Abstract: A method for interchangeably connecting undersea a marine package with first and second pressure control devices. The method includes lowering undersea the marine package toward the first pressure control device such that a first half of a feed-thru component mounted to the marine package contacts a second half of the feed-thru component mounted on the first pressure control device; engaging the first and second halves, wherein the first and second halves of the feed-thru component were not previously engaged while the marine package and the first pressure control device were each assembled above sea; and locking the first half to the second half by using an external pressure such that a functionality of the feed-thru component is achieved.

Abstract: A flow regulator includes a flow regulating part configured to receive at an inlet a working fluid at a first pressure and to release the working fluid at an outlet at a second pressure; a slide provided inside the flow regulating part and configured to move along an axis to reduce the pressure of the working fluid; a control part attached to the flow regulating part, the control part including a chamber; a spring housing provided in the chamber and connected to the slide though a shaft, the spring housing configured to move the slide along the axis; a cap provided in the chamber and facing the spring housing, the cap being configured to have plural blind holes; and plural pins extending along the axis and attached to the spring housing, the plural pins being configured to enter the plural blind holes.

Abstract: A lifting device configured to lift a bonnet of a blowout preventer. The lifting device includes two or more lifting pins, each lifting pin including, a body having an elongated shape and configured to enter through a hole in the bonnet; a shoulder connected to the body and having an external diameter larger than an external diameter of the body; and two or more threaded regions at different locations on the body and configured to receive threaded screws, each threaded region being formed in the body such that a coordinate of the threaded region in a given inertial system is substantially identical to a coordinate of a center of gravity of a corresponding bonnet in the same given inertial system when the lifting pin is inserted into a hole of the corresponding bonnet.

Abstract: A method for connecting a lower marine riser package to a lower blowout preventer stack. The method includes lowering a frame of the lower marine riser package toward a frame of the lower blowout preventer stack such that a first half of a feed-thru component contacts a second half of the feed-thru component; floating at least one of the first half of the feed-thru component or the second half of the feed-thru component while the frame of the lower marine package is further lowered toward the frame of the lower blowout preventer stack; and engaging the first half of the feed-thru component to the second half of the feed-thru component after further lowering the lower marine riser package toward the lower blowout preventer stack.

Abstract: A lifting device configured to lift a bonnet of a blowout preventer. The lifting device includes two or more lifting pins, each lifting pin including, a body having an elongated shape and configured to enter through a hole in the bonnet; a shoulder connected to the body and having an external diameter larger than an external diameter of the body; and two or more threaded regions at different locations on the body and configured to receive threaded screws, each threaded region being formed in the body such that a coordinate of the treaded region in a given inertial system is substantially identical to a coordinate of a center of gravity of a corresponding bonnet in the same given inertial system when the lifting pin is inserted into a hole of the corresponding bonnet.

Abstract: A flow regulator includes a flow regulating part configured to receive at an inlet a working fluid at a first pressure and to release the working fluid at an outlet at a second pressure; a slide provided inside the flow regulating part and configured to move along an axis to reduce the pressure of the working fluid; a control part attached to the flow regulating part, the control part including a chamber; a spring housing provided in the chamber and connected to the slide though a shaft, the spring housing configured to move the slide along the axis; a cap provided in the chamber and facing the spring housing, the cap being configured to have plural blind holes; and plural pins extending along the axis and attached to the spring housing, the plural pins being configured to enter the plural blind holes.