guide post (1).