Abstract: An apparatus and system for accessing a flow system (such as a subsea tree) in a subsea oil and gas production system, and method of use. The apparatus comprises a body defining a conduit therethrough and a first connector for connecting the body to the flow system. A second connector is configured for connecting the body to an intervention apparatus, such as an injection or sampling equipment. In use, the conduit provides an intervention path from the intervention apparatus to the flow system. Aspects of the invention relate to combined injection and sampling units, and have particular application to well scale squeeze operations.

Abstract: The invention provides a system for handling gas in a riser. The system comprises a riser flow spool, a riser isolation device and an upper riser disconnect assembly wherein at least the riser flow spool is connected to the riser below a riser tension ring and the upper riser disconnect assembly is located above the riser tension ring.

Abstract: The invention in one of its aspects provides a connection apparatus for a subsea hydraulic circuit and method of use in a sampling application. The apparatus comprises a longitudinal body configured to be removably docked with a subsea hydraulic circuit receptacle. The body comprises a plurality of radial ports axially displaced along the body, and an axial bore accommodating a spool having at least one fluid barrie. The spool and fluid barrier are actuable to be axially moved in the bore to control axial flow paths along the bore between the plurality of radial ports. The apparatus may be configured as a sampling hot stab in an application to sampling a production fluid from a subsea hydrocarbon production system.

Abstract: The invention provides a sampling apparatus for sampling fluid from a pipeline system during a pigging operation and a method of use. The sampling apparatus comprises an inlet configured to be coupled to the pipeline system, for receiving a fluid carried by a pigging operation from the pipeline system, and an outlet for discharging fluid from the sampling apparatus. A flow control valve is disposed between the inlet and the outlet. A first flow line is in communication with a sampling circuit and is disposed between the inlet and the flow control valve. A second flow line is in communication with a sampling circuit, and is disposed between the outlet and the flow control valve. The flow control valve is operable to be partially closed to create a pressure differential between the first and second flow lines, and drive a fluid passing through the sampling apparatus into the sampling circuit.

Abstract: A patient interface system for delivering a flow of breathable gas to a patient includes a patient interface structure configured to sealingly engage the face of the patient and a retaining element configured for application to the patient. The retaining element is configured to support the patient interface structure in sealing engagement with the face of the patient. The retaining element includes an adhesive and/or at least one strap. In addition, the patient interface structure is configured to be released from and re-engaged with the retaining element for re-positioning of the patient interface structure relative to the patient's face in a plurality of positions while the retaining element remains supported by the patient.

Abstract: A high precision vehicle localization system, including a GPS Unit configured to receive GPS signals from a GPS satellite for determining a GPS location of the vehicle, an inertial measuring unit (IMU) configured to collect vehicle inertial information, an electronic communication module configured to receive GPS correction data wirelessly from a remote source, and a controller in communication with the GPS Unit to receive the GPS signals, the IMU to receive the vehicle inertial information, and the electronic communication module to receive the GPS correction data. One of the GPS Unit and controller is configured to process the GPS signal to determine the GPS location of the vehicle. The controller is configured to fuse the GPS location of the vehicle, the inertial information, and the GPS correction data such that the accuracy or precision of the GPS location of the vehicle is increased.

Abstract: A hand tool that is capable of efficiently, inexpensively, and quickly attaching to a pipe and allows for boring an access hole to be used for accessing the inside of the pipe and unclogging the pipe.

Abstract: An apparatus and system for accessing a flow system (such as a subsea tree) in a subsea oil and gas production system, and method of use. The apparatus comprises a body defining a conduit therethrough and a first connector for connecting the body to the flow system. A second connector is configured for connecting the body to an intervention apparatus, such as an injection or sampling equipment. In use, the conduit provides an intervention path from the intervention apparatus to the flow system. Aspects of the invention relate to combined injection and sampling units, and have particular application to well scale squeeze operations.

Abstract: A patient interface is configured to deliver a flow of pressurized breathable gas to a patient's airways. The patient interface includes a central portion with an opening configured to deliver the pressurized breathable gas to the patient's nares. A first stabilizing portion extends from the central portion and is structured to engage an outer side of a respective one of the patient's nostrils. A second stabilizing portion is opposite the first stabilizing portion and extends from the central portion. In addition, the second stabilizing surface is structured to engage an outer side of a respective one of the patient's nostrils. The central portion, the first stabilizing portion and the second stabilizing portion cooperate to form a U-shape configured to cradle the patient's nose so that the tip of the patient's nose remains exposed when the patient interface is mounted on the patient's face.

