A system and method for direct and/or active detection and monitoring of civil engineering or other infrastructural structures, and in a preferred embodiment, for hydrocarbon leakage in oil and gas pipelines, storage structures, and/or transportation structures. Particularly, the system and method relate to various nanocomposite sensor coating and data gathering systems. In one embodiment, the apparatus includes a single measurement sensor coating (thin film) sensor. Other embodiments relate to multiple measurement sensor coating systems. The sensor is comprised of either a discrete conductive filament layer, or a single or multiple mesh of interwoven filaments of conductive material in one direction and nonconductive material in a perpendicular direction, as a substrate coated with sensitive coating materials to form a sensor grid. Various embodiments of the sensor coating and their applications are also disclosed.

A connector for connecting to tubes, in particular to the cooling plate tubes, including a body having a first tubular portion and a flange on the outer circumference and at one end of the first tubular portion. The connector includes two circular or tubular seals which are spaced apart and arranged on an inner peripheral surface of the first tubular portion, in which, the connector includes a leakage channel formed between a leakage opening and the flange, the leakage opening being disposed between the seals.

An end fitting (400) for a flexible pipe is disclosed. The end fitting comprises a window (410) and a cavity (402) disposed in the end fitting radially inwards of the window and configured to be in fluid communication with an annulus of the flexible N pipe, wherein at least a portion of the cavity (402) is visible from the exterior of the end fitting via the window. The end fitting further comprises a dissolvable or dispersible material disposed within the cavity or in fluid communication with the cavity.

A swivel joint including a flange assembly and an inner joint that is configured to rotate with respect to the flange assembly. The flange assembly may include a first flange and a second flange that is secured to the first flange. The inner joint may have a main body and a radial extension extending outward from the main body with the radial extension positioned between the first flange and the second flange. A first thrust bearing may be positioned between the radial extension and the first flange, and a second thrust bearing may be positioned between the radial extension and the second flange. A first seal and a second seal may each be positioned between the flange assembly and the inner joint. A leak indicator may be positioned between the first seal and the second seal. The first and second thrust bearings may be caged bearings.

An approach for collecting disparate data within a pipe involves a sensor arrangement configured to be deployed within the pipe. The sensor arrangement includes a plurality of sensors configured to detect disparate data related to the pipe. Each sensor of the plurality of sensors is coupled to a respective collection computer on the sensor arrangement. A synchronization module is configured to synchronize the disparate data. A database is configured to store the synchronized data. A processor is configured to process the synchronized data. A user interface configured to present the synchronized data to a user.

A system to provide at least two circumferential metal to metal seals between coaxial tubulars. Where a first tubular includes a circumferential shoulder having a circumferential first metal seal and a circumferential second metal seal. A second tubular has a circumferential shoulder that matches and abuts the first tubular circumferential shoulder. Each metal seal is of a material having a higher yield strength than the second tubular shoulder such that the first metal seal and the second metal seal will penetrate the material of the second tubular shoulder thereby providing a seal. Additionally a test port is provided from the exterior of the exterior tubular to a point on either the first or second tubular between the first and second metal seals.

A pipeline pressure test that accounts for measurement uncertainties includes a method for performing a pressure test of a pipe section of a pipeline including receiving a desired pressure to be applied to the pipe section and a duration of time the desired pressure is to be applied to the pipe section, receiving a pressure measurement of a fluid, a temperature measurement of the fluid, a volume measurement of the fluid, and a pipe section strain measurement, determining a change in fluid pressure and a volume change, determining a pressure change uncertainty and a volume change uncertainty, checking that the pressure change uncertainty is within a pressure uncertainty threshold and that the volume change uncertainty is within a volume uncertainty threshold, determining whether the desired pressure has been applied to the inner surface of the pipe section for the duration of time; and outputting a result of the testing.

A computer-controlled method of automatically purging and precooling a hydrogen fuel line prior to transferring hydrogen fuel from a source to a storage tank includes purging moisture from a hydrogen fuel line. The hydrogen fuel line is configured to fluidically couple a hydrogen tanker storage tank and a fueling station storage tank, the hydrogen storage tanker storage tank and the fueling station storage tank configured to store liquid hydrogen. The method also includes pre-cooling the hydrogen fuel line, causing hydrogen fuel to flow through the hydrogen fuel line to re-fill the fueling station storage tank, and expelling residual hydrogen fuel from the hydrogen fuel line when the fueling station storage tank re-filling is complete.

Techniques for implementing and/or operating a test head that includes an end cap assembly; a bore plug assembly including a plug fastener mechanism; an inflation fluid port and an annulus fluid port that open through the end cap assembly; and an internal inflation fluid conduit that connects the inflation fluid port to the plug fastener mechanism. The end cap assembly includes a cap end plate that covers an open end of a pipe segment, a cap sleeve to be disposed around the pipe segment, and a cap fastener mechanism that runs along an inner surface of the cap sleeve and that expands inward such that the cap fastener mechanism engages an outer surface of the pipe segment. The plug fastener mechanism is to be disposed within a pipe bore of the pipe segment and expands outward such that the plug fastener mechanism engages an inner surface of the pipe segment.

A system includes first and second hose segments and a first junction device. The first hose segment includes first inner and outer hoses. The second hose segment includes second inner and outer hoses. The first junction device includes a first body including first and second chambers and a selectively openable hatch disposed on at least one of the first and second chambers. The first outer hose is fluidly connected to first chamber. The second outer hose is fluidly connected to the second chamber. The first and second inner hoses are fluidly connected. Outside of the first and second inner hoses, interiors of the first and second chambers are fluidly isolated from each other. A method of transporting liquid over land comprises connecting a first hose segment to a liquid source and connecting first and second hose segments to a first junction device.