Abstract: A tubing hanger running too assembly comprising passive motion compensation and pressure testing capability is described. Specifically, a tubing hanger running tool assembly is described which comprises a tubing hanger running tool and a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel slide relative to each other providing compression and extension along a linear axis with pressure containing seals located between the inner and outer mandrels.

Abstract: A method of running a tubing hanger and upper completion using a passively motion compensated tubing hanger running tool assembly in a subsea well located at a sea floor is described. Methods include using a tubing hanger running tool assembly comprising a tubing hanger running tool and a pressure containing slip joint to provide passive heave compensation.

Abstract: A passively motion compensated subsea well system is described. Specifically, a passively motion compensated subsea well system comprising a tubing hanger running tool assembly. The tubing hanger running tool assembly comprises a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel slide relative to each other providing compression and extension along a linear axis with pressure containing seals located between the inner and outer mandrels, and a tubing hanger running tool.

Abstract: A tubing hanger running too assembly comprising passive motion compensation and pressure testing capability is described. Specifically, a tubing hanger running tool assembly is described which comprises a tubing hanger running tool and a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel slide relative to each other providing compression and extension along a linear axis with pressure containing seals located between the inner and outer mandrels.

Abstract: A passively motion compensated subsea well system is described. Specifically, a passively motion compensated subsea well system comprising a tubing hanger running tool assembly. The tubing hanger running tool assembly comprises a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel slide relative to each other providing compression and extension along a linear axis with pressure containing seals located between the inner and outer mandrels, and a tubing hanger running tool.

Abstract: A method of running a tubing hanger and upper completion using a passively motion compensated tubing hanger running tool assembly in a subsea well located at a sea floor is described. Methods include using a tubing hanger running tool assembly comprising a tubing hanger running tool and a pressure containing slip joint to provide passive heave compensation.

Abstract: There is provided a high power laser-riser blowout preventer package and laser module for use with a subsea riser. The laser module and laser-riser package use high power laser energy to quickly cut the riser permitting an offshore drilling rig to quickly, and in a controlled manner disconnect from a blowout preventer.

Abstract: There is provided a high power laser assisted blowout preventer and methods of use. In particular, there are provided systems and assemblies for utilizing high power laser energy within a blowout preventer to cut tubulars that are present within the bore of the blowout prevent, reducing the risk that such tubulars will inhibit the ability of the blowout preventer to seal a well.

Abstract: There is provided a high power shear laser module, which can be readily included in a blowout preventer stack. The shear laser module as the capability of delivering high power laser energy to a tubular within a blowout preventer cavity, cutting the tubular and thus reducing the likelihood that the tubular will inhibit the ability of the blowout preventer to seal off a well.

Abstract: There is provided a high power shear laser module, which can be readily included in a blowout preventer stack. The shear laser module as the capability of delivering high power laser energy to a tubular within a blowout preventer cavity, cutting the tubular and thus reducing the likelihood that the tubular will inhibit the ability of the blowout preventer to seal off a well.

Abstract: There is provided a high power laser assisted blowout preventer and methods of use. In particular, there are provided systems and assemblies for utilizing high power laser energy within a blowout preventer to cut tubulars that are present within the bore of the blowout prevent, reducing the risk that such tubulars will inhibit the ability of the blowout preventer to seal a well.

Abstract: There is provided a high power shear laser module, which can be readily included in a blowout preventer stack. The shear laser module as the capability of delivering high power laser energy to a tubular within a blowout preventer cavity, cutting the tubular and thus reducing the likelihood that the tubular will inhibit the ability of the blowout preventer to seal off a well.

Abstract: There is provided a high power laser-riser blowout preventer package and laser module for use with a subsea riser. The laser module and laser-riser package use high power laser energy to quickly cut the riser permitting an offshore drilling rig to quickly, and in a controlled manner disconnect from a blowout preventer.

Abstract: The present invention is directed to completion fluid compositions and methods of making same. Such completion fluids are unique in that they utilize nanoparticles as weighting (densification) agents that increase the specific gravity (or density) of the fluid into which they are dispersed. Depending on their properties, such nanoparticulate weighting agents can vastly broaden the types of base fluid used in the completion fluid, permitting the use of non-aqueous and even hydrocarbon base fluids. Additionally, such nanoparticle-densified completion fluids can provide reduced environmental risks, and the nanoparticle weighting agents used therein can be more easily recovered from the based fluids into which they are dispersed.