Abstract: The present invention is a spark arrestor and method of using. The spark arrestor has a first chamber defined by an outer housing. The outer housing has an intake and an exhaust. The first chamber has an internal second chamber. An internal housing defines the second chamber. The internal housing has an inlet and an outlet. The internal housing inlet has a plurality of openings in fluid communication with the first airflow path and the outlet is in operative communication with the exhaust. The outer housing and the internal housing are spaced apart to create a first airflow path. The internal housing creates a second airflow path in said second chamber. The intake pulls air with entrained particulates into the first airflow path and then it enters the inlets and flows about the second airflow path with any entrained particulates engaging the outer and internal housing.

Abstract: A horizontal elongated industrial air filter having an elongated housing. The housing has a filter section with an intake and an exhaust. The housing has filter media in operative communication with the intake. Mounted adjacent the filter media is a blower to pull air into the intake through the filters and push the air out of the exhaust. Reverse pulse pipes extend through the interiors of the filter media to inject air through the filter to remove accumulated particulate. A hopper containment section extends below the filter housing section, and includes a plurality of spaced slots extending through its bottom to receive particulate ejected from said filter media. Connected to the hopper containment section is a vacuum channel to pull particulate in the hopper containment section through the slots. Mounted to the housing is a spark arrestor. The spark arrestor has an outer shell, an inlet and an inner duct with the outer shell spaced from the inner duct to define a tortuous path.

Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retro-fitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.

Abstract: A hand tool that is capable of efficiently, inexpensively, and quickly attaching to a pipe and allows for boring an access hole to be used for accessing the inside of the pipe and unclogging the pipe.

Abstract: Method and apparatus for producing direct reduced iron (DRI) powder or molten iron from iron ore fines by mixing said iron ore fines with hydrogen and oxygen and igniting the mixture in a flame reactor with flame temperatures controlled to produce solid iron powder or molten iron.

Abstract: The invention relates to a multi-resolution optical spectrometer that employs two output lenses of different focal length to provide a broad wavelength range, coarse resolution spectral measurement and a high resolution, lower range spectral measurement. Light dispersed by a virtual image phase array followed by a diffraction grating in two different dispersion orders may be separately focused by the two lenses upon to 2D detector array to provide the two measurements.

Abstract: The workstation of the present invention has a hood structure, vertical supports supporting the hood above the ground and cross supports adding strength to the structure and providing structure for mounting lights etc. The hood has at least two opposed rails, and in the disclosed embodiment four rails with each rail having a multi-purpose profile. The multi-purpose profile is generally U-shaped with a top wall, a side wall, and a bottom wall. A top flange extends generally perpendicular to the top wall and a bottom flange extends generally perpendicular to the bottom wall. The top flange and bottom flange extend generally parallel to one another and are spaced apart by a first distance. A lip extends generally perpendicular to the flange. The lip is generally parallel to the bottom wall and is spaced from the bottom wall by a second distance.

Abstract: A system and method for monitoring an air filtering system are disclosed. The system includes at least one station system attached to the air filtering system configured to monitor the air filtering system. The at least one station system includes an air filter microprocessor and an air filtering sensor to determine various aspects associated with the air filtering system and output sensed data. At least one location system is in communication with the at least one station system and also includes a location display for outputting and rendering a location graphical user interface based on the sensed data. At least one remote system is also in communication with the at least one station system and is configured to monitor and interact with the at least one location system and includes a remote display coupled to the remote microprocessor for outputting and rendering a remote graphical user interface based on the sensed data.

Abstract: A flexible industrial air filter system including a plurality of workstations, air filter units and a plurality of duct sections interconnected together to define a modular duct work grid. T-connectors are mounted between some of the sections with the workstations and air filter units positioned generally adjacent the T-connectors. Connection ducts interconnect the T-connectors and either the workstations or air filter units. Quick release connectors connect the connection ducts to the T-connectors and to the work stations and the air filter units such that the workstations and air filter units can be quickly added, removed, moved, and repositioned as desired.

Abstract: A valve apparatus (400) for a flow system in a subsea oil and gas production installation and a method of use. The valve apparatus comprises an inlet for production flow from the subsea oil and gas production installation, an outlet for production flow, and a flow control valve (420) disposed between the inlet and the outlet. A first flow line (361) in communication with a sampling circuit is disposed between the inlet and the flow control valve, and a second flow line (362) in communication with a sampling circuit is disposed between the outlet and the flow control valve. The flow control valve is operable to be partially closed to create a pressure differential between the first and second flow lines, and thereby drive a production fluid into the sampling circuit.

Abstract: A vent arrangement is provided to a mask or associated conduit to discharge exhaled gas from the mask to atmosphere. The vent arrangement is structured to diffuse the exhaust vent flow to produce less air jetting, thereby increasing the comfort of the patient and their bed partner. For example, the vent arrangement may include one or more grill components and/or media constructed and arranged to diffuse vent flow.