Method and apparatus for automated connection of a fluid conduit
A connection assembly for automated lifting and positioning of a chiksan or other fluid conduit in proximity to a fluid inlet of a device such as, for example, a cement head. Once a chiksan or other flow line is positioned in a desired location, a secure connection is made between the outlet of the chiksan or other fluid conduit and the fluid inlet of a cement head including, without limitation, when the cement head is positioned at an elevated location above a rig floor.
1. A method for automated connection of a fluid conduit to a fluid inlet port of a cement head located at an elevated position above a rig floor comprising:
a) installing a lifting assembly on or in proximity to said cement head, wherein said lifting assembly further comprises:
i) a connection receiver in fluid communication with said fluid inlet port of said cement head; and
ii) a winch assembly comprising:
aa) a winch drum rotatably disposed around said cement head and
bb) a cable wrapped around said winch drum;
b) lifting a distal end of said fluid conduit having a stringer toward said cement head with said cable of said winch assembly until said stinger is at least partially received within said connection receiver;
c) actuating a locking assembly to secure said stinger to said connection receiver, wherein a fluid pressure seal is formed between said stinger and said connection receiver, and said locking assembly is controlled from a location away from said cement head;
d) pumping cement slurry through said fluid conduit, said connection receiver, and said fluid inlet port of said cement head;
e) sensing fluid pressure across said connection receiver; and
f) preventing disconnection of said stringer from said connection receiver in the event that fluid pressure is sense.
2. The method of claim 1 , wherein said cable extends from said winch assembly through a pulley assembly attached to said distal end of said fluid conduit, and wherein a distal end of said cable is anchored to said winch assembly.
3. The method of claim 1 wherein said fluid conduit comprises at least one chiksan.
4. The method of claim 1 , wherein said lifting assembly further comprises a downwardly facing and substantially conical entry guide adapted to direct said stinger at least partially into said connection receiver.
5. The method of claim 1 , wherein said winch of said lifting assembly is remotely controlled from a location away from said cement head.
6. The method of claim 1 , wherein no personnel are lifted above said rig floor.