A

machine tools and machine tool components thereof for use in the installation of, running, hanging, and cementing casings, casing liners, and sub-sea casings on a drill pipe in a borehole, namely surge pressure reduction diverter subs for use with downhole running operations to reduce the damaging effects of surge pressure on a borehole, wiper plugs for use with downhole running operations to facilitate cementing casings, and sub-sea casings in a borehole, and valves and valve actuators for use with downhole running operations to facilitate running in and cementing casings, casing liners, and sub-sea casings in a borehole

providing oil well surge reduction services, namely the installation of, running, hanging, and cementing casings, casing liners, and sub-sea casings on a drill pipe in a borehole using surge pressure reduction tools and tool components on a drill string to protect the borehole from the damaging effects of surge pressure; rental of oil well tools used to facilitate running, hanging, and cementing casings, casing liners, and sub-sea casings with the benefits of surge pressure reduction on a drill pipe in a borehole