Abstract: A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking the top drive to the mast with a locking mechanism. The mast and the top drive are lowered together from a vertical position to a horizontal position. The combined mast and top drive may then be transported in the horizontal position without disconnecting electrical, mud line or other services.

Abstract: A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking the top drive to the mast with a locking mechanism. The mast and the top drive are lowered together from a vertical position to a horizontal position. The combined mast and top drive may then be transported in the horizontal position without disconnecting electrical, mud line or other services.

Abstract: A blowout preventer transportation and installation system. The system includes a transportation skid assembly having a transport carriage to raise the blowout preventer between a horizontal transport position and a vertical position. The transport carriage on the skid assembly moves the blowout preventer with respect to the skid assembly. A boomer assembly having a crane mounted on a carriage frame on a boomer assembly frame raises and lowers the blowout preventer. The carriage frame moves with respect to the boomer assembly frame to move the blowout preventer over a wellhead. A control line support assembly supports hose lines extending between the blowout preventer and a hydraulic power unit.

Abstract: A process to lower or raise a drilling rig for transportation wherein the drilling rig includes a mast and a top drive. The process to lower includes the steps of moving the top drive within the mast with a vertical guide and torque reaction mechanism to a locked position and locking the top drive to the mast with a locking mechanism. The mast and the top drive are lowered together from a vertical position to a horizontal position. The combined mast and top drive may then be transported in the horizontal position without disconnecting electrical, mud line or other services.

Abstract: A hand-held gem dop is described having a slender tubular handle into which is threaded a rod-like component having jaws affixed at the upper end thereof, said jaws actuated by contact with the upper rim of the tubular handle to hold gem stones for polishing. The jaws are angular, opposed and spring-loaded to hold the jaws apart in a normal position. The jaws have removable gem grips thereon which each have a pair of ears to grip a gem stone.