Abstract: A apparatus and method of using the apparatus for removing a blockage in a subsea pipeline without retrieval of the pipeline to the surface. The apparatus components include a hot tap saddle, a drill assembly, a fluid blaster assembly and a support frame. The hot tap saddle component has a first portion and a second portion, with the first and second portions being configured to clampingly engage in a sealing relationship to the subsea pipeline. The first portion of the saddle includes a first and second opening with the first opening extending generally upwardly and configured for connecting to a drill assembly and the second opening being positioned generally at an angle to the first opening and configured for connecting to a fluid blaster assembly. The fluid blaster assembly including a nozzle, a hose and a high pressure pump with the fluid blaster assembly being contained within a pressure vessel. The fluid blaster assembly is configured for mounting to the second opening of the hot tap saddle component.

Abstract: A bore selector assembly having a unitary bottom section having primary and secondary inlet passageways extending therethrough, a unitary interior section having a bore therethrough, a unitary top section with a primary outlet passageway therethrough, and an outer sleeve extending over the interior section and securing the bottom, interior and top sections together.

Abstract: A diverless flowline connection system for connecting a flowline to a subsea wellhead or other subsea structure. The diverless flowline connection system is used with a remotely operated vehicle. The diverless flowline connection system includes a frame assembly including clamping arms for mounting the frame assembly to the flowline. A pair of winches are mounted to the frame assembly. Each winch includes a winch line for attachment to the wellhead to which the flowline is to be connected. Each winch is independently controlled so that the lateral position of the flowline may be variously adjusted by controlling each of the winches. The diverless flowline connection system is of modular design to accommodate a wide variety of flowline diameters. The connection system can also be used to pull from the wellhead. Winch line guillotines are provided for severing the winch lines and the clamping arms release the flowline in the event of hydraulic system failure.

Abstract: An apparatus for removing soil and other debris from around buried objects. The apparatus comprises a movable frame which supports plurality of rotatable and independently mounted brushes which are used to gently sweep across the soil to remove soil and other debris from the covered objects. The soil is then transferred to a collection box within the movable frame for subsequent removal. The frame is capable of horizontal, vertical and rotational movement.

Abstract: A removal apparatus which includes a container adapted to store removed soil, which is supported from the end of a crane, which applies a downward load on the container to keep it against the contaminated soil and advancing forward. The removal apparatus features a replaceable blade which is attached at the forward end of the container at a predetermined level to define the depth of the cut. Vertical cheek plates are attached at either side of the container to cut the end of the soil at the outer edges of the blade and to provide vertical side wall support to confine the soil within the container. Front and rear dust control chambers are provided which restrict the movement of airborne contaminants. The container includes a sensor to monitor the level of contaminated soil remaining after a cut. Prior to removal, an initial survey is made of the area is made using a sensor capable of determining the level of the contaminants in the soil.

Abstract: A hydraulic connector having a first assembly releasably connected to a second assembly. The first assembly includes a substantially cylindrical body having a longitudinal bore therethrough and a receptacle portion surrounding the longitudinal bore. The first assembly has an internal circumferential chamber therein. The chamber has an upper portion and a lower portion. The second assembly includes a substantially cylindrical body having a longitudinal bore therethrough and a protruding portion having an external circumferential groove. A movable locking ring is housed in the lower portion of the chamber. The locking ring has a first surface to matingly engage the circumferential groove. A piston is slidably received in the chamber. The piston is permitted to move axially relative to the first assembly. The piston has an upper head and a lower head connected by a sleeve segment. The piston and the chamber form individual chambers for locking and unlocking.

Abstract: An improved subsea template system. A drilling template is adapted to rest on the seafloor. The drilling template includes at least one conductor guide through which a well is drilled. An alignment structure is attached to the top of the conductor guide and fits within a conductor guide of a production template. The production template includes at least one conductor guide more than the drilling template. Once engaged, the alignment sleeve serves to coaxially align the conductor guide of the drilling template with a corresponding conductor guide of the production template.

Abstract: A hydraulic connector having a first assembly releasably connected to a second assembly. The first assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a receptacle portion surrounding the longitudinal bore. The first assembly has an internal circumferential chamber therein. The chamber has an upper portion and a lower portion. The second assembly comprises a substantially cylindrical body having a longitudinal bore therethrough and a protruding portion having an external circumferential groove. A movable locking ring is housed in the lower portion of the chamber. The locking ring has a first surface to matingly engage the circumferential groove. A piston is slidably received in the chamber. The piston is permitted to move axially relative to the first assembly. The piston has an upper head and a lower head connected by a sleeve segment. The piston and the chamber form individual chambers for locking and unlocking.

Abstract: An apparatus for removing a predetermined amount of contaminated overburdened soil. The apparatus comprises a container adapted to move along the soil. It is advanced forward and controlled by a backhoe or other crane configuration. A blade is attached at the front end of the container to cut a predetermined layer of overburdened soil. Vertical plates are included to cut the edge of the soil at the outer ends of the blades and confine the soil within the container. An air control device is also provided for controlling the flow of airborne particulates resulting from the cutting operation.

Abstract: A concentric riser joint comprising inner and outer tubular assemblies each having a longitudinal bore therethrough. An annular space is formed between the inner and outer tubular assemblies. The outer tubular assembly comprises a tubular element having a pin end coupling connected to a first end and a box end coupling connected to a second end of the tubular element. A cylindrical retainer plate is received in the pin end coupling. The cylindrical retainer plate has an inner bore for receiving the inner tubular assembly therethrough. The retainer plate further includes a plurality of longitudinal bores extending therethrough. A seal sub is connected to one end of the inner tubular assembly. The seal sub is partially received in the box end coupling and includes a plurality of longitudinal passageways extending therethrough. A threaded nut connects the outer tubular assembly to an adjoining concentric riser joint.

Abstract: An improved umbilical connector for preferable use in a subsea application. The apparatus includes a female portion and a male portion having connections located within, and a threadable fastener on the male and female halves intended to threadably engage thereby advancing and locking the male half within the female half of the present invention.