Abstract: A system and method for lessening impact on Christmas trees during downhole operations involving Christmas trees, by way of example and not limitation such as cementing processes. The system comprises an outer housing defining a chamber, a lubricator assembly disposed in the outer housing, and an inner sleeve slidably disposable within the chamber. The method uses the system of the present invention by inserting the inner sleeve into the lubricator assembly; lowering the inner sleeve into the Christmas tree to a predetermined position extending into a tubing hanger associated with the tree; introducing fluids through a fluid line coupled to the lubricator assembly, the fluids passing through a conduit within the inner sleeve into the wellbore; and retrieving the lubricator assembly upon completion of fluid introduction into the wellbore. In alternative embodiments, the inner sleeve may be retracted and withdrawn with the lubricator assembly upon completion of fluid introduction into the wellbore.

Abstract: A system and method for lessening impact on Christmas trees during downhole operations involving Christmas trees, by way of example and not limitation such as cementing processes. The system comprises an outer housing defining a chamber, a lubricator assembly disposed in the outer housing, and an inner sleeve slidably disposable within the chamber. The method uses the system of the present invention by inserting the inner sleeve into the lubricator assembly; lowering the inner sleeve into the Christmas tree to a predetermined position extending into a tubing hanger associated with the tree; introducing fluids through a fluid line coupled to the lubricator assembly, the fluids passing through a conduit within the inner sleeve into the wellbore; and retrieving the lubricator assembly upon completion of fluid introduction into the wellbore. In alternative embodiments, the inner sleeve may be retracted and withdrawn with the lubricator assembly upon completion of fluid introduction into the wellbore.

Abstract: A moon pool platform containment system is disclosed for a vessel comprising a first moon pool having a width, length, and depth, to aid in stabilizing moon pool platform motion to achieve a motion compensated moon pool submerged platform, the moon pool platform containment system a platform having a predetermined opening therethrough, the opening defining a second moon pool, the platform being sized smaller than the width and length of the first moon pool; at least one leg connected to the platform, the leg having a predetermined length; a source of leveling material; and a chamber in communication with the source of leveling material via a leveling material conduit. Leveling material may be supplied to or transferred from the chamber to supply positive or negative floatation as dictated by forces on the platform.

Abstract: A platform includes linear trackways which diverge and then lie in parallel along a given axis, and spaced apart. A plurality of flight bars, equally spaced apart, and lying traverse of the trackways, are movable along the axis and upon the platform. The bars engage rearmost, axial ends of juxtaposed, elongate products and push the products toward the trackways. Shoes supported above the platform, and lying above the trackways where they diverge, engage the products, as they are pushed along the platform, and force the products into and along the divergent trackways.

Abstract: A system for separating abrasive material from fluid used in fluid jet cutting includes a catcher tank, a settling tank and a pumping device which pumps fluid containing an abrasive material from the catcher tank and centrifugally separates an abrasive slurry from the fluid. A fluid conduit returns the fluid separated from the slurry to the cathcher tank. Another conduit directs the slurry to the settling tank where a portion of the abrasive material substantially settles from the slurry and, after settling has occurred, the slurry from which some of the abrasive material has settled is returned to the pumping device.