A system and method for identifying and measuring the quantity of leakage from a conduit used in the conveyance of a fluid, such as a hydrocarbon fluid, for example oil, or a gas, such as natural gas. The system includes a measurement device configured to measure a distributed temperature along a length of the conduit. The system further includes a processor configured to calculate a change in volume of the fluid in the conduit for each of a plurality of sections of the length of the conduit based on the distributed temperature. The processor is further configured to calculate a correction factor based on the change in volume of the fluid. The processor is also configured to calculate a corrected mass-balance differential using the correction factor, and compare the corrected mass-balance differential to a predetermined leakage threshold to identify whether a leak exists in the conduit.

A mobile fuel distribution station includes a mobile trailer, a pump, a manifold, hoses, detachably connectable fuel caps connected or connectable with the hoses, valves, and fuel level sensors. The station is configured to operate the pump responsive to a low fuel threshold to provide fuel to the manifold, from the manifold to the valves, and from the valves through the hoses. A related method includes receiving fuel operating parameter data from at least one mobile fuel distribution station into a remote server, determining whether the fuel operating parameter data is within a preset limit, and sending a control action in response to the fuel operating parameter data being outside the preset limit. A related system includes one or more of the stations, at least one server configured to receive fuel operating parameter data, and at least one electronic device configured to communicate with the server.

Methods for testing the integrity of a containment sump in contact with a matrix with a testing apparatus are provided. The testing apparatus may include an underground fixture positioned in contact the matrix, a test chamber, a conduit structure providing fluid communication between the underground fixture and the test chamber, and a pressure source for exerting a pressure that is communicated to the underground fixture via the conduit structure. In some embodiments, a method may include: releasing a test media into the containment sump; generating a negative pressure within the testing apparatus for a time period; and testing for the presence of test media within the testing apparatus. In other embodiments, a method may include: releasing a test media into the testing apparatus; generating a positive pressure within the testing apparatus for a time period; and testing for the presence of test media within the containment sump.

Methods for testing the integrity of a containment sump in contact with a matrix with a testing apparatus are provided. The testing apparatus may include an underground fixture positioned in contact the matrix, a test chamber, a conduit structure providing fluid communication between the underground fixture and the test chamber, and a pressure source for exerting a pressure that is communicated to the underground fixture via the conduit structure. In some embodiments, a method may include: releasing a test media into the containment sump; generating a negative pressure within the testing apparatus for a time period; and testing for the presence of test media within the testing apparatus. In other embodiments, a method may include: releasing a test media into the testing apparatus; generating a positive pressure within the testing apparatus for a time period; and testing for the presence of test media within the containment sump.

A pressure vessel includes a first container and a second container surrounding the first container and including a fluid port. The pressure vessel further includes a barrier space extending between the first container and the second container and a leak detection mechanism connected to the fluid port on the second container that is configured to detect a leak in the pressure vessel.

A hydrocarbon dispensation line pressure sensor adapted to work without requirement of a separate closed valve. The system closes the dispensation line upstream via an isolation valve. The pressure can be sensed from the dispensation line through the valve to provide dispensation line pressure. A channel in fluid communication with the dispensation line may be provided to allow pressure measurement apart from the main dispensation line. Further, a method for measuring the pressure drop profile of a dispensation line and various methods to determine the pressure loss due to leaks in dispensation line.

A gas monitoring system includes at least one sensor device that detects gas and outputs a detection result; and a gateway that receives the detection result. The at least one sensor device includes a sensor module having a gas sensor that detects gas; an analog-to-digital (A/D) converter that processes the detection result outputted from the gas sensor; a communication module that communicates with the sensor module and transmits information processed by the A/D converter exteriorly of the at least one sensor device; a power source that is an electric power source of the sensor module; and a power source that is an electric power source of the communication module.

A pressure vessel includes a first container and a second container surrounding the first container and including a fluid port. The pressure vessel further includes a barrier space extending between the first container and the second container and a leak detection mechanism connected to the fluid port on the second container that is configured to detect a leak in the pressure vessel.

Methods for testing the integrity of a containment sump in contact with a matrix with a testing apparatus are provided. The testing apparatus may include an underground fixture positioned in contact the matrix, a test chamber, a conduit structure providing fluid communication between the underground fixture and the test chamber, and a pressure source for exerting a pressure that is communicated to the underground fixture via the conduit structure. In some embodiments, a method may include: releasing a test media into the containment sump; generating a negative pressure within the testing apparatus for a time period; and testing for the presence of test media within the testing apparatus. In other embodiments, a method may include: releasing a test media into the testing apparatus; generating a positive pressure within the testing apparatus for a time period; and testing for the presence of test media within the containment sump.

The present disclosure discloses a method for detecting gas-storing performance of solution-mined salt cavern in a high-insoluble salt mine, comprising: detecting water-tightness of the cavern and water-tightness of a wellbore; arranging a gas sealing tubing in a production casing for the wellbore, and arranging a packer; detecting gas-tightness of the wellbore; injecting test gas into the cavern through the gas sealing tubing at a gas-injection well; calculating a volume of a discharged brine; closing the debrining well, and injecting the test gas into the cavern through the gas sealing tubing at the gas-injection well; after a pressure value above a gas-liquid interface in the cavern reaches a set pressure value, closing the gas-injection well; and detecting gas-tightness of the cavern. The method can be used for effectively, accurately and economically detecting the available gas storing space volume and the gas-tightness of the solution-mined salt cavern in salt mine.