Multiple acting lock for gravel pack system

A multiple acting lock for a gravel pack system, comprising:

• (a) a setting sleeve having a first setting sleeve end in operative engagement with a setting piston of a setting tool, a second setting sleeve end in operative engagement with a packer of a gravel pack tool, and an inner surface with at least one recess;
• (b) a no-go sleeve disposed concentrically inside said setting sleeve and having a first no-go sleeve end longitudinally fixed on the setting tool, a second no-go sleeve end rotationally engaged with the gravel pack tool, and at least one hole through the side of said no-go sleeve in communication with said at least one recess;
• (c) a locking cylinder concentrically disposed inside said no-go sleeve which is hydraulically movable from a locked position to an unlocked position;
• and
• (d) a locking end on said locking cylinder that rotationally locks said no-go sleeve to the setting tool when said locking cylinder is in the locked position and, when said locking cylinder is in the unlocked position, said locking end move so that the setting tool can rotate relative to said no-go sleeve.

A multiple acting lock for a gravel pack system, comprising:

• (a) a setting sleeve having a first setting sleeve end in operative engagement with a setting piston of a setting tool, a second setting sleeve end in operative engagement with a packer of a gravel pack tool, and an inner surface with at least one recess;
• (b) a no-go sleeve disposed concentrically inside said setting sleeve and having a first no-go sleeve end longitudinally fixed on the setting tool, a second no-go sleeve end rotationally engaged with the gravel pack tool, and at least one hole through the side of said no-go sleeve in communication with said at least one recess;
• (c) at least one key, wider than the depth of said at least one hole, disposed in said at least one hole;
• (d) a locking cylinder concentrically disposed inside said no-go sleeve and having a locking end, an outside surface, an inside surface, a first radial ridge on said outside surface, and a second radial ridge on said inside surface that slidably seals around the outside diameter of the setting tool, said second radial ridge having an upper surface hydraulically actable upon by a pressure differential between the inside and outside of the setting tool;
• (e) at least one fastener connecting said locking cylinder to the setting tool and of a strength such that when the pressure differential is less than a predetermined amount, said at least one fastener retains said locking cylinder so that said locking end rotationally connects the setting tool to said no-go sleeve and said first radial ridge covers said at least one hole so that said at least one key extends into said at least one recess;
• and such that when the pressure differential reaches the predetermined amount, said at least one fastener releases and said locking cylinder is moved down which rotationally disconnects the setting tool from said no-go sleeve and moves said first radial ridge away from said at least one hole allowing said at least one key to be pushed inwardly out of said at least one recess.

A setting tool for a gravel pack system, comprising:

• (a) a mandrel string connectable between a work string and a cross-over tool;
• (b) a piston sleeve concentrically attached to said mandrel string;
• (c) an annular setting piston housed in said piston sleeve and hydraulically movable down said mandrel string;
• (d) a skirt attached to said setting piston extending downward and engageable with a setting sleeve of a packer on a gravel pack tool;
• (e) a no-go sleeve having at least one hole in its sidewall, a first no-go sleeve end longitudinally fixed to said mandrel string below said setting piston, and a second no-go sleeve end rotationally engaged with the gravel pack tool;
• (f) at least one key, wider than the depth of said at least one hole, disposed in said at least one hole such that is engageable with the setting sleeve so as to prevent longitudinal movement of the setting sleeve;
• and
• (g) a locking cylinder having a locking end, an outside surface, an inside surface, a first radial ridge on said outside surface, and a second radial ridge on said inside surface, said second radial ridge having an upper surface;
• said locking cylinder slidably disposed between said mandrel string and said no-go sleeve such that said second radial ridge seals around the outside diameter of said mandrel string which has a port through its sidewall proximate said upper surface;
• said locking cylinder hydraulically movable down said mandrel assembly from a locked position, wherein said locking end of said locking cylinder rotationally connects said no-go sleeve to said mandrel string and said first radial ridge covers said at least one hole keeping said at least one key in engagement with the setting sleeve;
• and an unlocked position, wherein said mandrel assembly can rotate independently of said no-go sleeve and said at least one key is movable inwardly out of engagement with the setting sleeve.